CN107177368B - Normal-pressure continuous thermal cracking system for waste tires - Google Patents
Normal-pressure continuous thermal cracking system for waste tires Download PDFInfo
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- CN107177368B CN107177368B CN201710588893.XA CN201710588893A CN107177368B CN 107177368 B CN107177368 B CN 107177368B CN 201710588893 A CN201710588893 A CN 201710588893A CN 107177368 B CN107177368 B CN 107177368B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
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Abstract
The invention provides a normal-pressure continuous thermal cracking system for waste tires, and belongs to the technical field of waste rubber thermal cracking equipment. The thermal cracking system comprises a thermal cracking host, a tire oil collecting system, a carbon black collecting system, a non-condensable gas power generation processing system and a power supply system; the method is characterized in that: the tire oil product of the thermal cracking main machine is collected through a tire oil collecting system, and the carbon black product is collected through a carbon black collecting system; the non-condensable gas is utilized or discharged after reaching the standard through a power generation system or a combustion device provided with a flue gas purification device, the power generated by the power generation system is used by the invention, and when the non-condensable gas power generation treatment system is stopped, the commercial power supplies power, and the combustion emission device reaching the standard is started.
Description
Technical Field
The invention belongs to the technical field of waste rubber thermal cracking equipment and processes, and particularly relates to a waste tire normal-pressure continuous thermal cracking system.
Background
At present, the waste tire thermal cracking recycling technology and equipment are all produced intermittently, belong to the generally-called 'soil refining' category, are seriously polluted, are difficult to realize large-scale and clean production, and are strictly prohibited by the country and stricken strictly. The normal pressure continuous thermal cracking process, technology and equipment of the waste tires and the waste rubber are still a worldwide problem. The stranding cage conveying device used in the prior art is in a single stranding cage form, is particularly easy to block in practical application, needs to be stopped and cleaned, and cannot be continuously produced. In addition, the prior art does not effectively utilize and detoxify the non-condensable gases produced during thermal cracking, which are about 10% of the total products. The direct discharge will seriously pollute the environment. No policy permission is obtained at all and it cannot be applied to actual production.
Disclosure of Invention
The invention aims to solve the problem of normal-pressure continuous thermal cracking of waste tires and waste rubber and provides a normal-pressure continuous thermal cracking system for waste tires.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the waste tire normal-pressure continuous thermal cracking system comprises a thermal cracking main machine, a tire oil collecting system, a carbon black collecting system, a non-condensable gas power generation processing system and a power supply system; the method is characterized in that: the tire oil product of the thermal cracking main machine is collected through a tire oil collecting system, and the carbon black product is collected through a carbon black collecting system; the non-condensable gas is utilized or discharged after reaching the standard through a power generation system or a combustion device provided with a flue gas purification device, the power generated by the power generation system is used by the invention, and when the non-condensable gas power generation treatment system is stopped, the commercial power supplies power, and the combustion emission device reaching the standard is started.
The thermal cracking host comprises a feeding device, a primary heating device, a secondary heating device and a cooling device, wherein the primary heating device comprises an upper layer primary heating device and a lower layer primary heating device; the upper primary heating device consists of an inner upper primary double-twisted cage device and an outer upper primary electromagnetic heating device; the secondary heating device is positioned below the primary heating device, a feed inlet of the secondary heating device is connected with a discharge outlet of the primary heating device, and the secondary heating device consists of an internal secondary double-twisted cage device and an external secondary electromagnetic heating device; the solid discharge hole of the secondary heating device is connected with the feed inlet of the cooling device;
the cooling device comprises an upper layer cooling device and a lower layer cooling device, the cooling device is composed of a single-stranded cage device, a discharge hole of the upper layer cooling device is connected with a feed inlet of the lower layer cooling device, a discharge hole of the lower layer cooling device is connected with a feed inlet of a discharge device, and a discharge hole of the discharge device is connected with a carbon black collecting device; air outlets are arranged at the upper part of the upper primary heating device and the upper part of the secondary heating device and are communicated with the tire oil collecting system; the tire oil collecting system comprises a gaseous substance collecting pipeline and a condensing device, wherein a discharge hole at the lower part of the condensing device is connected with a feed inlet of the oil collecting device; the upper gas outlet of the condensing device is connected with a non-condensable gas power generation treatment system;
the carbon black collecting system comprises a discharging device and a temporary carbon black storage container, and a feeding hole of the discharging device is connected with a discharging hole of the lower-layer cooling device; the discharge hole of the discharge device is connected with the feed inlet of the temporary carbon black storage container;
the non-condensable gas power generation treatment system comprises a sulfur removal device, a combustion standard-reaching discharge device and a power generation system; the desulfurization device comprises a primary desulfurization device, a secondary desulfurization device and a tertiary desulfurization device; the combustion emission device reaching the standard is started during the shutdown of the power generation system and comprises an anti-backfire device and a combustion device, a smoke exhaust pipeline of the combustion device is connected with a smoke purification device, and a feed inlet of the combustion device is communicated with an exhaust port of the three-stage desulphurization device after passing through the anti-backfire device; the power generation system comprises an internal combustion engine and a generator, and a smoke discharge port of the internal combustion engine is connected with a smoke purification device of the internal combustion engine;
the power supply system comprises an in-plant power supply network and a mains supply circuit, wherein the in-plant power supply network is powered by a generator, supplies power to the feeding device through a feeding device power access line, supplies power to the primary heating device through a primary heating device power access line, supplies power to the secondary heating device through a secondary heating device power access line, supplies power to the discharging device through a discharging device power access line, and supplies power to the cooling device through a cooling device power access line.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts the non-condensable gas power generation treatment system, so that non-condensable gas which accounts for about 10 percent of the total products and is generated in the thermal cracking process can be fully recycled, the energy is saved by 70 percent compared with the prior art, the pollution to the environment is reduced, the heating device adopts electromagnetic heating, the temperature of the heating device is uniform and stable, the problem of 'internal combustion' in the traditional intermittent process is solved, the traditional 'carbon slag' and 'carbon ash' are changed into 'regenerated carbon black' in the real sense, the actual comprehensive production cost of the normal-pressure continuous thermal cracking products is lower than that of oil refining by an earth method, and the fundamental basis of popularization and application is laid; the double twisting cage device is adopted to ensure that the twisting cage can be automatically cleaned in the process of material transmission without generating the phenomenon of twisting cage blockage, thereby realizing the real continuous and industrialized production. Therefore, the system realizes the recycling of waste gas, is environment-friendly and energy-saving, and is suitable for popularization and application.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of the structure of FIG. 1;
fig. 3 is a cross-sectional view B-B of the structure of fig. 1.
In the figure: 1-a feeding device; 2-power supply network in factory; 2-1, connecting a power supply of the feeding device with a wire; 2-primary heating device power supply access line; 2-3-a power supply access line of the secondary heating device; 2-4, a power supply access wire of the discharging device; 2-5, connecting a power supply of the cooling device with a wire; 3-gaseous substance collecting line; 4, a mains supply power supply circuit; 4-1-a power transformation chamber; 5-a condensing unit; 6, an oil collecting device; 7-sulphur removal unit; 7-1-first stage desulfurizing device; 7-2-secondary sulfur removal device; 7-3-a three-stage desulfurization device; 8-a combustion device; 9-a flue gas purification device; 10-anti-backfire device; 11-internal combustion engine flue gas purification device; 12-an internal combustion engine; 13-a generator; 14-temporary storage containers for carbon black; 15-a discharging device; 16-lower layer cooling device; 17-upper cooling device; 18-a secondary heating device; 18-1-two-stage electromagnetic heating device; 18-2-two stage double twisted cage device; 19-lower primary heating means; 19-1-lower primary electromagnetic heating means; 19-2 — lower primary double-twist cage device; 20-upper primary heating means; 20-1-upper primary electromagnetic heating device; 20-2-upper primary double twisted cage assembly.
Detailed Description
As shown in fig. 1, the system for normal pressure continuous thermal cracking of waste tires includes a thermal cracking main machine, a tire oil collecting system, a carbon black collecting system, a non-condensable gas power generation processing system, and a power supply system; the method is characterized in that: the thermal cracking host comprises a feeding device 1, a primary heating device, a secondary heating device and a cooling device, wherein the primary heating device comprises an upper primary heating device 20 and a lower primary heating device 19; as shown in fig. 2, the upper primary heating device 20 is composed of an inner upper primary double-twisted cage device 20-2 and an outer upper primary electromagnetic heating device 20-1; the secondary heating device 18 is positioned below the primary heating device, and the feeding hole of the secondary heating device is connected with the discharging hole of the primary heating device, as shown in fig. 3, the secondary heating device 18 is composed of an inner secondary double-twisted cage device 18-2 and an outer secondary electromagnetic heating device 18-1; the solid discharge hole of the secondary heating device 18 is connected with the feed hole of the cooling device;
the cooling device comprises an upper-layer cooling device 17 and a lower-layer cooling device 16, the cooling device is composed of a single-stranded cage device, a discharge hole of the upper-layer cooling device 17 is connected with a feed hole of the lower-layer cooling device 16, a discharge hole of the lower-layer cooling device 16 is connected with a feed hole of a discharge device 15, and a discharge hole of the discharge device 15 is connected with a carbon black collecting device 14; an air outlet is formed in the upper part of the upper primary heating device 20 and the upper part of the secondary heating device 18 and is communicated with the tire oil collecting system; the tire oil collecting system comprises a gaseous substance collecting pipeline 3 and a condensing device 5, wherein a discharge hole at the lower part of the condensing device 5 is connected with a feed inlet of an oil collecting device 6; an air outlet at the upper part of the condensing device 5 is connected with a non-condensable gas power generation treatment system;
the carbon black collecting system comprises a discharging device 15 and a carbon black temporary storage container 14, wherein a feeding hole of the discharging device 15 is connected with a discharging hole of a lower-layer cooling device 16; the discharge hole of the discharge device 15 is connected with the feed hole of the carbon black temporary storage container 14;
the non-condensable gas power generation treatment system comprises a sulfur removal device 7, a combustion standard-reaching discharge device and a power generation system; the desulfurization device 7 comprises a primary desulfurization device 7-1, a secondary desulfurization device 7-2 and a tertiary desulfurization device 7-3; the combustion emission device reaching the standard is started during the shutdown of the power generation system and comprises an anti-backfire device 10 and a combustion device 8, a smoke exhaust pipeline of the combustion device 8 is connected with a smoke purification device 9, and a feed inlet of the combustion device 8 is communicated with an exhaust port of a three-stage sulfur removal device 7-3 through the anti-backfire device 10; the power generation system comprises an internal combustion engine 12 and a generator 13, wherein a smoke discharge port of the internal combustion engine 12 is connected with an internal combustion engine smoke purification device 11;
the power supply system comprises a power supply network 2 in a plant and a mains supply power supply line 4, wherein the power supply network in the plant is supplied with power by a generator 13, and is respectively used for supplying power to a feeding device 1 through a feeding device power supply incoming line 2-1, supplying power to a primary heating device through a primary heating device power incoming line 2-2, supplying power to a secondary heating device 18 through a secondary heating device power incoming line 2-3, supplying power to a discharging device 15 through a discharging device power incoming line 2-4 and supplying power to a cooling device through a cooling device power incoming line 2-5.
The working process and principle are as follows:
when the invention works, firstly, the power transformation room 4-1 is connected with commercial power, the system is started, when the temperature of a heating device in the system rises to a certain temperature, thermal cracking raw materials are put in, at the same time, the thermal cracking raw materials are sent into an upper primary heating device 20 of the primary heating device by the feeding device 1, after primary heating, a double-twist-cage device in the feeding device sends the raw materials into a lower primary heating device 19 for continuous heating, then the raw materials are sent into a secondary heating device 18 by a lower primary double-twist-cage device 19-2 in the lower primary heating device 19, under the action of the secondary electromagnetic heating device 18-1, the thermal cracking raw materials are thermally cracked in the twisting motion of the secondary double-twist-cage device 18-2, generated gaseous substances are converged into a gaseous substance collecting pipeline 3 through an air outlet arranged at the upper part of the primary heating device and the secondary heating device 18, then the formed oil flows into an oil collecting device 6 after passing through a condensing device 5, formed non-condensable gas is sent into a sulfur removal device through a pipeline, the sulfur removal device is provided with two paths of output, one path is sent into a power generation system of an internal combustion engine, and the other path is connected into a combustion system through a valve. When the power generation system is normally started, the power transformation room 4-1 is switched to the power supply system in the plant, i.e., the generator 13 supplies power. And when the power generation system is in fault shutdown or maintenance shutdown, starting the combustion emission reaching the standard.
Claims (3)
1. The waste tire normal-pressure continuous thermal cracking system comprises a thermal cracking main machine, a tire oil collecting system, a carbon black collecting system, a non-condensable gas power generation processing system and a power supply system; the method is characterized in that: the thermal cracking main machine is provided with a raw material inlet, a gaseous product output port and a solid product output port, the gaseous product output port is connected with a condensing device, the condensing device is respectively connected with two output pipelines, one pipeline is a non-condensable gaseous combustible output pipeline, and the other pipeline is a tire oil output pipeline; the non-condensable gas state combustible output pipeline is connected with the non-condensable gas power generation processing system, meanwhile, a standard emission combustion system is arranged in parallel with the non-condensable gas power generation processing system, when the non-condensable gas power generation processing system needs to be shut down, the standard emission combustion system is started, and the non-condensable gas power generation processing system and the standard emission combustion system are both provided with smoke purification devices; the solid product output port is connected with a carbon black collecting system; the power supply system is connected with the non-condensable gas power generation processing system, the power supply system provides power for all power utilization equipment in the waste tire normal-pressure continuous thermal cracking system, meanwhile, the power supply system is connected with a commercial power supply network through a transformer room, the commercial power supply network serves as an initial starting power supply and a standby power supply, and the non-condensable gas power generation processing system provides power under normal conditions; the thermal cracking main machine comprises a feeding device (1), a primary heating device, a secondary heating device (18) and a cooling device; the discharge hole of the primary heating device is connected with the feed hole of the secondary heating device, and the discharge hole of the secondary heating device is connected with the feed hole of the cooling device; the air outlet is communicated with a tire oil collecting system; the primary heating device comprises an upper layer primary heating device (20) and a lower layer primary heating device (19), and air outlets are formed in the upper part of the upper layer primary heating device (20) and the upper part of the secondary heating device (18); the upper primary heating device (20) is composed of an inner upper primary double-twisted cage device (20-2) and an outer upper primary electromagnetic heating device (20-1), and the lower primary heating device (19) is composed of an inner lower primary double-twisted cage device (19-2) and an outer lower primary electromagnetic heating device (19-1); the tire oil collecting system comprises a gaseous substance collecting pipeline (3) and a condensing device (5), wherein a discharge hole at the lower part of the condensing device (5) is connected with a feed inlet of an oil collecting device (6); the upper gas outlet of the condensing device (5) is connected with a non-condensable gas power generation processing system; the carbon black collecting system comprises a discharging device (15) and a carbon black temporary storage container (14), wherein a feeding hole of the discharging device (15) is connected with a discharging hole of a lower-layer cooling device (16); the discharge hole of the discharge device (15) is connected with the feed hole of the carbon black temporary storage container (14); the secondary heating device (18) consists of an internal secondary double-twisted cage device (18-2) and an external secondary electromagnetic heating device (18-1); when the device works, a feeding device (1) sends thermal cracking raw materials into an upper primary heating device (20) of the primary heating device, after primary heating, a double-twisted-cage device in the feeding device sends the raw materials into a lower primary heating device (19) to be heated continuously, then a lower primary double-twisted-cage device (19-2) in the lower primary heating device (19) sends the raw materials into a secondary heating device (18), under the action of the secondary electromagnetic heating device (18-1), the thermal cracking raw materials are thermally cracked in twisting motion of the secondary double-twisted-cage device (18-2), generated gaseous substances are converged into a gaseous substance collecting pipeline (3) through gas outlets arranged at the upper parts of the primary heating device and the secondary heating device (18), and the formed oil flows into an oil collecting device (6) after passing through a condensing device (5).
2. The atmospheric continuous thermal cracking system for junked tires according to claim 1, which is characterized in that: the non-condensable gas power generation treatment system comprises a sulfur removal device (7), a combustion standard-reaching discharge device and a power generation system; the sulfur removal device (7) comprises a primary sulfur removal device (7-1), a secondary sulfur removal device (7-2) and a tertiary sulfur removal device (7-3); the combustion emission standard reaching device is started during the shutdown period of the power generation system and comprises an anti-backfire device (10) and a combustion device (8), a smoke exhaust pipeline of the combustion device (8) is connected with a smoke purification device (9), a feed inlet of the combustion device (8) is communicated with an exhaust port of a three-stage sulfur removal device (7-3) after passing through the anti-backfire device (10), the power generation system comprises an internal combustion engine (12) and a generator (13), and a smoke exhaust port of the internal combustion engine (12) is connected with the smoke purification device (11) of the internal combustion engine.
3. The atmospheric continuous thermal cracking system for junked tires according to claim 1, which is characterized in that: the power supply system comprises an in-plant power supply network (2) and a mains supply power supply line (4), wherein the in-plant power supply network is powered by a generator (13), supplies power to the feeding device (1) through a feeding device power supply access line (2-1), supplies power to the primary heating device through a primary heating device power access line (2-2), supplies power to the secondary heating device (18) through a secondary heating device power access line (2-3), supplies power to the discharging device (15) through a discharging device power access line (2-4), and supplies power to the cooling device through a cooling device power access line (2-5).
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| CN201710588893.XA CN107177368B (en) | 2017-07-19 | 2017-07-19 | Normal-pressure continuous thermal cracking system for waste tires |
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| CN201710588893.XA CN107177368B (en) | 2017-07-19 | 2017-07-19 | Normal-pressure continuous thermal cracking system for waste tires |
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| CN107177368B true CN107177368B (en) | 2022-10-18 |
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| CN114165314A (en) * | 2021-12-07 | 2022-03-11 | 威海泓创企业管理咨询有限公司 | Waste tire cracking non-condensable gas generator tail gas treatment device and method |
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| CN104387610A (en) * | 2014-11-11 | 2015-03-04 | 莒县华泰橡胶有限公司 | Pollution-free junked tire fragmentating system |
| CN105542867A (en) * | 2016-01-29 | 2016-05-04 | 潍坊金丝达新能源科技有限公司 | Resource gradient cracking system |
| CN106544050A (en) * | 2016-11-16 | 2017-03-29 | 河南沐桐环保产业有限公司 | The cyclic utilization system and its method of damaged tire |
| CN207452022U (en) * | 2017-07-19 | 2018-06-05 | 山西鑫邦国际橡塑科技开发有限公司 | The continuous thermal splitting system of waste tire normal pressure |
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2017
- 2017-07-19 CN CN201710588893.XA patent/CN107177368B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1706916A (en) * | 2004-06-07 | 2005-12-14 | 徐浩 | Technological process and apparatus for converting organic waste into regenerated energy source |
| CN103937526A (en) * | 2014-04-30 | 2014-07-23 | 辽阳县鼎理商贸有限公司 | Equipment for extracting oil by means of continuously thermally cracking waste tires at normal pressure |
| CN104387610A (en) * | 2014-11-11 | 2015-03-04 | 莒县华泰橡胶有限公司 | Pollution-free junked tire fragmentating system |
| CN105542867A (en) * | 2016-01-29 | 2016-05-04 | 潍坊金丝达新能源科技有限公司 | Resource gradient cracking system |
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Effective date of registration: 20171023 Address after: 044300 Shanxi city of Yuncheng province Pinglu County Economic Development Zone Maojin Applicant after: SHANXI XINBANG INTERNATIONAL RUBBER AND PLASTIC TECHNOLOGY DEVELOPMENT CO.,LTD. Applicant after: NINGXIA YINENG XINBANG INTERNATIONAL RUBBER & PLASTIC TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 044300 Shanxi city of Yuncheng province Pinglu County Economic Development Zone Maojin Applicant before: SHANXI XINBANG INTERNATIONAL RUBBER AND PLASTIC TECHNOLOGY DEVELOPMENT CO.,LTD. |
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Inventor after: Hu Kangfu Inventor after: Hu Xiaolin Inventor before: Hu Kangfu |
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Effective date of registration: 20191106 Address after: Room 1301, No. 132, Qingdao North Road, Huancui District, Weihai City, Shandong Province Applicant after: Weihai Qicheng Technology Development Co.,Ltd. Address before: 044300 Shanxi city of Yuncheng province Pinglu County Economic Development Zone Maojin Applicant before: SHANXI XINBANG INTERNATIONAL RUBBER AND PLASTIC TECHNOLOGY DEVELOPMENT CO.,LTD. Applicant before: NINGXIA YINENG XINBANG INTERNATIONAL RUBBER & PLASTIC TECHNOLOGY DEVELOPMENT CO.,LTD. |
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