CN217710195U - Asphalt reclaimed material recovery device - Google Patents

Asphalt reclaimed material recovery device Download PDF

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Publication number
CN217710195U
CN217710195U CN202221463416.3U CN202221463416U CN217710195U CN 217710195 U CN217710195 U CN 217710195U CN 202221463416 U CN202221463416 U CN 202221463416U CN 217710195 U CN217710195 U CN 217710195U
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China
Prior art keywords
belt
bin
weighing transmitter
reclaimed materials
transmitter
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CN202221463416.3U
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Chinese (zh)
Inventor
解祥荣
李�灿
樊右文
袁刚强
胡鹏
张新宇
倪浩越
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Xuzhou XCMG Maintenance Machinery Co Ltd
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Xuzhou XCMG Maintenance Machinery Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1063—Controlling the operations
    • 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
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The utility model discloses a pitch reclaimed materials recovery unit belongs to pitch production technical field, aims at solving the in-process that traditional old and useless pitch reclaimed materials generated the reclaimed materials, the extravagant fuel of production, the cost, the quality and the safety scheduling problem of increase. The recovery device comprises a hopper, a lifter, a regeneration roller, a transition bin, a metering bin and an asphalt stirrer; a belt frequency converter and a belt weighing transmitter are arranged on the conveying belt at the bottom of the hopper; a transition bin weighing transmitter is arranged on the transition bin; a metering bin weighing transmitter is arranged on the metering bin; the belt frequency converter, the belt weighing transmitter, the transition bin weighing transmitter and the metering bin weighing transmitter are connected with the controller, so that the automatic control of the reclaimed material feeding amount is realized, the feeding efficiency and accuracy are improved, and the quality of reclaimed materials is ensured; and the automatic control is adopted to reduce the human intervention and ensure the safety of the operating personnel.

Description

Asphalt reclaimed material recovery device
Technical Field
The utility model relates to a pitch reclaimed materials recovery unit belongs to pitch production technical field.
Background
As our country builds asphalt pavement from the end of the last century, the use performance of asphalt pavement begins to decline with the passage of time, and a lot of asphalt solid waste is generated, which not only occupies land, but also causes environmental pollution if being randomly stacked or discarded. The asphalt recycling station heats the crushed and screened waste milling recycled asphalt pavement material, and then mixes and stirs the heated waste milling recycled asphalt material, the new aggregate, the new powder material, the recycling agent and the like, and the generated recycled material is mainly used for paving a road base layer or a surface layer below the surface layer and the like, so that the waste can be changed into valuable.
In the production process of the asphalt reclaimed materials, due to different order proportions, the use amount of the reclaimed materials needs to be adjusted at any time, so that the balance failure of a feeding system and a thermal system can be caused. At present, the feeding amount and the load of a burner are manually adjusted by operators according to experience in the industry, so that the quality of the produced asphalt reclaimed material is unstable; in addition, manual adjustment increases operating energy of the operator, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a pitch reclaimed material recovery unit, can improve the quality of production pitch reclaimed material, fuel saving simplifies operating personnel's operating procedure, guarantees the safety of operator and equipment in the production process.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a device for recovering asphalt reclaimed materials, which comprises a hopper, a lifting machine, a regeneration roller, a transition bin, a metering bin and an asphalt stirrer; the hopper is arranged on one side of the hoister; a regeneration roller is arranged at the top of the other side of the elevator; the bottom of one end of the regeneration roller is sequentially provided with a transition bin, a metering bin and an asphalt stirrer from top to bottom; the other end of the regeneration roller is provided with a burner; a conveying belt is arranged at the bottom of the hopper, and a belt frequency converter and a belt weighing transmitter are arranged on the conveying belt;
a transition bin weighing transmitter is arranged on the transition bin; a metering bin weighing transmitter is arranged on the metering bin; the belt frequency converter, the belt weighing transmitter, the transition bin weighing transmitter and the metering bin weighing transmitter are connected with the controller.
Furthermore, a tail gas temperature monitor and a discharge temperature monitor are arranged on the discharge end of the regeneration roller.
Further, the controller is connected with a computer; the controller comprises a PLC controller.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
in order to improve the quality of the reclaimed asphalt and the safety of the whole production process, the utility model discloses the reclaimed asphalt recycling device that is provided includes hopper, lifting machine, regeneration cylinder, transition bin, measuring bin, asphalt stirrer, and is connected with the computer through belt frequency converter, belt weighing transmitter, transition bin transmitter, measuring bin transmitter, and realizes the automatic control reclaimed asphalt loading volume, improves loading efficiency and accuracy, thereby guarantees the quality of reclaimed asphalt; the automatic control reduces the human intervention and ensures the safety of the operating personnel; a common computer is used as a control core, the collected weight and temperature data are analyzed and calculated, various parameters can be modified and stored, and the operation is convenient and rapid.
Drawings
FIG. 1 is a structural diagram of a reclaimed asphalt recycling device provided by an embodiment of the utility model;
fig. 2 is a flow chart of a method for controlling recycled asphalt material according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a method for controlling recycled asphalt material according to an embodiment of the present invention;
fig. 4 is a logic judgment flowchart of a method for controlling recycled asphalt material according to an embodiment of the present invention;
in the figure: 1. a hopper; 2. a hoist; 3. a regeneration drum; 4. a transition bin; 5. a metering bin; 6. an asphalt stirrer; 7. a burner; 8. a belt frequency converter; 9. a belt weight transmitter; 10. a transition bin weighing transmitter; 11. a measuring bin weighing transmitter; 12. a controller; 13. a conveyor belt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The first embodiment is as follows:
referring to fig. 1, the utility model provides a pitch reclaimed material recovery device, which comprises a hopper 1, a conveying belt 13, a hoisting machine 2, a regeneration roller 3, a transition bin 4, a metering bin 5, a pitch stirrer 6 and a computer; a conveying belt 13 is arranged below the hopper 1 on one side of the hoister 2 and used for conveying the hopper 1; and the conveying belt 13 is provided with a belt frequency converter 8 and a belt weighing transmitter 9. The top of the elevator 2 is provided with a regeneration roller 3; a burner 7 is arranged at one end of the regeneration roller 3 and used for heating the reclaimed materials; a transition bin 4 is arranged at the bottom of the other end of the regeneration roller 3, namely the bottom of the discharge port, and is used for receiving the heated reclaimed materials; the metering bin 5 is arranged below the transition bin 4 and used for receiving and calculating reclaimed materials fed by the transition bin 4; the asphalt stirrer 6 is used for stirring the reclaimed materials fed by the metering bin 5; the transition bin 4 is provided with a transition bin weighing transmitter 10, and the metering bin 5 is provided with a metering bin weighing transmitter 11; the controller 12 is respectively connected with the belt weighing transmitter 9, the transition bin weighing transmitter 10, the metering bin weighing transmitter 11 and the belt frequency converter 8. And a discharge temperature detector and a tail gas temperature monitor are arranged at the discharge end of the regeneration roller 3.
Specifically, as shown in fig. 3, the belt frequency converter 8: the device is used for adjusting the speed of the belt and controlling the feeding amount; an exhaust gas temperature monitor: for obtaining a tail gas temperature signal of the burner 7; discharging temperature monitor: the device is used for acquiring a heated reclaimed material discharge temperature signal; the controller 12: signals acquired by the acquisition and processing belt frequency converter 8, the transition bin weighing transmitter 10, the metering bin weighing transmitter 11, the tail gas temperature monitor and the discharge temperature monitor are transmitted to the controller 12, and the controller 12 carries out regulation and control through data analysis and processing.
The millivolt voltage signal output by the belt weighing transmitter 9 is filtered, amplified and converted into a digital quantity signal, namely a weight signal through the signal transmitter, and the weight signal is transmitted to the controller 12 through RS-485 communication. The controller 12 calculates the target instantaneous flow of the reclaimed materials on the conveying belt 13 according to the order proportion, the production time of single-pot materials and the like, calculates the actual instantaneous flow of the reclaimed materials put on the conveying belt 13 from the hopper 1 according to the field weight signal, the speed signal and the flow calibration coefficient, inputs the target instantaneous flow and the actual instantaneous flow into the PID control at the same time, obtains a PID control signal for controlling the output frequency of the belt frequency converter 8 and timely adjusts the feeding amount of the reclaimed materials.
The computer receives the discharging temperature signal transmitted by the discharging temperature monitor of the regeneration roller 3 through the A/D module and receives the tail gas temperature signal transmitted by the tail gas temperature monitor through the temperature module; the analog signals of the weighing sensors of the transition bin 4 and the metering bin 5 are respectively transmitted to the A/D module by respective transmitters, and the A/D module transmits the analog signals to the computer.
The controller 12 respectively regulates and controls the alarm and the combustor 7 according to the received tail gas temperature signal and the discharge temperature signal. The computer can be used as the whole control core, and all the collected signals can be displayed and operated through a human-computer interaction interface. The controller 12 can also adopt a PLC controller, which has high reliability, strong anti-interference capability, perfect functions, strong applicability, easy learning and use, small design and construction workload of the device, convenient maintenance, easy reconstruction, small volume, light weight and low energy consumption.
The second embodiment:
referring to fig. 2 and 4, an embodiment of the present invention provides a method for controlling recycled asphalt material, where the method includes:
step 1:
collecting a weight signal and a speed signal of reclaimed materials of each conveying belt 13, a weight signal of reclaimed materials of the transition bin 4 and a weight signal of reclaimed materials of the metering bin 5; in addition, a tail gas temperature signal and a reclaimed material discharging temperature signal of the regeneration roller 3 are also collected; in addition, a computer is set with a tail gas high-temperature alarm value T of the regeneration roller 3Height ofAnd over-temperature cutoff value TSuper-super. The general high-temperature alarm value is set at about 140 ℃ and the overtemperature is setSetting the cutoff value at about 190 ℃; setting upper and lower limits M of reclaimed materials in a transition bin 4On the upper part、MLower partCoefficient of lower limit K1Can be set between 1 and 2, and the upper limit coefficient K2Can be set between 4 and 5 according to the actual production situation.
In the recovery device, a plurality of hoppers 1 are used for feeding, and a conveying belt 13 is driven to run by a belt motor. All be equipped with belt weighing sensor and belt weighing transmitter 9 on the conveyer belt 13 of each hopper 1 below for the reclaimed material weight signal of monitoring hopper 1 on conveyer belt 13, analog signal among the belt weighing sensor on the belt passes through belt weighing transmitter 9 and converts digital signal, weight signal promptly.
The belt frequency converter 8 is used for adjusting the speed of each conveying belt 13; the recovery device comprises a tail gas temperature monitor for outputting a tail gas temperature signal and a discharge temperature monitor for outputting a discharge temperature signal. The controller 12 receives the detection signal of the exhaust gas temperature detector and monitors the exhaust gas temperature in real time. The temperature of the tail gas is set to be T, THeight ofIs a high temperature alarm value, T, of the exhaust gas temperatureSuper-superThe over-temperature cutoff value of the tail gas temperature ensures the high-temperature alarm or over-temperature cutoff of the device. Tail gas temperature of THeight of＜T＜TSupermallyWhen the alarm is needed, high-temperature alarm is carried out; t > TSuper-superAnd performing overtemperature fire breaking. The controller 12 receives the detection signal of the discharging temperature monitor, monitors the discharging temperature of the regeneration roller 3 in real time, and ensures the quality of the reclaimed materials discharged by the regeneration roller 3.
According to production requirements and computer settings, obtaining the period t of each pot of produced regenerated materials, unit: s, amount of recycled material MChinese character huiThe unit: kg; the target instantaneous flow rate F of the reclaimed materials of each conveyor belt 13 in the reclaimed material supply process in the stable productionTargetThe method comprises the following steps:
Ftarget=MGo back toT, unit: kg/s;
calculating the target instantaneous flow of the reclaimed materials of each conveyor belt 13 comprises calculating the target instantaneous flow of the reclaimed materials of each conveyor belt 13 or calculating the target instantaneous flow of the reclaimed materials of the total conveyor belt 13, and calculating the target instantaneous flow of each conveyor belt 13 according to the distribution of the reclaimed materials of each conveyor belt 13.
Step 2:
the controller 12 calculates the actual instantaneous flow F of the reclaimed materials on each conveying belt 13 by combining the weight signal of the reclaimed materials on each conveying belt 13, the speed signal of each conveying belt 13 and the flow calibration coefficientIn fact(ii) a In order to ensure the production continuity and the metering accuracy, the weight of the reclaimed materials in the transition bin 4 is set to be an upper limit value and a lower limit value, and when the weight of the reclaimed materials is lower than the lower limit value or higher than the upper limit value, the controller 12 automatically adjusts the feeding amount, F, of the conveying belt 13Practice ofThe method comprises the following steps:
Fpractice of= kvQ, unit: kg/s;
wherein, FPractice ofRepresenting the actual instantaneous flow of reclaimed material for each conveyor belt 13; k is a flow calibration coefficient and can be obtained by real object calibration; v is the speed of the feeding conveyor belt 13, unit: m/s, respectively measuring and calculating corresponding linear speeds of 10Hz, 15Hz, 8230, 45Hz and 50Hz (or more thinning) output by the belt frequency converter 8, and converting signals from 0 to 50Hz into corresponding linear speeds v through a polyline function;
q is the load of the weighing section, unit kg/m, calculated as: q =2 (M)Conveying appliance-MBalance)/L，
MConveying applianceSignals (real-time load signals) representing the weight of the conveyor belt 13 and the reclaimed material, MWeighing scaleThe weight of the belt weigher (obtained by zero calibration of the belt weigher) is represented, and L is the length of an effective weighing section of the belt weigher;
substituting the Q calculation formula to obtain: fPractice of=2kv(MConveying appliance-MBalance)/L，
In order to ensure the continuity of production and the accuracy of measurement, a certain amount of reclaimed materials M should be ensured in the transition bin 4 during productionStableThe upper and lower limits may be set to MOn the upper part、MLower part(in kg) in the sense of being less than MLower partDuring the process, the material can be discharged unstably when the material is discharged to the metering bin 5, so that the metering precision is influenced; higher than MOn the upper partIn time, the transition bin 4 is easily overloaded and overfilled.
It is possible to set: mUpper part of=k1*MGo back to，MLower part=k2*MGo back toWherein k is1、k2The upper and lower limit coefficients can be determined by the customer according to production experience.
Additional calculation of MStableDeviation from upper and lower limits MUpper part of、MLower partValue M ofDeflectionUnit kg, when MStableBelow a lower limit MLower partWhen M is in contact withDeflection=MLower part-MStable(ii) a When M isStableAbove the upper limit MOn the upper partWhen M is in contact withDeflection=MStable-MOn the upper part。
When M isDeflection>When 0, the target instantaneous flow of the reclaimed materials on the conveying belt 13 needs to be adjusted in time, and in order to avoid frequent adjustment, the target instantaneous flow can be adjusted once at certain intervals, and the F calculated in the step 1TargetAs a base, adjusting the magnitude and offset MDeflectionIs in direct proportion.
And step 3:
the controller 12 refers to the actual instantaneous flow rate of the reclaimed materials of each conveyor belt 13 and the target instantaneous flow rate of the reclaimed materials of each conveyor belt 13, and controls the speed of the conveyor belt 13 to adjust the reclaimed material amount of the hopper 1 put on the conveyor belt 13 in time.
In the steps 1 and 2, the target instantaneous flow F of the reclaimed materials is calculatedTargetCalculating the target instantaneous flow F of each conveyor belt 13 according to the feeding distribution of the conveyor belt 13Object 1、FObject 2……FTarget n. While the controller 12 is responsive to the field weight signal MTransmission deviceCalculating the actual instantaneous flow F of each conveying belt 13 according to the speed v of the conveying belt 13 and the flow calibration coefficient kPractice 1、FPractice 2……FActual nThe target instantaneous flow and the actual instantaneous flow are simultaneously input into a PID program, and the output frequency of the belt frequency converter 8 on each conveying belt 13 is adjusted by utilizing a PID output signal, so that the feeding amount of the reclaimed materials is adjusted in time.
Meanwhile, when the feeding amount of the reclaimed materials is changed, the burner 7 arranged at one end of the regeneration roller 3 needs to be preset in advance, so that the discharge temperature of the reclaimed materials is controlled within a required range, generally controlled at about 120 ℃; the quality of the discharged material is ensured. In the production process, the order proportion is changed or the amount of the recovered materials in the transition bin 4 exceeds the upper limit and the lower limit, and the feeding amount and the load of the combustor 7 need to be adjusted in time until the feeding and the heating are balanced. The controller 12 calculates the total specific heat of the reclaimed materials according to the changed feeding flow and the discharge temperature of the regeneration roller 3, and calculates the actual oil supply and air supply of the combustor 7 by adding the heat loss, thereby presetting the actual oil supply and air supply in advance.
When the production task is close to the end, the computer calculates the required reclaimed material amount according to the remaining production task, if the reclaimed material amount reserved in the transition bin 4 can meet the final production, the reclaimed material feeding and the combustion of the combustor 7 can be stopped in advance, the material cleaning of the regeneration transition bin 4 after the production is finished is effectively avoided, and the purpose of saving the cost is achieved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (3)

1. A pitch reclaimed material recovery device is characterized by comprising a hopper, a lifter, a regeneration roller, a transition bin, a metering bin and a pitch stirrer; the hopper is arranged on one side of the hoister; a regeneration roller is arranged at the top of the other side of the elevator; the bottom of one end of the regeneration roller is sequentially provided with a transition bin, a metering bin and an asphalt stirrer from top to bottom; the other end of the regeneration roller is provided with a burner; a conveying belt is arranged at the bottom of the hopper, and a belt frequency converter and a belt weighing transmitter are arranged on the conveying belt;
a transition bin weighing transmitter is arranged on the transition bin; a metering bin weighing transmitter is arranged on the metering bin; the belt frequency converter, the belt weighing transmitter, the transition bin weighing transmitter and the metering bin weighing transmitter are connected with the controller.
2. The recycling device of asphalt recycling material according to claim 1, wherein the discharge end of the recycling drum is provided with a tail gas temperature monitor and a discharge temperature monitor.
3. The recycling apparatus for asphalt recycling material according to claim 1, wherein said controller is connected to a computer; the controller comprises a PLC controller.
CN202221463416.3U 2022-04-20 2022-06-13 Asphalt reclaimed material recovery device Active CN217710195U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2022104149880 2022-04-20
CN202210414988.0A CN114508024A (en) 2022-04-20 2022-04-20 Asphalt reclaimed material control method and asphalt reclaimed material recovery device

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CN202221463416.3U Active CN217710195U (en) 2022-04-20 2022-06-13 Asphalt reclaimed material recovery device

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CN102681482B (en) * 2012-05-23 2014-12-10 沈阳新一代信息技术有限公司 Device and method for monitoring aggregate metering process of forced intermittent asphalt stirring equipment
CN203393544U (en) * 2013-06-09 2014-01-15 江阴市鑫海公路机械材料有限公司 Recycling and allocating system of asphalt stirring equipment
CN104552609B (en) * 2014-12-08 2017-02-22 徐州徐工筑路机械有限公司 Formula setting quantity follow-up adjustment system and formula setting quantity follow-up adjustment method
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CN104790276B (en) * 2015-02-13 2017-04-12 徐州徐工筑路机械有限公司 Asphalt mixing station fuel oil consumption rate display system and control method thereof
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CN205935795U (en) * 2016-07-08 2017-02-08 山东省路桥集团有限公司 Pitch hot mix plant recycling blendes station and attaches building
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