CN109853332B - Plant-mixed heat regenerated material heating device - Google Patents
Plant-mixed heat regenerated material heating device Download PDFInfo
- Publication number
- CN109853332B CN109853332B CN201910270100.9A CN201910270100A CN109853332B CN 109853332 B CN109853332 B CN 109853332B CN 201910270100 A CN201910270100 A CN 201910270100A CN 109853332 B CN109853332 B CN 109853332B
- Authority
- CN
- China
- Prior art keywords
- roller
- ring
- feeding
- wall
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to a plant-mixed hot reclaimed material heating device which is used for solving the problems of large asphalt aging degree, bag blockage caused by generated asphalt smoke and asphalt dust, flash explosion possibly caused when the concentration is too high and the like in the working process of conventional equipment in the background art; the invention comprises a double-layer roller, a sealing component, a burner, a driving unit, a bottom frame and a feeding smoke box; the double-layer roller comprises an outer roller sleeved on the inner roller; the inner roller and the outer roller are respectively provided with a driving unit; the inner drum is provided with an inner drum lifting blade, and the outer drum is provided with a guide blade; the regenerated material feeding ring and the discharging ring are respectively sleeved at two ends of the outer roller, the regenerated material feeding ring and the discharging ring are both fixed on the underframe, the regenerated material feeding ring is provided with a feeding hole, and the discharging ring is provided with a discharging hole; the feeding smoke box and the burner are arranged at two ends of the inner roller; and sealing components are arranged at the joints of the feeding smoke box, the discharging ring and the regenerated material feeding ring, the inner roller and the outer roller.
Description
Technical Field
The invention belongs to equipment used for asphalt stirring, and particularly relates to a heating device for a plant-mixed hot reclaimed material.
Background
The prior asphalt reclaimed material heating equipment has the following common defects:
1. the conventional single-drum plant-mixed heat regeneration equipment adopts a burner with high-temperature flue gas reaching about 1000-1200 ℃ or a hot blast furnace with hot air temperature of 500-600 ℃ for heating, and after the asphalt reclaimed materials are heated by the method, the generated asphalt flue gas is more and the aging degree of asphalt is large, so that the road performance of the reclaimed asphalt mixture is greatly influenced;
2. in the conventional single-roller plant-mixed heat regeneration equipment, asphalt can be adhered to the wall of the cylinder in the heating process, an adhesive layer is formed, and in the continuous heating process of the roller, massive adhesive materials can fall down, so that the grading of regenerated materials is affected, and the maintenance cost of the equipment can be increased due to the fact that asphalt is adhered to the wall of the cylinder.
To solve the above problems, patent publication No. CN 103088743a discloses a continuous type reclaimed asphalt mixture stirring apparatus, the working procedure of which is as follows:
as shown in fig. 1, the raw aggregate enters the inner roller 31 through the feeding chute 6, enters a heat exchange area of the inner roller 31 under the action of the rotation of the inner roller 31 and the spiral feeding blades, is lifted and thrown off under the action of the material containing blades and the material lifting blades, fully exchanges heat with high-temperature flue gas generated by the burner 4, and moves towards the blanking hole 311 in the roller; meanwhile, the recycled reclaimed materials are crushed and then sent into the inner roller 31 through the belt conveying device 7, fall into the material cavity 36 from the blanking hole 311 under the action of the rotation of the inner roller 31 and the spiral discharging blade, and the heated raw aggregate and high-temperature flue gas enter the material cavity 36 through the blanking hole 311; a part of the reclaimed materials entering the material cavity 36 exchange heat with the high-temperature virgin aggregate, and the other part exchanges heat with the high-temperature flue gas to improve the temperature of the reclaimed materials; meanwhile, the primary aggregate and the recycled aggregate are premixed under the action of the first mixing blade and the second mixing blade, the premixed material flows out of a recycled material discharging hole 351 on a discharging end plate 35 through a spiral discharging blade and enters a continuous mixing host machine 5, a foam asphalt feeding hole 51, a powder feeding hole 52 and a premixed material feeding hole 53 which are covered by the mixing host machine are switched according to a formula, and under the action of the continuous mixing host machine 5, the premixed material is fully mixed with asphalt and powder and flows out of a recycled asphalt mixture finished product discharging hole 54.
However, the continuous regenerated asphalt mixture stirring equipment still has the following problems when drying the regenerated asphalt:
1. the equipment adopts concurrent heating, the movement direction of the material is the same as the movement direction of high-temperature flue gas, a flue gas outlet is positioned at a discharge end, the material is high, and the temperature of tail gas is about 180-200 ℃; the temperature of the downstream heating tail gas is higher, the problem of low energy utilization rate exists, and the service life of the cloth bag can be influenced;
2. the high-temperature flue gas in the equipment passes through the outer roller to the flue gas outlet, asphalt reclaimed materials are heated by convection of the high-temperature flue gas, the high-temperature flue gas is high in temperature, and asphalt ageing to a large extent and generation of more asphalt flue gas still exist, so that the road performance of the reclaimed asphalt mixture is affected;
3. the device adopts a convection heating mode to heat asphalt regenerated material, and under the induced air action of a cloth bag dust remover connected with a flue gas outlet, the flowing high-temperature flue gas is used for heating the regenerated material, so that the wind speed in a roller is very high, most of asphalt flue gas and asphalt dust generated by heating can be sucked into the cloth bag dust remover, cloth bag blockage is easy to occur, and certain potential safety hazards possibly exist when the concentration of the asphalt flue gas and the asphalt dust in the roller reaches a certain degree; in addition, the discharged gas still can not meet the environment protection requirement after dust removal.
Disclosure of Invention
In order to solve the problems that asphalt ageing degree is high, cloth bags are blocked due to asphalt smoke and asphalt dust generated in the working process of equipment provided in the background art, certain potential safety hazards possibly exist due to the fact that the concentration of the asphalt smoke and the asphalt dust is too high, and the like, the invention provides a plant-mixed heat regenerated material heating device.
In order to achieve the above object, the technical solution of the present invention is:
the plant-mixed hot regenerated material heating device comprises a double-layer roller, a sealing assembly, a burner support, a driving unit and a double-layer roller, wherein the double-layer roller comprises an inner roller and an outer roller, and the outer roller is sleeved on the inner roller; the special feature is that: the device also comprises a discharging ring, a regenerated material feeding ring and a regenerated material feeding ring;
the double-layer roller is obliquely arranged downwards along the travelling direction of the new aggregate;
the inner roller and the outer roller are respectively provided with a driving unit, and the driving units are fixed on the underframe;
the regenerated material feeding ring and the regenerated material discharging ring are respectively sleeved on the outer walls of the two ends of the outer roller and are communicated with the inside of the outer roller, and meanwhile, the regenerated material feeding ring and the regenerated material discharging ring are fixed on the underframe;
a feed inlet is arranged on the regenerated material feed ring; a discharge hole is arranged on the discharge ring;
the inner side wall of the outer drum is provided with outer drum guide blades;
the feeding smoke box is arranged at one end of the inner roller; the feeding smoke box is fixed with the underframe; an inclined partition board is arranged in the feeding smoke box; the partition plate extends from the top of the feeding smoke box to the bottom of the inner roller; the part of the upper end of the feeding smoke box, which is separated by the baffle plate, is a smoke outlet, and the part of the lower end of the feeding smoke box, which is separated by the baffle plate, is a feeding channel; the front side of the feeding smoke box is communicated with the feeding channel, and a feeding port is formed in the partition plate;
the burner is arranged at the other end of the inner roller, the combustion end of the burner is arranged in the inner roller, and the burner main body is arranged on the burner bracket;
the inner wall of the inner roller is provided with a wrapping blade; the wrapper blades are arranged in the combustion area of the combustor;
the inner wall of the inner roller is also provided with inner barrel lifting blades;
the inner roller is provided with an inner cylinder discharge hole communicated with the inside of the outer roller, and the position of the inner cylinder discharge hole corresponds to the regenerated material feeding ring;
the sealing assembly comprises 3 groups of first sealing assemblies and 2 groups of second sealing assemblies, and the first sealing assemblies and the second sealing assemblies have the same structure;
the 3 groups of first sealing components are respectively arranged at the positions of the feeding smoke box and the outer wall of the inner roller, the positions of the discharging ring and the outer wall of the inner roller and the positions of the regenerated material feeding ring and the outer wall of the inner roller;
the second sealing assemblies of the 2 groups are respectively arranged at the connection position of the discharging ring and the outer wall of the outer roller and the connection position of the regenerated material feeding ring and the outer wall of the outer roller.
Preferably, the first sealing component comprises a soft rubber ring, a sealing pressing plate and a sealing cone plate;
the sealing cone plate is sleeved on the outer wall of the inner roller, and one side edge of the soft rubber ring is connected with the sealing cone plate through the sealing pressing plate; the edge of the other side is tightly attached to the end plate of the regenerated material feeding ring or the end plate of the discharging ring or the end plate of the feeding smoke box.
Preferably, the inner roller and the outer roller are independently driven in two ways;
first, a friction-driven drive unit;
the friction transmission driving unit comprises a rolling ring, a butterfly plate, a rolling ring supporting device and a power unit;
the rolling ring supporting device comprises a rolling shaft, a bearing seat and a rolling wheel;
the roller is fixedly sleeved on the roller;
two ends of the roller are respectively arranged on the bearing seat through bearings, and one end of the roller extends out of the bearing seat to be connected with the power unit;
the bearing seat is fixed on the underframe;
the rolling ring is fixedly sleeved on the outer wall of the inner roller or the outer roller through a butterfly plate; the rolling ring is contacted with the roller.
