CN110616078A - Solid material pyrolysis device and pyrolysis system comprising same - Google Patents
Solid material pyrolysis device and pyrolysis system comprising same Download PDFInfo
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- CN110616078A CN110616078A CN201911024941.8A CN201911024941A CN110616078A CN 110616078 A CN110616078 A CN 110616078A CN 201911024941 A CN201911024941 A CN 201911024941A CN 110616078 A CN110616078 A CN 110616078A
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- pyrolysis
- reaction kettle
- kettle
- transmission
- pyrolysis reaction
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 157
- 239000011343 solid material Substances 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 112
- 230000005540 biological transmission Effects 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 abstract description 27
- 239000004033 plastic Substances 0.000 abstract description 16
- 229920003023 plastic Polymers 0.000 abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004227 thermal cracking Methods 0.000 description 10
- 238000007790 scraping Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010920 waste tyre Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/44—Other processes in ovens with mechanical conveying means with conveyor-screws
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a solid material pyrolysis device and a pyrolysis system comprising the same, and belongs to the field of waste rubber and waste plastic recycling. The solid material pyrolysis device comprises a scraper type pyrolysis reaction kettle, an internal rotation type pyrolysis reaction kettle connected with the scraper type pyrolysis reaction kettle, a front sealing bin and a rear sealing bin which are arranged at two ends of the scraper type pyrolysis reaction kettle and communicated with the scraper type pyrolysis reaction kettle, wherein the scraper type pyrolysis reaction kettle is connected with the internal rotation type pyrolysis reaction kettle through the front sealing bin; the scraper type pyrolysis reaction kettle comprises a kettle body, a transmission driven wheel and a transmission driving wheel. The invention is applied to the aspect of waste rubber and waste plastic recovery treatment, solves the problem that the existing pyrolysis reaction kettle can not treat the waste rubber and the waste plastic at the same time, and has the characteristics of high pyrolysis efficiency, full reaction, less carbon deposition, strong applicability and high safety.
Description
Technical Field
The invention belongs to the field of waste rubber and waste plastic recycling and treatment, and particularly relates to a solid material pyrolysis device and a pyrolysis system comprising the same.
Background
With the rapid development of economic society in China, the increasingly serious pollution of solid materials such as waste tires and waste plastics causes serious pressure and damage to the ecological environment in China, and the black pollution caused by the treatment of the solid materials such as the waste tires and the waste plastics is not slow. At present, pyrolysis is often adopted to carry out pyrolysis treatment on solid materials such as waste tires and waste plastics. Thermal cracking units are mainly of two types: outer spiral pyrolysis reation kettle and interior spiral pyrolysis reation kettle, above-mentioned two kinds of reation kettle homoenergetic realize the pyrolysis treatment to solid material, realize the recovery to solid material to a certain extent simultaneously. However, any of the cracking reaction kettles has the problems of long reaction period, incomplete reaction, serious carbon deposition of equipment and the like.
Chinese patent CN 205633898U discloses a scraper chain mechanism of a device for continuously producing fuel oil from combustible domestic waste, which comprises: the active transmission devices are distributed at two end parts of the upper bed board panel and connected with a driving device, a movable bed board chain mechanism surrounding the upper bed board panel is arranged between the two active transmission devices, and the lower bed board panel distributed at the lower part of the upper bed board is arranged below the movable bed board chain mechanism; and the scraping plates are arranged on the movable bed board chain mechanism and used for scraping the upper surface of the upper layer bed board panel and the upper surface of the lower layer bed board panel. The scraper chain mechanism of the device for continuously producing the fuel oil from the combustible substances of the domestic garbage pushes the materials uniformly distributed on the upper surface of the upper-layer bed plate forward, simultaneously removes coking on the upper surface of the hot air bed, and conveys the materials which are not completely pyrolyzed to the upper surface of the lower-layer bed plate panel for continuous pyrolysis reaction. The movable bed board chain mechanism is provided with a chain tensioning device, and the tightness of the movable bed board chain mechanism is tensioned by the driven shaft tensioning mechanism through the driven transmission device; and the material inlet and the residue outlet are both located in the right end seal assembly of the device. The device improves the reaction efficiency to a certain extent and reduces the generation of carbon deposition.
However, the above scraper pyrolysis reactor has problems that the equipment is seriously coked, the reaction is insufficient, and continuous production cannot be realized when waste plastics are processed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the main problem that the conventional pyrolysis reaction kettle cannot simultaneously treat waste rubber and waste plastic, and provides a solid material pyrolysis device which has the advantages of high pyrolysis efficiency, full reaction, less carbon deposition, strong applicability and high safety on a mixture of the waste rubber and the waste plastic, and a pyrolysis system comprising the pyrolysis device.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows:
the invention provides a solid material pyrolysis device, which comprises a scraper type pyrolysis reaction kettle, an internal rotation type pyrolysis reaction kettle connected with the scraper type pyrolysis reaction kettle, a front sealing bin and a rear sealing bin, wherein the front sealing bin and the rear sealing bin are arranged at two ends of the scraper type pyrolysis reaction kettle and are communicated with the scraper type pyrolysis reaction kettle;
the scraper type pyrolysis reaction kettle comprises a kettle body, a transmission driven wheel and a transmission driving wheel;
an upper-layer hot air jacket is arranged on the outer side of the upper part of the kettle body, a lower-layer hot air jacket is arranged on the outer side of the lower part of the kettle body, and a middle-layer hot air jacket is arranged in the middle of the kettle body;
the transmission driven wheel and the transmission driving wheel are respectively positioned in the front sealed cabin and the rear sealed cabin, and a transmission chain surrounding the middle-layer hot air jacket is arranged between the transmission driven wheel and the transmission driving wheel.
Preferably, the front sealing bin is connected with the kettle body, and the rear sealing bin is connected with the kettle body through flanges.
Preferably, the scraper pyrolysis reaction kettle comprises an upper layer reaction kettle and a lower layer reaction kettle, wherein the upper layer hot air jacket is positioned in the upper layer reaction kettle, the lower layer hot air jacket and the middle layer hot air jacket are positioned in the lower layer reaction kettle, the scraper pyrolysis reaction kettle further comprises a first heating pipeline connected with the upper layer hot air jacket, and a second heating pipeline connected with the middle layer hot air jacket.
Preferably, the transmission chain is including being located upper drive chain in the upper reation kettle, and being located lower floor's drive chain in the lower floor's reation kettle, upper reation kettle's both ends with lower floor's reation kettle's both ends respectively through the flange with preceding sealed storehouse and back sealed storehouse links to each other.
Preferably, the transmission chains comprise two transmission chains which are symmetrically distributed left and right, a plurality of conveying baffles are erected between the two transmission chains, and the conveying baffles are uniformly distributed along the transmission direction of the transmission chains.
Preferably, the transmission chain is including being located upper drive chain in the upper reation kettle, and being located lower floor's transmission chain in the lower floor's reation kettle, upper drive chain upper portion is connected with upper panel, lower floor's transmission chain lower part is equipped with lower panel.
Preferably, the automatic hydraulic tensioning device is connected with the transmission driven wheel, is positioned outside the front sealing bin and is connected with the transmission driven wheel through a connecting piece.
Preferably, a conical blanking port is arranged at the bottom of the front sealing bin, and a pneumatic ball valve and a pneumatic knife valve are sequentially arranged at the joint of the conical blanking port and the inner rotary pyrolysis reaction kettle.
The invention also provides a pyrolysis system comprising the pyrolysis device in any technical scheme, which comprises a feeding device, a pyrolysis device and a discharging device which are connected in sequence, wherein the feeding device is connected with the scraper type pyrolysis reaction kettle through the front sealing bin, and the discharging device is connected with the internal rotation type pyrolysis reaction kettle.
Preferably, a pneumatic knife valve and a pneumatic ball valve are sequentially arranged at the joint of the feeding device and the front sealing bin; and a pneumatic knife valve and a pneumatic ball valve are sequentially arranged at the joint of the internal rotation type pyrolysis reaction kettle and the discharging device.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a pyrolysis device for solid materials, which comprises a scraper type pyrolysis reaction kettle and an internal rotation type pyrolysis reaction kettle which are sequentially connected, so that the treatment stroke of the solid materials in the pyrolysis reaction kettle is greatly prolonged, the pyrolysis efficiency is improved, and the complete treatment of the solid materials is ensured; by arranging the front sealed bin and the rear sealed bin, the reliability and the safety of the operation of the device are ensured under the condition that a plurality of pyrolysis reaction kettles exist;
2. the invention provides a solid material pyrolysis device, which improves the heating efficiency and the production yield by arranging an upper layer reaction kettle and a lower layer reaction kettle in a kettle body and independently arranging a heating pipeline in each reaction kettle;
3. the invention provides a solid material pyrolysis device, wherein an upper-layer reaction kettle and a lower-layer reaction kettle are respectively connected with a front sealing bin and a rear sealing bin through flanges, so that the stability and the sealing property of the device are further improved, and the upper-layer reaction kettle and the lower-layer reaction kettle are convenient to overhaul respectively;
4. the invention provides a solid material pyrolysis device, which realizes automatic tensioning of a transmission chain of an equipment conveying baffle plate through an automatic hydraulic tensioning device arranged outside a front sealing bin, increases the stability of equipment operation, further improves the automation of the device and improves the production efficiency;
5. the invention also provides a pyrolysis system, which realizes pyrolysis treatment and recycling of the waste rubber and the waste plastic under the condition of ensuring safety and reliability, and has the characteristics of high pyrolysis efficiency, full pyrolysis, strong applicability, and suitability for the thermal cracking treatment of the waste rubber and the waste plastic.
Drawings
FIG. 1 is a schematic structural diagram of a pyrolysis apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a rear sealed bin of a pyrolysis device provided in an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure of the scraper pyrolysis reaction kettle, the front sealed bin and the rear sealed bin in the pyrolysis apparatus provided in the embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the upper reaction kettle and the lower reaction kettle of the pyrolysis apparatus provided in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a connection flange in a pyrolysis apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a pyrolysis system according to an embodiment of the present invention;
in the above figures: 1. a pyrolysis device; 11. a scraper type pyrolysis reaction kettle; 111. a kettle body; 112. a driven wheel is driven; 113. a transmission driving wheel; 114. a drive chain; 115. an upper reaction kettle; 1151. an upper hot air jacket; 1152. a first heating conduit; 1153. an upper layer transmission chain; 116. a lower reaction kettle; 1161. a lower hot air jacket; 1162. a middle layer hot air jacket; 1163. a second heating conduit; 1164. a lower layer of transmission chain; 117. a conveying baffle; 118. a connecting member; 12. an internal rotation type pyrolysis reaction kettle; 13. a front sealed bin; 14. then sealing the bin; 141. an oil gas outlet temperature controller; 142. a rear sealed bin blind plate; 15. a flange; 16. a driving wheel transmission device; 17. a rear wheel bearing seat of the driving wheel transmission device; 2. a feeding device; 3. a discharging device; 4. a pneumatic ball valve; 5. pneumatic knife valve.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in fig. 1, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1, in one aspect, the present invention provides a solid material pyrolysis apparatus, including a scraper pyrolysis reaction kettle 11, further including an internal rotation type pyrolysis reaction kettle 12 connected to the scraper pyrolysis reaction kettle 11, a front sealed cabin 13 and a rear sealed cabin 14 disposed at two ends of the scraper pyrolysis reaction kettle 11 and communicated with the scraper pyrolysis reaction kettle 11, wherein the scraper pyrolysis reaction kettle 11 and the internal rotation type pyrolysis reaction kettle 12 are connected through the front sealed cabin 13;
the scraper pyrolysis reaction kettle 11 comprises a kettle body 111, a transmission driven wheel 112 and a transmission driving wheel 113;
an upper hot air jacket 1151 is arranged on the outer side of the upper part of the kettle body 111, a lower hot air jacket 1161 is arranged on the outer side of the lower part of the kettle body 111, and a middle hot air jacket 1162 is arranged in the middle of the kettle body 111;
the transmission driven wheel 112 and the transmission driving wheel 113 are respectively positioned in the front sealed cabin 13 and the rear sealed cabin 14, and a transmission chain 114 surrounding the middle layer hot air jacket 1162 is arranged between the transmission driven wheel 112 and the transmission driving wheel 113.
The pyrolysis device comprises a scraper type pyrolysis reaction kettle 11 and an internal rotation type pyrolysis reaction kettle 12 which are sequentially connected, the treatment stroke of solid materials in the pyrolysis reaction kettle is greatly prolonged, the pyrolysis efficiency is improved, and the complete treatment of the solid materials is ensured at the same time, specifically, the internal rotation type pyrolysis reaction kettle 12 and the scraper type pyrolysis reaction kettle 11 are combined together, the advantages of no scraping and no coking of the internal rotation type pyrolysis reaction kettle 12 and general internal rotation of waste materials such as biomass garbage, garbage plastics, medical garbage and the like are utilized, the problems of easy coking and poor treatment effect of the scraper type pyrolysis reaction kettle 11 in the treatment of the solid materials are solved, and the mixed pyrolysis device is more universal and has wider applicability; in addition, this embodiment also defines that the scraper pyrolysis reactor 11 is disposed before the internal rotation pyrolysis reactor 12, because: internal rotation formula pyrolysis reation kettle 12 is as mixed universal equipment, can carry out further thermal cracking to the not complete material of thermal cracking yet after being handled by scraper type pyrolysis reation kettle 11, realizes the thorough thermal cracking to solid material, improves the pyrolysis effect. Finally, when the pyrolysis reaction kettle is adopted to carry out pyrolysis treatment on the solid material, it is important to prevent air from entering the high-temperature reaction kettle or prevent high-temperature oil gas from leaking into the air, however, the existing pyrolysis device 1, no matter the internal rotation pyrolysis reaction kettle or the external rotation pyrolysis reaction kettle, generally has the problems of poor equipment stability, easy deformation of the pyrolysis reaction kettle body 111, easy leakage at the dynamic and static matching parts, potential safety hazards and difficult equipment operation, the mixed pyrolysis device provided by the embodiment comprises a scraper pyrolysis reaction kettle 11 and an internal rotation pyrolysis reaction kettle 12, it is stricter to the requirement of equipment leakproofness and stability, and consequently, the mixed pyrolysis device that this embodiment provided has guaranteed reliability and the security of device operation under the condition that a plurality of pyrolysis reation kettle exist through setting up preceding sealed storehouse 13 and back sealed storehouse 14. The vessel body 111 of the scraped-surface pyrolysis reactor 11 includes two upper and lower vessel bodies 111. As shown in fig. 2, the rear sealed cabin 14 is further provided with an oil-gas outlet temperature controller 141 and a rear sealed cabin blind plate 142, and the outside of the rear sealed cabin 14 is provided with a driving wheel transmission device 16 for driving the driving wheel 113 to rotate and a driving wheel transmission device rear wheel bearing seat 17.
In order to ensure that the device is convenient to disassemble and overhaul on the premise of ensuring the tightness of the device, the front sealing bin 13 is connected with the kettle body 111, and the rear sealing bin 14 is connected with the kettle body 111 through flanges 15.
In order to improve the pyrolysis efficiency, the scraper pyrolysis reaction kettle 11 comprises an upper reaction kettle 115 and a lower reaction kettle 116, wherein an upper hot air jacket 1151 is positioned in the upper reaction kettle 115, a lower hot air jacket 1161 and a middle hot air jacket 1162 are positioned in the lower reaction kettle 116, and the scraper pyrolysis reaction kettle further comprises a first heating pipeline 1152 connected with the upper hot air jacket 1151 and a second heating pipeline 1163 connected with the middle hot air jacket 1162. This embodiment has improved heating efficiency and production output through set up upper reation kettle 115, lower floor's reation kettle 116 in a cauldron body 111 to set up reation kettle internal heating pipeline alone in every reation kettle.
As shown in fig. 3, the driving chain 114 includes an upper driving chain 1153 located in the upper reaction kettle 115 and a lower driving chain 1164 located in the lower reaction kettle 116, and both ends of the upper reaction kettle 115 and both ends of the lower reaction kettle 116 are connected to the front sealing bin 13 and the rear sealing bin 14 through flanges 15, respectively. This embodiment has further improved the stability and the leakproofness of device, is convenient for overhaul upper reation kettle 115 and lower floor's reation kettle 116 respectively simultaneously. It should be noted that, as shown in fig. 4, the kettle bodies 111 of the upper reaction kettle 115 and the lower reaction kettle 116 are both of a hexagonal structure, and the kettle body 111 of the upper reaction kettle 115 and the kettle body 111 of the lower reaction kettle 116 are respectively connected to the front sealing bin 13 through a flange 15 structure as shown in fig. 5.
In order to carry out the coke scraping treatment in time and avoid the generation of carbon deposition, the transmission chain 114 comprises two transmission chains 114 which are distributed in bilateral symmetry, a plurality of conveying baffle plates 117 are erected between the two transmission chains 114, and the plurality of conveying baffle plates 117 are uniformly distributed along the transmission direction of the transmission chains 114.
Further, the transmission chain 114 includes an upper transmission chain 1153 located in the upper reaction kettle 115 and a lower transmission chain 1164 located in the lower reaction kettle 116, the upper portion of the upper transmission chain 1153 is connected with an upper panel, and the lower portion of the lower transmission chain 1164 is provided with a lower panel. The conveying baffle 117 erected on the upper-layer transmission chain 1153 is used for performing coke scraping treatment on the upper-layer panel, and the conveying baffle 117 erected on the lower-layer transmission chain 1164 is used for performing coke scraping treatment on the lower-layer panel. The arrangement of the upper panel, the lower panel, the transmission chain 114 and the conveying baffle 117 ensures the continuous conveying of the solid materials in the scraper pyrolysis reaction kettle 11, and reduces the possibility of carbon deposition in the pyrolysis reaction kettle.
In order to further improve the stability of the device in the operation process, the device further comprises an automatic hydraulic tensioner connected with the driven transmission wheel 112, the automatic hydraulic tensioner is positioned outside the front sealed cabin 13, and the automatic hydraulic tensioner is connected with the driven transmission wheel 112 through a connecting piece 118. Through the automatic hydraulic tensioning device arranged outside the front sealing bin 13, the automatic tensioning of the transmission chain 114 of the equipment conveying baffle 117 is realized, the stability of the equipment operation is increased, the automation of the device is further improved, and the production efficiency is improved. It should be noted that, in the scraper pyrolysis reactor 11, since the conveying baffle 117 and the driving chain 114 and the chain wheel are worn to some extent during long-term operation, accumulated pitch change occurs, which causes the conveying chain to be loose and not well engaged with the chain wheel, thereby causing derailment. Therefore, the traditional solution is to solve the problem by manual tensioning, which increases the labor cost and has certain safety hazard. However, the transmission device in this embodiment is located inside the scraper pyrolysis reaction kettle 11, and the operation condition inside cannot be seen from the outside, so that the degree of tension of the chain cannot be adjusted in time, which may cause derailment of the chain or even damage to the production equipment.
In order to ensure the air tightness and safety of the device in the operation process, the bottom of the front sealed bin 13 is provided with a conical blanking port, and the joint of the conical blanking port and the internal rotation type pyrolysis reaction kettle 12 is sequentially provided with a pneumatic ball valve 4 and a pneumatic knife valve 5. Seal silo 13 connects scraper blade type pyrolysis reation kettle 11 and interior spiral type pyrolysis reation kettle 12 before utilizing, simultaneously with seal silo 13 bottom before setting up the toper blanking mouth, and set gradually pneumatic ball valve 4 and pneumatic knife valve 5 in the junction of toper blanking mouth and interior spiral type pyrolysis reation kettle 12, the gas tightness of each pyrolysis reation kettle has been guaranteed, when meetting emergency, can in time close the security that the valve of different nature comes the improving means, avoid dangerous emergence.
As shown in fig. 6, another aspect of the present invention provides a pyrolysis system including the pyrolysis apparatus of any one of the above embodiments, including a feeding apparatus 2, a pyrolysis apparatus 1, and a discharging apparatus 3, which are connected in sequence, where the feeding apparatus 2 is connected to the scraped pyrolysis reactor 11 through a front sealed bin 13, and the discharging apparatus 3 is connected to the internal rotation pyrolysis reactor 12. This pyrolysis system has realized the pyrolysis treatment and recycle to rubber waste and waste plastics under the circumstances of guaranteeing safe and reliable, has the pyrolysis efficiency height, and the pyrolysis is abundant, can be applicable to the thermal cracking treatment of rubber waste and waste plastics simultaneously, characteristics that the suitability is strong.
Further, a pneumatic knife valve 5 and a pneumatic ball valve 4 are sequentially arranged at the joint of the feeding device 2 and the front sealing bin 13; the connection part of the internal rotation type pyrolysis reaction kettle 12 and the discharging device 3 is sequentially provided with a pneumatic knife valve 5 and a pneumatic ball valve 4. The arrangement of the pneumatic knife valve 5 and the pneumatic ball valve 4 ensures the air tightness of the pyrolysis reaction kettle and provides the safety of the system. In addition, the slag discharging device also comprises a PLC controller which is used for controlling the pneumatic knife valve 5 and the pneumatic ball valve 4 to be in an opening or closing state at the same time, and the automation degree is improved.
The working process of the pyrolysis device for thermally cracking the solid materials comprises the following steps:
the mixture of waste rubber and waste plastic enters the scraper pyrolysis reaction kettle 11 through the front sealed bin 13 for thermal cracking, wherein the mixture firstly enters the upper reaction kettle 115 for thermal cracking, then enters the rear sealed bin 14, then enters the lower reaction kettle 116 from the rear sealed bin 14 for thermal cracking, and finally enters the inner rotary pyrolysis reaction kettle 12 through the front sealed bin 13 for complete thermal cracking.
Claims (10)
1. Solid material pyrolysis device, including scraper type pyrolysis reation kettle (11), its characterized in that: the device is characterized by also comprising an internal rotation type pyrolysis reaction kettle (12) connected with the scraper type pyrolysis reaction kettle (11), a front sealing bin (13) and a rear sealing bin (14) which are arranged at two ends of the scraper type pyrolysis reaction kettle (11) and communicated with the scraper type pyrolysis reaction kettle (11), wherein the scraper type pyrolysis reaction kettle (11) is connected with the internal rotation type pyrolysis reaction kettle (12) through the front sealing bin (13);
the scraper pyrolysis reaction kettle (11) comprises a kettle body (111), a transmission driven wheel (112) and a transmission driving wheel (113);
an upper-layer hot air jacket (1151) is arranged on the outer side of the upper part of the kettle body (111), a lower-layer hot air jacket (1161) is arranged on the outer side of the lower part of the kettle body (111), and a middle-layer hot air jacket (1162) is arranged in the middle of the kettle body (111);
the transmission driven wheel (112) and the transmission driving wheel (113) are respectively positioned in the front sealed cabin (13) and the rear sealed cabin (14), and a transmission chain (114) surrounding the middle-layer hot air jacket (1162) is arranged between the transmission driven wheel (112) and the transmission driving wheel (113).
2. A pyrolysis apparatus as claimed in claim 1, wherein: the front sealing bin (13) is connected with the kettle body (111), and the rear sealing bin (14) is connected with the kettle body (111) through flanges (15).
3. A pyrolysis apparatus as claimed in claim 1, wherein: scraper pyrolysis reaction cauldron (11) include upper reation kettle (115) and lower floor reation kettle (116), upper hot-blast clamp cover (1151) is located in upper reation kettle (115), lower floor's hot-blast clamp cover (1161) with middle level hot-blast clamp cover (1162) is located in lower floor reation kettle (116), still include with upper hot-blast clamp cover (1151) continuous first heating tube (1152), and with the second heating tube (1163) that middle level hot-blast clamp cover (1162) links to each other.
4. A pyrolysis apparatus according to claim 3, wherein: drive chain (114) are including being located upper drive chain (1153) in upper reation kettle (115), and be located lower floor's drive chain (1164) in lower floor's reation kettle (116), the both ends of upper reation kettle (115) with the both ends of lower floor's reation kettle (116) respectively through flange (15) with preceding seal chamber (13) and back seal chamber (14) link to each other.
5. A pyrolysis apparatus as claimed in claim 1, wherein: the transmission chain (114) comprises two transmission chains (114) which are symmetrically distributed left and right, a plurality of conveying baffles (117) are erected between the two transmission chains (114), and the conveying baffles (117) are uniformly distributed along the transmission direction of the transmission chains (114).
6. A pyrolysis apparatus according to claim 5, wherein: the transmission chain (114) comprises an upper transmission chain (1153) positioned in the upper reaction kettle (115) and a lower transmission chain (1164) positioned in the lower reaction kettle (116), an upper panel is connected to the upper part of the upper transmission chain (1153), and a lower panel is arranged on the lower part of the lower transmission chain (1164).
7. A pyrolysis apparatus as claimed in claim 1, wherein: the automatic hydraulic tensioning device is positioned outside the front sealing bin (13), and is connected with the transmission driven wheel (112) through a connecting piece (118).
8. A pyrolysis apparatus as claimed in claim 1, wherein: the bottom of the front sealing bin (13) is provided with a conical blanking port, and the joint of the conical blanking port and the inner rotary pyrolysis reaction kettle (12) is sequentially provided with a pneumatic ball valve (4) and a pneumatic knife valve (5).
9. A pyrolysis system comprising the pyrolysis apparatus of any one of claims 1 to 8, wherein: including consecutive feed arrangement (2), pyrolysis device (1) and discharging device (3), feed arrangement (2) with scrape board-like pyrolysis reation kettle (11) and pass through preceding sealed bin (13) link to each other, discharging device (3) with interior spiral pyrolysis reation kettle (12) link to each other.
10. A pyrolysis system according to claim 9, wherein: a pneumatic knife valve (5) and a pneumatic ball valve (4) are sequentially arranged at the joint of the feeding device (2) and the front sealing bin (13); the connection part of the internal rotation type pyrolysis reaction kettle (12) and the discharging device (3) is sequentially provided with a pneumatic knife valve (5) and a pneumatic ball valve (4).
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| CN201911024941.8A CN110616078A (en) | 2019-10-25 | 2019-10-25 | Solid material pyrolysis device and pyrolysis system comprising same |
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| CN111218296A (en) * | 2020-03-19 | 2020-06-02 | 青岛伊克斯达科技有限公司 | Modular continuous pyrolysis internal rotation type reaction kettle device |
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