CN108441242B - Spiral exhaust type continuous feeding device and method for waste tire thermal cracking - Google Patents
Spiral exhaust type continuous feeding device and method for waste tire thermal cracking Download PDFInfo
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- CN108441242B CN108441242B CN201810501631.XA CN201810501631A CN108441242B CN 108441242 B CN108441242 B CN 108441242B CN 201810501631 A CN201810501631 A CN 201810501631A CN 108441242 B CN108441242 B CN 108441242B
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- 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
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- 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
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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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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- 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
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- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides a spiral exhaust type continuous feeding device and method for waste tire thermal cracking, wherein the continuous feeding device comprises a material distribution spiral conveyor, a first spiral exhaust conveyor and a feeding spiral conveyor which are sequentially communicated, a first feeding hole and a first discharging hole are formed in the material distribution spiral conveyor, a third discharging hole communicated with a thermal cracking reaction kettle is formed in the feeding spiral conveyor, and a first gate valve and a second gate valve which are used for sealing the first spiral exhaust conveyor are respectively arranged at the discharging end and the feeding end of the first spiral exhaust conveyor. The invention provides a continuous feeding device and a continuous feeding method, which realize the sealing between a continuous feeding device and a thermal cracking reaction kettle, ensure the safety and environmental protection of thermal cracking compared with the sealing in a way of extruding broken tires, and effectively avoid oxygen in the air from entering the reaction kettle or high-temperature oil gas in the reaction kettle from leaking into the air.
Description
Technical Field
The invention belongs to the technical field of waste tire recovery and treatment, and particularly relates to a spiral exhaust type continuous feeding device and method for waste tire thermal cracking.
Background
The thermal cracking technology for waste tires is to crack rubber components in the waste tires into oil products and non-condensable gases (the main components are combustible gases such as methane, hydrogen and the like) by heating under the condition of no oxygen or lack of oxygen, and simultaneously obtain other materials, namely carbon black and steel wires, added in the tire manufacturing process. The cracked oil can be refined into high-calorific-value fuel, the thermally cracked carbon black and steel wires can be recycled, and the non-condensable gas is returned to be combusted to provide a heat source for the pyrolysis reaction.
At present, the thermal cracking of waste tires mainly adopts two modes: whole tire type and continuous type. The whole tyre type waste tyre thermal cracking belongs to a batch processing mode, namely, a certain number of complete tyres (without being crushed) are loaded into a reaction cavity to be heated for thermal cracking, and then the tyres are loaded after being cooled. The whole tyre type waste tyre thermal cracking has the defect that the temperature needs to be repeatedly increased and decreased in the production process, so that the energy consumption is greatly increased. Therefore, the continuous thermal cracking technology of the waste tires is the latest development trend, however, the continuous thermal cracking technology firstly needs to solve the problem of continuously conveying broken waste tire blocks to a thermal cracking reaction kettle filled with high-temperature oil gas, and simultaneously, oxygen in the air is prevented from entering the reaction kettle or the high-temperature oil gas in the reaction kettle is prevented from leaking into the air.
At present, the continuous waste tire thermal cracking equipment mainly adopts an extrusion mode to realize sealing in the process of pushing broken waste tire blocks into a reaction kettle, for example, a hydraulic push rod is utilized to push the waste tire blocks to pass through a pipe structure with a diameter gradually reduced, and the waste tire blocks are compressed to generate a sealing effect due to the reduction of the diameter. However, this method requires a high-power driving motor to achieve good sealing performance, which consumes a large amount of electric power; in addition, the sealing effect is obviously influenced by the feeding speed, and when the feeding amount is reduced, the sealing performance is deteriorated, so that potential safety hazards exist.
Disclosure of Invention
The invention provides a spiral exhaust type continuous feeding device and method for waste tire thermal cracking, aiming at the technical problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a continuous feeding device for thermal cracking of waste tires, which comprises a material-distributing screw conveyor, a first screw exhaust conveyor and a feeding screw conveyor which are sequentially communicated, wherein the material-distributing screw conveyor is provided with a first feeding hole and a first discharging hole, and the feeding screw conveyor is provided with a third discharging hole communicated with a thermal cracking reaction kettle; the first discharge port of the material-separating screw conveyor is communicated with the feed end of the first screw exhaust conveyor, a first gate valve used for sealing the feed end of the first screw exhaust conveyor is arranged between the first discharge port of the material-separating screw conveyor and the feed end of the first screw exhaust conveyor, the discharge end of the first screw exhaust conveyor is communicated with the feed end of the feed screw conveyor, and a second gate valve used for sealing the discharge end of the first screw exhaust conveyor is arranged between the discharge end of the first screw exhaust conveyor and the feed end of the feed screw conveyor.
Preferably, the first inserting plate valve is controlled to be opened and controlled to be closed, the waste tire blocks are taken and conveyed to the first discharging hole through the first feeding hole, when the first spiral exhaust conveyor is filled with the waste tire blocks, the first inserting plate valve is controlled to be closed and controlled to be opened, the feeding spiral conveyor is simultaneously opened, and the waste tire blocks in the first spiral exhaust conveyor are output to the thermal cracking reaction kettle through the feeding spiral conveyor.
Preferably, a second discharge port is further arranged on the material separating screw conveyor, the second discharge port is communicated with a second screw exhaust conveyor, the discharge end of the second screw exhaust conveyor is communicated with the feed end of the feed screw conveyor, a third gate valve used for sealing the feed end of the second screw exhaust conveyor is arranged between the second discharge port and the feed end of the second screw exhaust conveyor, and a fourth gate valve used for sealing the discharge end of the second screw exhaust conveyor is arranged between the discharge end of the second screw exhaust conveyor and the feed end of the feed screw conveyor.
More preferably, the first discharge port and the second discharge port are respectively arranged at two ends of the material-distributing screw conveyor, and the feed port is arranged in the middle of the material-distributing screw conveyor.
Preferably, when the first gate valve is controlled to be closed and the second gate valve is controlled to be opened, waste tire blocks are taken and conveyed to the second discharge hole through the first feed port, the third gate valve is controlled to be opened and the fourth gate valve is controlled to be closed, when the waste tire blocks are filled in the second spiral exhaust conveyor, the third gate valve is controlled to be closed and the fourth gate valve is controlled to be opened, and meanwhile, the first gate valve is controlled to be opened and the second gate valve is controlled to be closed.
Preferably, the first spiral exhaust conveyor and the second spiral exhaust conveyor are both communicated with the feeding spiral conveyor through a material collecting spiral conveyor.
Preferably, a second feeding hole, a third feeding hole and a fourth discharging hole are formed in the material gathering screw conveyor, the second feeding hole and the third feeding hole are respectively communicated with the discharging end of the first screw exhaust conveyor and the discharging end of the second screw exhaust conveyor, the fourth discharging hole is communicated with the feeding end of the feeding screw conveyor, the second gate valve is arranged between the discharging end of the first screw exhaust conveyor and the second feeding hole, and the fourth gate valve is arranged between the discharging end of the second screw exhaust conveyor and the third feeding hole.
More preferably, the second feeding port and the third feeding port are both arranged at two ends of the gathering screw conveyor, and the fourth discharging port is located in the middle of the gathering screw conveyor.
Preferably, the material separating screw conveyor and the material collecting screw conveyor are both bidirectional screw conveyors. Wherein the conveying direction of the broken waste tire blocks is controlled by controlling the forward and reverse rotation of the conveyor driving motor.
The invention also provides a scrap tire thermal cracking system which comprises a thermal cracking reaction kettle, wherein the feeding end of the thermal cracking reaction kettle is connected with the continuous feeding device for the thermal cracking of the scrap tires.
The invention also provides a continuous feeding method for waste tire thermal cracking, which comprises the following steps:
get junked tire piece and add by the first feed inlet of dividing material auger delivery ware, the driving motor forward rotation of control branch material auger delivery ware makes junked tire piece export and open and control through the first picture peg valve of control by first discharge gate in the second picture peg valve is closed, makes junked tire piece keep the piece continuously to fill to first spiral exhaust conveyer, treats first spiral exhaust conveyer is filled up during the junked tire piece, control first picture peg valve is closed and control the second picture peg valve is opened, opens feeding auger delivery ware simultaneously, makes junked tire piece in the first spiral exhaust conveyer exports to the thermal cracking reation kettle in through feeding auger delivery ware.
Preferably, the method further comprises the following steps: when the first gate valve is closed and the second gate valve is opened, taking the waste tire blocks to be added from the first feed inlet of the material-dividing screw conveyor, controlling the driving motor of the material-dividing screw conveyor to rotate reversely, enabling the waste tire blocks to be output from the second discharge outlet and controlling the third gate valve to be opened and controlling the fourth gate valve to be closed, enabling the waste tire blocks to be continuously filled into the second screw exhaust conveyor, waiting for the second screw exhaust conveyor to be filled with the waste tire blocks and the waste tire blocks in the first screw exhaust conveyor to be all conveyed to the feeding screw conveyor, controlling the third gate valve to be closed and controlling the fourth gate valve to be opened, keeping the feeding screw conveyor in an open state, and enabling the waste tire blocks in the second screw exhaust conveyor to be output into the thermal cracking reaction kettle through the feeding screw conveyor, and meanwhile, the content of each step is repeated from the initial step to the reciprocating step until the feeding of the waste tire blocks is finished.
Preferably, the method further comprises the following steps: when the first gate valve is controlled to be closed and the second gate valve is controlled to be opened, the waste tire blocks in the first spiral exhaust conveyor are conveyed into the gathering spiral conveyor through the second feeding hole, and the driving motor of the gathering spiral conveyor is controlled to rotate in the positive direction, so that the waste tire blocks in the first spiral exhaust conveyor are output into the feeding spiral conveyor through the fourth discharging hole;
when the third gate valve is controlled to be closed and the fourth gate valve is controlled to be opened, the waste tire blocks in the second spiral exhaust conveyor are conveyed into the gathering spiral conveyor through the third feeding port, the driving motor of the gathering spiral conveyor is controlled to rotate reversely, and the waste tire blocks in the second spiral exhaust conveyor are output into the feeding spiral conveyor through the fourth discharging port.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. according to the spiral exhaust type continuous feeding device and method for waste tire thermal cracking, provided by the invention, the first gate valve and the second gate valve are arranged, so that when the waste tire blocks are controlled to be fed continuously, the sealing between the continuous feeding device and a thermal cracking reaction kettle is realized, compared with the sealing in a manner of extruding broken tires, the safety and the environmental protection of thermal cracking are ensured, and oxygen in air is effectively prevented from entering the reaction kettle or high-temperature oil gas in the reaction kettle is prevented from leaking into the air.
2. According to the spiral exhaust type continuous feeding device and method for waste tire thermal cracking, two conveying paths are supplied simultaneously, one conveying path adopts the first spiral exhaust conveyor, and the other conveying path adopts the second spiral exhaust conveyor, so that continuous and stable feeding is realized, and the feeding working efficiency is improved; and the gate valve is matched for use, so that the sealing property of continuous feeding is ensured, and the safety and the environmental protection property of thermal cracking are ensured.
3. According to the spiral exhaust type continuous feeding device and method for waste tire thermal cracking, provided by the invention, a plurality of groups of spiral conveyors are combined and matched, wherein the spiral conveyors only play a conveying role, so that the energy consumption is low, the use cost is reduced, the actual processing requirement is better met, and the spiral exhaust type continuous feeding device and method are suitable for being put into use in industry.
Drawings
FIG. 1 is a schematic structural view of a continuous feeding apparatus for thermally cracking waste tires according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another embodiment of the continuous feeding apparatus for thermally cracking junked tires according to the present invention;
FIG. 3 is a schematic structural view of a continuous feeding apparatus for thermally cracking waste tires according to still another embodiment of the present invention;
in the above figures: 1. a material-separating screw conveyor; 11. a first feed port; 12. a first discharge port; 13. a second discharge port; 2. a first helical exhaust conveyor; 3. a feed screw conveyor; 31. a third discharge port; 4. a first gate valve; 5. a second gate valve; 6. a second helical exhaust conveyor; 7. a third gate valve; 8. a fourth gate valve; 9. a gathering screw conveyor; 91. a second feed port; 92. a third feed inlet; 93. a fourth discharge port; 10. a thermal cracking reaction kettle.
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 should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only 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 specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides a continuous feeding device for thermal cracking of waste tires, which includes a material-dividing screw conveyor 1, a first screw exhaust conveyor 2, and a feeding screw conveyor 3 that are sequentially communicated, wherein the material-dividing screw conveyor 1 is provided with a first feeding port 11 and a first discharging port 12, and the feeding screw conveyor 3 is provided with a third discharging port 31 that is communicated with a thermal cracking reaction kettle 10; the first discharge port 12 of the material-separating screw conveyor 1 is communicated with the feed end of the first screw exhaust conveyor 2, a first gate valve 4 for sealing the feed end of the first screw exhaust conveyor 2 is arranged between the first discharge port 12 and the feed end of the first screw exhaust conveyor 2, the discharge end of the first screw exhaust conveyor 2 is communicated with the feed end of the feed screw conveyor 3, and a second gate valve 5 for sealing the discharge end of the first screw exhaust conveyor 2 is arranged between the discharge end of the first screw exhaust conveyor 2 and the feed end of the feed screw conveyor 3.
The first gate valve 4 and the second gate valve 5 can be selected to adopt a manual mode or an electric mode according to actual requirements, and the specific operation mode is as follows: and controlling the first gate valve 4 to be opened and the second gate valve 5 to be closed, taking the waste tire blocks, conveying the waste tire blocks to the first discharge hole 12 through the first feed inlet 11, controlling the first gate valve 4 to be closed and controlling the second gate valve 5 to be opened when the first spiral exhaust conveyor 2 is filled with the waste tire blocks, and simultaneously opening the feed spiral conveyor 3 to enable the waste tire blocks in the first spiral exhaust conveyor 2 to be output to the thermal cracking reaction kettle 10 through the feed spiral conveyor 3. Adopt three auger delivery wares of group and cooperate two push-pull valves to use in proper order, it is convenient to assemble, and realizes the continuous feed of useless tire piece, has guaranteed the sealed between continuous feed arrangement and the thermal cracking reation kettle 10, compares the sealed of the broken tire mode of extrusion, has ensured thermal cracking's security and feature for environmental protection, effectively avoids oxygen in the air to get into reation kettle or the reation kettle in the high temperature oil gas reveal the air.
Meanwhile, as shown in fig. 2, in order to improve the continuous feeding efficiency of the thermal cracking reaction of the waste tire blocks, the material-dividing screw conveyor 1 is further provided with a second material outlet 13, the second material outlet 13 is communicated with a second screw exhaust conveyor 66, the material outlet end of the second screw exhaust conveyor 66 is communicated with the material inlet end of the material-feeding screw conveyor 3, a third gate valve 7 for sealing the material inlet end of the second screw exhaust conveyor 66 is arranged between the second material outlet 13 and the material inlet end of the second screw exhaust conveyor 66, the material outlet end of the second screw exhaust conveyor 66 is communicated with the material inlet end of the material-feeding screw conveyor 3, and a fourth gate valve 8 for sealing the material outlet end of the second screw exhaust conveyor 66 is arranged between the material outlet end of the second screw exhaust conveyor and the material inlet end of the material-feeding screw conveyor.
The third gate valve 7 and the fourth gate valve 8 can be selected to adopt a manual mode or an automatic mode according to actual requirements, and the specific operation mode is as follows: when the first gate valve 4 is controlled to be closed and the second gate valve 5 is controlled to be opened, waste tire blocks are taken and conveyed to the second discharge hole 13 through the first feed port 11, the third gate valve 7 is controlled to be opened and the fourth gate valve 8 is controlled to be closed, when the second spiral exhaust conveyor 6 is filled with the waste tire blocks, the third gate valve 7 is controlled to be closed and the fourth gate valve 8 is controlled to be opened, and meanwhile, the first gate valve 4 is controlled to be opened and the second gate valve 5 is controlled to be closed. The two conveying passages are adopted, so that continuous feeding is realized, continuous and stable feeding is realized, and the feeding working efficiency is improved; and the gate valve is matched for use, so that the sealing property of continuous feeding is ensured, and the safety and the environmental protection property of thermal cracking are ensured.
In addition, as shown in fig. 3, in order to further ensure the stability of continuous feeding and realize the integration of two sets of output feeding materials, the first spiral exhaust conveyor 2 and the second spiral exhaust conveyor 66 are communicated with the feeding spiral conveyor 3 through the collecting spiral conveyor 9.
In the aforesaid, second feed inlet 91, third feed inlet 92 and fourth discharge gate 93 have been seted up on the material collecting auger delivery ware 9, second feed inlet 91 and third feed inlet 92 respectively with the discharge end of first auger exhaust conveyer 2 and the discharge end of second auger exhaust conveyer 6 are linked together, fourth discharge gate 93 with the feed end of feeding auger delivery ware 3 is linked together, second push-pull valve 5 set up in the discharge end of first auger exhaust conveyer 2 with between the second feed inlet 91, fourth push-pull valve 8 set up in the discharge end of second auger exhaust conveyer 6 with between the third feed inlet 92.
Meanwhile, as shown in fig. 3, in order to improve the reasonableness of assembling the multiple sets of screw conveyors and to make the conveying of the waste tire blocks smoother, the first discharge port 12 and the second discharge port 13 are respectively disposed at two ends of the material-distributing screw conveyor 1, and the feed ports are disposed at the middle position of the material-distributing screw conveyor 1. The second feeding hole 91 and the third feeding hole 92 are both disposed at two ends of the gathering screw conveyor 9, and the fourth discharging hole 93 is located at the middle position of the gathering screw conveyor 9.
In addition, in order to satisfy the passage for conveying two sets of waste tire blocks, the above-described material-separating screw conveyor 1 and the material-collecting screw conveyor 9 are both provided as bidirectional screw conveyors. Wherein the conveying direction of the broken waste tire blocks is controlled by controlling the forward and reverse rotation of the conveyor driving motor.
The embodiment of the invention also provides a waste tire thermal cracking system, which comprises a thermal cracking reaction kettle, wherein the feeding end of the thermal cracking reaction kettle is connected with the continuous feeding device for thermal cracking of the waste tire.
Based on the provided continuous feeding device for waste tire thermal cracking, the embodiment of the invention also provides a continuous feeding method for waste tire thermal cracking, which comprises the following steps:
the method comprises the steps of adding waste tire blocks from a first feeding hole 11 of a material-dividing screw conveyor 1, controlling a driving motor of the material-dividing screw conveyor 1 to rotate in the forward direction, enabling the waste tire blocks to be output from a first discharging hole 12, controlling a first gate valve 4 to open and controlling a second gate valve 5 to close, enabling the waste tire blocks to be continuously filled into a first screw exhaust conveyor 2, controlling the first gate valve 4 to close and controlling the second gate valve 5 to open when the waste tire blocks are filled in the first screw exhaust conveyor 2, and simultaneously opening a feeding screw conveyor 3 to enable the waste tire blocks in the first screw exhaust conveyor 2 to be output to a thermal cracking reaction kettle 10 through the feeding screw conveyor 3.
In addition, in order to realize the joint work of the waste tire feeding channel and improve the continuity and the high efficiency of feeding, the method also comprises the following steps: when the first gate valve 4 is closed and the second gate valve 5 is opened, waste tire blocks are taken and added from the first feeding hole 11 of the material-dividing screw conveyor 1, the driving motor of the material-dividing screw conveyor 1 is controlled to rotate reversely, the waste tire blocks are output from the second discharging hole 13, the third gate valve 7 is controlled to be opened and the fourth gate valve 8 is controlled to be closed, the waste tire blocks are continuously filled into the second screw exhaust conveyor 6, when the waste tire blocks are filled in the second screw exhaust conveyor 6 and the waste tire blocks in the first screw exhaust conveyor 2 are all conveyed to the feeding screw conveyor 3, the second gate valve 5 is controlled to be closed, the third gate valve 7 is controlled to be closed and the fourth gate valve 8 is controlled to be opened, the feeding screw conveyor 3 is kept in an opened state, the waste tire blocks in the second screw exhaust conveyor 62 are output to the thermal cracking reaction kettle 10 through the feeding screw conveyor 3, at the moment, waste tire blocks are taken and added from a first feeding hole 11 of the material-dividing screw conveyor 1, a driving motor of the material-dividing screw conveyor 1 is controlled to rotate in the positive direction, so that the waste tire blocks are output from a first discharging hole 12, and the waste tire blocks are continuously filled into the first screw exhaust conveyor 2 by controlling the first gate valve 4 to be opened and controlling the second gate valve 5 to be closed; after the waste tire blocks in the second spiral exhaust conveyor 6 are conveyed, the fourth gate valve 8 is controlled to be closed; and when the first spiral exhaust conveyor 2 is filled with the waste tire blocks, controlling the first gate valve 4 to be closed and controlling the second gate valve 5 to be opened, repeating the steps to enable the second spiral exhaust conveyor 6 to synchronously work, simultaneously opening the feeding spiral conveyor 3 to enable the waste tire blocks in the first spiral exhaust conveyor 2 to be output to the thermal cracking reaction kettle 10 through the feeding spiral conveyor 3, and repeating the steps to enable the first spiral exhaust conveyor 2 and the second spiral exhaust conveyor 6 to alternately work.
On the basis of the steps, in order to further improve the stability of continuous feeding and realize the integration of two groups of output feeding, the continuous feeding method further comprises the following steps: when the first gate valve 4 is controlled to be closed and the second gate valve 5 is controlled to be opened, the waste tire blocks in the first spiral exhaust conveyor 2 are conveyed into the gathering spiral conveyor 9 through the second feeding hole 91, and the driving motor of the gathering spiral conveyor 9 is controlled to rotate in the positive direction, so that the waste tire blocks in the first spiral exhaust conveyor 2 are output into the feeding spiral conveyor 3 through the fourth discharging hole 93;
when the third gate valve 7 is controlled to be closed and the fourth gate valve 8 is controlled to be opened, the waste tire blocks in the second spiral exhaust conveyor 6 are conveyed into the gathering spiral conveyor 9 through the third feeding port 92, and the driving motor of the gathering spiral conveyor 9 is controlled to rotate reversely, so that the waste tire blocks in the second spiral exhaust conveyor 6 are output into the feeding spiral conveyor 3 through the fourth discharging port 93.
Claims (7)
1. The utility model provides a continuous feed arrangement of junked tire thermal cracking which characterized in that: the device comprises a material distribution screw conveyor, a first screw exhaust conveyor and a material feeding screw conveyor which are sequentially communicated, wherein the material distribution screw conveyor is provided with a first material inlet and a first material outlet, and the material feeding screw conveyor is provided with a third material outlet communicated with a thermal cracking reaction kettle; the first discharge port of the material-separating screw conveyor is communicated with the feed end of the first screw exhaust conveyor, a first gate valve for sealing the feed end of the first screw exhaust conveyor is arranged between the first discharge port of the material-separating screw conveyor and the feed end of the first screw exhaust conveyor, the discharge end of the first screw exhaust conveyor is communicated with the feed end of the feed screw conveyor, and a second gate valve for sealing the discharge end of the first screw exhaust conveyor is arranged between the discharge end of the first screw exhaust conveyor and the feed end of the feed screw conveyor;
the material distributing screw conveyor is also provided with a second discharge hole, the second discharge hole is communicated with a second screw exhaust conveyor, the discharge end of the second screw exhaust conveyor is communicated with the feed end of the feed screw conveyor, a third gate valve for sealing the feed end of the second screw exhaust conveyor is arranged between the second discharge hole and the feed end of the second screw exhaust conveyor, and a fourth gate valve for sealing the discharge end of the second screw exhaust conveyor is arranged between the discharge end of the second screw exhaust conveyor and the feed end of the feed screw conveyor;
controlling the first flashboard valve to open and controlling the second flashboard valve to close, taking waste tire blocks to be conveyed to the first discharge hole from the first feed port, controlling the first flashboard valve to close and controlling the second flashboard valve to open when the waste tire blocks are filled in the first spiral exhaust conveyor, and simultaneously opening the feeding spiral conveyor to enable the waste tire blocks in the first spiral exhaust conveyor to be output to the thermal cracking reaction kettle through the feeding spiral conveyor;
when the first gate valve is controlled to be closed and the second gate valve is controlled to be opened, the waste tire blocks are taken and conveyed to the second discharge hole through the first feed port, the third gate valve is controlled to be opened and the fourth gate valve is controlled to be closed, when the second spiral exhaust conveyor is filled with the waste tire blocks, the third gate valve is controlled to be closed and the fourth gate valve is controlled to be opened, and meanwhile, the first gate valve is controlled to be opened and the second gate valve is controlled to be closed.
2. The continuous feeding device for thermal cracking of junked tires according to claim 1, characterized in that: the first spiral exhaust conveyor and the second spiral exhaust conveyor are communicated with the feeding spiral conveyor through the collecting spiral conveyor.
3. The continuous feeding device for thermal cracking of junked tires according to claim 2, characterized in that: the material gathering screw conveyor is provided with a second feeding hole, a third feeding hole and a fourth discharging hole, the second feeding hole and the third feeding hole are respectively communicated with the discharging end of the first screw exhaust conveyor and the discharging end of the second screw exhaust conveyor, the fourth discharging hole is communicated with the feeding end of the feeding screw conveyor, the second gate valve is arranged between the discharging end of the first screw exhaust conveyor and the second feeding hole, and the fourth gate valve is arranged between the discharging end of the second screw exhaust conveyor and the third feeding hole;
the material distributing screw conveyor and the material converging screw conveyor are both bidirectional screw conveyors.
4. The utility model provides a junked tire thermal cracking system, includes thermal cracking reation kettle, its characterized in that: the feeding end of the thermal cracking reaction kettle is connected with the continuous feeding device for thermally cracking the waste tires as claimed in any one of claims 1 to 3.
5. A continuous feeding method of thermally cracking junked tires based on the continuous feeding apparatus of thermally cracking junked tires of claim 3, characterized in that: the method comprises the following steps:
the method comprises the steps of adding waste tire blocks from a first feeding hole of a material distribution screw conveyor, controlling a driving motor of the material distribution screw conveyor to rotate in the forward direction, enabling the waste tire blocks to be output from a first discharging hole, controlling a first flashboard valve to open and controlling a second flashboard valve to close, enabling the waste tire blocks to be continuously filled into a first screw exhaust conveyor, controlling the first flashboard valve to close and controlling the second flashboard valve to open when the waste tire blocks are filled in the first screw exhaust conveyor, and simultaneously opening a feeding screw conveyor to enable the waste tire blocks in the first screw exhaust conveyor to be output into a thermal cracking reaction kettle through the feeding screw conveyor.
6. The continuous feeding method for thermal cracking of junked tires according to claim 5, characterized in that: further comprising the steps of: when the first gate valve is closed and the second gate valve is opened, waste tire blocks are taken and added from a first feed inlet of the material distribution screw conveyor, the driving motor of the material distribution screw conveyor is controlled to rotate reversely, the waste tire blocks are output from a second discharge port and are closed by controlling the third gate valve to be closed, the waste tire blocks are continuously filled into the second screw exhaust conveyor, the second screw exhaust conveyor is filled with the waste tire blocks and the waste tire blocks in the first screw exhaust conveyor are conveyed to the feeding screw conveyor, the second gate valve is controlled to be closed, the third gate valve is controlled to be closed, the fourth gate valve is controlled to be opened, the feeding screw conveyor is kept in an open state, and the waste tire blocks in the second screw exhaust conveyor are output into the thermal cracking reaction kettle through the feeding screw conveyor, repeating claim 5 and the above steps simultaneously.
7. The continuous feeding method for thermal cracking of junked tires according to claim 6, characterized in that: further comprising the steps of: when the first gate valve is controlled to be closed and the second gate valve is controlled to be opened, the waste tire blocks in the first spiral exhaust conveyor are conveyed into the gathering spiral conveyor through the second feeding hole, and the driving motor of the gathering spiral conveyor is controlled to rotate in the positive direction, so that the waste tire blocks in the first spiral exhaust conveyor are output into the feeding spiral conveyor through the fourth discharging hole;
when the third gate valve is controlled to be closed and the fourth gate valve is controlled to be opened, the waste tire blocks in the second spiral exhaust conveyor are conveyed into the gathering spiral conveyor through the third feeding port, the driving motor of the gathering spiral conveyor is controlled to rotate reversely, and the waste tire blocks in the second spiral exhaust conveyor are output into the feeding spiral conveyor through the fourth discharging port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501631.XA CN108441242B (en) | 2018-05-23 | 2018-05-23 | Spiral exhaust type continuous feeding device and method for waste tire thermal cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US11999920B2 (en) | 2020-09-14 | 2024-06-04 | Ecolab Usa Inc. | Cold flow additives for plastic-derived synthetic feedstock |
| CN113717550B (en) * | 2021-08-25 | 2022-07-15 | 中策橡胶集团股份有限公司 | Device and method for preparing environment-friendly carbon black by pyrolyzing waste tire rubber particles |
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| US5714043A (en) * | 1995-09-14 | 1998-02-03 | Tire Recycling Technologies Corp. | Liquid seal bulk feeder for destructive distillation |
| US7743912B2 (en) * | 2005-08-05 | 2010-06-29 | Finley Dana J | Liquid seal bulk feeder for destructive distillation of lightweight materials |
| CN201458375U (en) * | 2009-07-31 | 2010-05-12 | 上海绿人生态经济科技有限公司 | Automatic feeding device for scrap tire cracking furnace |
| KR100939105B1 (en) * | 2009-08-20 | 2010-01-28 | 대명엔텍(주) | A pair axis screw pusher having solid transfer equipment |
| CN101880999A (en) * | 2010-06-24 | 2010-11-10 | 陕西长大实业有限公司 | Two-crawler material paving machine |
| CN103182335B (en) * | 2011-12-27 | 2014-11-26 | 刘祝伟 | Agricultural peeling machine |
| CN206392023U (en) * | 2017-01-17 | 2017-08-11 | 青岛科技大学 | A kind of board plug type continuous feeding device cracked for junked tire |
| CN208292937U (en) * | 2018-05-23 | 2018-12-28 | 青岛伊克斯达智能装备有限公司 | Spiral exhaust continuous feeding device and the waste tire thermal splitting system for applying it |
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