Second, a sprocket drive unit:
the driving unit driven by the chain wheel comprises a chain ring, a small chain wheel, a chain, a driver and a supporting unit;
the chain ring is arranged on the outer wall of the inner roller or the outer roller, the small chain wheel is arranged on the output shaft of the driver, the small chain wheel and the chain ring are transmitted through a chain, and the driver is arranged on the underframe;
the inner roller and the outer roller are both provided with supporting units; the supporting unit comprises a rolling ring, a butterfly plate and a rolling ring supporting device;
the rolling ring supporting device comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the rolling shaft are respectively arranged on the bearing seat through bearings;
the bearing seat is fixed on the underframe;
the rolling ring is fixedly sleeved on the outer wall of the inner roller or the outer roller through a butterfly plate; the rolling ring is contacted with the roller.
Preferably, the power unit takes the form of a hollow shaft gear motor or a solid shaft gear motor and a coupling.
Preferably, in order to make the inner roller and the outer roller more stable when rotating, two groups of supporting units are respectively arranged at two ends of the inner roller and the outer roller; the driver adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupler.
Preferably, in order to achieve the inclined arrangement of the double-layered drum with a simpler structure, the bottom frame is downwardly inclined along the traveling direction of the new aggregate.
Preferably, in order to make the heat distribution more uniform when the inner roller is heated, the axis of the combustion end of the burner coincides with the axis of the double-layer roller.
Preferably, in order to enable the mixture in the outer roller to move towards the discharge end better, the outer cylinder guide blades are arranged in a spiral line.
Preferably, in order to enable the materials to enter the inner roller and the outer roller more conveniently, the inner wall of the outer roller is provided with an outer cylinder guide plate, and the position of the outer cylinder guide plate corresponds to the ring surface of the regenerated material feeding ring; an inner cylinder guide plate is arranged in the feeding end of the inner cylinder.
The invention has the advantages that:
1. compared with the existing high-temperature flue gas heating mode, the high-temperature flue gas does not pass through the outer roller, and the reclaimed materials and the high-temperature flue gas are not contacted, so that the heating temperature is greatly reduced, the ageing degree of the asphalt reclaimed materials is further reduced, the flue gas of the asphalt is reduced, and the road performance of the reclaimed asphalt mixture is greatly improved.
2. The new aggregate is heated in a high-temperature smoke countercurrent mode, the movement direction of the new aggregate is opposite to the movement direction of the high-temperature smoke, a smoke outlet is positioned on a feeding smoke box, the temperature of the new aggregate at the feeding end is low, and after the heat of the smoke is absorbed by the new aggregate, the temperature of tail gas at the smoke outlet is reduced to about 100 ℃; compared with forward heating, the countercurrent heating has low tail gas temperature, saves energy and has high heating efficiency; under the induced air effect of the bag-type dust remover connected with the flue gas outlet, the pressure difference exists between the inner roller and the outer roller, a small amount of asphalt flue gas and asphalt dust generated in the outer roller are discharged from the discharge hole of the inner roller and enter the inner roller again, and most of asphalt flue gas and asphalt dust generated in the inner roller pass through the combustion area of the inner roller and are subjected to combustion treatment; the residual very small amount of tail gas after combustion treatment is sucked into the cloth bag dust remover, so that the cloth bag is not blocked, the potential safety hazard that flash explosion can occur when the concentration of asphalt smoke and asphalt dust reaches a certain degree is avoided, the service life of the cloth bag is prolonged due to low temperature of the tail gas, and the effects of environmental protection and energy saving can be achieved.
3. The device heats the asphalt regeneration material through heat conduction of the new aggregate and the asphalt regeneration material and heat radiation of the outer wall of the inner roller, asphalt in the heated asphalt regeneration material can be adhered to the new aggregate, adhesion of the asphalt regeneration material to the wall of the roller is avoided, maintenance cost is reduced, and meanwhile, the effects of environmental protection and energy saving are achieved.
4. The outer cylinder rotational speed of this device does not receive the influence of interior cylinder rotational speed, adjusts interior cylinder rotational speed and can not influence the rotational speed of mixture in outer cylinder, can not influence the dwell time of mixture in outer cylinder promptly to can not influence the ejection of compact temperature of mixture.
5. The outer cylinder guide blades are arranged on the inner wall of the outer cylinder, new aggregate and reclaimed materials enter the outer cylinder, and the outer cylinder guide blades drive the new aggregate and reclaimed materials to move towards the discharging ring in the lifting and falling process along with the rotation of the outer cylinder, the mixture is positioned on the inner wall of the outer cylinder at the moment, the abrasion of the inner wall of the outer cylinder is small, and the mixture is hardly contacted with the outer wall of the inner cylinder; the inner roller rotates, the outer roller is fixed, the regeneration heating device for stirring slurry is arranged on the outer wall of the inner roller, and the mixture frequently rubs with the inner wall of the outer roller in the stirring process of stirring slurry, so that the inner wall of the outer roller is worn greatly, and the equipment maintenance cost is increased.
Drawings
FIG. 1 is a schematic structural view of a continuous reclaimed asphalt mixture stirring apparatus provided in the background art;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a view A-A of FIG. 2;
FIG. 5 is a view B-B of FIG. 2;
FIG. 6 is a view C-C of FIG. 2;
FIG. 7 is a schematic view of a first seal assembly;
fig. 8 is a front view of a second embodiment of the present invention.
