CN103333709A - Disc-type microwave continuous splitting device and method for splitting waste rubber - Google Patents
Disc-type microwave continuous splitting device and method for splitting waste rubber Download PDFInfo
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- CN103333709A CN103333709A CN201310263370XA CN201310263370A CN103333709A CN 103333709 A CN103333709 A CN 103333709A CN 201310263370X A CN201310263370X A CN 201310263370XA CN 201310263370 A CN201310263370 A CN 201310263370A CN 103333709 A CN103333709 A CN 103333709A
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- 239000002699 waste material Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 29
- 238000005336 cracking Methods 0.000 claims description 128
- 239000000047 product Substances 0.000 claims description 52
- 239000007787 solid Substances 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 26
- 238000009795 derivation Methods 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 19
- 239000012265 solid product Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000010920 waste tyre Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 35
- 239000003921 oil Substances 0.000 description 29
- 230000008569 process Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000007017 scission Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000003776 cleavage reaction Methods 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 5
- 238000000197 pyrolysis Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002101 lytic effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000012962 cracking technique Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention discloses a disc-type microwave continuous splitting device. The disc-type microwave continuous splitting device comprises a feeding assembly, a microwave splitting assembly, a discharging assembly and a control assembly which are sequentially communicated with one another, wherein the microwave splitting assembly comprises a microwave generator, a nonmetal sealing plate, a splitting cavity, a rotating disk and a disk driving motor, the nonmetal sealing plate is used for dividing the splitting cavity into an upper part and a lower part, the rotating disk is arranged at the lower part of the splitting cavity and is matched with the disk driving motor in a driving rotation manner, and the microwave generator is arranged on a circular flange on the splitting cavity. The invention aslo discloses a method for splitting waste rubber by using the splitting device; the disc-type splitting cavity is adopted in the method and is divided into an upper cavity and a lower cavity through the nonmetal sealing plate, so that the microwave splitting efficiency of waste tires is improved; and in order to ensure the stable operation of a disk and prevent the high-temperature deformation, one or a plurality of annular guide rails are arranged on the lower surface of the rotating disk and are used for supporting the rotating disk, so that the rotating disk rotates on a guide rail so as to optimize the splitting effect.
Description
Technical field
The present invention relates to cracker and the cleavage method of a kind of waste old or tire, particularly a kind of apparatus and method that adopt microwave heating to carry out scission reaction.
Background technology
For a long time, the technology that waste old or tire are for recycling and reuse is a global difficult problem always.At present, the whole world has tens00000000 tires to scrap every year.China's tire annual production surpasses 100,000,000, occupies the third place in the world.The annual junked tire that produces reaches then up to more than 5,000 ten thousand, surplus the weight 140 ten thousand tons.A large amount of junked tires are dropped or air storage or landfill.Increase along with cars ' entry into family and car owning amount, the turnout of junked tire just enters the stage of increasing rapidly, how tire is effectively recycled, and prevents from environment is caused direct pollution and secondary pollution, also is the problem that presses for solution during China's waste resource is recycled.
Rubber tyre belongs to the hydrocarbon polymeric material of polymer, and it is the high molecular polymer that the hydroxyl class in the petroleum products constitutes through polyreaction.Usually adopt pyrolysis technology to recycle, thermo-cracking refers to make it cracking by heating in the presence of catalyzer, and the thermo-cracking temperature reaches as high as 750 ℃, and the tire thermal cracking processes need consume a large amount of heat energy.Traditional burning and pyrolysis are oxidation and pyroprocess, control that can not homogeneous " contrary poly-" process, and follow secondary environment to pollute.In addition, pyrolysis technology is as the approach of handling the damaged tire problem, the defective that also has complex process, namely want mostly earlier the annular steel wire in the damaged tire to be pulled out, again damaged tire is cut into piece, drop in pyrolyzer or the cleavage column and carry out hot anneal crack solution, processing link is many, Production Flow Chart is long, and whole efficiency is low.
The microwave cracking technology is the newer cracking technique that development in recent years is got up.Normally in 150～350 ℃ inert nitrogen body environment, utilize micro-wave energy that chemical bond is disconnected, open the high molecular polymer macromolecular chain, and obtain liquid oil, combustion gas and carbon black by separation.Its inert nitrogen environment has been avoided organic oxidising process, has stoped the generation as toxic substances such as furans.The control of this counterincision solution environment has improved the stable quality of various recovery products, particularly carbon black greatly.Therefore, it is fairly obvious that the tire microwave cracking is compared the thermo-cracking advantage.
At present both at home and abroad more existing patent reports some tire microwave cracking equipment and technology.As: CN102140362A has put down in writing a kind of waste old automatic microwave scission reaction device, it is characterized in that: it is made up of automatic control system, variable-frequency motor, screw-pushing type microwave cracking reaction warehouse, pneumatic airtight automatic feed valve combination and the pneumatic airtight valve combination of slagging tap, and microwave magnetron evenly is located on the outer wall of screw-pushing type microwave cracking reaction warehouse both sides; Pneumatic airtight automatic feed valve combination is located at the feed end of screw-pushing type microwave cracking reaction warehouse, the pneumatic airtight valve combination of slagging tap is located at the discharge end of screw-pushing type microwave cracking reaction warehouse, is provided with stock distributor at the opening for feed of pneumatic airtight automatic feed valve combination; Pneumatic airtight automatic feed valve combination is identical with the pneumatic airtight valve combination structure of slagging tap, and forms by two Pneumatic gate valves and transitional storehouse, and two Pneumatic gate valves are located at the transitional storehouse two ends respectively; Variable-frequency motor is connected on the rotation axis of spiral propeller.
And for example: disclose the method and apparatus that utilizes microwave decomposition waste old or junked tire among the WO2005/073344A1, it is characterized in that, adopt tower reactor, and be provided with discharge equipment that magnetic control means, oil cooling coagulate container, generator, oil tank, control panel, nitrogen supply (NS) pipeline, carbon black and steel wire, feed device, desulfurization unit, distillation unit, nitrogen bomb, under meter, vacuum recovery unit, pulverizer etc.
In the above prior art, all have the following disadvantages: microwave cracking device processing efficiency is low, the technology controlling and process difficulty, and lytic cycle is longer, and lytic effect has much room for improvement.
Summary of the invention
Technical problem to be solved by this invention is: a kind of employing microwave heating cracking is provided, and automatic feed is slagged tap automatically, quantity-produced waste rubber cracking apparatus and cleavage method, this equipment total closed type is produced continuously, and rate of cleavage is fast, volume is little, and treatment capacity is big, and is safe and efficient.
Solving the technical scheme that problem of the present invention takes is:
A kind of disc type microwave continuous cracker, comprise supply assembly, microwave cracking assembly, discharging assembly and control unit, they are communicated with successively, the microwave cracking assembly comprise microwave generator, nonmetal sealing plate, cracking cavity, rotating-disk, disk drive-motor, nonmetal sealing plate is separated into two portions up and down with the cracking cavity, rotating-disk in the bottom of cracking cavity, drive rotation with the disk drive-motor and cooperate, microwave generator is arranged on the circular flange above the cracking cavity.
Supply assembly comprises storage tank, rotary unloading valve, the discharging assembly comprises cracking oil gas downstream end, solid split product derivation machine, solid split product receiving hopper, feed screw, oil gas finishing apparatus, storage tank is communicated with the cracking cavity through the rotary unloading valve, the cracking cavity is communicated with the oil gas finishing apparatus through outgoing gas connection tube, the solid split product is derived machine one end and is communicated with the cracking cavity, and the solid split product is derived the machine the other end and is communicated with solid split product receiving hopper, spiral discharging machine successively.
The rotary unloading valve is driven by the reducing motor of Frequency Converter Control, and it imports and exports section is trapezoidal, and blade-carrying rotor is taper, and valve body cooperates with rotor and forms seal cavity.
The last base of trapezoid cross section is near the center of cracking cavity, and the bottom is near the edge of cracking cavity, and the height in cross section highly is slightly less than the radius of cracking cavity along the radial direction of cracking cavity and its.
Microwave generator arranges array, be evenly arranged on the circular flange on cracking cavity top, and be provided with water-chilling plant, Packed air insulated chamber between circular flange and the nonmetal sealing plate, be provided with the cavity of placing decomposing materials between rotating-disk and the nonmetal sealing plate, be provided with the circular guideway for its rotation below the rotating-disk, the rotating-disk center is provided with the drive shaft with the reducing motor transmission.
Solid split product derivation machine is made up of derivation screw rod, derivation screw channel, derivation drive-motor, derives screw rod and is positioned at the derivation screw channel, and this solid split product derivation machine integral body is made by the high temperature resistant stainless steel material.
Solid split product receiving hopper is provided with high and low level gage and water-chilling plant, and its top is led machine outlet with the solid split product and is connected, and the bottom is connected with the spiral discharging machine entrance.
Spiral discharging machine is made up of discharging screw rod, discharging screw channel, discharging water-chilling plant and discharging drive-motor, and the discharging screw rod is positioned at the discharging screw channel, and the discharging screw flight is reducing-pitch thread, and the discharging water-chilling plant is arranged on discharging screw channel and/or the discharging screw rod.
Also provide a kind of junked tire cleavage method to comprise waste old is processed into bulk or powdery, pour in the storage tank and store, driving the rotary unloading valve makes waste old pass nonmetal sealing plate to be delivered on the rotating-disk equably continuously, the microwave that microwave generator sends pass nonmetal sealing plate from top to bottom, uniaxially is injected into and carries out cracking on the waste old, splitting gas and solid product by being arranged on cracking cavity side the splitting gas outlet and cracking after the eliminating of solid product drawing mechanism.
The rotating speed of the stir shaft of installing in the rotary unloading valve is 5～15rpm, the rotating speed of rotating-disk is 0.01～0.1rpm, the laying depth of waste old on rotating-disk is 5～15cm, temperature in the cracking cavity is 300～350 ℃, the cracking cavity pressure is 50～250Pa, the cracking time is 20～60min, the rotating speed of deriving screw rod is 5～15rpm, cold the going to 180～220 ℃ of solid split product temperature in solid split product receiving hopper, whether the spiral discharging machine that is obliquely installed rotates by height level gage control disposed thereon, rotation when being in high position material, stall when being in the low level material, rotating speed during rotation is 5～15rpm, and the spiral water-chilling plant control drop temperature of spiral discharging machine is less than 100 ℃.
Compare with prior art, the present invention adopts disc type cracking cavity, and be divided into up and down cavity by nonmetal sealing plate, the microwave cracking assembly of this structure has improved junked tire microwave cracking efficient, and for guaranteeing the disk running steadily, prevent high temperature deformation, at the lower surface of rotating-disk one or several ring-shaped guide rail can be set also, in order to supporting rotating-disk, and it is rotated at guide rail optimize lytic effect.
Description of drawings
Fig. 1 is the overall shaft side figure of present device.
Fig. 2 is that the rotary unloading valve is disassembled synoptic diagram.
Fig. 3 is that the microwave cracking assembly is disassembled synoptic diagram.
Fig. 4 is solid split product receiving hopper structural representation.
Fig. 5 is the schematic layout pattern of disc type microwave continuous cracker.
Among the figure, 1. opening for feed; 2. whipping appts; 3. storage tank; 4. service platform; 5. microwave generator; 6. outgoing gas connection tube; 7. rotating-disk; 8. rotary unloading valve; 9. the solid split product is derived machine; 10. solid split product receiving hopper; 11. spiral discharging machine; 12. solid discharge port; 13. blanking drive-motor; 14. following material rotor; 15. drive end assembly; 16. blanking valve body; 17. driven end assembly; 18. microwave generator; 19. circular flange; 20. nonmetal sealing plate; 21. cavity opening for feed; 22. rotating-disk; 23. oil gas vent; 24. cracking cavity; 25. derivation screw channel; 26. derivation drive-motor; 27. derivation screw rod; 28. disk drive-motor; 29. drive shaft; 30. discharging drive-motor; 31. discharging driven unit; 32. discharging screw rod; 33. discharge port; 34. discharging refrigerating unit; 35. low level gage; 36. high charge level meter.
Embodiment
As shown in drawings, the present invention includes and relate to a kind of disc type microwave continuous cracker, comprise supply assembly, the microwave cracking assembly, discharging assembly and control unit, they are communicated with successively, the microwave cracking assembly comprises microwave generator 18, nonmetal sealing plate 20, cracking cavity 24, rotating-disk 22, disk drive-motor 28, nonmetal sealing plate 20 is separated into two portions up and down with cracking cavity 24, rotating-disk 22 is in the bottom of cracking cavity 24, drive rotation with disk drive-motor 28 by drive shaft 29 and cooperate, microwave generator 18 is arranged on the circular flange 19 above the cracking cavity.
Supply assembly comprises storage tank 3, rotary unloading valve 8, the discharging assembly comprises cracking oil gas outgoing gas connection tube 6, solid split product derivation machine 9, solid split product receiving hopper 10, spiral discharging machine 11, oil gas finishing apparatus, storage tank is communicated with cracking cavity 24 through rotary unloading valve 8, cracking cavity 24 is communicated with the oil gas finishing apparatus through outgoing gas connection tube 6, the solid split product is derived machine 9 one ends and is communicated with cracking cavity 24, and the solid split product is derived machine 9 the other ends and is communicated with solid split product receiving hopper 10, spiral discharging machine 11 successively.
Waste old or tire through pulverizing are delivered on the rotating-disk 22 by opening for feed continuously equably, the ripple that microwave generator 5 sends passes nonmetal sealing plate 20 and is injected into and makes it in the process of rotation cracking take place on the waste old on the rotating-disk, and cracking oil gas and pyrolysis solid product are discharged from cracking oil gas vent and pyrolysis solid product outlet respectively.
Microwave generator 5 is made up of array.Microwave generator 5 is evenly arranged evenly on upper circular flange 19, and its water flowing is cooled off.During work according to the variation of cracking temperature, can standard-sized sheet or part open microwave generator 5.Can select the microwave generator of a plurality of smaller powers such as 1kw for use, also can select a small amount of more high-power microwave generator as 10kw for use.
Nonmetal sealing plate 20 is avoided entering in the microwave generator at the inflammable gas that the lower section cracking produces in order to the two portions up and down that are separated into the cracking chamber, avoids the microwave generator temperature to raise simultaneously.Nonmetal sealing plate requires to select the good material of wave penetrate capability for use, is generally quartz or mullite is made.
The cracking cavity is cylindrical structural, and housing adopts metallic substance, external insulation.The housing top of cracking cavity connects circular flange, on the upper circular flange microwave generator is set.Fix nonmetal sealing plate 20 below the upper circular flange, have an air insulated chamber of sealing between upper circular flange 19 and the following fixing nonmetal sealing plate 20.The place of keeping at a certain distance away arranges a rotatable rotary disk 22 below the nonmetal sealing plate, and this spacing can satisfy the needs of cracking maximum ga(u)ge waste old.There is a drive shaft to link to each other with the rotating-disk center, drives the rotating-disk rotation by the disk drive-motor 28 that is arranged on outside, cracking chamber by drive shaft 29.For guaranteeing the disk running steadily, prevent high temperature deformation, also one or several ring-shaped guide rail can be set at the lower surface of rotating-disk, in order to supporting rotating-disk, and it is rotated at guide rail.
The side of the housing of cracking cavity be positioned at rotating-disk above, sealing plate below locate to have one or several cracking oil gas vents 23, the oil gas that cracking produces is derived by this outlet, be communicated with oil gas outgoing gas connection tube 6, and follow-up oil gas treatment system can be set as required, the oil gas of deriving is carried out refrigerated separation.The outlet of solid split product is positioned at the side of cracking cavity shell.
Described supply assembly comprises storage tank 3 and e Foerderanlage.Storage tank 3 is positioned at cracking cavity 24 tops.Waste old physical dimension is powdery or bulk (particle size≤10cm), for avoiding blanking inequality, not smooth in storage tank, be provided with whipping appts 2 in jar.Middle and lower part at storage tank is provided with level gage, in order to detect the position of waste old in jar, to prevent from lacking material.Also in order to set up the material envelope, prevent that the cracking oil gas that may reveal from overflowing simultaneously.During work, reducing motor drives one and is positioned at jar agitator arm that the center vertical an is arranged rotation, and it is adjustable that stirring velocity can utilize frequency transformer that the reducing motor frequency conversion is realized, the discharge port of tank body bottom connects rotary unloading valve 8.Agitator shaft speed is adjustable in the 5-15rpm scope, and reducing motor rotates with the rotation of rotary unloading valve.The volume of storage tank is decided on cracking ability and fabricating yard size.The rotary unloading valve is taper, realize waste old continuously, blanking equably, main body has resistant to elevated temperatures stainless material to make.Rotary unloading valve 8 is driven by reducing motor, and it imports and exports section is trapezoidal, and blade-carrying rotor is taper.It is adjustable that the blanking amount can utilize frequency transformer to change the realization of reducing motor output speed.Between rotor and the valve body good sealing is arranged in case crack arrest solution oil gas is revealed.Rotary unloading valve upper interface is connected with the storage tank discharge port, and the bottom interface is connected with trapezoidal material receiving port above the cylindrical cracking cavity, and waste old can pass nonmetal sealing plate 20 from storage tank 3 after by rotary unloading valve 8 and directly fall on the rotating-disk 22.The last base (minor face) of trapezoidal material receiving port is near the center of cracking cavity, bottom (long limit) edge near the cracking cavity, and trapezoidal height highly is slightly less than the radius of cracking cavity along the radial direction of cracking cavity and its.The rotor of pyramidal structure and trapezoidal interface are to be evenly distributed at rotating-disk for the waste old thickness that guarantees to fall on the disk.
Described output section comprises the derivation of solid split product machine 9, solid split product receiving hopper 10 and the spiral discharging machine 11 that links to each other with the outlet of solid split product.
The solid split product is derived machine 9 and is arranged on cracking cavity 24 inside, outlet is arranged on the side of cracking cavity housing, extend to its outside via the discharge port that is arranged on cracking cavity shell side, comprise mainly deriving screw rod 27, derive screw channel 25 and deriving drive-motor 26 that material of main part adopts resistant to elevated temperatures stainless steel.Derive screw rod 25 and derive screw channel 25 and be positioned at the inside of cracking cavity in disk upper edge radial arrangement.Deriving screw speed can utilize frequency transformer to realize adjustable to the reducing motor frequency conversion.Derive the screw channel approximate half-circular, towards solid split product side.Derive the screw channel lower rim and be close to the rotating-disk surface.In the time of the rotating-disk rotation, the derivation screw rod that the solid split product is derived machine 9 also will rotate, and rotating speed is adjustable in the 5-50rpm scope.The outlet that the solid split product is derived machine 9 links to each other with solid split product receiving hopper 10.
Solid split product receiving hopper 10 is provided with low level gage 35, high charge level meter 36 and water-chilling plant, and its top is connected with the outlet of solid split product derivation machine, and the bottom is connected with the spiral discharging machine entrance.Judge according to the detected solid split product of high and low level gage material level situation of living in that in struggling against when arriving high charge level, spiral discharging machine rotation discharging arrives when hanging down material level, spiral discharging machine stops discharging.Keep in the bucket material being arranged always, stop splitting gas and pass, thereby set up the first road material envelope.Receiving hopper can be provided with the jacketed type water cooling, the solid split product is temporary in receiving hopper, on the one hand it tentatively is cooled to about 200 ℃ of temperature, sets up defective material envelope on the other hand, avoid oil and gas leakage, control to keep certain storing amount by two level gages of height.The receiving hopper outlet is positioned at the bottom, is connected with the feed screw that is obliquely installed
Spiral discharging machine 11 entrances are connected with solid split product receiving hopper 10 discharge ports, and outlet connects tr or warehouse.Spiral discharging machine 11 comprises discharging screw rod 32, discharging screw channel, water-chilling plant and discharging drive-motor 30.Discharging screw rod 32 rotating speeds can utilize frequency transformer to realize adjustable to the reducing motor frequency conversion.The discharging screw flight is the convergence form, to set up the second road material envelope, further stops may revealing of splitting gas.The design of discharging screw channel has water-cooling structure, and the inner chamber of discharging screw shaft also will be designed to water-cooling structure in case of necessity, reaches requirement with the cooling temperature of guaranteeing the solid split product.The spiral discharging machine rotating speed is adjustable in the 5-50rpm scope.Whether it rotates by the high and low level gage control that is arranged on the receiving hopper, rotates when being in high charge level, is in stall when hanging down material level.
Control and molar behavior control that described control device comprises microwave generator realize setting and the control of input microwave power; The setting of blanking amount, fabric thickness and control; The setting of cracking time, temperature, pressure and control; Each drives speed setting and the control of reducing motor; The statistics of energy expenditure and cracking ability and form etc.Whole cracking process can be realized operate continuously by control device.
The present invention also provides and has used above-mentioned disc type microwave
ContinuouslyThe method of cracker cracking waste old or tire comprises:
(the waste old raw material of size≤10cm) is poured in the storage tank and stores will to be ground into powdery or bulk;
Raw material through the rotary unloading valve, by being arranged on the opening for feed that the cracking top of chamber also extends through upper flange and nonmetal sealing plate (being top, cracking chamber) downwards, is delivered on the rotating-disk under the stirring action of the stir shaft of storage tank;
Along with the rotary unloading of rotary unloading valve, rotating-disk rotates simultaneously;
Being arranged on microwave generator on the upper circular flange sends microwave and passes nonmetal sealing plate and be mapped to and make it carry out cracking on the raw material; Cracking oil gas and solid product by being arranged on cracking cavity side the cracking oil gas vent and cracking after the solid product drawing mechanism derive.Because the rotary unloading valve is trapezoidal cross-section, its rotor is taper, thereby can lay waste old at disk equably continuously.Rotor speed is adjustable in the 5-15rpm scope, and disc rotation speed is adjustable in the 0.1-0.01rpm scope, and waste old is adjustable in the 5-15cm scope at the laying depth on the disk.The blanking ability can realize by the rotating speed of regulating the rotary unloading valve rotor, and the rotating speed that the laying depth of waste old on disk can be by regulating the rotary unloading valve rotor simultaneously and the rotating speed of disk realize that rate of cleavage can realize by the rotating speed of regulating disk.The microwave that microwave generator sends pass nonmetal sealing plate from top to bottom, uniaxially is injected into and makes it carry out cracking on the waste old.The cracking cavity is provided with thermopair and pressure unit, detects body of wall temperature inside and pressure change in real time by control device.According to the characteristics of microwave, cracking can be carried out under than the lower temperature of conventional thermo-cracking mode.As: cracking temperature can carry out under 300-350 ℃.Can be little negative pressure in the cracking cavity, preferred cracking pressure carries out under 50-250Pa.So both can promote the quality of cracked oil, can alleviate the pressure that makes the cooling of split product post drop again, save energy consumption.Temperature control in the cracking process can realize by the quantity of regulating the microwave generator unlatching.Pressure-controlling can realize by the rotating speed (not marking among the figure) that adjusting is arranged on the blower fan on the pipeline that connects cracking cavity oil gas vent and after-treatment device.The cracking time is according to the kind of waste old, size, laying depth etc. and different.Generally in the 20-60min scope.Obtain three kinds of products behind the waste rubber cracking, be respectively: inflammable gas, liquid oils and carbon black.The ratio of products therefrom is approximately inflammable gas 40%(weight), liquid oils 10%(weight), carbon black (comprising other solids component) 50%(weight).The cracking oil gas of deriving can enter into oil gas after-treatment device (figure does not mark) via pipeline, adopts conventional equipment of the prior art to get final product, and does not repeat them here.
Rotating-disk whenever rotates a circle, and namely finishes cracking process one time.Begin just to begin to enter cracking process from stone on rotating-disk, cracking process finished after disk rotated a circle, and the solid product after the cracking will be exported.Because the blanking of waste old is continuous, so the derivation of the solid product after cracking conveying also is continuous.The solid split product machine of deriving can adopt spiral to derive form, in the time of the disk rotation, derives the machine screw rod and also will rotate, and rotating speed is adjustable in the 5-50rpm scope.The solid split product is temporary in receiving hopper, on the one hand it tentatively is cooled to about 200 ℃ of temperature, sets up defective material envelope on the other hand, avoids oil and gas leakage.Control to keep certain storing amount by high and low two level gages.The receiving hopper outlet is positioned at the bottom, is connected with the spiral discharging machine that is obliquely installed.The rotating speed of spiral discharging machine is adjustable in the 5-50rpm scope.Whether it rotates by the height level gage control that is arranged on the receiving hopper, rotates when being in high charge level, is in stall when hanging down material level.Screw channel can be designed to the jacketed type water cooling, guaranteeing drop temperature less than 100 ℃, thereby prevents that the solid split product from contacting afterwards the too high and spontaneous combustion of Yin Wendu with air.
Claims (10)
1. disc type microwave continuous cracker, comprise supply assembly, microwave cracking assembly, discharging assembly and control unit, they are communicated with successively, it is characterized in that: the microwave cracking assembly comprise microwave generator, nonmetal sealing plate, cracking cavity, rotating-disk, disk drive-motor, nonmetal sealing plate is separated into two portions up and down with the cracking cavity, rotating-disk in the bottom of cracking cavity, drive rotation with the disk drive-motor and cooperate, microwave generator is arranged on the circular flange above the cracking cavity.
2. according to the described disc type microwave continuous of claim 1 cracker, it is characterized in that: supply assembly comprises storage tank, the rotary unloading valve, the discharging assembly comprises cracking oil gas outgoing gas connection tube, the solid split product is derived machine, solid split product receiving hopper, spiral discharging machine, the oil gas finishing apparatus, storage tank is communicated with the cracking cavity through the rotary unloading valve, the cracking cavity is communicated with the oil gas finishing apparatus through outgoing gas connection tube, the solid split product is derived machine one end and is communicated with the cracking cavity, the solid split product derivation machine the other end successively with solid split product receiving hopper, spiral discharging machine is communicated with.
3. according to claim 1 or 2 described disc type microwave continuous crackers, it is characterized in that: the rotary unloading valve is driven by the reducing motor of Frequency Converter Control, it imports and exports section is trapezoidal, and blade-carrying rotor is taper, and valve body cooperates with rotor and forms seal cavity.
4. according to the described disc type microwave continuous of claim 3 cracker, it is characterized in that: the last base of trapezoid cross section is near the center of cracking cavity, the bottom is near the edge of cracking cavity, and the height in cross section highly is slightly less than the radius of cracking cavity along the radial direction of cracking cavity and its.
5. according to claim 1 or 2 described disc type microwave continuous crackers, it is characterized in that: microwave generator arranges array, be evenly arranged on the circular flange on cracking cavity top, and be provided with water-chilling plant, Packed air insulated chamber between circular flange and the nonmetal sealing plate, be provided with the cavity of placing decomposing materials between rotating-disk and the nonmetal sealing plate, be provided with the circular guideway for its rotation below the rotating-disk, the rotating-disk center is provided with the drive shaft with the reducing motor transmission.
6. according to the described disc type microwave continuous of claim 2 cracker, it is characterized in that: the solid split product is derived machine and is made up of derivation screw rod, derivation screw channel, derivation drive-motor, derive screw rod and be positioned at the derivation screw channel, this solid split product is derived machine integral body and is made by the high temperature resistant stainless steel material.
7. according to the described disc type microwave continuous of claim 2 cracker, it is characterized in that: solid split product receiving hopper is provided with high and low level gage and water-chilling plant, its top is led machine outlet with the solid split product and is connected, and the bottom is connected with the spiral discharging machine entrance.
8. according to the described disc type microwave continuous of claim 2 cracker, it is characterized in that: spiral discharging machine is made up of discharging screw rod, discharging screw channel, discharging water-chilling plant and discharging drive-motor, the discharging screw rod is positioned at the discharging screw channel, the discharging screw flight is reducing-pitch thread, and the discharging water-chilling plant is arranged on discharging screw channel and/or the discharging screw rod.
9. the method for the described disc type microwave continuous of claim 1 a cracker cracking waste old, it is characterized in that: comprise waste old is processed into bulk or powdery, pour in the storage tank and store, driving the rotary unloading valve makes waste old pass nonmetal sealing plate to be delivered on the rotating-disk equably continuously, the microwave that microwave generator sends pass nonmetal sealing plate from top to bottom, uniaxially is injected into and carries out cracking on the waste old, splitting gas and solid product by being arranged on cracking cavity side the splitting gas outlet and cracking after the eliminating of solid product drawing mechanism.
10. according to the method for the described cracking waste old of claim 9, it is characterized in that: the rotating speed of the stir shaft of installing in the rotary unloading valve is 5～15rpm, the rotating speed of rotating-disk is 0.01～0.1rpm, the laying depth of waste old on rotating-disk is 5～15cm, temperature in the cracking cavity is 300～350 ℃, the cracking cavity pressure is 50～250Pa, the cracking time is 20～60min, the rotating speed of deriving screw rod is 5～15rpm, cold the going to 180～220 ℃ of solid split product temperature in solid split product receiving hopper, whether the spiral discharging machine that is obliquely installed rotates by height level gage control disposed thereon, rotation when being in high position material, stall when being in the low level material, the rotating speed during rotation are 5～15rpm, and the spiral water-chilling plant control drop temperature of spiral discharging machine is less than 100 ℃.
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| CN201310263370.XA CN103333709B (en) | 2013-06-28 | 2013-06-28 | Disc-type microwave continuous splitting device and method for splitting waste rubber |
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| CN201310263370.XA CN103333709B (en) | 2013-06-28 | 2013-06-28 | Disc-type microwave continuous splitting device and method for splitting waste rubber |
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| CN103333709B CN103333709B (en) | 2015-01-28 |
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| CN103980534A (en) * | 2014-05-15 | 2014-08-13 | 重庆市聚益橡胶制品有限公司 | Feeding device of regenerated rubber desulfurization tank |
| CN105295452A (en) * | 2015-10-28 | 2016-02-03 | 贵州安泰再生资源科技有限公司 | Method for preparing low-ash-content carbon black through waste tire |
| CN105329875A (en) * | 2015-10-28 | 2016-02-17 | 贵州安泰再生资源科技有限公司 | Method for preparing carbon black by desulfurizing waste tires at low temperature through ammonia method |
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| CN105733644A (en) * | 2016-03-14 | 2016-07-06 | 四川宏图普新微波科技有限公司 | Tire rubber pyrolysis method combining pyrolysis gas circulation heating and microwaves |
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| CN106675662A (en) * | 2015-11-05 | 2017-05-17 | 中国石油化工股份有限公司大连石油化工研究院 | Continuous material pyrolysis gasification device |
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| CN111752209A (en) * | 2020-06-17 | 2020-10-09 | 中国科学院合肥物质科学研究院 | Control system of microwave cracking furnace |
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| CN105733644A (en) * | 2016-03-14 | 2016-07-06 | 四川宏图普新微波科技有限公司 | Tire rubber pyrolysis method combining pyrolysis gas circulation heating and microwaves |
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| CN105771809A (en) * | 2016-05-03 | 2016-07-20 | 江苏大学 | Semi-continuous microwave catalytic thermal cracking reactor |
| CN108285261A (en) * | 2018-03-20 | 2018-07-17 | 中国石油大学(北京) | Microwave treatment oily sludge equipment and its processing method |
| CN108285261B (en) * | 2018-03-20 | 2024-02-06 | 中国石油大学(北京) | Device for treating oily sludge by microwaves and treatment method thereof |
| CN111359570A (en) * | 2020-02-28 | 2020-07-03 | 宁波诺丁汉新材料研究院有限公司 | Annular reactor |
| CN111359569A (en) * | 2020-02-28 | 2020-07-03 | 宁波诺丁汉新材料研究院有限公司 | Disc type reactor |
| CN111752209A (en) * | 2020-06-17 | 2020-10-09 | 中国科学院合肥物质科学研究院 | Control system of microwave cracking furnace |
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