CN211497507U - Rubber powder modified asphalt production line - Google Patents

Abstract

The utility model discloses a rubber powder modified asphalt production line, which belongs to the technical field of petrochemical equipment, and comprises a matrix asphalt pump, an asphalt heat exchanger, a tubular mixer, a primary grinding device, a finished product tank, an incinerator and a medium heat exchange device, wherein the matrix asphalt pump, the asphalt heat exchanger, the tubular mixer, the primary grinding device, the finished product tank, the incinerator and the medium heat exchange device can be assembled and carried; after asphalt smoke in the production process and the finished product tank enters the incinerator for combustion through the induced draft fan, high-heat smoke carries out medium heat exchange in the medium heat exchange device, so that a heat source is guaranteed for the whole system, the environment is protected, emission is reduced, and the smoke after heat exchange reaches the emission standard and is discharged through the flue. The utility model discloses can follow the project and engage in rubber powder modified asphalt production work, the pitch cigarette has realized discharge to reach standard after the burning, and the flue gas waste heat can cyclic utilization simultaneously, has realized the purpose of energy saving and consumption reduction, environmental protection production, convenient popularization and application.

Description

Rubber powder modified asphalt production line

Technical Field

The utility model belongs to the technical field of petrochemical equipment, especially, relate to a rubber powder modified asphalt production line.

Background

The rubber powder modified asphalt is prepared by adding rubber powder and various modifiers into matrix asphalt according to different proportions and sequences, stirring and shearing at high strength, and uniformly dispersing the rubber powder and the modifiers in the asphalt under the combined action of chemical energy, heat energy and mechanical energy to perform development reaction to form a stable rubber powder modified asphalt structural system; is an effective measure for improving the performance of the asphalt and realizing the resource treatment of the waste rubber.

The traditional equipment for producing the rubber powder modified asphalt adopts a vertical reaction kettle to stir and mix, belongs to an intermittent production mode, is large in size and cannot move, and the tail gas emission in a finished product tank does not reach the standard, so that the traditional equipment has great limitation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rubber powder modified asphalt production line is provided, aim at solving among the above-mentioned prior art traditional production facility and adopt vertical reation kettle stirring to mix, belong to intermittent type formula production mode, have the technical problem that the volume of the body is big, can not remove, exhaust emissions is not up to standard.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a rubber powder modified asphalt production line comprises a matrix asphalt pump, an asphalt heat exchanger, a tubular mixer, a primary grinding device, a finished product tank, an incinerator and a medium heat exchange device, wherein the matrix asphalt pump, the asphalt heat exchanger, the tubular mixer, the primary grinding device, the finished product tank, the incinerator and the medium heat exchange device can be assembled and carried, a discharge hole of the matrix asphalt pump is connected with a feed hole of the asphalt heat exchanger, the tubular mixer is provided with a feed hole for adding rubber powder and various additives, the feed hole of the tubular mixer is connected with a discharge hole of the asphalt heat exchanger, the discharge hole of the tubular mixer is connected with the feed hole of the primary grinding device; the asphalt smoke discharge pipe of the finished product tank is connected with the incinerator through an induced draft fan, and the smoke of the incinerator penetrates through the medium heat exchange device and is used for heat exchange between the medium in the medium heat exchange device and the burning smoke; and a medium pipeline of the medium heat exchange device penetrates through the tubular mixer and the asphalt heat exchanger and is used for heating and maintaining the temperature required in the production process of the matrix asphalt.

Preferably, the discharge hole of the finished product tank is connected with a secondary grinding device; the primary grinding device and the secondary grinding device are shearing machines or colloid mills.

Preferably, the asphalt heat exchanger comprises a plurality of heating tanks which are sequentially connected, an asphalt pipeline for conveying asphalt is arranged in each heating tank, a first natural gas burner is arranged at the top of each heating tank, and a discharge pipe of each heating tank is provided with a temperature sensor; and the outlet of the discharge pipe of the heating tank is connected with a compressed air pipe and a sewage discharge pipe through a three-way valve.

Preferably, a discharge pipe of the asphalt heat exchanger is connected with a preheated asphalt pump, and a discharge port of the preheated asphalt pump is connected with a pipeline for conveying the matrix asphalt; the preheating asphalt pump and the asphalt heat exchanger are both arranged in the cabinet body, and a central control room is also arranged in the cabinet body and used for controlling the asphalt heat exchanger and the preheating asphalt pump.

Preferably, the medium heat exchange device is a heat conduction oil furnace, a medium outlet pipe of the heat conduction oil furnace is connected with a medium inlet pipe in an asphalt heat exchanger discharge pipe through an oil pump, and the medium outlet pipe in the asphalt heat exchanger discharge pipe is connected with a medium inlet pipe of the heat conduction oil furnace.

Preferably, a rubber powder feeding device is arranged on the side face of the feeding port of the tubular mixer and comprises a rubber powder tank and a metering feeding machine, the feeding port of the metering feeding machine is connected with the bottom discharging port of the rubber powder tank, and the discharging port of the metering feeding machine is connected with the feeding port of the tubular mixer.

Preferably, the spiral blade of the metering feeder is of a hollow structure, and the inner cavity of the spiral blade is filled with a heating medium for preheating rubber powder; and a discharge port of the metering feeder is provided with a metering module.

Preferably, the incinerator and the heat-conducting oil furnace are both arranged in a transportable frame, a second natural gas burner is arranged at the bottom of the incinerator, and the inner cavity of the incinerator is communicated with an asphalt smoke discharge pipe; the heat-conducting oil furnace and the incinerator are arranged in the frame in parallel, and an oil pump and a heat-conducting oil outlet are arranged at the bottom of the heat-conducting oil furnace; and the smoke outlet of the incinerator is connected with an exhaust fan.

Preferably, the tubular mixer comprises a plurality of horizontally arranged mixing barrels, the mixing barrels are sequentially connected from top to bottom, and a discharge hole of an upper mixing barrel is in butt joint with a feed hole of a lower mixing barrel adjacent to the discharge hole; the inner cavity of the mixing cylinder is provided with a helical blade driven by a motor; the discharge hole of the bottom mixing cylinder is connected with a modified asphalt pump.

Preferably, the modified asphalt pump, the tubular mixer and the primary grinding device are all arranged on the mounting frame, and the modified asphalt pump and the primary grinding device are arranged at the bottom of the side face of the tubular mixer.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model utilizes the asphalt heat exchanger to heat the matrix asphalt, the rubber powder and various additives are fully stirred and mixed by the aid of the tubular mixer, and the mixed materials are ground by the primary grinding device and then enter the finished product tank for storage; after the asphalt smoke of the finished product tank enters the incinerator for combustion through the induced draft fan, the high-heat smoke carries out medium heat exchange in the medium heat exchange device, so that a heat source is guaranteed for the whole system, the environment is protected, emission is reduced, and the smoke after heat exchange reaches the emission standard and is discharged through the flue. The utility model has the advantages of simple structure is compact, the transport of convenient hoist and mount, and each part such as pitch heat exchanger and tubular blender is convenient along with the project migration, and the discharge to reach standard has been realized to the pitch cigarette after the burning, and flue gas waste heat can recycle simultaneously, has realized energy saving and consumption reduction, environmental protection production's purpose, convenient popularization and application.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a rubber powder modified asphalt production line provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of the construction of the asphalt heat exchanger of FIG. 1;

FIG. 3 is a schematic diagram of the construction of the tube blender of FIG. 1;

FIG. 4 is a schematic structural view of an incinerator and a medium heat exchanger in the embodiment of the present invention;

in the figure: 1-a matrix asphalt pump; 2-a bitumen heat exchanger; 3-tubular mixer, 31-first mixing barrel, 32-second mixing barrel, 33-third mixing barrel; 4-primary grinding device; 5-finished product tank; 6-incinerator; 7-medium heat exchange device; 8-induced draft fan; 9-a glue powder tank; 10-a metering feeder; 11-an exhaust fan; 12-an oil pump; 13-a frame; 14-a second natural gas burner; 15-an asphalt smoke discharge pipe; 16-a heat transfer oil outlet; 17-a mounting frame; 18-rubber powder inlet; 19-a matrix asphalt inlet; 20-a modified asphalt output pipe; 21-a modified asphalt pump; 22-a heating tank; 23-a first natural gas burner; 24-a temperature sensor; 25-three-way valve; 26-compressed air pipe; 27-a sewage draining pipe; 28-preheat asphalt pump; 29-a cabinet body; 30-a central control room; 34-a compressed air inlet; 35-a matrix asphalt inlet; 36-a matrix asphalt outlet; 37-natural gas pipe; 38-natural gas inlet.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The rubber powder modified asphalt production line shown in fig. 1 comprises a matrix asphalt pump 1, an asphalt heat exchanger 2, a tubular mixer 3, a primary grinding device 4, a finished product tank 5, an incinerator 6 and a medium heat exchange device 7 which can be assembled and carried, wherein a discharge port of the matrix asphalt pump 1 is connected with a feed port of the asphalt heat exchanger 2, the tubular mixer 3 is provided with a feed port for adding rubber powder and various additives, the feed port of the tubular mixer 3 is connected with a discharge port of the asphalt heat exchanger 2, the discharge port of the tubular mixer 3 is connected with a feed port of the primary grinding device 4, and a discharge port of the primary grinding device 4 is connected with the finished product tank 5; the asphalt smoke discharge pipe of the finished product tank 5 is connected with the incinerator 6 through the induced draft fan 8, and the smoke of the incinerator 6 penetrates through the medium heat exchange device 7 and is used for heat exchange between the medium in the medium heat exchange device 7 and the burning smoke; and a medium pipeline of the medium heat exchange device 7 penetrates through a discharge pipe of the asphalt heat exchanger 2 and is used for maintaining the temperature required by asphalt in the production process. Heating asphalt to a temperature required by the process by using an asphalt heat exchanger, fully stirring and mixing the asphalt, rubber powder and various additives by using a tubular mixer, grinding the mixed material by using a primary grinding device, and then storing the ground material in a finished product tank; after asphalt smoke generated in the finished product tank and the production process enters an incinerator for combustion through an induced draft fan, high-heat smoke exchanges heat with a medium in a medium heat exchange device, the temperature of the matrix asphalt entering a tubular mixer is guaranteed to be 180-195 ℃, and the smoke after heat exchange is discharged after reaching the standard through a flue.

Compared with the prior art, the rubber powder modified asphalt production line has the advantages of energy conservation, consumption reduction, continuous production, compact structure, convenient transportation and the like, and the asphalt heat exchanger is utilized to heat the matrix asphalt, then the matrix asphalt enters the tubular mixer to be fully stirred and mixed with the rubber powder and various additives, and then the mixture enters the finished product tank to be stored; the asphalt smoke of the finished product tank is discharged after reaching the standard after entering the incinerator for combustion, and meanwhile, the waste heat of the smoke is recycled through the heat-conducting oil furnace, so that the aims of energy conservation, consumption reduction and environment-friendly production are fulfilled.

Further, referring to fig. 1, as a specific embodiment of the rubber powder modified asphalt production line provided by the present invention, the discharge port of the finished product tank 5 is connected to a secondary grinding device; the primary grinding device 4 and the secondary grinding device are shearing machines or colloid mills. When the rubber powder accounts for 90-130 parts, development time is not needed in a finished product tank; when the rubber powder is 130-240 parts, the development time of 15-40 min is correspondingly increased in a finished product tank, and the rubber powder can be used only by a secondary grinding device. If the equipment is used in a construction site, the equipment is directly added into a mixture mixing plant after passing through a secondary grinding device; if the equipment is used in a factory, the secondary grinding device is loaded after being used and then is conveyed to a construction site.

Further, referring to fig. 2, as a specific embodiment of the rubber powder modified asphalt production line provided by the present invention, the asphalt heat exchanger 2 includes a plurality of sequentially connected heating tanks 22, an asphalt pipeline for conveying asphalt is disposed inside the heating tank 22, a first natural gas burner 23 is disposed at the top of the heating tank 22, and a temperature sensor 24 is disposed on a discharge pipe of the heating tank 22; the outlet of the outlet pipe of the heating tank 22 is connected with a compressed air pipe 26 and a sewage discharge pipe 27 through a three-way valve 25. The specific structure of the asphalt heat exchanger is disclosed in the patent cn201910597492.x, and is not described herein.

Further, referring to fig. 2, as a specific embodiment of the rubber powder modified asphalt production line provided by the present invention, the discharge pipe of the asphalt heat exchanger 2 is connected to a preheated asphalt pump 28, and the discharge port of the preheated asphalt pump 28 is connected to a pipeline for conveying the matrix asphalt; the preheating asphalt pump 28 and the asphalt heat exchanger 2 are both arranged in the cabinet body 29, and a central control room 30 is further arranged in the cabinet body 29 and used for controlling the asphalt heat exchanger 2 and the preheating asphalt pump 28. Each part is integrated in the cabinet body, so that the lifting and the carrying are convenient, and the movable cabinet can be moved to any place along with the project.

Further, as the utility model provides a rubber powder modified asphalt production line's a specific embodiment, medium heat transfer device 7 is the heat conduction oil furnace, the medium exit tube of heat conduction oil furnace advances the pipe through the medium in oil pump 12 and the 2 discharge pipes of asphalt heat exchanger and links to each other, the medium exit tube in the 2 discharge pipes of asphalt heat exchanger advances the pipe with the medium of heat conduction oil furnace and links to each other.

Further, refer to fig. 1, as the utility model provides a rubber powder modified asphalt production line's a specific embodiment, tubular blender 3's material loading side is equipped with rubber powder loading attachment, rubber powder loading attachment includes rubber powder jar 9 and measurement material loading machine 10, the feed inlet of measurement material loading machine 10 links to each other with rubber powder jar 9's bottom discharge mouth, the discharge gate of measurement material loading machine 10 links to each other with tubular blender 3's material loading mouth. Utilize measurement material loading machine to carry the rubber powder to tubular blender, convenient and fast can reduce staff's intensity of labour.

Further, conduct the utility model provides a rubber powder modified asphalt production line's a specific embodiment, the helical blade of measurement material loading machine 10 is hollow structure, helical blade's inner chamber is full of heating medium for preheat the rubber powder. The heat conducting oil can be input into the spiral blade, and the rubber powder is preheated by utilizing the heat of the heat conducting oil. Meanwhile, a metering module is arranged at a discharge port of the metering feeder 10, so that the feeding amount of the rubber powder is conveniently metered; or a metering module is arranged at the feed inlet of the tubular mixer.

Further optimizing the technical scheme, as shown in fig. 4, the incinerator 6 and the heat-conducting oil furnace are both arranged in a transportable frame 13, a second natural gas burner 14 is arranged at the bottom of the incinerator 6, and the inner cavity of the incinerator 6 is communicated with an asphalt smoke discharge pipe 15; the heat conduction oil furnace and the incinerator 6 are arranged in parallel in the frame 13, and an oil pump 12 and a heat conduction oil outlet 16 are arranged at the bottom of the heat conduction oil furnace; the flue outlet of the incinerator 6 is connected with an exhaust fan 11. Burn burning furnace and heat conduction oil furnace and integrate to the frame in, convenient hoist and mount, transport can shift to arbitrary place along with the project.

Further, referring to fig. 1 and 3, as a specific embodiment of the rubber powder modified asphalt production line provided by the present invention, the tubular mixer 3 includes a plurality of horizontally arranged mixing barrels, the plurality of mixing barrels are connected in sequence from top to bottom, and the discharge port of the upper mixing barrel is butted with the feed port of the lower mixing barrel adjacent thereto; the inner cavity of the mixing cylinder is provided with a helical blade driven by a motor, and the motor is arranged at the end part of the mixing cylinder; the discharge hole of the bottom mixing cylinder is connected with a modified asphalt pump 21.

For the convenience of hoisting and carrying, the modified asphalt pump 21, the tubular mixer 3 and the primary grinding device 4 can be arranged on the mounting frame 17, and the modified asphalt pump 21 and the primary grinding device 4 are arranged at the bottom of the side surface of the tubular mixer 3. In the embodiment shown in fig. 1 and 3, the number of mixing cylinders is 3, and the mixing cylinders are a first mixing cylinder 31, a second mixing cylinder 32 and a third mixing cylinder 33 from top to bottom in the figure, the upper surface of the upper first mixing cylinder 31 is provided with a rubber powder inlet 18 and a matrix asphalt inlet 19, and the discharge port of the primary grinding device 4 is connected with a modified asphalt discharge pipe 20. Various additives are added through a rubber powder inlet, matrix asphalt, rubber powder and various additives are added in a first mixing barrel, then the raw materials are uniformly mixed through a second mixing barrel and a third mixing barrel, and finally the raw materials are output through a modified asphalt pump.

In addition, the frame 13, the mounting frame 17 and the cabinet 29 can be fixed together, so that the whole equipment can be conveniently transported.

To sum up, the utility model has the advantages of simple structure is compact, the transport is nimble convenient, installs the asphalt heat exchanger at the cabinet internally, burns burning furnace and heat conduction oil furnace installation frame in, modified asphalt pump, tubular blender and a grinder all set up in the mounting bracket, adopt these modular structure to conveniently hoist and mount the transport, can also move along with the change in project place. The matrix asphalt is fully preheated by the asphalt heat exchanger and the heat conducting oil, then is stirred and mixed with the rubber powder and various additives by the tubular mixer, and then is subjected to the grinding device to obtain the modified asphalt meeting the requirements, and the modified asphalt enters a finished product tank for storage, so that the continuous production can be realized, the production efficiency can reach 30 tons/hour, and the power of the whole set of equipment is 200 kw. Meanwhile, the asphalt smoke discharged by the finished product tank is combusted by the incinerator and then is discharged up to the standard; the heat-conducting oil furnace is used for fully utilizing the flue gas of the incinerator for preheating, so that the heat loss is reduced, the purposes of energy conservation, consumption reduction and emission reduction are realized, the production is safe and environment-friendly, and the popularization and the application are convenient.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the one described herein, and those skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed above.

Claims (10)

1. The utility model provides a rubber powder modified asphalt production line which characterized in that: the device comprises a matrix asphalt pump, an asphalt heat exchanger, a tubular mixer, a primary grinding device, a finished product tank, an incinerator and a medium heat exchange device, wherein the matrix asphalt pump can be assembled and carried, a discharge hole of the matrix asphalt pump is connected with a feed inlet of the asphalt heat exchanger, the tubular mixer is provided with a feed inlet for adding rubber powder and various additives, the feed inlet of the tubular mixer is connected with a discharge hole of the asphalt heat exchanger, the discharge hole of the tubular mixer is connected with the feed inlet of the primary grinding device, and the discharge hole of the primary grinding device is connected with the finished product tank; the tubular mixer and the asphalt smoke discharge pipe of the finished product tank are connected with the incinerator through the induced draft fan, and the smoke of the incinerator penetrates through the medium heat exchange device and is used for heat exchange between the medium in the medium heat exchange device and the burnt smoke; and a medium pipeline of the medium heat exchange device penetrates through the tubular mixer and the asphalt heat exchanger and is used for heating and maintaining the temperature required in the production process of the matrix asphalt.

2. The rubber powder modified asphalt production line of claim 1, which is characterized in that: the discharge hole of the finished product tank is connected with a secondary grinding device; the primary grinding device and the secondary grinding device are shearing machines or colloid mills.

3. The rubber powder modified asphalt production line of claim 1, which is characterized in that: the asphalt heat exchanger comprises a plurality of heating tanks which are sequentially connected, an asphalt pipeline for conveying asphalt is arranged in each heating tank, a first natural gas burner is arranged at the top of each heating tank, and a discharge pipe of each heating tank is provided with a temperature sensor; and the outlet of the discharge pipe of the heating tank is connected with a compressed air pipe and a sewage discharge pipe through a three-way valve.

4. The rubber powder modified asphalt production line of claim 3, which is characterized in that: a discharge pipe of the asphalt heat exchanger is connected with a preheated asphalt pump, and a discharge port of the preheated asphalt pump is connected with a pipeline for conveying matrix asphalt; the preheating asphalt pump and the asphalt heat exchanger are both arranged in the cabinet body, and a central control room is also arranged in the cabinet body and used for controlling the asphalt heat exchanger and the preheating asphalt pump.

5. The rubber powder modified asphalt production line of claim 1, which is characterized in that: the medium heat exchange device is a heat conduction oil furnace, a medium outlet pipe of the heat conduction oil furnace is connected with a medium inlet pipe in an asphalt heat exchanger discharge pipe through an oil pump, and the medium outlet pipe in the asphalt heat exchanger discharge pipe is connected with a medium inlet pipe of the heat conduction oil furnace.

6. The rubber powder modified asphalt production line of claim 1, which is characterized in that: the rubber powder feeding device is arranged on the side face of a feeding hole of the tubular mixer and comprises a rubber powder tank and a metering feeding machine, a feeding hole of the metering feeding machine is connected with a bottom discharging hole of the rubber powder tank, and a discharging hole of the metering feeding machine is connected with the feeding hole of the tubular mixer.

7. The rubber powder modified asphalt production line of claim 6, which is characterized in that: the spiral blade of the metering feeder is of a hollow structure, and the inner cavity of the spiral blade is filled with a heating medium for preheating rubber powder; and a discharge port of the metering feeder is provided with a metering module.

8. The rubber powder modified asphalt production line of claim 5, which is characterized in that: the incinerator and the heat-conducting oil furnace are both arranged in a transportable frame, a second natural gas burner is arranged at the bottom of the incinerator, and the inner cavity of the incinerator is communicated with an asphalt smoke discharge pipe; the heat-conducting oil furnace and the incinerator are arranged in the frame in parallel, and an oil pump and a heat-conducting oil outlet are arranged at the bottom of the heat-conducting oil furnace; and the smoke outlet of the incinerator is connected with an exhaust fan.

9. The rubber powder modified asphalt production line according to any one of claims 1 to 8, characterized in that: the tubular mixer comprises a plurality of horizontally arranged mixing barrels, the mixing barrels are sequentially connected from top to bottom, and a discharge hole of the upper mixing barrel is in butt joint with a feed hole of the lower mixing barrel adjacent to the discharge hole; the inner cavity of the mixing cylinder is provided with a helical blade driven by a motor; the discharge hole of the bottom mixing cylinder is connected with a modified asphalt pump.

10. The rubber powder modified asphalt production line of claim 9, which is characterized in that: the modified asphalt pump, the tubular mixer and the primary grinding device are all arranged on the mounting frame.

Images