CN209816605U

CN209816605U - Asphalt mixture continuous production equipment with heat regeneration function

Info

Publication number: CN209816605U
Application number: CN201920168720.7U
Authority: CN
Inventors: 殷作耀; 高岱乐; 吴阿丽
Original assignee: Fujian Tietuo Machinery Co Ltd
Current assignee: Fujian Tietuo Machinery Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2019-12-20
Anticipated expiration: 2029-01-31

Abstract

The utility model provides an asphalt mixture continuous type production facility with heat regeneration function, including cold feed bin, band conveyer, stoving heating cylinder, the mixer, the pitch storage tank, mineral powder storehouse and finished product feed bin, cold feed bin is a plurality of and interval arrangement, several cold feed bin is equipped with the RAP raw materials, new aggregate has been installed in all the other cold feed bins, cold feed bin passes through continuous type belt weigher feed to band conveyer, band conveyer's discharge end is connected with the feed end of stoving heating cylinder through the belt weigher that gathers materials, stoving heating cylinder's discharge end is connected to the mixer, the pitch storage tank is connected with the mixer through continuous type pitch measurement conveyor, the mineral powder storehouse is connected with the mixer through continuous type powder transport metering device, the discharge end of mixer is connected to the finished product feed bin. The utility model discloses a can make the old and useless pitch on the RAP melt, with new aggregate primary mixing, prevent to add new pitch parcel on the old and useless pitch on RAP surface, improve bituminous mixture's stirring quality.

Description

Asphalt mixture continuous production equipment with heat regeneration function

Technical Field

The utility model relates to a pitch production facility technical field, more specifically say and indicate a bituminous mixture continuous type production facility with heat regeneration function.

Background

Asphalt mixture stirring equipment is generally divided into a batch type and a continuous type according to a stirring process. The measurement, stirring, the process of unloading of intermittent type formula bituminous mixture agitated vessel are intermittent type nature, generally according to certain stirring cycle circulation operation, and it has following advantage: 1. the intermittent metering process can ensure high metering precision; 2. the stirring uniformity can be ensured. However, the batch-type asphalt mixing plant also has the following disadvantages: 1. the intermittent equipment is influenced by the cycle due to the fact that complicated actions such as metering, discharging, re-metering and the like need to be performed intermittently, and the yield of the equipment is low; 2. in order to realize intermittent metering and stirring, mechanisms such as a buffer hopper, a metering hopper, a sensor, a discharge door and the like are required to ensure, so that the equipment structure is complex, and the manufacturing cost is higher; 3. the intermittent discharging process can cause the air pressure at the sealing position of the equipment to change intermittently, so that the environmental protection problems such as ash emission and the like are easily caused; 4. the raw materials are classified into a plurality of specifications when entering a factory, the raw materials are dried by the equipment and then screened again, the materials are mixed together again in the intermittent stirring cylinder, and if the quality problem of the raw materials is not considered, the process of repeated mixing and re-separation exists in the overall stirring process of the intermittent equipment, so that energy is wasted.

At present, continuous production equipment for asphalt recycled mixtures mainly adopts roller-type continuous stirring, namely, stirring blades are arranged in a drying roller, and asphalt, powder and the like are added into the drying roller to complete stirring while new aggregate and RAP are added into the drying roller for heating. The stirring mode is gravity stirring, the stirring uniformity is low, and the quality of the asphalt regeneration mixture obtained after stirring is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an asphalt mixture continuous production equipment with heat regeneration function, its main aim at overcome current asphalt mixture continuous production equipment and drop into new aggregate, RAP, pitch and powder simultaneously and stir in the drying drum, and its stirring uniformity is low, the not high grade shortcoming of quality of the asphalt regeneration mixture that obtains.

The utility model adopts the following technical scheme:

an asphalt mixture continuous production device with a thermal regeneration function comprises a cold material bin, a belt conveyor, a drying and heating roller, a stirrer, an asphalt storage tank, a continuous asphalt metering and conveying device, an ore powder bin, a continuous powder conveying and metering device and a finished product bin, wherein the cold material bin is a plurality of and arranged at intervals, a plurality of cold material bins are filled with RAP raw materials, other cold material bins are filled with new aggregates, each cold material bin is respectively fed to the belt conveyor through a continuous belt scale, the discharge end of the belt conveyor is connected with the feed end of the drying and heating roller through an aggregate belt scale, the discharge end of the drying and heating roller is connected to the stirrer, the asphalt storage tank is connected with the stirrer through the continuous asphalt metering and conveying device, the ore powder bin is connected with the stirrer through the continuous powder conveying and metering device, and the discharge end of the stirrer is connected to the finished product bin.

Furthermore, the discharge end of the drying and heating roller is connected with a combustion chamber, and a burner is arranged at one end of the combustion chamber, which is far away from the drying and heating roller.

Furthermore, the feed end of the drying and heating roller is connected with a dust remover through a waste gas discharge pipeline, the side surface of the waste gas discharge pipeline is also connected to the combustion chamber through a circulating pipeline, and an internal circulating fan is arranged on the circulating pipeline.

Further, the stirrer is a double-horizontal-shaft gravity-free stirrer.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

1. the utility model discloses an asphalt mixture continuous type generates equipment increases a stoving heating drum and dries simultaneously to RAP and new aggregate and heat and the initial mixing, then carries RAP and new aggregate after will heating the mixture to carry out continuous type stirring with the mixer, participates in the stirring with pitch, powder in the mixer simultaneously. The utility model discloses a can make the old and useless pitch on the RAP melt, with new aggregate primary mixing, prevent to add new pitch parcel on the old and useless pitch on RAP surface to influence the homogeneity of bituminous mixture stirring, improved bituminous mixture's stirring quality.

2. The mixture is continuously and forcibly stirred by adopting a double-shaft gravity-free stirrer, so that the stirring uniformity of the asphalt mixture can be improved.

3. By introducing the exhaust gases into the combustion chamber via a circulation duct, a desired heating medium which is adjustable can be obtained.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a block diagram of the process flow of the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details. Well-known components, methods and processes are not described in detail below.

An asphalt mixture continuous production device with a heat regeneration function, referring to fig. 1, comprises a cold storage bin 10, a belt conveyor 20, a drying and heating roller 30, a stirrer 40, an asphalt storage tank 50, a continuous asphalt metering and conveying device 60, a mineral powder bin 70, a continuous powder conveying and metering device 80 and a finished product storage bin 90. The plurality of cold storage bins 10 are arranged in parallel at intervals, wherein the plurality of cold storage bins 10 are filled with RAP raw materials, and the rest of the cold storage bins 10 are filled with new aggregates, and the number of the cold storage bins for filling the RAP raw materials and the new aggregates can be specifically distributed according to the grading requirement of the asphalt mixture.

Referring to fig. 1, each cooling bin 10 is respectively fed to a belt conveyor 20 through a continuous belt scale 11, the discharge end of the belt conveyor 20 is connected with the feed end of the drying and heating roller 30 through an aggregate belt scale 21, the discharge end of the drying and heating roller 30 is connected to the mixer 40, the asphalt storage tank 50 is connected with the mixer 40 through a continuous asphalt metering and conveying device 60, the ore powder bin 70 is connected with the mixer 40 through a continuous powder delivery and metering device 80, and the discharge end of the mixer 40 is connected to the finished product bin 90.

Referring to fig. 1, a discharge end of the drying and heating drum 30 is connected to a combustion chamber 31, and a burner 32 is disposed at an end of the combustion chamber 31 away from the drying and heating drum 30. A combustion chamber 31 is arranged between the burner 32 and the drying and heating roller 30, so that the condition that the flame of the burner 32 is contacted with RAP to cause aging can be avoided, and hot smoke combusted by the flame of the burner 32 in the combustion chamber 31 enters the drying and heating roller 30 to heat materials.

Referring to fig. 1, the feed end of the drying and heating drum 30 is connected to a dust collector 34 through an exhaust gas discharge pipe 33, the side surface of the exhaust gas discharge pipe 33 is further connected to the combustion chamber 31 through a circulation pipe 35, and an internal circulation fan 36 is disposed on the circulation pipe 35. The exhaust gases are led into the combustion chamber 31 using a circulation duct 35 to obtain a desired heating medium which is adjustable.

Referring to fig. 1, the mixer 40 is a double horizontal shaft gravity-free mixer, which is disposed parallel to a horizontal plane.

Referring to fig. 2, the new aggregate and RAP in the cold storage bin 10 of the utility model enter the drying and heating roller 30 for heating after being measured by the continuous belt weigher 11, and then enter the stirring machine 40 for continuous stirring through the conveying of the belt weigher, and simultaneously, the asphalt and the powder are respectively added into the stirring machine 40 after being measured by the continuous belt weigher for stirring.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides an asphalt mixture continuous production equipment with heat regeneration function which characterized in that: comprises a cold storage bin, a belt conveyor, a drying and heating roller, a stirrer, an asphalt storage tank, a continuous asphalt metering and conveying device, an ore powder bin, a continuous powder conveying and metering device and a finished product storage bin, the plurality of cold material bins are arranged at intervals, RAP raw materials are filled in the plurality of cold material bins, the rest cold storage bins are provided with new aggregates, each cold storage bin is respectively fed to the belt conveyer through a continuous belt scale, the discharge end of the belt conveyor is connected with the feed end of the drying and heating roller through a collecting belt scale, the discharge end of the drying and heating roller is connected to the stirrer, the asphalt storage tank is connected with the stirrer through a continuous asphalt metering and conveying device, the ore powder bin is connected with the stirrer through a continuous powder conveying and metering device, and the discharge end of the stirrer is connected to the finished product bin.

2. The continuous asphalt mixture production equipment with the thermal regeneration function as claimed in claim 1, wherein: the discharge end of the drying and heating roller is connected with a combustion chamber, and a burner is arranged at one end of the combustion chamber, which is far away from the drying and heating roller.

3. The continuous asphalt mixture production equipment with the thermal regeneration function according to claim 2, wherein: the feed end of the drying and heating roller is connected with a dust remover through a waste gas discharge pipeline, the side surface of the waste gas discharge pipeline is also connected to the combustion chamber through a circulating pipeline, and an internal circulating fan is arranged on the circulating pipeline.

4. The continuous asphalt mixture production equipment with the thermal regeneration function as claimed in claim 1, wherein: the stirrer is a double-horizontal-shaft gravity-free stirrer.