The reference numerals are as follows:
1-bracket, 2-tug device, 3-double-layer roller, 31-inner roller, 311-blanking hole, 32-outer roller, 33-raw material feeding end plate, 331-raw material feeding port, 332-burner interface, 34-regenerated material feeding end plate, 341-regenerated material feeding port, 35-discharging end plate, 351-regenerated material discharging port, 352-smoke outlet, 36-material cavity, 4-burner, 5-continuous stirring host, 51-foam asphalt feeding port, 52-powder feeding port, 53-pre-stirring feeding port, 54-combined finished product discharging port, 6-feeding chute and 7-belt conveying device;
10-inner cylinder guide plates, 20-inner cylinders, 30-rolling rings, 40-butterfly plates, 50-inner cylinder lifting blades, 60-chain rings, 70-outer cylinders, 80-regenerated material feeding rings, 90-outer cylinder guide plates, 100-soft rubber rings, 110-sealing pressing plates, 120-sealing conical plates, 130-outer cylinder guide blades, 140-discharging rings, 150-small chain wheels, 160-chains, 170-drivers, 180-rolling ring supporting devices, 190-power units, 200-burners, 210-burner supports, 220-underframe, 230-first supporting legs, 240-second supporting legs, 250-third supporting legs, 260-feeding smoke boxes, 270-wrapping blades, 280-inner cylinder discharging holes and 300-partition plates.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
as shown in fig. 2 to 7, the plant mix hot recycle heating apparatus comprises a double drum, a sealing assembly, a burner 200, a burner support 210, a driving unit and chassis 220, a discharge ring 140, a recycle feed ring 80 and a feed smoke box 260.
The double-layer roller comprises an inner roller 20 and an outer roller 70, wherein the outer roller 70 is sleeved on the inner roller 20.
The inner drum 20 and the outer drum 70 are respectively provided with driving units, and the driving units are fixed on the bottom frame 220;
the first leg 230, the second leg 240 and the third leg 250 of the underframe 220 are designed to have different lengths, so that the supporting surface of the underframe 220 forms an included angle of 3-5 degrees with the horizontal plane; the axes of the double-layered rollers are parallel to the supporting surface of the bottom frame 220, so that the outer roller 70 and the inner roller 20 form an included angle of 3-5 degrees with the horizontal plane downward along the traveling direction of the new aggregate.
The regenerated material feeding ring 80 and the regenerated material discharging ring 140 are respectively sleeved on the outer walls of the two ends of the outer roller 70 and are communicated with the interior of the outer roller 70, and meanwhile, the regenerated material feeding ring 80 and the regenerated material discharging ring 140 are fixed on the underframe 220.
A feed inlet is arranged on the regenerated material feed ring 80; the discharge ring 140 is provided with a discharge port.
The inner side wall of the outer roller 70 is provided with outer cylinder guide blades 130, and the outer cylinder guide blades 130 are in spiral arrangement; the inner wall of the outer roller 70 is provided with an outer cylinder guide plate 90, and the position of the outer cylinder guide plate 90 corresponds to the ring surface of the regenerated material feeding ring 80.
The feeding smoke box 260 is arranged at one end of the inner roller 20; the feeding smoke box 260 is fixed with the bottom frame 220;
an inclined partition plate 300 is arranged in the feeding smoke box 260; the partition 300 extends from the top of the feed smoke box 260 to the bottom of the inner drum 20; the part of the upper end of the feeding smoke box 260 separated by the partition plate 300 is a smoke outlet, and the part of the lower end of the feeding smoke box 260 separated by the partition plate 300 is a feeding channel; the front side of the feeding smoke box 260 is communicated with the feeding channel, and a feeding port is formed in the partition plate 300; the flue gas outlet is connected with the flue of the bag-type dust collector.
The burner 200 is arranged at the other end of the inner roller 20, and the inclination angle of the burner 200 is the same as that of the double-layer roller; the burner 200 is located at a lower end.
The combustion end of the burner 200 is disposed inside the inner drum 20, and the burner 200 body is mounted on the burner bracket 210; the burner support 210 is inclined at the same angle as the bottom frame 220; the axis of the combustion end of the burner 200 coincides with the axis of the double-layer cylinder.
The inner wall of the inner roller 20 is provided with a wrapper blade 270; the wrapper blades 270 are disposed in the combustion zone of the burner;
an inner cylinder guide plate 10 is arranged in the feeding end of the inner cylinder 20;
the inner wall of the inner roller 20 is provided with inner cylinder lifting blades 50;
the inner drum 20 is provided with inner drum discharge ports 280 communicated with the inside of the outer drum 70, the number of the inner drum discharge ports 280 is plural, and the positions of the inner drum discharge ports 280 correspond to the positions of the reclaimed material feeding rings 80.
The sealing assembly comprises 3 groups of first sealing assemblies and 2 groups of second sealing assemblies, and the first sealing assemblies and the second sealing assemblies have the same structure; the seal assembly is installed as follows:
the first sealing assembly arranged at the junction of the feeding smoke box 260 and the outer wall of the inner drum 20 comprises a soft rubber ring 100, a sealing pressing plate 110 and a sealing cone plate 120; the outer wall of the inner roller 20 is sleeved with a circular sealing cone plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing cone plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to the end plate of the feeding smoke box 260, and the end plate is circular and positioned on the end face of the feeding smoke box 260;
the first sealing assembly arranged at the joint of the discharging ring 140 and the outer wall of the inner drum 20 comprises a soft rubber ring 100, a sealing pressing plate 110 and a sealing cone plate 120; the outer wall of the inner roller 20 is sleeved with a circular sealing cone plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing cone plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to the end plate of the discharging ring 140, and the end plate is circular and positioned on the end surface of the discharging ring 140;
the first sealing assembly arranged at the joint of the regenerated material feeding ring 80 and the outer wall of the inner roller 20 comprises a soft rubber ring 100, a sealing pressing plate 110 and a sealing cone plate 120; the outer wall of the inner roller 20 is sleeved with a circular sealing cone plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing cone plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to the end plate of the regenerated material feeding ring 80, and the end plate is circular and positioned on the end surface of the regenerated material feeding ring 80;
the second sealing assembly arranged at the joint of the regenerated material feeding ring 80 and the outer wall of the outer drum 70 comprises a soft rubber ring 100, a sealing pressing plate 110 and a sealing cone plate 120; the outer wall of the outer roller 70 is sleeved with a circular sealing cone plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing cone plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to the end plate of the regenerated material feeding ring 80, and the end plate is circular and positioned on the end surface of the regenerated material feeding ring 80;
the second sealing assembly arranged at the junction of the discharging ring 140 and the outer wall of the outer drum 70 comprises a soft rubber ring 100, a sealing pressing plate 110 and a sealing cone plate 120; the outer wall of the outer roller 70 is sleeved with a circular sealing cone plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing cone plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to the end plate of the discharge ring 140, and the end plate is circular and positioned on the end face of the discharge ring 140.
The outer roller 70 is provided with a group of driving units which adopt friction transmission on the inner sides of the discharging ring 140 and the regenerated material feeding ring 80 respectively;
the driving unit includes a rolling ring 30, a butterfly plate 40, a rolling ring supporting device 180, and a power unit 190;
the rolling ring supporting device 180 comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the roller are respectively arranged on the bearing seat through bearings, and one end of the roller extends out of the bearing seat to be connected with the power unit;
the bearing seat is fixed on the underframe 22;
the rolling ring 30 is fixedly sleeved on the outer wall of the inner roller 20 or the outer roller 70 through the butterfly plate 40; the rolling ring 30 is in contact with the roller.
The power unit 190 is in the form of a hollow shaft speed reduction motor or a solid shaft speed reduction motor and a coupler;
the inner roller 20 adopts a driving unit driven by a chain wheel;
the inner drum driving unit includes a chain ring 60, a small sprocket 150, a chain 160, a driver 170, and a supporting unit;
the chain ring 60 is arranged on the outer wall of the inner roller 20, the small chain wheel 150 is arranged on the output shaft of the driver 170, the small chain wheel 150 and the chain ring 60 are driven by a chain 160, the chain driving device is a tensioning chain wheel, and the driver 170 is arranged on the underframe 220;
the driver 170 takes the form of a hollow shaft gear motor or a solid shaft gear motor and a coupling;
the supporting units are arranged at both ends of the inner roller 20 sleeved by the outer roller 70; the support unit includes a rolling ring 30, a butterfly plate 40, and a rolling ring support 180;
the rolling circle supporting device 180 comprises a roller, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the rolling shaft are respectively arranged on the bearing seat through bearings;
the bearing seat is fixed on the underframe 22;
the rolling ring 30 is fixedly sleeved on the outer wall of the inner roller 20 or the outer roller 70 through the butterfly plate 40; the rolling ring 30 is in contact with the roller.
The following is an embodiment of a plant-mix heat regenerator heating apparatus according to a specific example II of the present invention, as shown in FIG. 8:
the outer roller 70 and the inner roller 20 are driven as follows in this embodiment:
the outer roller 70 is provided with a group of driving units at the inner sides of the discharging ring 140 and the regenerated material feeding ring 80 respectively; the inner roller 20 is provided with a group of driving units at two ends of the outer roller 70; the driving units of the inner roller 20 and the outer roller 70 adopt friction transmission modes with the same structure;
the driving unit includes a rolling ring 30, a butterfly plate 40, a rolling ring supporting device 180, and a power unit 190;
the rolling ring supporting device 180 comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the roller are respectively arranged on the bearing seat through bearings, and one end of the roller extends out of the bearing seat to be connected with the power unit;
the bearing seat is fixed on the underframe;
the rolling ring 30 is fixedly sleeved on the outer wall of the inner roller 20 or the outer roller 70 through the butterfly plate 40; the rolling ring 30 is in contact with the roller;
the power unit 190 takes the form of a hollow shaft reduction motor or a solid shaft reduction motor and a coupling.
The rest of the structure of the device is the same as that of the first embodiment, so that the description is omitted.
The working flow of the plant-mixed hot reclaimed material heating device is as follows:
starting the plant-mixed hot regenerated material heating device; the burner 200 is started, the driving unit of the inner drum 20 is started and drives the inner drum 20 to rotate, and the driving unit of the outer drum 70 is started and drives the outer drum 70 to rotate;
feeding new aggregate into the inner drum 20 through the feed inlet of the feed smoke box 260;
the new aggregate is guided into the inner drum 20 through the inner drum guide plate 10, the inner drum lifting blades 50 lift and throw the material in the inner drum 20 in the circumferential clockwise direction to form a material curtain, and the movement direction of the new aggregate is opposite to the movement direction of the high-temperature flue gas, so that the new aggregate is subjected to heat convection;
the inner roller 20 and the horizontal surface form an included angle of 3-5 degrees, so that the new aggregate can move towards the direction of the inner roller discharging hole 280 by means of self gravity; after entering the combustion zone, the wrapping blades 270 wrap the new aggregate between the wrapping blades 270 and the inner roller 20, so as to avoid the contact between the new aggregate and flame; in the moving process, the new aggregate is dried and heated to 180-280 ℃; finally, new aggregate enters the outer roller 70 from the inner cylinder discharging port 280 of the inner roller 20; asphalt recycling material enters the outer roller 70 through the feed inlet of the recycling material feed ring 80;
the heated new aggregate and reclaimed materials are guided into the outer roller 70 through the outer roller guide plate 90, and the reclaimed materials are heated in a heat conduction manner of the new aggregate and a heat radiation manner of the inner roller 20 under the guidance of the outer roller guide blades 130, and meanwhile, the reclaimed materials and the new aggregate are fully mixed;
at this time, the wind speed in the outer drum 70 is very low, the generated asphalt smoke and asphalt dust are very small, and because of the pressure difference between the inner drum 20 and the outer drum 70, a small amount of generated asphalt smoke and asphalt dust are discharged from the inner drum discharge port 280 and enter the inner drum 20 again, most of the asphalt smoke and asphalt dust are burnt when passing through the combustion area of the inner drum 20, and the residual very small amount of asphalt smoke and asphalt dust are discharged from the feeding smoke box 260 and finally filtered by the bag-type dust collector, and then the tail gas is discharged;
the outer cylinder guide blades 130 are arranged in a spiral line in the length direction of the roller, the outer cylinder guide blades 130 lift the mixture for a certain height and then drop, the mixture moves towards the discharge end along the spiral line direction in the dropping process, meanwhile, the new aggregate and the reclaimed material are mixed, and finally, the mixture of the new aggregate and the reclaimed material which reach the required temperature is guided out from the discharge port of the discharge ring 140 and enters the next process.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The plant-mixed hot regenerated material heating device comprises a double-layer roller, a sealing assembly, a combustor (200), a combustor bracket (210), a driving unit and a bottom frame (220), wherein the double-layer roller comprises an inner roller (20) and an outer roller (70), and the outer roller (70) is sleeved on the inner roller (20); the method is characterized in that: the device also comprises a discharging ring (140), a regenerated material feeding ring (80) and a feeding smoke box (260);
the double-layer roller is obliquely arranged downwards along the travelling direction of the new aggregate;
the inner roller (20) and the outer roller (70) are respectively provided with a driving unit, and the driving units are fixed on the underframe (220);
the regenerated material feeding ring (80) and the discharging ring (140) are respectively sleeved on the outer walls of the two ends of the outer roller (70) and are communicated with the inside of the outer roller (70), and meanwhile, the regenerated material feeding ring (80) and the discharging ring (140) are fixed on the underframe (220);
a feed inlet is arranged on the regenerated material feed ring (80); a discharge hole is arranged on the discharge ring (140);
the inner side wall of the outer roller (70) is provided with an outer barrel guide blade (130);
the feeding smoke box (260) is arranged at one end of the inner roller (20); the feeding smoke box (260) is fixed with the underframe (220); an inclined partition board (300) is arranged in the feeding smoke box (260); the partition plate (300) extends from the top of the feeding smoke box (260) to the bottom of the inner roller (20); the part of the upper end of the feeding smoke box (260) separated by the baffle plate (300) is a smoke outlet, and the part of the lower end of the feeding smoke box (260) separated by the baffle plate (300) is a feeding channel; the front side of the feeding smoke box (260) is communicated with the feeding channel, and a feeding port is formed in the partition plate (300);
the burner (200) is arranged at the other end of the inner roller (20), the combustion end of the burner (200) is arranged inside the inner roller (20), and the burner (200) body is arranged on the burner bracket (210);
the inner wall of the inner roller (20) is provided with a material wrapping blade (270); the packing blades (270) are arranged in the combustion area of the combustor (200);
the inner wall of the inner roller (20) is also provided with inner barrel lifting blades (50);
the inner roller (20) is provided with an inner cylinder discharge port (280) communicated with the inside of the outer roller (70), and the position of the inner cylinder discharge port (280) corresponds to the regenerated material feeding ring (80);
the sealing assembly comprises 3 groups of first sealing assemblies and 2 groups of second sealing assemblies, and the first sealing assemblies and the second sealing assemblies have the same structure;
the 3 groups of first sealing components are respectively arranged at the position where the feeding smoke box (260) is connected with the outer wall of the inner roller (20), the position where the discharging ring (140) is connected with the outer wall of the inner roller (20) and the position where the regenerated material feeding ring (80) is connected with the outer wall of the inner roller (20);
the 2 groups of second sealing components are respectively arranged at the connection position of the discharging ring (140) and the outer wall of the outer roller (70) and at the connection position of the regenerated material feeding ring (80) and the outer wall of the outer roller (70).
2. The plant-mix thermal regeneration material heating device according to claim 1, wherein:
the first sealing assembly comprises a soft rubber ring (100), a sealing pressing plate (110) and a sealing cone plate (120);
the sealing cone plate (120) is sleeved on the outer wall of the inner roller (20), and one side edge of the soft rubber ring (100) is connected with the sealing cone plate (120) through the sealing pressing plate (110); the other side edge is tightly attached to the end plate of the regenerated material feeding ring (80) or the end plate of the discharging ring (140) or the end plate of the feeding smoke box (260).
3. A plant mix thermal regrind heating apparatus according to claim 1 or 2, characterized in that: the inner roller (20) and the outer roller (70) adopt friction transmission driving units;
the friction transmission driving unit comprises a rolling ring (30), a butterfly plate (40), a rolling ring supporting device (180) and a power unit (190);
the rolling ring supporting device (180) comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the roller are respectively arranged on the bearing seat through bearings, and one end of the roller extends out of the bearing seat to be connected with the power unit;
the bearing seat is fixed on the underframe (220);
the rolling ring (30) is fixedly sleeved on the outer wall of the inner roller (20) or the outer roller (70) through a butterfly plate (40); the rolling ring (30) is in contact with the roller.
4. A plant mix thermal regrind heating apparatus according to claim 1 or 2, characterized in that: the inner roller (20) and the outer roller (70) adopt driving units driven by chain wheels;
the driving unit of the sprocket transmission comprises a chain ring (60), a small sprocket (150), a chain (160), a driver (170) and a supporting unit;
the chain ring (60) is arranged on the outer wall of the inner roller (20) or the outer roller (70), the small chain wheel (150) is arranged on the output shaft of the driver (170), the small chain wheel (150) and the chain ring (60) are driven by a chain (160), and the driver (170) is arranged on the underframe (220);
the inner roller (20) and the outer roller (70) are both provided with supporting units; the support unit comprises a rolling ring (30), a butterfly plate (40) and a rolling ring support device (180);
the rolling ring supporting device (180) comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the roller;
two ends of the rolling shaft are respectively arranged on the bearing seat through bearings;
the bearing seat is fixed on the underframe (220);
the rolling ring (30) is fixedly sleeved on the outer wall of the inner roller (20) or the outer roller (70) through a butterfly plate (40); the rolling ring (30) is in contact with the roller.
5. A plant mix thermal regrind heating apparatus according to claim 3, wherein: the power unit (190) takes the form of a hollow shaft gear motor or a solid shaft gear motor and a coupling.
6. A plant mix heat regeneration material heating apparatus according to claim 4, wherein: two groups of supporting units are respectively arranged at two ends of the inner roller (20) and the outer roller (70), and the driver (170) adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupler.
7. The plant-mix thermal regeneration material heating device according to claim 1, wherein: the underframe (220) is arranged obliquely downwards along the travelling direction of the new aggregate.
8. A plant mix heat regeneration material heating apparatus according to claim 7, wherein: the axis of the combustion end of the burner (200) coincides with the axis of the double-layer roller.
9. The plant-mix thermal regeneration material heating device according to claim 1, wherein: the outer cylinder guide blades (130) are in spiral line arrangement.
10. The plant-mix thermal regeneration material heating device according to claim 1, wherein: an outer cylinder guide plate (90) is arranged on the inner wall of the outer cylinder (70), and the position of the outer cylinder guide plate (90) corresponds to the ring surface of the regenerated material feeding ring (80); an inner barrel guide plate (10) is arranged in the feeding end of the inner barrel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910270100.9A CN109853332B (en) | 2019-04-04 | 2019-04-04 | Plant-mixed heat regenerated material heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910270100.9A CN109853332B (en) | 2019-04-04 | 2019-04-04 | Plant-mixed heat regenerated material heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109853332A CN109853332A (en) | 2019-06-07 |
| CN109853332B true CN109853332B (en) | 2023-09-15 |
Family
ID=66903377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910270100.9A Active CN109853332B (en) | 2019-04-04 | 2019-04-04 | Plant-mixed heat regenerated material heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853332B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373971B (en) * | 2019-08-13 | 2024-03-15 | 陕西达刚筑路环保设备有限公司 | Heating device capable of adding asphalt reclaimed materials |
| CN110616623A (en) * | 2019-09-06 | 2019-12-27 | 福建南方路面机械有限公司 | Anti-sticking material regeneration drying roller and anti-sticking material process |
| CN111058355A (en) * | 2019-12-26 | 2020-04-24 | 无锡锡通工程机械有限公司 | Low-temperature catalytic gas medium-long wave drying drum |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575140Y (en) * | 2002-09-19 | 2003-09-24 | 杨林江 | Multifunction machine for roughening & smooth finishing to cement concrete paving courses |
| CN1648345A (en) * | 2005-02-04 | 2005-08-03 | 杨林江 | Regenerating stirrer for pitch concrete |
| CN2876157Y (en) * | 2005-08-17 | 2007-03-07 | 南阳市陆德筑路机械制造有限公司 | Continuous type drying drum |
| CN103088743A (en) * | 2013-02-01 | 2013-05-08 | 福建南方路面机械有限公司 | Continuous asphalt mixture regeneration stirring apparatus |
| CN103321126A (en) * | 2013-07-16 | 2013-09-25 | 郴州市三联路面机械有限责任公司 | Roller capable of simultaneously drying and heating reclaimed material and new aggregate |
| CN105484135A (en) * | 2015-12-16 | 2016-04-13 | 郝志付 | Environmentally-friendly asphalt spirally-mixing and regenerating equipment |
| CN210104492U (en) * | 2019-04-04 | 2020-02-21 | 陕西达刚筑路环保设备有限公司 | Hot reclaimed material heating device of plantmix |
-
2019
- 2019-04-04 CN CN201910270100.9A patent/CN109853332B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575140Y (en) * | 2002-09-19 | 2003-09-24 | 杨林江 | Multifunction machine for roughening & smooth finishing to cement concrete paving courses |
| CN1648345A (en) * | 2005-02-04 | 2005-08-03 | 杨林江 | Regenerating stirrer for pitch concrete |
| CN2876157Y (en) * | 2005-08-17 | 2007-03-07 | 南阳市陆德筑路机械制造有限公司 | Continuous type drying drum |
| CN103088743A (en) * | 2013-02-01 | 2013-05-08 | 福建南方路面机械有限公司 | Continuous asphalt mixture regeneration stirring apparatus |
| CN103321126A (en) * | 2013-07-16 | 2013-09-25 | 郴州市三联路面机械有限责任公司 | Roller capable of simultaneously drying and heating reclaimed material and new aggregate |
| CN105484135A (en) * | 2015-12-16 | 2016-04-13 | 郝志付 | Environmentally-friendly asphalt spirally-mixing and regenerating equipment |
| CN210104492U (en) * | 2019-04-04 | 2020-02-21 | 陕西达刚筑路环保设备有限公司 | Hot reclaimed material heating device of plantmix |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109853332A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109853332B (en) | Plant-mixed heat regenerated material heating device | |
| CN107127205B (en) | Household garbage low-temperature pyrolysis treatment system | |
| CN103465365B (en) | Automation brick production line | |
| CN103088743B (en) | Continous way reclaimed asphalt mixture mixing plant | |
| CN203438377U (en) | Automatic brickmaking production line | |
| US7044630B1 (en) | Counter-flow asphalt plant method | |
| CN204777273U (en) | Dry dust removal conveyer | |
| CN110373971B (en) | Heating device capable of adding asphalt reclaimed materials | |
| CN114749599B (en) | Micro-wet treatment process for foundry waste sand | |
| CN103776244B (en) | Roller drying machine | |
| CN210104492U (en) | Hot reclaimed material heating device of plantmix | |
| CN110846063B (en) | High-efficient processing system of junked tire micelle | |
| CN2391152Y (en) | Energy-saving panel turnover type scraper fluidized bed dryer | |
| CN210737289U (en) | Heating device capable of adding asphalt reclaimed materials | |
| CN209891000U (en) | Old asphalt mixture regenerative heating device | |
| CN104131506B (en) | A kind of hot recycling equipment | |
| CN110181704B (en) | Production line for wet refining of powdered rubber and preparation method thereof | |
| CN105674704B (en) | The close drying system and close drying method of a kind of flammable and explosive substance | |
| CN205174379U (en) | Drying combustion system | |
| RU171644U1 (en) | DRUM FURNACE FOR DRYING SAND | |
| CN211772579U (en) | Double-layer split-flow type drying drum | |
| CN110952418A (en) | Shunting type integrated drying roller for recycled asphalt mixture | |
| CN206046222U (en) | A kind of organic-silicon heat-resisting paint manufacturing machine | |
| CN112299414A (en) | Active carbon apparatus for producing and carbomorphism activation integrative stove thereof | |
| CN218306745U (en) | Environment-friendly material frying machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |