CN210104492U - Hot reclaimed material heating device of plantmix - Google Patents
Hot reclaimed material heating device of plantmix Download PDFInfo
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- CN210104492U CN210104492U CN201920452349.7U CN201920452349U CN210104492U CN 210104492 U CN210104492 U CN 210104492U CN 201920452349 U CN201920452349 U CN 201920452349U CN 210104492 U CN210104492 U CN 210104492U
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Abstract
The utility model relates to a plant-mixed hot reclaimed material heating device, which is used for solving the problems that the asphalt aging degree is large, and the generated asphalt smoke and asphalt dust can cause cloth bag blockage and possible flash explosion and the like in the working process of conventional equipment in the background technology; the utility model 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 ring surface of the inner roller is provided with a discharge hole, the inner roller is provided with an inner-barrel material lifting blade, and the outer roller is provided with a material guide blade; a reclaimed material feeding ring and a reclaimed material discharging ring are respectively sleeved at two ends of the outer roller, the reclaimed material feeding ring and the reclaimed material discharging ring are both fixed on the bottom frame, a feeding hole is formed in the reclaimed material feeding ring, and a discharging hole is formed in the discharging ring; the feeding smoke box and the burner are arranged at two ends of the inner roller; the connection parts of the feeding smoke box, the discharging ring, the regenerated material feeding ring, the inner roller and the outer roller are provided with sealing components.
Description
Technical Field
The utility model belongs to the equipment that the pitch stirring was used, concretely relates to hot reclaimed materials heating device of plantmix.
Background
The existing asphalt reclaimed material heating equipment generally has the following defects:
1. the conventional single-roller plant-mixing heat regeneration equipment adopts a combustor with high-temperature smoke reaching about 1000-;
2. conventional single cylinder hot plant recycling equipment is at the in-process of heating, and pitch can glue on the section of thick bamboo wall to form the tie coat, the cylinder is at the continuous heating in-process, and bold adhesion material can fall down, thereby influence the gradation of reclaimed materials, and glue pitch on the section of thick bamboo wall can increase the equipment maintenance cost.
In order to solve the above problems, patent publication No. CN 103088743a discloses a continuous mixing device for recycled asphalt mixture, which has the following working procedures:
as shown in fig. 1, the raw aggregate enters the inner drum 31 through the feeding chute 6, enters the heat exchange area of the inner drum 31 under the action of the rotation of the inner drum 31 and the spiral feeding blade, is lifted and thrown down under the action of the material containing blade and the material lifting blade, performs sufficient heat exchange with high-temperature flue gas generated by the burner 4, and moves to the blanking hole 311 in the drum; meanwhile, the recycled reclaimed materials are crushed and then are conveyed into the inner roller 31 through the belt conveying device 7, the reclaimed materials fall into the material cavity 36 from the blanking hole 311 under the action of the rotation of the inner roller 31 and the action of the spiral discharging blade, and the heated primary aggregate and the high-temperature flue gas also 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 primary aggregate, and a part of the reclaimed materials exchange 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 mixture stirring blade and the second mixture stirring blade, the premixed material flows out of a recycled material discharge port 351 on a discharge end plate 35 through a spiral discharge blade and enters the continuous stirring host 5, a foamed asphalt feed port 51, a powder feed port 52 and a premixed material feed port 53 on a cover of the stirring host are opened and closed according to a formula, and the premixed material is fully mixed with asphalt and powder under the action of the continuous stirring host 5 and flows out of a recycled asphalt mixture finished product material discharge port 54.
However, the continuous reclaimed asphalt mixture stirring device still has the following problems when the reclaimed asphalt is dried:
1. the equipment adopts concurrent heating, the material moving direction is the same as the high-temperature flue gas moving direction, the flue gas outlet is positioned at the discharge end, the material temperature is high, and the tail gas temperature is about 180 DEG and 200 DEG; the downstream heating tail gas has higher temperature, so that the problem of low energy utilization rate exists, and the service life of the cloth bag is influenced;
2. high-temperature flue gas in the equipment passes through the outer roller to reach a flue gas outlet, and the asphalt reclaimed material is heated by convection of the high-temperature flue gas, so that the temperature of the high-temperature flue gas is high, asphalt aging to a greater extent still exists, more asphalt flue gas is generated, and the pavement performance of a reclaimed asphalt mixture is influenced;
3. the equipment adopts a convection heating mode to heat the asphalt reclaimed material, and uses flowing high-temperature flue gas to heat the reclaimed material under the air induction action of a bag-type dust collector connected with a flue gas outlet, so that the air speed in the roller is very high, most of asphalt flue gas and asphalt dust generated by heating can be sucked into the bag-type dust collector, the bag can be easily blocked, and when the concentrations of the asphalt flue gas and the asphalt dust in the roller reach a certain degree, certain potential safety hazard can exist; in addition, the discharged gas still can not meet the environment protection requirement after being dedusted.
SUMMERY OF THE UTILITY MODEL
In order to solve the pitch degree of aging that the equipment that proposes in the above-mentioned background art appears in the course of the work big, the pitch flue gas and the pitch dust of production can cause the sack to block up to and pitch flue gas and pitch dust are too high because of concentration, may have certain potential safety hazard scheduling problem, the utility model provides a hot reworked material heating device of plantmix.
In order to achieve the above object, the technical solution of the present invention is:
a plant-mixed hot recycled material heating device comprises a double-layer roller, a sealing assembly, a burner bracket, a driving unit and a driving unit, wherein the double-layer roller comprises an inner roller and an outer roller, and the outer roller is sleeved on the inner roller; it is characterized in that: the device also comprises a discharging ring, a regenerated material feeding ring and a discharging ring;
the double-layer roller is arranged along the advancing direction of the fresh aggregate in a downward inclination mode;
the inner roller and the outer roller are respectively provided with a driving unit, and the driving units are fixed on the underframe;
the reclaimed material feeding ring and the discharging ring are respectively sleeved on the outer walls at two ends of the outer roller and are communicated with the inner part of the outer roller, and the reclaimed material feeding ring and the discharging ring are fixed on the bottom frame;
a feeding hole is formed in the reclaimed material feeding ring; a discharge hole is arranged on the discharge ring;
the inner side wall of the outer roller is provided with outer cylinder material guide blades;
the feeding smoke box is arranged at one end of the inner roller; the feeding smoke box is fixed with the bottom frame; an inclined clapboard 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 partition plate, is a smoke outlet, and the part of the lower end of the feeding smoke box, which is separated by the partition plate, is a feeding channel; the front side of the feeding smoke box is communicated with the feeding channel, and a feeding hole is formed in the partition plate;
the burner is arranged at the other end of the inner roller, the burning end of the burner is arranged in the inner roller, and the burner body is arranged on the burner bracket;
the inner wall of the inner roller is provided with a material wrapping blade; the material wrapping blades are arranged in a combustion area of the combustor;
the inner wall of the inner roller is also provided with an inner roller material lifting blade;
the inner drum is provided with an inner drum discharge port communicated with the interior of the outer drum, and the position of the inner drum discharge port corresponds to the reclaimed material feeding ring;
the sealing assemblies comprise 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 assemblies are respectively arranged at the position where the feeding smoke box is connected with the outer wall of the inner roller, the position where the discharging ring is connected with the outer wall of the inner roller and the position where the reclaimed material feeding ring is connected with the outer wall of the inner roller;
and the 2 groups of second sealing assemblies are respectively arranged at the position where the discharging ring is connected with the outer wall of the outer roller and the position where the reclaimed material feeding ring is connected with the outer wall of the outer roller.
Preferably, the first sealing assembly comprises a soft rubber ring, a sealing pressure plate and a sealing conical plate;
the sealing conical 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 conical plate through the sealing pressing plate; the other side edge is tightly attached to the end plate of the reclaimed material feeding ring or the end plate of the discharging ring or the end plate of the feeding smoke box.
Preferably, the inner drum and the outer drum are independently driven in two modes;
first, a friction-driven drive unit;
the friction transmission driving unit comprises a rolling ring, a butterfly-shaped plate, a rolling ring supporting device and a power unit;
the rolling ring supporting device comprises a rolling shaft, a bearing seat and a roller;
the roller is fixedly sleeved on the rolling shaft;
two ends of the rolling shaft are respectively arranged on bearing seats through bearings, and one end of the rolling shaft extends out of the bearing seats to be connected with the power unit;
the bearing block 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, sprocket drive unit:
the chain wheel transmission driving unit 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 an output shaft of the driver, the small chain wheel and the chain ring are driven by a chain, and the driver is arranged on the bottom frame;
the inner roller and the outer roller are both provided with a supporting unit; the supporting unit comprises a rolling ring, a butterfly-shaped 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 seats through bearings;
the bearing block 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 is in the form of a hollow shaft speed reduction motor or a solid shaft speed reduction motor and a coupling.
Preferably, in order to enable the inner roller and the outer roller to rotate more stably, two groups of supporting units are respectively arranged at two ends of the inner roller and two ends of the outer roller; the driver adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupling.
Preferably, in order to allow the double drum to be inclined with a simpler structure, the under frame is inclined downward in the traveling direction of the fresh aggregate.
Preferably, in order to make the heat distribution more uniform when the inner drum is heated, the axis of the combustion end of the burner coincides with the axis of the double-layer drum.
Preferably, in order to enable the mixture in the outer roller to better move towards the discharge end, the guide blades of the outer roller are arranged in a spiral line.
Preferably, in order to enable materials to enter the inner roller and the outer roller more conveniently, an outer roller material guide plate is arranged on the inner wall of the outer roller, and the position of the outer roller material guide plate corresponds to the ring surface of the reclaimed material feeding ring; an inner cylinder material guide plate is arranged in the feeding end of the inner cylinder.
The utility model has the advantages that:
1. this device will dry the new aggregate that the heating after-temperature is 180 + 280 ℃ as heating medium, more current high temperature flue gas heating methods, the utility model discloses the high temperature flue gas is not through outer cylinder, and reclaimed material and high temperature flue gas contactless make heating temperature reduce a lot, and then reduced the ageing degree of pitch reclaimed material and reduced the flue gas of pitch for the road performance of reclaimed asphalt mixture has obtained great promotion.
2. The novel aggregate heating mode of the utility model is high-temperature flue gas countercurrent heating, the moving direction of the novel aggregate is opposite to that of the high-temperature flue gas, the flue gas outlet is positioned on the feeding smoke box, the temperature of the novel aggregate at the feeding end is low, and the temperature of the tail gas at the flue gas outlet is reduced to about 100 ℃ after the heat of the flue gas is absorbed by the novel aggregate; compared with concurrent heating, the countercurrent heating has the advantages of low tail gas temperature, energy conservation and high heating efficiency; under the induced air action of a bag-type dust collector connected with a flue gas outlet, 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 a discharge port of the inner roller and enter the inner roller again, and most of the generated asphalt flue gas and asphalt dust are combusted when passing through a combustion zone of the inner roller; the surplus minimum tail gas is inhaled the sack cleaner behind the combustion processing, can not cause the sack to block up, has avoided pitch flue gas and pitch dust concentration to take place the potential safety hazard of flashover when reaching the certain degree, because of the tail gas temperature is low, still is favorable to the life-span of extension sack, can play environmental protection and energy saving's effect simultaneously.
3. This device is through the hot-radiating hybrid heating pitch reclaimed material of new aggregate and pitch reclaimed material heat-conduction and interior cylinder outer wall, and the pitch in the pitch reclaimed material after the heating can glue on new aggregate, has avoided pitch reclaimed material adhesion to section of thick bamboo wall, and then has reduced the maintenance cost, has also reached environmental protection and energy saving's effect simultaneously.
4. The rotating speed of the outer roller of the device is not influenced by the rotating speed of the inner roller, and the rotating speed of the inner roller can not influence the rotating speed of the mixture in the outer roller by adjusting, namely, the staying time of the mixture in the outer roller can not be influenced, so that the discharging temperature of the mixture can not be influenced.
5. According to the device, the outer cylinder guide blades are arranged on the inner wall of the outer roller, new aggregates and reclaimed materials enter the outer roller, the outer cylinder guide blades drive the new aggregates and the reclaimed materials to move towards the direction of a discharge ring in the lifting and falling process along with the rotation of the outer roller, the mixture is positioned on the inner wall of the outer roller at the moment, the abrasion on the inner wall of the outer roller is small, and the mixture is hardly contacted with the outer wall of the inner roller; the inner roller rotates, the outer roller is fixed, the outer wall of the inner roller is provided with a regenerative heating device for stirring slurry, and the mixture frequently rubs with the inner wall of the outer roller in the process of stirring the slurry, so that the inner wall of the outer roller is greatly abraded, and the equipment maintenance cost is increased.
Drawings
FIG. 1 is a schematic structural diagram of a continuous reclaimed asphalt mixing plant 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 the second embodiment of the present invention.
The reference numbers 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 hole, 332-burner interface, 34-regenerated material feeding end plate, 341-regenerated material feeding hole, 35-discharging end plate, 351-regenerated material discharging hole, 352-smoke outlet, 36-material cavity, 4-burner, 5-continuous stirring host, 51-foamed asphalt feeding hole, 52-powder feeding hole, 53-premixed material feeding hole, 54-mixed finished material discharging hole, 6-feeding chute and 7-belt conveying device;
10-inner cylinder guide plate, 20-inner cylinder, 30-rolling ring, 40-butterfly plate, 50-inner cylinder lifting blade, 60-chain ring, 70-outer cylinder, 80-reclaimed material feeding ring, 90-outer cylinder guide plate, 100-soft rubber ring, 110-sealing press plate, 120-sealing cone plate, 130-outer cylinder guide blade, 140-discharging ring, 150-small chain wheel, 160-chain, 170-driver, 180-rolling ring supporting device, 190-power unit, 200-combustor, 210-combustor bracket, 220-chassis, 230-first leg, 240-second leg, 250-third leg, 260-feeding smoke box, 270-wrapping blade, 280-inner cylinder discharging port and 300-clapboard.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in fig. 2-7, the hot plantmix regrind heating apparatus includes a double drum, a sealing assembly, a burner 200, a burner support 210, a drive unit and base frame 220, an outfeed ring 140, a regrind infeed ring 80, and an infeed smoke box 260.
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 inner drum 20 and the outer drum 70 are respectively provided with a driving unit, and the driving units are fixed on the bottom frame 220;
the first support leg 230, the second support leg 240 and the third support leg 250 of the bottom frame 220 are designed to have different lengths, so that the supporting surface of the bottom frame 220 forms an included angle of 3-5 degrees with the horizontal plane; the axis of the double-layer roller is 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 downwards along the advancing direction of the new aggregates.
The reclaimed 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 the reclaimed material feeding ring 80 and the discharging ring 140 are fixed on the bottom frame 220.
A feeding hole is formed in the reclaimed material feeding ring 80; the discharging ring 140 is provided with a discharging hole.
An outer cylinder material guiding blade 130 is arranged on the inner side wall of the outer cylinder 70, and the outer cylinder material guiding blade 130 is arranged in a spiral line; an outer cylinder material guide plate 90 is arranged on the inner wall of the outer roller 70, and the position of the outer cylinder material guide plate 90 corresponds to the annular surface of the reclaimed material feeding ring 80.
The feed smoke box 260 is disposed at one end of the inner drum 20; the feed smoke box 260 is fixed to the chassis 220;
a tilted baffle 300 is arranged in the feeding smoke box 260; the partition 300 extends from the top of the feed hopper 260 to the bottom of the inner drum 20; the part of the upper end of the feeding smoke box 260, which is separated by the partition plate 300, is a smoke outlet, and the part of the lower end of the feeding smoke box 260, which is separated by the partition plate 300, is a feeding channel; the front side of the feeding smoke box 260 is communicated with a feeding channel, and a feeding hole 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 end where the burner 200 is located is lower.
The combustion end of the burner 200 is disposed inside the inner drum 20, and the main body of the burner 200 is mounted on the burner supporter 210; the burner brackets 210 are inclined at the same angle as the base frame 220; the axis of the combustion end of the burner 20 coincides with the axis of the double-layered drum.
The inner wall of the inner roller 20 is provided with a wrapping blade 270; the wrapper blades 270 are disposed in the combustion zone of the combustor;
an inner cylinder material guide plate 10 is arranged in the feeding end of the inner roller 20;
the inner wall of the inner roller 20 is provided with an inner roller lifting blade 50;
the inner drum 20 is provided with a plurality of inner drum discharge ports 280 communicated with the inside of the outer drum 70, and the positions of the inner drum discharge ports 280 correspond to the reclaimed material feeding ring 80.
The sealing assemblies comprise 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 mounted as follows:
the first sealing component arranged at the joint of the feeding smoke box 260 and the outer wall of the inner drum 20 comprises a soft rubber ring 100, a sealing pressure plate 110 and a sealing conical plate 120; the outer wall of the inner drum 20 is sleeved with a circular sealing conical plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing conical plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to an end plate of the feeding smoke box 260, and the end plate is annular and is positioned on the end surface of the feeding smoke box 260;
the first sealing component arranged at the joint of the discharging ring 140 and the outer wall of the inner roller 20 comprises a soft rubber ring 100, a sealing pressure plate 110 and a sealing conical plate 120; the outer wall of the inner drum 20 is sleeved with a circular sealing conical plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing conical plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to an end plate of the discharging ring 140, and the end plate is circular and is positioned on the end surface of the discharging ring 140;
the first sealing component arranged at the joint of the reclaimed material feeding ring 80 and the outer wall of the inner roller 20 comprises a soft rubber ring 100, a sealing pressure plate 110 and a sealing conical plate 120; the outer wall of the inner drum 20 is sleeved with a circular sealing conical plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing conical plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to an end plate of the reclaimed material feeding ring 80, and the end plate is circular and is positioned on the end face of the reclaimed material feeding ring 80;
the second sealing component arranged at the joint of the reclaimed material feeding ring 80 and the outer wall of the outer roller 70 comprises a soft rubber ring 100, a sealing pressure plate 110 and a sealing conical plate 120; the outer wall of the outer roller 70 is sleeved with a circular sealing conical plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing conical plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to an end plate of the reclaimed material feeding ring 80, and the end plate is circular and is positioned on the end face of the reclaimed material feeding ring 80;
the second sealing component arranged at the joint of the discharging ring 140 and the outer wall of the outer drum 70 comprises a soft rubber ring 100, a sealing pressure plate 110 and a sealing conical plate 120; the outer wall of the outer roller 70 is sleeved with a circular sealing conical plate 120, and one side edge of the soft rubber ring 100 is connected with the sealing conical plate 120 through a sealing pressing plate 110; the other side edge is tightly attached to an end plate of the discharging ring 140, and the end plate is circular and is positioned on the end surface of the discharging ring 140.
The outer drum 70 is provided with a group of driving units adopting friction transmission respectively on the inner sides of the discharging ring 140 and the feeding ring 120;
the 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 rolling shaft;
two ends of the rolling shaft are respectively arranged on bearing seats through bearings, and one end of the rolling shaft extends out of the bearing seats to be connected with the power unit;
the bearing block 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 a butterfly plate 40; the rolling rings 30 are in contact with the rollers.
The power unit 190 adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupling;
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 an output shaft of the driver 170, the small chain wheel 150 and the chain ring 60 are driven by the chain 160, the chain transmission device is a tension chain wheel, and the driver 170 is arranged on the bottom frame 220;
the driver 170 takes the form of a hollow shaft gear motor or a solid shaft gear motor and a coupling;
both ends of the inner drum 20 sleeved by the outer drum 70 are provided with supporting units; the supporting unit comprises a rolling ring 30, a butterfly plate 40 and a rolling ring supporting 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 seats through bearings;
the bearing block 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 a butterfly plate 40; the rolling rings 30 are in contact with the rollers.
The following is an embodiment of a second specific example of the plant-mixed hot recycled material heating device of the present invention, as shown in fig. 8:
the driving method of the outer roller 70 and the inner roller 20 in this embodiment is as follows:
the outer drum 70 is provided with a group of driving units respectively arranged at the inner sides of the discharging ring 140 and the fixing ring 120; the inner drum 20 is provided with a group of driving units at both ends of the outer drum 70; the driving units of the inner roller 20 and the outer roller 70 adopt the same structure of friction transmission mode;
the 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 rolling shaft;
two ends of the rolling shaft are respectively arranged on bearing seats through bearings, and one end of the rolling shaft extends out of the bearing seats to be connected with the power unit;
the bearing block 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 a 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 gear motor or a solid shaft gear motor and a coupling.
The rest of the structure of the device is the same as that of the first embodiment, and therefore, the description is omitted.
The working process of the plant-mixed hot recycled material heating device is as follows:
starting the plant-mixed hot recycled material heating device; the burner 20 is started, the driving unit of the inner roller 20 is started and drives the inner roller 20 to rotate, and the driving unit of the outer roller 70 is started and drives the outer roller 70 to rotate;
feeding the 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 material guide plate 10, the inner drum material lifting blades 50 lift and throw the material in the clockwise direction of the circumference into the inner drum 20 to form a material curtain, the moving direction of the new aggregate is opposite to the moving direction of high-temperature smoke, and heat convection heat transfer is carried out on the new aggregate;
the inner roller 20 and the horizontal plane form an included angle of 3-5 degrees, so that the new aggregate can move towards the inner roller discharge hole 280 by means of the self gravity; after entering the combustion zone, the wrapping blade 270 wraps the new aggregates between the wrapping blade 270 and the inner drum 20, so that the new aggregates are prevented from contacting with the flame; in the moving process, the new aggregate is dried and heated to 180-280 ℃; finally, the new aggregate enters the outer roller 70 from the inner roller discharge port 280 of the inner roller 20; the asphalt reclaimed material enters the outer roller 70 through the feed inlet of the reclaimed material feed ring 80;
the heated new aggregate and the reclaimed material are guided to the interior of the outer roller 70 through the outer barrel material guide plate 90, and under the guidance of the outer barrel material guide blades 130, the reclaimed material is heated through the heat conduction of the new aggregate and the heat radiation mode of the inner roller 20, and meanwhile, the reclaimed material and the new aggregate are fully mixed;
at this time, the wind speed in the outer roller 70 is very low, the generated asphalt smoke and asphalt dust are very little, and because of the pressure difference between the inner roller 20 and the outer roller 70, the generated small amount of asphalt smoke and asphalt dust are discharged from the inner cylinder discharge port 280 and enter the inner roller 20 again, when passing through the combustion zone of the inner roller 20, most of the asphalt smoke and asphalt dust are subjected to combustion treatment, the remaining very little asphalt smoke and asphalt dust are discharged through the feeding smoke box 260, and finally, the tail gas is discharged after being filtered by the bag-type dust collector;
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A plant-mixed hot recycled material heating device comprises a double-layer roller, a sealing assembly, a burner (200), a burner bracket (210), a driving unit and an underframe (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: also comprises a discharging ring (140), a regenerated material feeding ring (80) and a feeding smoke box (260);
the double-layer roller is arranged along the advancing direction of the fresh aggregate in a downward inclination mode;
the inner roller (20) and the outer roller (70) are respectively provided with a driving unit, and the driving units are fixed on the bottom frame (220);
the reclaimed 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 interior of the outer roller (70), and the reclaimed material feeding ring (80) and the discharging ring (140) are fixed on the bottom frame (220);
a feeding hole is formed in the reclaimed material feeding ring (80); a discharge hole is arranged on the discharge ring (140);
an outer cylinder material guide blade (130) is arranged on the inner side wall of the outer roller (70);
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); a baffle plate (300) is obliquely arranged in the feeding smoke box (260); the baffle (300) extends from the top of the feeding 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 hole is formed in the partition plate (300);
the burner (200) is arranged at the other end of the inner roller (20), the burning end of the burner (200) is arranged in the inner roller (20), and the main body of the burner (200) is arranged on the burner bracket (210);
the inner wall of the inner roller (20) is provided with a wrapping blade (270); the wrapper blades (270) are arranged in a combustion area of the combustor (200);
the inner wall of the inner roller (20) is also provided with an inner roller lifting blade (50);
the inner drum (20) is provided with an inner drum discharge hole (280) communicated with the interior of the outer drum (70), and the position of the inner drum discharge hole (280) corresponds to the reclaimed material feeding ring (80);
the sealing assemblies comprise 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 assemblies are respectively arranged at the position where the feeding smoke box (260) is connected with the outer wall of the inner drum (20), the position where the discharging ring (140) is connected with the outer wall of the inner drum (20) and the position where the regenerated material feeding ring (80) is connected with the outer wall of the inner drum (20);
the 2 groups of second sealing assemblies are respectively arranged at the position where the discharging ring (140) is connected with the outer wall of the outer drum (70) and the position where the reclaimed material feeding ring (80) is connected with the outer wall of the outer drum (70).
2. The plant-mixed hot recycled material heating device of claim 1, wherein:
the first sealing component comprises a soft rubber ring (100), a sealing pressure plate (110) and a sealing conical plate (120);
the sealing conical plate (120) is sleeved on the outer wall of the inner roller (20), and the edge of one side of the soft rubber ring (100) is connected with the sealing conical plate (120) through the sealing pressing plate (110); the other side edge is tightly attached with the end plate of the reclaimed 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-mixed hot recyclate heating apparatus as claimed in claim 1 or 2, wherein: the inner roller (20) and the outer roller (70) adopt a friction transmission driving unit;
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 rolling shaft;
two ends of the rolling shaft are respectively arranged on bearing seats through bearings, and one end of the rolling shaft extends out of the bearing seats to be connected with the power unit;
the bearing block 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-mixed hot recyclate heating apparatus as claimed in claim 1 or 2, wherein: the inner roller (20) and the outer roller (70) adopt a driving unit driven by chain wheels;
the chain wheel transmission driving unit comprises a chain ring (60), a small chain wheel (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 an 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 bottom frame (220);
the inner roller (20) and the outer roller (70) are both provided with a supporting unit; the supporting unit comprises a rolling ring (30), a butterfly plate (40) and a rolling ring supporting 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 seats through bearings;
the bearing block 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. The plant-mixed hot recycled material heating device of claim 3, wherein: the power unit (190) adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupling form.
6. The plant-mixed hot recycled material heating device of claim 4, wherein: two ends of the inner roller (20) and the outer roller (70) are respectively provided with two groups of supporting units, and the driver (170) adopts a hollow shaft speed reducing motor or a solid shaft speed reducing motor and a coupler.
7. The plant-mixed hot recycled material heating device of claim 1, wherein: the under frame (220) is arranged to be inclined downwards along the advancing direction of the fresh aggregate.
8. The plant-mixed hot recycled material heating apparatus of claim 7, wherein: the axial line of the burning end of the burner (200) is coincident with the axial line of the double-layer roller.
9. The plant-mixed hot recycled material heating device of claim 1, wherein: the outer cylinder material guide blades (130) are arranged in a spiral line.
10. The plant-mixed hot recycled material heating device of claim 1, wherein: an outer cylinder material guide plate (90) is arranged on the inner wall of the outer roller (70), and the position of the outer cylinder material guide plate (90) corresponds to the ring surface of the reclaimed material feeding ring (80); an inner cylinder material guide plate (10) is arranged in the feed end of the inner roller (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452349.7U CN210104492U (en) | 2019-04-04 | 2019-04-04 | Hot reclaimed material heating device of plantmix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452349.7U CN210104492U (en) | 2019-04-04 | 2019-04-04 | Hot reclaimed material heating device of plantmix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210104492U true CN210104492U (en) | 2020-02-21 |
Family
ID=69536252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920452349.7U Withdrawn - After Issue CN210104492U (en) | 2019-04-04 | 2019-04-04 | Hot reclaimed material heating device of plantmix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210104492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853332A (en) * | 2019-04-04 | 2019-06-07 | 陕西达刚筑路环保设备有限公司 | A kind of hot in-plant reclaimed material heating device |
-
2019
- 2019-04-04 CN CN201920452349.7U patent/CN210104492U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853332A (en) * | 2019-04-04 | 2019-06-07 | 陕西达刚筑路环保设备有限公司 | A kind of hot in-plant reclaimed material heating device |
| CN109853332B (en) * | 2019-04-04 | 2023-09-15 | 陕西达刚筑路环保设备有限公司 | Plant-mixed heat regenerated material heating device |
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