CN113736137A - Rubber powder desulfurization equipment for rubber asphalt production - Google Patents
Rubber powder desulfurization equipment for rubber asphalt production Download PDFInfo
- Publication number
- CN113736137A CN113736137A CN202111136809.3A CN202111136809A CN113736137A CN 113736137 A CN113736137 A CN 113736137A CN 202111136809 A CN202111136809 A CN 202111136809A CN 113736137 A CN113736137 A CN 113736137A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- rubber
- rubber powder
- asphalt
- stirring
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2319/00—Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses rubber powder desulfurization equipment for rubber asphalt production, which belongs to the technical field of rubber asphalt production equipment and comprises a cylinder body, wherein the top of the cylinder body is provided with an asphalt inlet, a rubber particle inlet, a waveguide tube and a stirring motor, and the stirring motor drives a stirring shaft in the cylinder body to rotate through a speed reducer; the bottom of the cylinder body is provided with a material output device, the upper part of the cylinder body is provided with an exhaust pipe, and the side wall of the cylinder body is provided with an ultrasonic vibration device. Asphalt and rubber particles are injected into the cylinder, the stirring shaft is driven by the stirring motor to rotate for mechanical stirring, and the ultrasonic waves emitted by the ultrasonic vibration device are utilized to further stir the internal materials, so that the phenomena of wall hanging and bonding of the rubber particles can be effectively avoided, and the desulfurization effect of the rubber powder is better; meanwhile, the ultrasonic waves and the microwaves introduced by the waveguide tube are utilized to desulfurize the rubber particles, so that the desulfurization efficiency is accelerated; the material output device can accelerate the discharging speed and improve the production efficiency. The invention has simple and compact structure, low manufacturing cost, high automation level and convenient and quick operation.
Description
Technical Field
The invention belongs to the technical field of rubber asphalt production equipment, and particularly relates to rubber powder desulfurization equipment for rubber asphalt production.
Background
The rubber desulfurization is that the S-S bond and the S-C bond in the rubber molecule are subjected to bond breaking reaction by using technical means, so that the three-dimensional network structure in the vulcanized rubber is destroyed, and the elastic vulcanized rubber is changed into the reclaimed rubber with plasticity. At present, the rubber desulfurization method is mainly divided into a physical method and a chemical method, wherein the physical method has the characteristics of small influence on the environment, low cost and the like because of large-scale production. At present, although a plurality of desulfurization devices have been proposed, a plurality of disadvantages still exist.
Patent (CN1733443A) is a "technique and method for continuously treating the surface of waste rubber with microwaves" proposed by korean modern automotive corporation. The invention puts a certain amount of rubber powder on a belt conveyor, so that the rubber powder moves forwards and is sent into a microwave resonant cavity, and the desulfurization process is finished by utilizing microwave radiation.
Patent (CN102634056A) proposes to add the rubber powder continuously on the belt conveyor, and the conveyer belt transports the rubber powder forward, and the conveyer belt top adds has the radiation microwave source, accomplishes the desulfurization process through the heating of microwave source, and the reclaimed rubber of output is transported to the cooling chamber and is cooled off, sends again to the workshop of mixing rubber after the cooling is accomplished, but whole equipment structure is complicated, and the difficulty is great in the implementation. Moreover, the conveying belt of the belt conveyor is often subjected to microwave heating and freezing of the cooling chamber, the cold and hot are frequently alternated, the service life of the conveying belt can be greatly shortened, and the reliability of the whole machine is further influenced.
Utility model patent (CN203582776U) proposes replacing belt conveyor with screw conveyer, and screw conveyer's outer pipeline adopts the silicon ceramic pipeline of high strength, has effectively improved the device reliability, has reduced the complexity of device. But has the disadvantages that firstly, the manufacturing difficulty of the high-strength ceramic pipeline required by the screw conveyer is higher; secondly, the device is difficult to meet the purpose of processing rubber powder in large quantities.
In summary, the existing rubber desulfurization equipment has certain problems, mainly including the following points, high equipment complexity, difficult implementation, high cost, large processing difficulty of key parts of the equipment, low automation level, and the like. The novel rubber desulfurization equipment provided by the invention can effectively solve the problems.
Disclosure of Invention
The invention aims to provide rubber powder desulfurization equipment for rubber asphalt production, and aims to solve the technical problems of high equipment complexity, low automation level, overhigh cost, difficult implementation and high processing difficulty of key parts of the rubber desulfurization equipment in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a rubber powder desulfurization device for rubber asphalt production comprises a cylinder body for containing asphalt and rubber particles, wherein the top of the cylinder body is provided with an asphalt inlet, a rubber particle inlet, a waveguide tube and a stirring motor, and the stirring motor drives a stirring shaft in the cylinder body to rotate through a speed reducer; the bottom of the cylinder body is provided with a material output device, and the upper part of the cylinder body is provided with an exhaust pipe; the side wall of the cylinder body is provided with an ultrasonic vibration device.
Preferably, the speed reducer is a coaxial dual-output planetary gear speed reducer, the output shaft of the speed reducer is of a coaxial dual-output structure, the output shaft is coaxially fixed with the stirring shaft, the stirring shaft comprises an inner shaft and an outer shaft which are different in rotation direction, the lower part of the inner shaft extends to the lower part of the outer shaft, and the lower end of the outer shaft is provided with an end cover and is in rotating fit with the inner shaft through a bearing; the outer shafts and the outer walls of the lower ends of the inner shafts are provided with paddles.
Preferably, the stirring motors are multiple, and the rotating directions of the adjacent stirring motors are opposite.
Preferably, the inner wall of barrel is equipped with temperature-detecting device, temperature-detecting device is including pulse ultrasonic emission device and the ultrasonic receiving device that the symmetry set up on the barrel lateral wall, ultrasonic receiving device can receive the pulse signal that pulse ultrasonic emission device sent to can detect the required time of pulse signal through inside rubber powder asphalt mixed liquid, utilize the conduction velocity of ultrasonic wave in rubber powder asphalt mixed liquid inside to detect the pitch temperature.
Preferably, the process that the temperature detection device detects the temperature of the material in the cylinder is as follows:
the formula for obtaining the change of the conduction velocity of the ultrasonic wave in the asphalt along with the temperature by fitting the velocity and temperature data is
v＝a(T-10)2+b(T-10)+1506 (1)
In the formula (1), a is a quadratic coefficient of temperature, and the value range is-0.04 to-0.032;
b is a first-order coefficient of temperature, and the value range is 4.32-4.86;
v is the conduction velocity of the ultrasonic waves, unit m/s;
t is the temperature of the mixed liquid of the rubber powder asphalt and the unit;
wherein, the conduction velocity of the ultrasonic wave also satisfies the following formula:
v＝S/t (2)
in the formula (2), S is the distance between the pulse ultrasonic wave transmitting device and the ultrasonic wave receiving device and has a unit of m;
t is the time, unit s, required for the ultrasonic signal to be transmitted from the pulse ultrasonic wave transmitting device to the ultrasonic wave receiving device to receive the ultrasonic signal.
Temperature-detecting device can measure ultrasonic signal transmission and arrive the time t that receives ultrasonic signal and need, substitutes in formula (1) and formula (2), obtains the interior rubber powder pitch mixture temperature formula of barrel as follows:
preferably, the exhaust pipe is connected with the gas recovery device through an air pump, a gas return pipe is arranged at the bottom of the gas recovery device, and the gas return pipe is connected with the cylinder through a gas splitter.
Preferably, the exhaust pipe is provided with a gas detection device, and the gas detection device is arranged between the cylinder and the air pump.
Preferably, the ultrasonic vibration device comprises an ultrasonic vibrator and an ultrasonic generator, the ultrasonic vibrator is arranged on the outer wall of the cylinder body, and the ultrasonic vibrator is connected with the ultrasonic generator.
Preferably, a plurality of ultrasonic sensors are arranged in the cylinder body along the direction of the stirring shafts, transmitters and receivers of the ultrasonic sensors are respectively and correspondingly arranged on the inner walls of the top and the bottom of the cylinder body, and ultrasonic transmission lines formed by a plurality of groups of transmitters and receivers respectively correspond to the material area with the plurality of stirring shafts as the center; when an ultrasonic sensor is used for detection, the stirring shaft stops rotating at a certain angle, so that the stirring blades on the stirring shaft do not influence the transmission of ultrasonic waves in the rubber powder asphalt mixed liquid;
the ultrasonic sensor generates a oscillogram on an oscilloscope, and whether the distribution of rubber powder in the asphalt medium is uniform or not is judged by comparing the time and the amplitude in a plurality of oscillograms; when the oscillogram shows that the amplitude of the head wave is large, the pulse width is uniform, the frequency is stable, and the amplitude of each section of wave is stable, the distribution uniformity of the rubber powder in the area is good; when the oscillogram shows that the amplitude of the head wave is smaller than that of the normal wave band, the frequency is unstable, and the amplitude of each wave band is obviously different, the distribution uniformity of rubber powder in the area is poor, the stirring motor corresponding to the area is started, and the stirring speed is accelerated.
Preferably, the material output device comprises a material discharge pipe and a screw conveyor, the material discharge pipe is connected with a discharge port at the bottom of the cylinder body through a pneumatic valve, and the discharge port of the material discharge pipe is connected with a feed port of the screw conveyor.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the asphalt and rubber particles are injected into the cylinder, the waveguide tube is used for guiding microwaves, the top stirring motor drives the stirring shaft in the cylinder to rotate through the speed reducer so as to realize mechanical stirring, and meanwhile, the ultrasonic waves emitted by the ultrasonic vibration device on the side wall of the cylinder are used for further stirring internal materials, so that the internal materials are stirred more uniformly, the phenomena of wall hanging and bonding of the rubber particles can be effectively avoided, and the desulfurization effect of the rubber powder is better; meanwhile, the ultrasonic wave can further desulfurize the rubber particles in the material, so that the desulfurization efficiency is accelerated; the material output device at the bottom of the barrel can accelerate the discharging speed and improve the production efficiency. The invention has simple and compact structure, low manufacturing cost, high automation level, convenient and fast operation and convenient popularization and application; meanwhile, the desulfurization effect of the rubber powder is further improved by combining an ultrasonic sensing technology.
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 desulfurization device for rubber asphalt production according to an embodiment of the present invention;
FIG. 2 is a top plan view of a cartridge in accordance with an embodiment of the present invention;
FIG. 3 is a partial block diagram of a mixing shaft according to an embodiment of the present invention;
FIG. 4 is a layout view of the ultrasonic vibrator and the gas return pipe around the cylinder in the embodiment of the present invention;
FIG. 5 is a layout view of the temperature detecting device around the cylinder according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of the arrangement of the transmitter and receiver of the ultrasonic sensor inside the cylinder in the embodiment of the present invention;
in the figure: 1-a cylinder body; 2-rubber particle inlet; 3-a stirring motor; 4-a waveguide; 5-a speed reducer; 6-asphalt inlet; 7-a gas detection device; 8-air pump; 9-a gas recovery processing device; 10-gas return line; 11-a gas splitter; 12-material discharge motor; 13-a screw conveyor; 14-a material discharge pipe; 15-pneumatic valves; 16-temperature detection means; 17-an ultrasonic vibrator; 18-stirring shaft; 19-an ultrasonic generator; 161-pulsed ultrasonic wave generating device; 162-ultrasonic receiving means; 181-paddle; 182-the outer shaft; 183-bearings; 184-end cap; 185-an inner shaft; 20-an exhaust pipe; 21-transmitter, 22-receiver.
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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the rubber powder desulfurization equipment for rubber asphalt production provided by the invention comprises a cylinder 1 for containing asphalt and rubber particles, wherein the top of the cylinder 1 is provided with an asphalt inlet 6, a rubber particle inlet 2, a waveguide tube 4 and a stirring motor 3, and the stirring motor 3 drives a stirring shaft 18 in the cylinder 1 to rotate through a speed reducer 5; the bottom of the cylinder body 1 is provided with a material output device, and the upper part of the cylinder body 1 is provided with an exhaust pipe 20; the side wall of the cylinder body 1 is provided with an ultrasonic vibration device. The stirring shaft rotates to carry out mechanical stirring, and meanwhile, the ultrasonic waves emitted by the ultrasonic vibration device further stir the internal materials, so that the materials are stirred more uniformly, the phenomena of wall hanging and bonding of rubber particles are avoided, and the desulfurization effect of the rubber powder is better; and during microwave activation, the rubber particles in the material are subjected to auxiliary desulfurization by using ultrasonic waves, so that the desulfurization efficiency is accelerated.
In an embodiment of the present invention, as shown in fig. 1 and 3, the speed reducer 5 is a coaxial dual-output planetary gear speed reducer, the output shaft of the speed reducer 5 is a coaxial dual-output structure, the output shaft is coaxially fixed with the stirring shaft 18, the stirring shaft 18 includes an inner shaft 185 and an outer shaft 182 which have different rotation directions, the lower portion of the inner shaft 185 extends to below the outer shaft 182, the lower end of the outer shaft 182 is provided with an end cover 184, and is rotationally matched with the inner shaft 185 through a bearing 183; the outer walls of the lower ends of the outer shaft 182 and the inner shaft 185 are provided with paddles 181. Wherein, the agitator motor 3 is a plurality of, and adjacent agitator motor 3's rotation direction is opposite. The adjacent stirring motors have different rotation directions, and the inner shaft 185 and the outer shaft 182 which are coaxial and double-output have different rotation directions, so that the materials in the barrel body 1 can be uniformly stirred.
In the specific design, the number of the wave guide tubes and the number of the stirring motors in the embodiment shown in fig. 2 are 4, the number of the rubber particle inlets 2 and the number of the asphalt inlets 6 are respectively one, and the specific layout diagram on the cylinder body is shown in fig. 2.
Preferably, the inner wall of the cylinder 1 is provided with a temperature detection device 16, the temperature detection device includes a pulse ultrasonic wave emitting device 161 and an ultrasonic wave receiving device 162 symmetrically arranged on the side wall of the cylinder 1, the ultrasonic wave receiving device 162 can receive a pulse signal emitted by the pulse ultrasonic wave emitting device 161 and can detect the time required for the pulse signal to pass through the internal rubber powder asphalt mixed liquid, and the asphalt temperature is detected by using the conduction velocity of the ultrasonic wave in the rubber powder asphalt mixed liquid.
Preferably, the process of detecting the temperature of the material inside the cylinder 1 by the temperature detecting device 16 is as follows:
the formula for obtaining the change of the conduction velocity of the ultrasonic wave in the asphalt along with the temperature by fitting the velocity and temperature data is
v＝a(T-10)2+b(T-10)+1506 (1)
In the formula (1), a is a quadratic coefficient of temperature, and the value range is-0.04 to-0.032;
b is a first-order coefficient of temperature, and the value range is 4.32-4.86;
v is the conduction velocity of the ultrasonic waves, unit m/s;
t is the temperature of the mixed liquid of the rubber powder asphalt and the unit;
wherein, the conduction velocity of the ultrasonic wave also satisfies the following formula:
v＝S/t (2)
in the formula (2), S is the distance between the pulse ultrasonic wave transmitting device and the ultrasonic wave receiving device and has a unit of m;
t is the time, unit s, required for the ultrasonic signal to be transmitted from the pulse ultrasonic wave transmitting device to the ultrasonic wave receiving device to receive the ultrasonic signal.
Temperature-detecting device can measure ultrasonic signal transmission and arrive the time t that receives ultrasonic signal and need, substitutes in formula (1) and formula (2), obtains the interior rubber powder pitch mixture temperature formula of barrel as follows:
as shown in the above formula (3), the temperature of the material in the barrel can be obtained from the measured time required for the ultrasonic signal to be emitted and received. In specific application, as shown in fig. 5, the pulse ultrasonic wave emitting device 161 emits a pulse signal every 0.5 second, the ultrasonic wave receiving device 162 detects the time required for the pulse signal to arrive, and the temperature of the material can be further obtained after the transmission speed of the ultrasonic wave is obtained, so as to determine the desulfurization condition.
In one embodiment of the present invention, as shown in fig. 1 and 4, the exhaust pipe 20 is connected to the gas recovery device 9 through the air pump 8, the bottom of the gas recovery device 9 is provided with a gas return pipe 10, and the gas return pipe 10 is connected to the cylinder 1 through the gas splitter 11. Wherein, be equipped with gaseous detection device 7 on the blast pipe 20, gaseous detection device 7 sets up between barrel 1 and air pump 8. Wherein, gaseous detection device can adopt the gas detection appearance, can collect the pitch steam in the barrel 1 interior gas and the sulphide that the desulfurization produced on the one hand through gas detection device 7, and on the other hand can detect the sulphide content in the gas that flows through in the unit interval, helps judging the desulfurization process. If the desulfurization is finished, discharging the material out of the cylinder body through the material output device; after all the materials are discharged, opening the asphalt inlet 6 and the rubber particle inlet 2 to perform the next round of desulfurization.
As shown in fig. 4, the gas return pipe 10 surrounds the cylinder and is communicated with the cylinder through 4 gas diverters 11 on the side wall; the return gas flow is controlled by means of a gas splitter 11. The structure and operation principle of the gas splitter 11 and the gas recovery processing device 9 belong to the prior art, and are not described herein. The gas recovery processing device mainly removes asphalt steam and sulfide in the air through condensation, filtration, chemical reaction and other means, reduces the pollution to the environment and simultaneously cools the gas, and the cooled gas can return to the barrel body 1 through the bottom gas return pipe 10 and the gas diverter 11 to play a role in cooling and stirring.
Further optimizing the technical scheme, as shown in fig. 1, the ultrasonic vibration device includes an ultrasonic vibrator 17 and an ultrasonic generator 19, the ultrasonic vibrator 17 is disposed on the outer wall of the cylinder 1, and the ultrasonic vibrator 17 is connected to the ultrasonic generator 19. It is right through the ultrasonic wave material in the barrel 1 vibrates the stirring, makes the rubber granule take place the vibration, avoids the rubber granule to take place unfavorable phenomena such as bonding, wall built-up, and the ultrasonic wave also can assist the desulfurization to the rubber granule in the material simultaneously, strengthens desulfurization effect.
In an embodiment of the present invention, as shown in fig. 6, a plurality of ultrasonic sensors are disposed in the cylinder 1 along the direction of the stirring shafts, the transmitters 21 and the receivers 22 of the ultrasonic sensors are respectively disposed on the top and bottom inner walls of the cylinder 1, and the ultrasonic transmission lines formed by the plurality of sets of transmitters 21 and receivers 22 respectively correspond to the material areas centered on the plurality of stirring shafts; when an ultrasonic sensor is used for detection, the stirring shaft stops rotating at a certain angle, so that the stirring blades on the stirring shaft do not influence the transmission of ultrasonic waves in the rubber powder asphalt mixed liquid;
the ultrasonic sensor generates a oscillogram on an oscilloscope, and whether the distribution of rubber powder in the asphalt medium is uniform or not is judged by comparing the time and the amplitude in a plurality of oscillograms; when the oscillogram shows that the amplitude of the head wave is large, the pulse width is uniform, the frequency is stable, and the amplitude of each section of wave is stable, the distribution uniformity of the rubber powder in the area is good; when the oscillogram shows that the amplitude of the head wave is smaller than that of the normal wave band, the frequency is unstable, and the amplitude of each wave band is obviously different, the distribution uniformity of the rubber powder in the area is poor, the stirring motor corresponding to the area is started, and the stirring speed is accelerated
In one embodiment of the present invention, as shown in fig. 1, the material output device comprises a material discharge pipe 14 and a screw conveyor 13, wherein the material discharge pipe 14 is connected with a discharge port at the bottom of the cylinder 1 through a pneumatic valve 15, and the discharge port of the material discharge pipe 14 is connected with a feed port of the screw conveyor 13. Wherein, screw conveyer 13 adopts motor drive, and the pneumatic valve is pneumatic butterfly valve, can manage and control whether the discharge of material, utilizes screw conveyer can effective control the speed of getting rid of material.
In conclusion, the device has the advantages of simple and compact structure and high automation level, asphalt and rubber powder in the cylinder are mechanically stirred by the stirring shaft, and are further stirred by ultrasonic waves, so that internal materials are uniformly stirred, the phenomena of wall hanging and bonding of rubber particles can be avoided by the ultrasonic waves, and the rubber particles are further desulfurized by the ultrasonic waves, so that the desulfurization efficiency of the rubber powder is high. In addition, whether the distribution of the rubber powder in the asphalt medium is uniform or not is judged by utilizing the ultrasonic sensors arranged along the direction of the stirring shaft, and the distribution uniformity of the rubber powder is improved through the linkage of the ultrasonic sensors and the stirring motor, so that the desulfurization uniformity of the rubber powder is improved. The rubber powder has better desulfurization effect and is convenient to popularize and apply.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and thus the present invention is not limited to the specific embodiments disclosed above.
Claims (10)
1. A rubber powder desulfurization equipment for rubber asphalt production, which is characterized in that: the device comprises a cylinder body for containing asphalt and rubber particles, wherein the top of the cylinder body is provided with an asphalt inlet, a rubber particle inlet, a waveguide tube and a stirring motor, and the stirring motor drives a stirring shaft in the cylinder body to rotate through a speed reducer; the bottom of the cylinder body is provided with a material output device, and the upper part of the cylinder body is provided with an exhaust pipe; the side wall of the cylinder body is provided with an ultrasonic vibration device.
2. The rubber powder desulfurization apparatus for rubber asphalt production according to claim 1, characterized in that: the speed reducer is a coaxial double-output planetary gear speed reducer, the output shaft of the speed reducer is of a coaxial double-output structure, the output shaft is coaxially fixed with the stirring shaft, the stirring shaft comprises an inner shaft and an outer shaft which are different in rotation direction, the lower part of the inner shaft extends to the lower part of the outer shaft, and the lower end of the outer shaft is provided with an end cover and is in running fit with the inner shaft through a bearing; the outer shafts and the outer walls of the lower ends of the inner shafts are provided with paddles.
3. The rubber powder desulfurization apparatus for rubber asphalt production according to claim 2, characterized in that: the stirring motors are multiple and the rotating directions of the adjacent stirring motors are opposite.
4. The rubber powder desulfurization apparatus for rubber asphalt production according to claim 1, characterized in that: the inner wall of barrel is equipped with temperature-detecting device, temperature-detecting device is including the pulse ultrasonic emission device and the ultrasonic receiving device that the symmetry set up on the barrel lateral wall, ultrasonic receiving device can receive the pulse signal that pulse ultrasonic emission device sent to can detect the required time of pulse signal passing inside rubber powder asphalt mixture, utilize the conduction velocity of ultrasonic wave in rubber powder asphalt mixture inside to detect the pitch temperature.
5. The rubber powder desulfurization equipment for rubber asphalt production according to claim 4, characterized in that: the process that the temperature detection device detects the temperature of the materials in the cylinder is as follows:
the formula for obtaining the change of the conduction velocity of the ultrasonic wave in the asphalt along with the temperature by fitting the velocity and temperature data is
v＝a(T-10)2+b(T-10)+1506 (1)
In the formula (1), a is a quadratic coefficient of temperature, and the value range is-0.04 to-0.032;
b is a first-order coefficient of temperature, and the value range is 4.32-4.86;
v is the conduction velocity of the ultrasonic waves, unit m/s;
t is the temperature of the mixed liquid of the rubber powder asphalt and the unit;
wherein, the conduction velocity of the ultrasonic wave also satisfies the following formula:
v＝S/t (2)
in the formula (2), S is the distance between the pulse ultrasonic wave transmitting device and the ultrasonic wave receiving device and has a unit of m;
t is the time, unit s, required for the ultrasonic signal to be transmitted from the pulse ultrasonic wave transmitting device to the ultrasonic wave receiving device to receive the ultrasonic signal.
Temperature-detecting device can measure ultrasonic signal transmission and arrive the time t that receives ultrasonic signal and need, substitutes in formula (1) and formula (2), obtains the interior rubber powder pitch mixture temperature formula of barrel as follows:
6. the rubber powder desulfurization apparatus for rubber asphalt production according to claim 1, characterized in that: the exhaust pipe is connected with the gas recovery device through an air pump, a gas return pipe is arranged at the bottom of the gas recovery device, and the gas return pipe is connected with the barrel through a gas shunt.
7. The rubber powder desulfurization equipment for rubber asphalt production according to claim 6, characterized in that: and a gas detection device is arranged on the exhaust pipe and is arranged between the cylinder body and the air pump.
8. The rubber powder desulfurization apparatus for rubber asphalt production according to claim 1, characterized in that: the ultrasonic vibration device comprises an ultrasonic vibrator and an ultrasonic generator, wherein the ultrasonic vibrator is arranged on the outer wall of the cylinder body and is connected with the ultrasonic generator.
9. The rubber powder desulfurization equipment for rubber asphalt production according to claim 3, characterized in that: a plurality of ultrasonic sensors arranged along the direction of the stirring shafts are arranged in the barrel, transmitters and receivers of the ultrasonic sensors are respectively and correspondingly arranged on the inner walls of the top and the bottom of the barrel, and ultrasonic transmission lines formed by a plurality of groups of transmitters and receivers respectively correspond to a material area taking the stirring shafts as centers; when an ultrasonic sensor is used for detection, the stirring shaft stops rotating at a certain angle, so that the stirring blades on the stirring shaft do not influence the transmission of ultrasonic waves in the rubber powder asphalt mixed liquid;
the ultrasonic sensor generates a oscillogram on an oscilloscope, and whether the distribution of rubber powder in the asphalt medium is uniform or not is judged by comparing the time and the amplitude in a plurality of oscillograms; when the oscillogram shows that the amplitude of the head wave is smaller than that of the normal wave band, the frequency is unstable, and the amplitude of each wave band is obviously different, the distribution uniformity of rubber powder in the area is poor, and the stirring motor corresponding to the area is started and the stirring speed is accelerated.
10. A rubber powder devulcanizing apparatus for rubber asphalt production according to any one of claims 1 to 9, characterized in that: the material output device comprises a material discharge pipe and a screw conveyor, the material discharge pipe is connected with a discharge port at the bottom of the barrel through a pneumatic valve, and the discharge port of the material discharge pipe is connected with a feed port of the screw conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136809.3A CN113736137B (en) | 2021-09-27 | 2021-09-27 | Rubber powder desulfurization equipment for rubber asphalt production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136809.3A CN113736137B (en) | 2021-09-27 | 2021-09-27 | Rubber powder desulfurization equipment for rubber asphalt production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113736137A true CN113736137A (en) | 2021-12-03 |
| CN113736137B CN113736137B (en) | 2023-07-25 |
Family
ID=78741347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111136809.3A Active CN113736137B (en) | 2021-09-27 | 2021-09-27 | Rubber powder desulfurization equipment for rubber asphalt production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113736137B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150144480A1 (en) * | 2012-05-15 | 2015-05-28 | Exploiter Molybdenum Co., Ltd. | Industrial microwave ultrasonic reactor |
| CN111909529A (en) * | 2020-06-10 | 2020-11-10 | 北京克林泰尔环保科技有限公司 | Desulfurized waste tire rubber powder crosslinked modified asphalt and preparation method thereof |
| CN113121873A (en) * | 2021-05-06 | 2021-07-16 | 益路恒丰衡水沥青科技有限公司 | Rubber asphalt production equipment based on activated rubber powder |
| CN113232212A (en) * | 2021-05-08 | 2021-08-10 | 益路恒丰衡水沥青科技有限公司 | Rubber asphalt production equipment based on microwave heating |
-
2021
- 2021-09-27 CN CN202111136809.3A patent/CN113736137B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150144480A1 (en) * | 2012-05-15 | 2015-05-28 | Exploiter Molybdenum Co., Ltd. | Industrial microwave ultrasonic reactor |
| CN111909529A (en) * | 2020-06-10 | 2020-11-10 | 北京克林泰尔环保科技有限公司 | Desulfurized waste tire rubber powder crosslinked modified asphalt and preparation method thereof |
| CN113121873A (en) * | 2021-05-06 | 2021-07-16 | 益路恒丰衡水沥青科技有限公司 | Rubber asphalt production equipment based on activated rubber powder |
| CN113232212A (en) * | 2021-05-08 | 2021-08-10 | 益路恒丰衡水沥青科技有限公司 | Rubber asphalt production equipment based on microwave heating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113736137B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113736137A (en) | Rubber powder desulfurization equipment for rubber asphalt production | |
| CN113318623B (en) | Cleaning method and system of intensive mixer | |
| CN208699845U (en) | A kind of full-automatic charging gear | |
| CN2798612Y (en) | Food modifier | |
| CN201785012U (en) | Rubber powder flexible conveyer | |
| CN111690809A (en) | Dedusting ash cold ball forming production line | |
| CN208275370U (en) | Polyester resin solid material charging device | |
| CN103879732A (en) | Intelligent mixing and continuous conveying all-in-one machine for bulk material and liquid | |
| CN203842535U (en) | Self-absorption type mixer | |
| CN108144540A (en) | A kind of novel mixing device | |
| CN108579596A (en) | A kind of liquid material mixing apparatus | |
| CN211282212U (en) | Mineral powder bin capable of achieving quantitative discharging | |
| CN210994172U (en) | Heating and stirring device | |
| CN211612517U (en) | Magnetic powder mixing and conveying equipment | |
| CN107551931A (en) | A kind of three-dimensional motion mixed stirring device | |
| CN214687371U (en) | Formula of unloading fast banbury mixer | |
| CN208097880U (en) | A kind of multi-purpose type hybrid process all-in-one machine | |
| CN206731046U (en) | A kind of PP fire proofings prepare dosing machine | |
| CN219385041U (en) | Rubber desulfurization and de-crosslinking device | |
| CN215905468U (en) | Constant feeder is used in bio-organic fertilizer production | |
| KR200223250Y1 (en) | An apparatus for projecting an additive for a screw-corn type mixer | |
| CN219400020U (en) | Raw material melting device for processing carbon black dispersing agent | |
| CN221015509U (en) | Mixer structure with uniform feeding | |
| CN111300675A (en) | Raw material mixing device for modified plastics | |
| CN220386504U (en) | Oxygen release agent production system |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230627 Address after: 053411 east of Tuan Village, qingliangdian Town, Wuyi County, Hengshui City, Hebei Province Applicant after: Hengshui Hengfeng Yick Road Asphalt Science & Technology Co.,Ltd. Applicant after: Hebei Jiaotou Special Materials Technology Co.,Ltd. Address before: 053411 east of Tuan Village, qingliangdian Town, Wuyi County, Hengshui City, Hebei Province Applicant before: Hengshui Hengfeng Yick Road Asphalt Science & Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |