CN211941622U - System for treating tyres - Google Patents
System for treating tyres Download PDFInfo
- Publication number
- CN211941622U CN211941622U CN202020319108.8U CN202020319108U CN211941622U CN 211941622 U CN211941622 U CN 211941622U CN 202020319108 U CN202020319108 U CN 202020319108U CN 211941622 U CN211941622 U CN 211941622U
- Authority
- CN
- China
- Prior art keywords
- outlet
- pyrolysis
- tire
- molten salt
- reactor body
- 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.)
- Expired - Fee Related
Links
- 150000003839 salts Chemical class 0.000 claims abstract description 89
- 239000002245 particle Substances 0.000 claims abstract description 85
- 238000000197 pyrolysis Methods 0.000 claims abstract description 85
- 238000003756 stirring Methods 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 15
- 239000003610 charcoal Substances 0.000 claims description 8
- 239000006148 magnetic separator Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 18
- 238000007885 magnetic separation Methods 0.000 description 11
- 239000010920 waste tyre Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 239000002296 pyrolytic carbon Substances 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010336 energy treatment Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a system for handle tire, include: take out steel wire machine, rubbing crusher, magnet separator, fused salt heating furnace, rubber granule conveyer pipe, cyclone and pyrolytic reaction ware, pyrolytic reaction ware includes: the reactor body is provided with a separated rubber particle inlet, a pyrolysis gas outlet and a pyrolysis carbon outlet; the stirring assembly comprises a stirring shaft and a propeller, the stirring shaft penetrates through the reactor body from top to bottom, the stirring shaft is of a hollow structure, a high-temperature molten salt inlet is formed in the stirring shaft extending out of the top end of the reactor body, the high-temperature molten salt inlet is connected with a heating molten salt outlet, and a low-temperature molten salt outlet is formed in the stirring shaft extending out of the bottom end of the reactor body; the screw is established in the reactor body, and the one end of screw is established on the (mixing) shaft, and the other end of screw is extended to reactor body inner wall direction by the stirring shaft, and the screw is hollow structure, and the (mixing) shaft communicates with the screw is inside.
Description
Technical Field
The utility model belongs to the pyrolysis field, concretely relates to system for handle tire.
Background
China is a big country for producing waste tires, and particularly, with the rapid development of the automobile industry, the yield of the waste tires in China is increased year by year. According to statistics, 2.33 million waste tires are produced in our country every year in 2009, and the weight of the waste tires is about 860 million tons. Compared with the waste tire treatment methods such as retreading, rubber powder treatment, regeneration, incineration and the like, the pyrolysis method has the defects of large waste tire treatment capacity, high benefit, small environmental pollution and the like, and better accords with the recycling, harmless and reduction principles of waste treatment. However, the existing tire pyrolysis device has the defects of low thermal efficiency, high equipment maintenance cost, complex process flow and the like, so that the tire treatment efficiency is low and the treatment cost is high.
Thus, the existing technology for processing tires is in need of improvement.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this reason, an object of the utility model is to provide a system for handling tire, adopt this system can show and improve tire pyrolysis efficiency to make energy consumption and treatment cost reduce by a wide margin.
In one aspect of the present invention, a system for processing a tire is provided. According to the utility model discloses an embodiment, the system includes:
the steel wire drawing machine is provided with a tire inlet, a steel wire outlet and a drawn tire outlet;
a shredder having a post-filament-drawing tire inlet and a tire particle outlet, the post-filament-drawing tire inlet being connected to the post-filament-drawing tire outlet;
the magnetic separator is provided with a tire particle inlet, a small-particle-size steel wire outlet and a rubber particle outlet, and the tire particle inlet is connected with the tire particle outlet;
the molten salt heating furnace is provided with a burner, a molten salt inlet, a heating molten salt outlet and a flue gas outlet;
one end of the rubber particle conveying pipe is connected with the smoke outlet and the rubber particle outlet;
the cyclone separator is provided with a rubber particle inlet, a separated flue gas outlet and a separated rubber particle outlet, and the rubber particle inlet is connected with the other end of the conveying pipe;
a pyrolysis reactor, the pyrolysis reactor comprising:
the reactor body is provided with a separated rubber particle inlet, a pyrolysis gas outlet and a pyrolysis carbon outlet, the separated rubber particle inlet is connected with the separated rubber particle outlet, and the pyrolysis gas outlet is connected with the burner;
a stirring assembly, the stirring assembly comprising:
the stirring shaft penetrates through the reactor body from top to bottom, is of a hollow structure, is provided with a high-temperature molten salt inlet extending out of the top end of the reactor body and connected with the heating molten salt outlet, and is provided with a low-temperature molten salt outlet extending out of the bottom end of the reactor body and connected with the molten salt inlet;
the screw, the screw is established in the reactor body, the one end of screw is established on the (mixing) shaft, the other end of screw by the stirring shaft is to reactor body inner wall direction extension, the screw is hollow structure, and the (mixing) shaft with the inside intercommunication of screw.
According to the system for processing the tire provided by the embodiment of the utility model, the tire is subjected to filament drawing, crushing and magnetic separation, steel wires in the tire can be effectively recovered, then the rubber particles obtained after the magnetic separation are conveyed to the cyclone separator by utilizing the flue gas and then are supplied into the pyrolysis reactor, the hollow stirring shaft and the screw are arranged in the pyrolysis reactor, and the heating molten salt is supplied in the stirring shaft and the screw, the molten salt carries out indirect heat exchange with the rubber particles in the reactor to carry out pyrolysis on the rubber particles, on one hand, the specific heat of the molten salt liquid is far greater than other heat carriers, the molten salt liquid can be used as the heat carrier to remarkably improve the heat transfer efficiency, thereby improving the rubber pyrolysis efficiency, on the other hand, the stirring shaft and the screw of the stirring assembly are arranged to be hollow structures, the screw of the stirring device can be used as the reaction space, meanwhile, the stirring component not only plays a dual role of stirring and heat conduction, but also has the function of propelling solid particles or paste to flow due to the rotation of the heat exchange surface. Therefore, the system can remarkably improve the tire pyrolysis efficiency and greatly reduce the energy consumption and the treatment cost.
In addition, the system for processing tires according to the above embodiment of the present invention may also have the following additional technical features:
preferably, the above system further comprises: the pyrolysis charcoal conveyer pipe, the one end of pyrolysis charcoal conveyer pipe with the pyrolysis charcoal export links to each other, the separation back exhanst gas outlet with the pyrolysis charcoal conveyer pipe links to each other.
Preferably, the separated rubber particle inlet is connected with the separated rubber particle outlet through an inclined conveying pipe, and the inclination angle of the inclined conveying pipe is 45-80 degrees.
Preferably, the above system further comprises: the multilayer screw propellers are distributed along the longitudinal direction of the stirring shaft at intervals, each layer of screw propellers comprises at least two pairs of screw propellers, and the at least two pairs of screw propellers are arranged along the circumferential direction of the stirring shaft at intervals. Thereby, the rubber pyrolysis efficiency can be remarkably improved.
Preferably, the distance between two adjacent layers of the propellers is 50-500 mm.
Preferably, a spring is arranged at one end of the propeller close to the inner wall of the reactor body.
Preferably, the spring length is R/10-R/5, wherein R is the radius of the reactor body.
Preferably, the spring is telescopically displaceable no more than 1/3 of the length of the spring.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a system for processing tires according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a pyrolysis reactor in a system for processing tires according to one embodiment of the present invention;
FIG. 3 is a view of the structure A-A of the pyrolysis reactor of FIG. 2;
fig. 4 is a schematic flow diagram of a method for processing tires implemented by a system for processing tires according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and 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, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present invention, a system for processing a tire is provided. According to an embodiment of the present invention, referring to fig. 1 and 2, the system comprises: a steel wire drawing machine 100, a crusher 200, a magnetic separator 300, a molten salt heating furnace 400, a rubber particle conveying pipe 500, a cyclone separator 600 and a pyrolysis reactor 700.
According to an embodiment of the present invention, the steel cord extractor 100 has a tire inlet 101, a steel cord outlet 102 and a post-extraction tire outlet 103, and is adapted to extract steel cords in a tire. Therefore, the steel wires in the waste tires can be effectively recycled, and the influence of the steel wires on the subsequent rubber particle pyrolysis reaction is avoided.
According to the utility model discloses an embodiment, rubbing crusher 200 has tire entry 201 and tire granule export 202 after the drawing, and tire entry 201 links to each other with tire export 103 after the drawing, and is suitable for and smashes the tire after the steel wire of the above-mentioned removal that obtains to can obtain tire granule. Further, the tire particles may have a particle diameter of not more than 3 mm. Therefore, the rubber particles can be uniformly dispersed in the reaction space of the subsequent pyrolysis reactor, and the pyrolysis efficiency of the rubber particles can be obviously improved.
According to the utility model discloses an embodiment, magnet separator 300 has tire granule entry 301, small-size footpath steel wire export 302 and rubber granule export 303, and tire granule entry 301 links to each other with tire granule export 202, and is suitable for to carry out the magnetic separation to the tire granule that obtains after smashing to the iron wire that does not take out is separated, avoids the influence of follow-up in-process to pyrolytic reaction.
According to the utility model discloses an embodiment, fused salt heating furnace 400 has nozzle 401, fused salt entry 402, heating fused salt export 403 and exhanst gas outlet 404, and is suitable for to supply with the gas to the nozzle and burn the fused salt in to the fused salt heating furnace and carry out indirect heating, obtains heating fused salt (400 ~ 600 ℃) and flue gas (500 ~ 700 ℃). Specifically, the molten salt may be nitrate, chloride, fluoride, carbonate, sulfate, or other inorganic salts with low melting point, or a mixture of two or more inorganic salts in different proportions, and the molten salt is heated to a temperature above the melting point (400-600 ℃) in a molten salt furnace. If the molten salt is a mixed salt of a plurality of inorganic salts, the mixing ratio can be selected by those skilled in the art according to actual needs.
According to the utility model discloses an embodiment, rubber granule conveyer pipe 500's one end links to each other with exhanst gas outlet 404 and rubber granule export 303, and is suitable for the high temperature flue gas that utilizes in the fused salt heating furnace to produce and carries the rubber granule that above-mentioned magnetic separation in-process obtained. Specifically, through rubber conveying pipeline, send the rubber granule to in the cyclone to set up flow control valve on the rubber conveying pipeline, adjust conveying speed through flow control valve, make conveying speed control at 10 ~ 25m/s, and the wearing and tearing of pipeline can be accelerated to speed is too fast.
According to the utility model discloses an embodiment, cyclone 600 has rubber granule entry 601, separation back exhanst gas outlet 602 and separation back rubber granule export 603, and rubber granule entry 601 links to each other with rubber granule conveyer pipe 500's the other end, and is suitable for the mixture that contains rubber granule and flue gas that obtains above-mentioned rubber conveying pipeline to carry out gas-solid separation, obtains separation flue gas and separation back rubber granule.
In accordance with an embodiment of the present invention, referring to fig. 1-2, a pyrolysis reactor 700 includes a reactor body 71 and an agitation assembly 72.
According to the utility model discloses a specific embodiment, be equipped with separation back rubber granule entry 701, pyrolysis gas export 702 and pyrolytic carbon export 703 on the reactor body 71, separation back rubber granule entry 701 links to each other with separation back rubber granule export 603, pyrolysis gas export 702 links to each other with nozzle 401, and in this process, rubber granule heating takes place drying and carbonization pyrolysis reaction to 300 ℃ -500 ℃, reaction time 5min ~ 40min, and the pyrolysis gas of 350 ~ 450 ℃ of production sends into fused salt heating furnace heating fused salt. Because the pyrolysis gas is completely recycled as fuel gas, the energy sources such as natural gas and the like are not required to be additionally consumed by each ton of tires, the energy consumption is saved by more than 20 percent, and the residence time is shorter than that of other tire pyrolysis processes by more than 30 min. Specifically, referring to fig. 2, the reactor body 71 is arranged in a vertical structure, and a pyrolysis space 70 is formed therein, the inlet 701 for the separated rubber particles is arranged on the sidewall of the top of the reactor body 71, the outlet 702 for the pyrolysis gas is arranged at the top of the reactor body 71, and the outlet 703 for the pyrolysis carbon is arranged at the bottom of the reactor body 71.
According to the utility model discloses a still another embodiment, refer to fig. 2, stirring subassembly 72 includes (mixing) shaft 721 and screw 722, wherein, (mixing) shaft 721 top-down runs through inside reactor body 71, and (mixing) shaft 721 is hollow structure, be equipped with high temperature fused salt entry 704 on the (mixing) shaft 721 that stretches out reactor body 71 top, be equipped with low temperature fused salt export 705 on the (mixing) shaft 721 that stretches out reactor body 71 bottom, (mixing) shaft 721 rotates under agitator motor 724 drives, screw 722 is established in reactor body 71, the one end of screw 722 is established on (mixing) shaft 721, the other end of screw 722 is extended to reactor body 71 inner wall direction by (mixing) shaft 721, screw 721 is hollow structure, and (mixing) shaft 721 communicates with screw 722 is inside. Specifically, the heated molten salt obtained in the molten salt heating furnace 400 is supplied into the stirring shaft 721 of the hollow structure through the high-temperature molten salt inlet 704 on the stirring shaft 721 and enters the propeller 722 of the hollow structure from top to bottom, the propeller 722 and the rubber particles entering through the separated rubber particle inlet 701 perform contact heat exchange with the rotation of the stirring assembly 72, pyrolysis treatment is performed, the obtained pyrolysis gas is discharged through the pyrolysis gas outlet 702 arranged on the reactor body 71, and the obtained pyrolysis carbon is discharged from the pyrolysis carbon outlet 703 arranged at the bottom of the reactor body 71.
According to a specific example of the utility model, the (mixing) shaft 721 passes pyrolysis space 70 and extends reactor body 71 from reactor body 71 top center, and high temperature fused salt entry 201 is established in reactor body 71 top, and low temperature fused salt export 702 is established in (mixing) shaft 721 bottom to this low temperature fused salt export 702 links to each other with fused salt entry 402, is about to the low temperature fused salt after the heat transfer supply to the further heating retrieval and utilization in the fused salt heating furnace. Preferably, the high-temperature molten salt inlet 701 is connected with the stirring shaft 721 through a coupling (not shown), and the low-temperature molten salt outlet 702 is connected with the stirring shaft 721 through a coupling (not shown).
According to still another specific example of the present invention, referring to fig. 2, the reactor comprises a plurality of propellers 722, the propellers 722 are distributed along the vertical interval of the stirring shaft 721, so as to not only effectively improve the heat exchange area between the rubber particles and the molten salt, but also continuously stir the rubber particles, thereby improving the pyrolysis efficiency of the rubber particles. Preferably, the distance between two adjacent layers of propellers 722 is 50-500 mm. The inventor finds that if the distance between two adjacent layers of propellers is too large, the propeller blades are few, the heat transfer area is reduced, the economy of equipment is reduced, the propeller blades play a role in transferring heat and break up rubber particles, and therefore by adopting the arrangement mode, the rubber particles can be uniformly dispersed in the reactor body while the heat transfer area is improved, and the pyrolysis efficiency of the rubber particles is improved.
According to a further embodiment of the present invention, referring to fig. 2 and 3, a spring 723 is provided on the end of the propeller 722 adjacent to the inner wall of the reactor body 71. Specifically, one end of the spring 723 is welded on the propeller 722 and close to the end of the reactor body 71, and when the reactor body is subjected to thermal stress displacement due to high temperature, the spring can deform, couple and match the propeller of the stirring assembly with the reactor body through telescopic deformation, so that the problem that the propeller and the inner wall of the reactor body are scratched hard due to deformation of the reactor body is solved. Preferably, the fixed length L1 of the spring 723 is R/10-R/5 (R is the radius of the reactor body), the telescopic displacement of the spring 723 is determined according to the thermal deformation of the device, the optimal telescopic displacement is L2 is not higher than L1/3 (L1 is the fixed length of the spring), it should be noted that the fixed length of the spring can be understood as the length of the spring without external force, and the telescopic displacement of the spring can be understood as the compression distance of the spring under the external force, i.e. the difference between the length of the spring under the external force and the fixed length.
According to the system for processing the tire provided by the embodiment of the utility model, the tire is subjected to filament drawing, crushing and magnetic separation, steel wires in the tire can be effectively recovered, then the rubber particles obtained after the magnetic separation are conveyed to the cyclone separator by utilizing the flue gas and then are supplied into the pyrolysis reactor, the hollow stirring shaft and the screw are arranged in the pyrolysis reactor, and the heating molten salt is supplied in the stirring shaft and the screw, the molten salt carries out indirect heat exchange with the rubber particles in the reactor to carry out pyrolysis on the rubber particles, on one hand, the specific heat of the molten salt liquid is far greater than other heat carriers, the molten salt liquid can be used as the heat carrier to remarkably improve the heat transfer efficiency, thereby improving the rubber pyrolysis efficiency, on the other hand, the stirring shaft and the screw of the stirring assembly are arranged to be hollow structures, the screw of the stirring device can be used as the reaction space, meanwhile, the stirring component not only plays a dual role of stirring and heat conduction, but also has the function of propelling solid particles or paste to flow due to the rotation of the heat exchange surface. Therefore, the system can remarkably improve the tire pyrolysis efficiency and greatly reduce the energy consumption and the treatment cost.
Further, referring to fig. 1, the system further includes a pyrolytic carbon delivery pipe 800, one end of the pyrolytic carbon delivery pipe 800 is connected to the pyrolytic carbon outlet 703, and the separated flue gas outlet 602 is connected to the pyrolytic carbon delivery pipe 800, and is adapted to pneumatically deliver the pyrolytic carbon obtained in the pyrolysis reactor to downstream after the flue gas generated in the cyclone separation process is pressurized by a blower.
Further, referring to fig. 1, the separated rubber particle inlet 701 is connected to the separated rubber particle outlet 603 through an inclined duct 900, the separated rubber particles directly flow into the pyrolysis reactor body through the inclined duct, the angle α of the inclined duct is 45 to 80 degrees, and if the angle is too small, the possibility of material accumulation is generated.
For ease of understanding, the following description will be made of a method of processing a tire using the above-described system for processing a tire. According to an embodiment of the present invention, referring to fig. 4, the method includes:
s100: feeding a tire into a steel cord for drawing
In this step, the tire is fed into a steel cord and is drawn to obtain a drawn tire and steel cord. Therefore, the steel wires in the waste tires can be effectively recycled, and the influence of the steel wires on the subsequent rubber particle pyrolysis reaction is avoided.
S200: feeding the drawn tire to a pulverizer for pulverization
In this step, the drawn tire obtained as described above is supplied to a pulverizer and pulverized to obtain tire particles. Further, the tire particles may have a particle diameter of not more than 3 mm. Therefore, the rubber particles can be uniformly dispersed in the reaction space of the subsequent pyrolysis reactor, and the pyrolysis efficiency of the rubber particles can be obviously improved.
S300: feeding the tyre particles into a magnetic separator for magnetic separation
In the step, the obtained tire particles are supplied to a magnetic separator for magnetic separation to obtain small-particle-size steel wires and rubber particles, so that the influence on the pyrolysis reaction in the subsequent process is avoided.
S400: the fuel gas is supplied to the molten salt heating furnace through the burner nozzle to burn to heat the molten salt
In the step, fuel gas is supplied to a molten salt heating furnace through a burner to burn to heat the molten salt, and heated molten salt (400-600 ℃) and flue gas (500-700 ℃) are obtained. Specifically, the molten salt may be nitrate, chloride, fluoride, carbonate, sulfate, or other inorganic salts with low melting point, or a mixture of two or more inorganic salts in different proportions, and the molten salt is heated to a temperature above the melting point (400-600 ℃) in a molten salt furnace. If the molten salt is a mixed salt of a plurality of inorganic salts, the mixing ratio can be selected by those skilled in the art according to actual needs.
S500: supplying smoke to a rubber particle conveying pipe to convey rubber particles
In the step, the rubber particles obtained in the magnetic separation process are conveyed by high-temperature flue gas generated in a molten salt heating furnace. Specifically, through rubber conveying pipeline, send the rubber granule to in the cyclone to set up flow control valve on the rubber conveying pipeline, adjust conveying speed through flow control valve, make conveying speed control at 10 ~ 25m/s, and the wearing and tearing of pipeline can be accelerated to speed is too fast.
S600: the mixture containing the smoke and the rubber particles in the rubber particle conveying pipe is supplied to a cyclone separator for gas-solid separation
In the step, the mixture containing the flue gas and the rubber particles in the rubber particle conveying pipe is supplied to a cyclone separator for gas-solid separation to obtain separated flue gas and separated rubber particles, and the flue gas generated in the cyclone separation process is pressurized by a fan and then used for pneumatically conveying the pyrolytic carbon obtained in the pyrolysis reactor to downstream.
S700: feeding the separated rubber particles into a pyrolysis reactor for pyrolysis reaction by using heated molten salt, and feeding low-temperature molten salt and pyrolysis gas into a molten salt heating furnace
In the step, the rubber particles obtained after the separation are supplied to a pyrolysis reactor to carry out pyrolysis reaction by using the heated molten salt so as to obtain pyrolytic carbon, pyrolysis gas and low-temperature molten salt, and the low-temperature molten salt and the pyrolysis gas are supplied to the molten salt heating furnace. In the process, rubber particles are heated to 300-500 ℃ to carry out drying and carbonization pyrolysis reaction for 5-40 min, the generated pyrolysis gas at 350-450 ℃ is sent into a molten salt heating furnace to heat molten salt, and the low-temperature molten salt after heat exchange is supplied into the molten salt heating furnace to be further heated and recycled. Because the pyrolysis gas is completely recycled as fuel gas, the energy sources such as natural gas and the like are not required to be additionally consumed by each ton of tires, the energy consumption is saved by more than 20 percent, and the residence time is shorter than that of other tire pyrolysis processes by more than 30 min.
According to the method for processing the tire provided by the embodiment of the utility model, the tire is subjected to filament drawing, crushing and magnetic separation, steel wires in the tire can be effectively recovered, then the rubber particles obtained after the magnetic separation are conveyed to the cyclone separator by utilizing the flue gas and then are supplied into the pyrolysis reactor, the hollow stirring shaft and the screw are arranged in the pyrolysis reactor, and the heating molten salt is supplied in the stirring shaft and the screw, the molten salt carries out indirect heat exchange with the rubber particles in the reactor to carry out pyrolysis on the rubber particles, on one hand, the specific heat of the molten salt liquid is far greater than other heat carriers, the molten salt liquid can be used as the heat carrier to remarkably improve the heat transfer efficiency, thereby improving the rubber pyrolysis efficiency, on the other hand, the stirring shaft and the screw of the stirring assembly are arranged to be hollow structures, the screw of the stirring device can be used as the reaction space, meanwhile, the stirring component not only plays a dual role of stirring and heat conduction, but also has the function of propelling solid particles or paste to flow due to the rotation of the heat exchange surface. Therefore, the method can remarkably improve the tire pyrolysis efficiency and greatly reduce the energy consumption and the treatment cost.
It should be noted that the features and advantages described above with respect to the system for processing tires apply equally to the method for processing tires and are not described in detail here.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not to be limiting in any way.
Examples
The system is used for treating the waste tires, wherein the particle size of tire particles is not higher than 3mm, sodium chloride is adopted as molten salt, the conveying speed of a rubber particle conveying pipe is controlled to be 10-25 m/s, and the analysis data, the process operation parameters and the material balance of the waste tires are shown in tables 1-3. The pyrolysis yield of the tires obtained from table 3 after pyrolysis was greater than 60% (containing tar), the yield of carbon black was 37%, and the pyrolysis effect was good.
Table 1: analysis data of waste tyre
Table 2: operating parameters of the process
Table 3: material balance meter
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. A system for processing tires, comprising:
the steel wire drawing machine is provided with a tire inlet, a steel wire outlet and a drawn tire outlet;
a shredder having a post-filament-drawing tire inlet and a tire particle outlet, the post-filament-drawing tire inlet being connected to the post-filament-drawing tire outlet;
the magnetic separator is provided with a tire particle inlet, a small-particle-size steel wire outlet and a rubber particle outlet, and the tire particle inlet is connected with the tire particle outlet;
the molten salt heating furnace is provided with a burner, a molten salt inlet, a heating molten salt outlet and a flue gas outlet;
one end of the rubber particle conveying pipe is connected with the smoke outlet and the rubber particle outlet;
the cyclone separator is provided with a rubber particle inlet, a separated flue gas outlet and a separated rubber particle outlet, and the rubber particle inlet is connected with the other end of the rubber particle conveying pipe;
a pyrolysis reactor, the pyrolysis reactor comprising:
the reactor body is provided with a separated rubber particle inlet, a pyrolysis gas outlet and a pyrolysis carbon outlet, the separated rubber particle inlet is connected with the separated rubber particle outlet, and the pyrolysis gas outlet is connected with the burner;
a stirring assembly, the stirring assembly comprising:
the stirring shaft penetrates through the reactor body from top to bottom, is of a hollow structure, is provided with a high-temperature molten salt inlet extending out of the top end of the reactor body and connected with the heating molten salt outlet, and is provided with a low-temperature molten salt outlet extending out of the bottom end of the reactor body and connected with the molten salt inlet;
the screw, the screw is established in the reactor body, the one end of screw is established on the (mixing) shaft, the other end of screw by the stirring shaft is to reactor body inner wall direction extension, the screw is hollow structure, and the (mixing) shaft with the inside intercommunication of screw.
2. The system for processing tires according to claim 1, further comprising: the pyrolysis charcoal conveyer pipe, the one end of pyrolysis charcoal conveyer pipe with the pyrolysis charcoal export links to each other, the separation back exhanst gas outlet with the pyrolysis charcoal conveyer pipe links to each other.
3. The system for processing tires according to claim 1, wherein the inlet for separated rubber particles is connected to the outlet for separated rubber particles by an inclined duct, and the inclined duct has an inclination angle of 45 to 80 degrees.
4. The system for processing tires according to claim 1, further comprising: the propellers are arranged in multiple layers and are distributed at intervals along the longitudinal direction of the stirring shaft.
5. A system for handling tires according to claim 4, wherein the distance between two adjacent layers of the propellers is 50 to 500 mm.
6. A system for handling tires according to any one of claims 1 to 5, wherein the propeller is provided with a spring at an end thereof adjacent to the inner wall of the reactor body.
7. The system for processing tires according to claim 6, wherein the spring length is R/10 to R/5, where R is the radius of the reactor body.
8. The system for processing tires according to claim 7, wherein the spring is telescopically displaceable no more than 1/3 of the length of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020319108.8U CN211941622U (en) | 2020-03-13 | 2020-03-13 | System for treating tyres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020319108.8U CN211941622U (en) | 2020-03-13 | 2020-03-13 | System for treating tyres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211941622U true CN211941622U (en) | 2020-11-17 |
Family
ID=73179298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020319108.8U Expired - Fee Related CN211941622U (en) | 2020-03-13 | 2020-03-13 | System for treating tyres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211941622U (en) |
-
2020
- 2020-03-13 CN CN202020319108.8U patent/CN211941622U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210085224U (en) | Vertical reactor for fused salt pyrolysis sludge and system with vertical reactor for treating sludge | |
| CN101307151B (en) | Apparatus for treating waste and old tyres | |
| CN107298983A (en) | A kind of new damaged tire Continuous Heat cleavage method | |
| CN101905186A (en) | Cooling Raymond mill and preparation method of powder for pressing graphite products | |
| CN104357077A (en) | Horizontal type screw rod structure cracking furnace for waste tire resource recycling | |
| CN211941622U (en) | System for treating tyres | |
| CN204125425U (en) | A kind of horizontal screw structure pyrolyzer for damaged tire resource reclaim | |
| CN106635114B (en) | Waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction in fluidized state | |
| CN212457832U (en) | Vertical roller grinding system with bilateral air supply | |
| CN105399346B (en) | A kind of process units of lime, coke coproduction of calcium carbide | |
| CN113386283A (en) | System and method for processing tyres | |
| CN206720749U (en) | The system that activated carbon is prepared using junked tire | |
| CN110846063A (en) | High-efficient processing system of junked tire micelle | |
| CN103289449A (en) | Method for integrated production of carbon black and white carbon black | |
| CN111847822A (en) | Vertical reactor for fused salt pyrolysis sludge and system with vertical reactor for treating sludge | |
| CN1498279A (en) | Byproduct sludge recycling apparatus in ironmaking system | |
| CN106566293B (en) | A kind of manufacturing technologies of carbon black | |
| CN112080307B (en) | Special rotary rake roller for waste tire pyrolysis reaction furnace | |
| CN212799657U (en) | Whitening device is calcined in likepowder suspension of black talc | |
| CN210065653U (en) | Cracking equipment for rubber particle and electronic garbage cracking oil refining | |
| CN113503722A (en) | Drying device and drying method for multi-heat-source coupled heating lump ore | |
| CN206204385U (en) | A kind of reduction reaction system of the aqueous pelletizing of lateritic nickel ore | |
| CN206395837U (en) | Prepare the polygenerations systeme of calcium carbide and carbon black | |
| CN206692993U (en) | A kind of asphalt regenerative device | |
| CN101608130A (en) | A kind of anti-coking process and automatic coke cleaning equipment of oiling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |