CN214115436U

CN214115436U - Production system for producing carbon black from waste tires

Info

Publication number: CN214115436U
Application number: CN202023142685.3U
Authority: CN
Inventors: 彭江红; 赵基钢; 张元伟
Original assignee: Zhangjiagang Baihe Technology Co ltd
Current assignee: Zhangjiagang Baihe Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-03
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a production system of junked tire production carbon black, including being used for carrying out the preliminary treatment with the preliminary treatment equipment who separates metal class material and rubber class material to junked tire, a grinder for the rubber class material that obtains to the separation grinds, a burning reaction ware that is used for carrying out the heating arrangement that heats and is used for carrying out the pyrolysis to the rubber class material after the heating to the rubber class material after grinding, burning reaction ware is including the burning section that sets gradually, the larynx pipeline section, first reaction section, quench zone and second reaction section, connect air conduit and natural gas line on the burning section respectively, the larynx pipeline section is equipped with the charge door of the rubber class material after the heating, establish the quench boiler in the quench zone, connect on the second reaction section and be used for stopping the inlet tube of reaction with the water spray to the second reaction section. The production system is adopted to treat the waste tires, has extremely high reaction speed, can continuously react, is easier to operate, has higher efficiency, is more reliable and environment-friendly, and has wide application range.

Description

Production system for producing carbon black from waste tires

Technical Field

The utility model belongs to the technical field of solid useless processing, concretely relates to production system of scrap tire production carbon black.

Background

In recent years, with the development of the automobile industry and the transportation industry, the tire industry is rapidly developed, the yield of the rubber tire casing in 2019 in China reaches 84226.2 ten thousand according to the data of the national statistical administration, and the rubber tire casing is continuously increased at the speed of 1-3% per year. The presence of scrap tires not only occupies a large amount of land, but also poses a serious threat to the environment.

In the prior art, the waste tires are generally treated as fuel, and a large amount of carcinogenic substances, such as polycyclic aromatic hydrocarbon and the like, are generated in the process of directly burning the tires, so that serious environmental pollution is caused. The accumulation of the waste tires causes serious environmental pollution and waste of resources. The tyre mainly comprises rubber (including natural rubber and synthetic rubber), carbon black and various organic and inorganic auxiliary agents (including plasticizers, anti-aging agents, sulfur, zinc oxide and the like), and the rubber material, the carbon black and the like in the tyre have high recycling value.

The pyrolytic carbon black produced by the traditional pyrolysis method has poor performance and high ash content, can not be used as commercial carbon black again, and can only be used in occasions with low requirements on the quality of the carbon black, such as conveyor belt rubber, sole rubber and the like. For example, chinese patent CN207483674U discloses an apparatus for preparing industrial carbon black from waste tires, which includes a pyrolysis device, an oil-gas separation system, a waste gas purification system, and a crude carbon black purification system, wherein an oil-gas outlet of the pyrolysis device is communicated with an oil-gas inlet of the oil-gas separation system, a waste gas outlet of the pyrolysis device is communicated with a waste gas inlet of the waste gas purification system, and a crude carbon black outlet of the pyrolysis device is communicated with a crude carbon black inlet of the crude carbon black purification system. The pyrolysis temperature of the pyrolysis device in the patent is below 450 ℃, the obtained crude carbon black with low quality is obtained, further cracking is needed subsequently, and the quality of the crude carbon black is improved, however, the process of the method is complicated.

Disclosure of Invention

The utility model aims to solve the technical problem that to prior art's drawback, provide a production system of waste tire production carbon black of environmental protection, easily operation, carbon black quality are high.

For solving the technical problem, the utility model discloses a following technical scheme:

a production system for producing carbon black by using waste tires comprises a pretreatment device for pretreating the waste tires to separate out metal substances and rubber substances and a first grinding device for grinding the separated rubber substances, the production system also comprises a heating device for heating the ground rubber-like substance and a combustion reactor for pyrolyzing the heated rubber-like substance, the combustion reactor comprises a combustion section, a throat section, a first reaction section, a quenching section and a second reaction section which are arranged in sequence, the combustion section is respectively connected with an air pipeline for conveying air and a natural gas pipeline for conveying natural gas, the throat pipe section is provided with a charging hole of the heated rubber substance, the quenching section is internally provided with a quenching boiler, and the second reaction section is connected with a water inlet pipe used for spraying water to the second reaction section to terminate the reaction.

According to some implementation aspects of the utility model, production system still includes heat transfer device and filter equipment, heat transfer device has the heat source and imports and exports and the cold source is imported and exported, heat transfer device's heat source import and export respectively through the pipeline with second reaction section and filter equipment link to each other, heat transfer device connects on the air conduit just heat transfer device's cold source import and export respectively with the air conduit intercommunication, make air in the air conduit with the flue gas warp that second reaction section produced heat transfer device carries out the heat transfer with right the air preheats.

Furthermore, a connecting pipeline for conveying the filtered flue gas to the combustion section is connected between the filtering device and the combustion section.

Furthermore, the production system also comprises a collecting device for collecting the carbon black material obtained by filtering through the filtering device, a second grinding device for grinding the collected carbon black material, a granulating device for granulating the material ground by the second grinding device, a drying device for drying the granules prepared by the granulating device and an air separation device for air separating the material dried by the drying device.

According to some preferred and concrete embodiment of the utility model, set up between filter equipment and the collection device and be used for carrying the carbon black material that obtains filtering extremely collection device's conveyor, collection device with set up between the second grinder be used for with the carbon black material carry to the second grinder carries out the conveyor that grinds the processing, set up between second grinder and the prilling granulator be used for with the material after the grinding carry to the prilling granulator carries out the conveyor that granulates, set up between prilling apparatus and the drying device be used for with the granule is carried to drying device carries out dry conveyor, set up between drying device and the wind selector be used for with the material after the drying carry to the wind selector carries out the conveyor that the selection by winnowing was handled.

Further preferably, the conveying device between the filtering device and the collecting device is a screw conveyor, the conveying device between the collecting device and the second grinding device is a screw conveyor, the conveying device between the second grinding device and the granulating device is a screw conveyor, the conveying device between the granulating device and the drying device is a screw conveyor, and the conveying device between the drying device and the air separation device is a screw conveyor.

According to some preferred and specific embodiments of the present invention, the production system further comprises a carbon black storage tank for collecting carbon black obtained after the winnowing treatment by the winnowing device.

According to some implementation aspects of the utility model, set up flowmeter, valve and manometer on the air pipe respectively, last flowmeter, valve and the manometer of setting up respectively of natural gas line.

According to some implementation aspects of the utility model, the preliminary treatment equipment is including being used for carrying out the first separator of bead separation to the scrap tire, being used for carrying out kibbling reducing mechanism and being used for right the matrix that the bead separation obtained carries out metal and rubber separation to the material after the reducing mechanism is kibbling obtains the second separator of metal class material and rubber class material.

Further, a conveying device used for conveying the tire body to the crushing device for crushing is arranged between the first separating device and the crushing device, a conveying device used for conveying the crushed material to the second separating device for treatment is arranged between the crushing device and the second separating device, a conveying device used for conveying the rubber substance to the first grinding device for grinding is arranged between the second separating device and the first grinding device, a conveying device used for conveying the ground rubber substance to the heating device for heating is arranged between the first grinding device and the heating device, and a conveying device used for conveying the heated rubber substance to the combustion reactor for pyrolysis treatment is arranged between the heating device and the combustion reactor.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

adopt the utility model discloses a production system handles waste tire, and waste tire grinds to the micelle and carries to the throat section of combustion reactor after preheating after through the preliminary treatment, mixes with high-temperature gas, and combustion reaction generates the flue gas that contains carbon black, obtains the higher carbon black of quality through the aftertreatment after quenching and the further cooling of water spray. Adopt this combustion reactor to carry out high temperature pyrolysis treatment to the micelle, reaction temperature reaches 1250~1400 ℃, and the speed of pyrolytic reaction is very fast, can accomplish the reaction in 10s, avoids being heated uneven problem of traditional pyrolysis scheme, improves the quality of pyrolysis carbon black.

Adopt the utility model discloses a production system handles waste tire, because reaction rate is extremely fast, can react in succession, changes in operation and efficiency higher, and this production system is used for waste tire's processing on, more reliable, environmental protection, the range of application is wide.

Drawings

FIG. 1 is a schematic structural view of a production system for producing carbon black from waste tires according to an embodiment of the present invention;

in the figure: 1. a raw material bin; 2. a first separation device; 3. a crushing device; 4. a second separation device; 5. a first grinding device; 6. a heating device; 7. a combustion reactor; 7a, a combustion section; 7b, a throat section; 7c, a first reaction section; 7d, a quenching section; 7e, a second reaction section; 8. an air duct; 9. a natural gas pipeline; 10. a water inlet pipe; 11. a quench boiler; 12. a heat exchange device; 13. a filtration device; 14. connecting a pipeline; 15. a collection device; 16. a second grinding device; 17. a granulation device; 18. a drying device; 19. a winnowing device; 20. a carbon black storage tank; 21. a flow meter; 22. a valve; 23. and a pressure gauge.

Detailed Description

The invention is further described below with reference to the drawings in the specification:

the production system for producing carbon black by using waste tires as shown in fig. 1 comprises a raw material bin 1 for storing the waste tires and a pretreatment device for pretreating the waste tires to separate metal substances and rubber substances, wherein the pretreatment device comprises a first separation device 2 for separating the tire beads of the waste tires, a crushing device 3 for crushing tire bodies obtained by separating the tire beads, a second separation device 4 for separating metal and rubber from materials crushed by the crushing device 3 to obtain the metal substances and the rubber substances, and metal such as steel rings obtained by separating the first separation device 2 and metal such as steel wire fibers obtained by separating the second separation device 4 are recycled.

The production system further comprises a first grinding device 5 used for grinding the rubber substances obtained by separation, a heating device 6 used for preheating the ground rubber substances and a combustion reactor 7 used for pyrolyzing the heated rubber substances, wherein the combustion reactor 7 comprises a combustion section 7a, a throat section 7b, a first reaction section 7c, a quenching section 7d and a second reaction section 7e which are sequentially arranged, the combustion section 7a is respectively connected with an air pipeline 8 used for conveying air and a natural gas pipeline 9 used for conveying natural gas, a heating port for heating the rubber substances is arranged on the throat section 7b, a quenching boiler 11 is arranged in the charging section 7d, and the second reaction section 7d is connected with a water inlet pipe 10 used for spraying water into the second reaction section 7d to terminate the reaction. The first grinding device 5 grinds the rubber substances into single-particle sizing materials with the particle size of less than or equal to 3mm, so that the single-particle sizing materials can be heated uniformly, continuous feeding is facilitated, and the quality of finished carbon black is improved. The single-particle rubber material is fed in the throat pipe section 7b, and is subjected to combustion reaction with high-temperature gas in the combustion reactor 7 at 1250-1400 ℃, the retention time is 0.5-10 s, the pyrolysis reaction rate is very high, the reaction can be completed within 10s, and the continuous reaction is realized.

In this example, a conveying device (screw conveyor) for conveying the separated tire body to the crushing device 3 to crush the tire body is provided between the first separating device 2 and the crushing device 3, a conveying device (screw conveyor) for conveying the crushed material to the second separating device 4 to process the crushed material is provided between the crushing device 3 and the second separating device 4, a conveying device (screw conveyor) for conveying the rubber material to the first grinding device 5 to grind the rubber material is provided between the second separating device 4 and the first grinding device 5, a conveying device (screw conveyor) for conveying the ground rubber material to the heating device 6 to heat the rubber material is provided between the first grinding device 5 and the heating device 6, a conveying device (screw conveyor) for conveying the heated rubber material to the combustion reactor 7 to perform pyrolysis treatment is provided between the heating device 6 and the combustion reactor 7 (the conveying device is a screw conveyor).

The production system further comprises a heat exchange device 12, a filtering device 13, a collecting device 15 for collecting carbon black materials obtained by filtering of the filtering device 13, a second grinding device 16 for grinding the collected carbon black materials, a granulating device 17 for granulating the ground carbon black materials, a drying device 18 for drying carbon black particles prepared by the granulating device 17, an air separation device 19 for air separating the carbon black particles dried by the drying device 18 and a carbon black storage tank 20 for collecting the air separated carbon black particles, wherein the heat exchange device 12 is provided with a heat source inlet and a cold source outlet, the heat source inlet and the heat source outlet of the heat exchange device 12 are respectively connected with the second reaction section 7e and the filtering device 13 through pipelines, the heat exchange device 12 is connected to the air pipeline 8, the cold source inlet and the cold source outlet of the heat exchange device 12 are respectively communicated with the air pipeline 8, so that air in the air pipeline 8 and smoke generated by the second reaction section 7e are subjected to heat exchange through the heat exchange device 12 To preheat air, which is delivered to the combustion section 7 a; a connecting pipeline 14 for conveying the filtered flue gas to the combustion section 7a is connected between the filtering device 13 and the combustion section 7a, after the flue gas containing carbon black is filtered by the filtering device 13, the tail gas contains a large amount of combustible hydrocarbons, and the tail gas can be used as gas fuel after being collected and supplemented to the combustion section 7a, so that the use amount of natural gas is reduced; a conveying device (a screw conveyor) for conveying the carbon black material obtained by filtering to the collecting device 15 is arranged between the filtering device 13 and the collecting device 15, a conveying device (a screw conveyor) for conveying the carbon black material to the second grinding device 16 for grinding treatment is arranged between the collecting device 15 and the second grinding device 16, a conveying device (a screw conveyor) for conveying the ground material to the granulating device 17 for granulating is arranged between the second grinding device 16 and the granulating device 17, a conveying device (a screw conveyor) for conveying the granules to the drying device 18 for drying is arranged between the granulating device 17 and the drying device 18, and a conveying device (a screw conveyor) for conveying the dried material to the air separation device 19 for air separation treatment is arranged between the drying device 18 and the air separation device 19.

In this example, the air pipe 8 and the natural gas pipe 9 are provided with a flow meter 21, a valve 22, and a pressure gauge 23, respectively.

The production system is adopted to treat the waste tire, the waste tire is firstly subjected to tire bead separation by the first separation device 2, the separated steel ring is recycled, the separated tire body is conveyed to the crushing device 3 to be crushed, then the second separation device 4 is used for separating the steel wire fibers by the strong magnet, the separated steel wire fibers are recovered, the separated rubber substances are ground by the first grinding device 5 and processed into colloidal particles with uniform particle size (the particle size is less than or equal to 3 mm), so that the heating is uniform, the continuous feeding is convenient, and the quality of the finished carbon black is improved; the colloidal particles enter a reactor from a throat pipe section 7b of the combustion reactor 7 to carry out combustion reaction at 1250-1400 ℃ for 0.5-10 s, the pyrolysis reaction rate is extremely high, the reaction can be completed within 10s, a quenching boiler 11 in the combustion reactor 7 carries out quenching on the gas, then the reaction is terminated by spraying cooling water, the cooled flue gas is filtered by a filter device 13 to obtain carbon black particles, the filtered tail gas contains a large amount of combustible hydrocarbons and can be used as gas fuel, and the gas fuel is supplemented to a combustion section 7a through a connecting pipeline 14, so that the consumption of natural gas is reduced; collecting carbon black particles obtained by filtering, and then sequentially grinding, granulating, drying and winnowing to obtain the finished product carbon black with good quality. After the treatment, the solid waste is reduced by over 95 percent.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A production system for producing carbon black from waste tires, which comprises a pretreatment device for pretreating waste tires to separate out metal substances and rubber substances and a first grinding device for grinding the separated rubber substances, and is characterized in that: the production system further comprises a heating device for heating the ground rubber substances and a combustion reactor for pyrolyzing the heated rubber substances, wherein the combustion reactor comprises a combustion section, a throat section, a first reaction section, a quenching section and a second reaction section which are sequentially arranged, the combustion section is respectively connected with an air pipeline for conveying air and a natural gas pipeline for conveying natural gas, the throat section is provided with a feed inlet for the heated rubber substances, the quenching section is internally provided with a quenching boiler, and the second reaction section is connected with a water inlet pipe for spraying water to the second reaction section to terminate the reaction.

2. The production system for producing carbon black from scrap tires according to claim 1, characterized in that: the production system further comprises a heat exchange device and a filtering device, the heat exchange device is provided with a heat source inlet and outlet and a cold source inlet and outlet, the heat source inlet and outlet of the heat exchange device are respectively connected with the second reaction section and the filtering device through pipelines, the heat exchange device is connected to the air pipeline, the cold source inlet and outlet of the heat exchange device are respectively communicated with the air pipeline, and therefore the air in the air pipeline and the flue gas generated by the second reaction section exchange heat through the heat exchange device to preheat the air.

3. The production system for producing carbon black from scrap tires according to claim 2, characterized in that: and a connecting pipeline for conveying the filtered flue gas to the combustion section is also connected between the filtering device and the combustion section.

4. The production system for producing carbon black from scrap tires according to claim 2, characterized in that: the production system further comprises a collecting device for collecting the carbon black materials obtained by filtering through the filtering device, a second grinding device for grinding the collected carbon black materials, a granulating device for granulating the materials ground by the second grinding device, a drying device for drying the particles prepared by the granulating device and an air separation device for air separating the materials dried by the drying device.

5. The production system for producing carbon black from scrap tires according to claim 4, characterized in that: the carbon black material drying device is characterized in that a conveying device used for conveying carbon black materials obtained through filtering to the collecting device is arranged between the filtering device and the collecting device, a conveying device used for conveying the carbon black materials to the second grinding device for grinding treatment is arranged between the collecting device and the second grinding device, a conveying device used for conveying the ground materials to the granulating device for granulating is arranged between the second grinding device and the granulating device, a conveying device used for conveying the particles to the drying device for drying is arranged between the granulating device and the drying device, and a conveying device used for conveying the dried materials to the winnowing device for winnowing treatment is arranged between the drying device and the winnowing device.

6. The production system for producing carbon black from scrap tires according to claim 5, characterized in that: the conveying device between the filtering device and the collecting device is a screw conveyor, the conveying device between the collecting device and the second grinding device is a screw conveyor, the conveying device between the second grinding device and the granulating device is a screw conveyor, the conveying device between the granulating device and the drying device is a screw conveyor, and the conveying device between the drying device and the air separation device is a screw conveyor.

7. The production system for producing carbon black from scrap tires according to claim 4, characterized in that: the production system also comprises a carbon black storage tank for collecting the carbon black obtained after the winnowing treatment of the winnowing device.

8. The production system for producing carbon black from scrap tires according to claim 1, characterized in that: the air pipeline is respectively provided with a flowmeter, a valve and a pressure gauge, and the natural gas pipeline is respectively provided with a flowmeter, a valve and a pressure gauge.

9. The system for producing carbon black from waste tires according to any one of claims 1 to 8, wherein: the pretreatment equipment comprises a first separation device for separating the tire bead of the waste tire, a crushing device for crushing the tire body obtained by separating the tire bead, and a second separation device for separating metal and rubber of the material crushed by the crushing device to obtain metal substances and rubber substances.

10. The production system for producing carbon black from scrap tires according to claim 9, characterized in that: the tire carcass grinding device is characterized in that a conveying device used for conveying tire carcasses to the crushing device for crushing is arranged between the first separating device and the crushing device, a conveying device used for conveying crushed materials to the second separating device for treatment is arranged between the crushing device and the second separating device, a conveying device used for conveying rubber substances to the first grinding device for grinding is arranged between the second separating device and the first grinding device, a conveying device used for conveying the ground rubber substances to the heating device for heating is arranged between the first grinding device and the heating device, and a conveying device used for conveying the heated rubber substances to the combustion reactor for pyrolysis treatment is arranged between the heating device and the combustion reactor.