CN114100522B - Internal rotation type waste rubber and plastic thermal cracking equipment - Google Patents
Internal rotation type waste rubber and plastic thermal cracking equipment Download PDFInfo
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- CN114100522B CN114100522B CN202111431700.2A CN202111431700A CN114100522B CN 114100522 B CN114100522 B CN 114100522B CN 202111431700 A CN202111431700 A CN 202111431700A CN 114100522 B CN114100522 B CN 114100522B
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- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 33
- 229920003023 plastic Polymers 0.000 title claims abstract description 33
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 59
- 239000002893 slag Substances 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000010079 rubber tapping Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000010920 waste tyre Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/008—Pyrolysis reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1862—Stationary reactors having moving elements inside placed in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The application discloses internal rotation type waste rubber and plastic thermal cracking equipment, and belongs to the field of waste rubber and plastic thermal cracking equipment. The device comprises a first reaction kettle and a second reaction kettle, wherein the first reaction kettle is connected with the second reaction kettle through a linear expansion device in the middle of a kettle body; the linear expansion device in the middle of the kettle body comprises a ripple compensator, a first flange, a second flange, a supporting plate, a cylinder, a spring sleeve and a tension spring; the left side of the ripple compensator is connected with the kettle body of the first reaction kettle through a first flange, the right side of the ripple compensator is connected with the kettle body of the second reaction kettle through a second flange, the supporting plates are correspondingly distributed along the circumference of the first flange and the second flange, the cylinders are respectively fixed on a plurality of supporting plates, the spring sleeve is arranged between the two cylinders which are correspondingly arranged, and the tension spring is sleeved in the spring sleeve. The application is applied to the thermal cracking of waste rubber and plastic, solves the problem that the existing thermal cracking reaction equipment cannot give consideration to the treatment capacity and the operation stability, and has the characteristics of large treatment capacity, difficult deformation of a kettle body and stable operation.
Description
Technical Field
The application belongs to the field of waste rubber and plastic thermal cracking equipment, and particularly relates to internal rotation type waste rubber and plastic thermal cracking equipment.
Background
The popularization of the vehicle is convenient for people's life and also makes great contribution to industrial development. However, the treatment of waste automobiles, especially waste tires and waste plastics, becomes a serious environmental problem over the service life. The waste tires and waste plastics belong to artificially synthesized organic matters, cannot be naturally degraded, and are not only huge in environmental damage, but also waste in resources if being improperly recycled. The data show that about 4 hundred million waste tires are produced in China, about 1400 ten thousand tons of waste plastics are not recycled each year, the recycling rate is only 25%, and the direct resource waste is up to 280 hundred million yuan/year, so that great value can be created if the waste plastics can be reasonably utilized.
The thermal cracking technology is a chemical recovery technology for recovering and treating solid waste such as waste rubber, waste plastics and household garbage, and is characterized in that waste plastics are heated and cracked under the condition of no oxygen or oxygen deficiency to crack high polymers into low molecular substances, so as to obtain gasoline, kerosene, diesel oil fractions, part of pyrolysis gas and the like. The waste plastic thermal cracking technology on one hand relieves the pollution problem caused by waste plastic, on the other hand realizes the recycling of waste plastic, represents the important direction of the current waste plastic recycling treatment, and has profound significance.
However, the existing waste rubber and plastic thermal cracking treatment equipment has the problem of low treatment yield caused by limited treatment capacity of a reaction kettle, and the problem of unstable equipment operation caused by heat expansion and cold contraction and overlong length can be caused by increasing the length of the reaction kettle or adding a new reaction kettle to increase the treatment capacity.
Disclosure of Invention
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application.
The application provides internal rotation type waste rubber and plastic thermal cracking equipment, solves the technical problem that the existing thermal cracking reaction equipment cannot achieve both the treatment capacity and the operation stability, and has the characteristics of large treatment capacity, difficult deformation of a kettle body and stable operation.
The application discloses internal rotation type waste rubber and plastic thermal cracking equipment which comprises a first reaction kettle and a second reaction kettle which are connected in series, wherein the kettle body of the first reaction kettle is connected with the kettle body of the second reaction kettle through a linear expansion device in the middle of the kettle body; the device for expanding the middle part of the kettle body further comprises
A ripple compensator;
the left side of the ripple compensator is connected with the kettle body of the first reaction kettle through the first flange;
the right side of the ripple compensator is connected with the kettle body of the second reaction kettle through the second flange;
the support plates are correspondingly distributed along the circumferential directions of the first flange and the second flange;
the number of the air cylinders is the same as that of the supporting plates, and a plurality of the air cylinders are respectively fixed on a plurality of the supporting plates;
the spring sleeve is arranged between the two cylinders which are correspondingly arranged;
and the tensioning spring is sleeved in the spring sleeve.
In some of these embodiments, further comprising
The first transmission assembly is arranged at the left side of the first reaction kettle;
the second transmission assembly is arranged on the right side of the second reaction kettle;
the fixing seat is used for fixing the first transmission assembly and the second transmission assembly.
In some of these embodiments, further comprising
The first screw shaft is arranged in the first reaction kettle and is connected with the first transmission assembly;
the second screw shaft is arranged in the second reaction kettle and is connected with the second transmission assembly;
and the hanging shaft connecting assembly is used for connecting the first screw shaft and the second screw shaft.
In some of these embodiments, the hanger shaft connection assembly further comprises
The outer hexagonal tenon piece is arranged between the first screw shaft and the second screw shaft;
the sliding bearing is sleeved in the middle of the outer hexagonal tenon;
the outer hexagon is arranged at two ends of the outer hexagon tenon piece and is connected with the inner hexagon mortise at the right end of the first screw shaft and the inner hexagon mortise at the left end of the second screw shaft.
In some of these embodiments, the hanger shaft connection assembly further comprises
The bearing seat is used for fixedly mounting the sliding bearing;
the bearing seat is arranged at the center of the fixed ring;
and the support is connected with the bearing seat and the fixing ring.
In some embodiments, the number of the support plates is 16, the number of the supports is 3, and the 3 supports are uniformly distributed along the circumferential direction of the fixing ring.
In some embodiments, the device further comprises a feeding device and a slag tapping device.
In some embodiments, the feeding device comprises an automatic air blocking screw machine, and non-equidistant screw blades are arranged in the automatic air blocking screw machine.
In some embodiments, the slag tapping device comprises a primary slag tapping self-blocking screw machine and a secondary slag tapping screw machine which are connected in sequence.
In some embodiments, the secondary slag tapping screw is in skid-mounted walking mode.
Compared with the prior art, the application has the beneficial effects that:
the application provides internal rotation type waste rubber and plastic thermal cracking equipment, which is characterized in that a linear expansion device is arranged in the middle of a kettle body, and a plurality of groups of bidirectional thrust cylinders are arranged at the upper part of the linear expansion device and are used for ensuring that the kettle body can automatically stretch and contract to ensure the normal operation of the kettle body when the kettle body Wen Xianzhang on the left side and the right side is high; the screw shaft and the hanging shaft connecting component adopt mortise and tenon structures for transmission, and linear expansion between the shaft and the sleeve due to high temperature can be compensated through the mortise and tenon structures; has the characteristics of large treatment capacity, difficult deformation of the kettle body and stable operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic structural diagram of an internal rotation type waste rubber and plastic thermal cracking device provided by an embodiment of the application;
FIG. 2 is a schematic diagram of a device for linear expansion in the middle of a tank body according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a device for linear expansion in the middle of a tank body according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a hanging shaft connecting assembly according to an embodiment of the present application;
FIG. 5 is a schematic view of another embodiment of a hanger connection assembly;
FIG. 6 is an assembled schematic diagram of an embodiment of the present application;
description of the drawings: 1. a first reaction kettle; 2. a second reaction kettle; 3. a middle linear expansion device; 31. a ripple compensator; 32. a first flange; 33. a second flange; 34. a support plate; 35. a cylinder; 36. a spring sleeve; 37. tensioning a spring; 4. a first transmission assembly; 5. a second transmission assembly; 6. a fixing seat; 7. a first screw shaft; 8. a second screw shaft; 91. an outer hexagonal tenon; 92. a sliding bearing; 93. an outer hexagon; 94. a bearing seat; 95. a fixing ring; 96. supporting; 10. a feeding device; 11. and a slag discharging device.
Detailed Description
The present application will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present application without making any inventive effort, are intended to fall within the scope of the present application.
It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the application can be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a," "an," "the," and similar referents in the context of the application are not to be construed as limiting the quantity, but rather as singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in connection with the present application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., "a and/or B" may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.
The embodiment of the application provides internal rotation type waste rubber and plastic thermal cracking equipment, and fig. 1 is a schematic structural diagram of the internal rotation type waste rubber and plastic thermal cracking equipment according to the embodiment of the application. Referring to FIG. 1, the equipment at least comprises a first reaction kettle 1 and a second reaction kettle 2 which are connected in series, wherein the kettle body of the first reaction kettle 1 is connected with the kettle body of the second reaction kettle 2 through a kettle body middle linear expansion device 3; as shown in fig. 2 and 3, the mid-tank linear expansion device 3 further comprises a ripple compensator 31, a first flange 32, a second flange 33, a supporting plate 34, a cylinder 35, a spring sleeve 36 and a tensioning spring 37; the left side of the ripple compensator 31 is connected with the kettle body of the first reaction kettle 1 through the first flange 32, the right side of the ripple compensator 31 is connected with the kettle body of the second reaction kettle 2 through the second flange 33, a plurality of supporting plates 34 are correspondingly distributed along the circumference of the first flange 32 and the second flange 33, the number of the air cylinders 35 is the same as that of the supporting plates 34, the number of the supporting plates 34 and the number of the air cylinders 35 are 16, a plurality of air cylinders 35 are respectively fixed on a plurality of the supporting plates 34, a spring sleeve 36 is arranged between the two air cylinders 35 which are correspondingly arranged, and a tensioning spring 37 is sleeved in the spring sleeve 36. The device is provided with the linear expansion device 3 in the middle of the kettle body, and a plurality of groups of bidirectional thrust cylinders 35 are arranged at the upper part of the linear expansion device and used for ensuring normal operation of the kettle body when the kettle body Wen Xianzhang on the left side and the right side is ensured. The expansion device 3 in the middle of the kettle body belongs to a compensation element, and utilizes the effective expansion deformation of the corrugated pipe of the working main body of the expansion device to be matched with the air cylinder 35 so as to absorb the dimensional change of the kettle body caused by expansion with heat, contraction with cold and the like. Specifically, when the tank body at the left and right sides rises to the middle and expands, the ripple compensator 31 is extruded to shrink to the middle, and the push rods of the air cylinders 35 at the left and right sides push the tension springs 37 in the spring sleeve 36 to compress; on the contrary, when the kettle bodies at the left side and the right side shrink due to temperature reduction, the ripple compensator 31 is driven to stretch, the ripple compensator 31 is prevented from being torn due to the fact that the general friction force is large when the kettle bodies shrink, the tension of the light leaning tension spring 37 is insufficient to enable the ripple compensator 31 to safely displace, and meanwhile, the air cylinders 35 at the two sides are used for assisting to ensure that the ripple compensator 31 stretches according to the set technical parameters.
The reaction kettle further comprises a first transmission assembly 4 arranged on the left side of the first reaction kettle 1, a second transmission assembly 5 arranged on the right side of the second reaction kettle 2, and a fixing seat 6 for fixing the first transmission assembly 4 and the second transmission assembly 5. Adopt two-way branch driven mode, avoided because of the easy drawback that causes interior screw axis bending deformation of cauldron body overlength, utilize fixing base 6 to fix the feed end and the slag tap end on cauldron body left side and right side respectively, the linear expansion that two cauldron bodies produced all is to the centre removal, guaranteed that feed end and slag tap end can not produce the phenomenon of displacement. Optionally, the first transmission assembly 4 is installed on a fixed seat 6 (transmission base) of the first reaction kettle 1, and is sequentially connected with a transmission coupling, a transmission bearing seat 94, a shaft sleeve and a bearing bracket of the first reaction kettle 1, the bearing bracket of the first reaction kettle 1 is connected with an end cover of the first reaction kettle 1, a left flange of a barrel of the first reaction kettle 1 is connected with an end cover flange of a kettle body, and a right flange of the barrel of the first reaction kettle 1 is connected with a left flange of a linear expansion device 3 in the middle of the kettle body; the flange of the right barrel of the second reaction kettle 2 is connected with the end cover on the right side of the reaction kettle, a shaft sleeve, a bearing seat 94 and a transmission coupling are arranged on the end cover of the reaction kettle, and the flange on the left side of the barrel of the second reaction kettle 2 is connected with the flange on the right side of the linear expansion device 3 in the middle of the kettle body.
Further, the reactor further comprises a first screw shaft 7, a second screw shaft 8 and a hanging shaft connecting assembly for connecting the first screw shaft 7 and the second screw shaft 8, wherein the first screw shaft 7 is arranged in the first reaction kettle 1 and is connected with the first transmission assembly 4, and the second screw shaft 8 is arranged in the second reaction kettle 2 and is connected with the second transmission assembly 5. As shown in fig. 4, 5 and 6, the hanging shaft connecting assembly further comprises an outer hexagonal tenon 91, a sliding bearing 92, an outer hexagonal 93, a bearing seat 94, a fixing ring 95 and a support 96, wherein the outer hexagonal tenon 91 is arranged between the first screw shaft 7 and the second screw shaft 8, the sliding bearing 92 is sleeved at the middle part of the outer hexagonal tenon 91, the outer hexagonal 93 is arranged at two ends of the outer hexagonal tenon 91 and is connected with an inner hexagonal mortise at the right end of the first screw shaft 7 and an inner hexagonal mortise at the left end of the second screw shaft 8, the bearing seat 94 is used for fixedly mounting the sliding bearing 92, the bearing seat 94 is arranged at the center of the fixing ring 95, and the support 96 is connected with the bearing seat 94 and the fixing ring 95. The screw shaft and the hanging shaft connecting assembly are driven by a mortise and tenon structure, linear expansion generated by high temperature between the shaft and the sleeve can be compensated by the mortise and tenon structure, and the device has the characteristics of large treatment capacity, difficult deformation of the kettle body and stable operation. The screw conveyer is characterized in that the screw conveyer drives the material to move by means of rotation of the screw blades, when the conveying length of the screw conveyer is too long, the screw shafts collapse due to materials and the like, so that when the screw conveyer is too long, the screw shafts with longer disconnection length can be disconnected, and the device is used for avoiding excessive abrasion of the screw conveyer due to the collapse of the screw shafts by adding a hanging shaft connecting assembly between the two screw shafts. Specifically, this hang axle coupling assembling is the main installation of connecting first screw shaft 7 and second screw shaft 8, cauldron body middle part is provided with the outer hexagonal tenon 91 of fixed slip hang axle slip, outer hexagonal tenon 91 middle part and slide bearing 92 cooperate, outer hexagonal tenon 91 both ends are outer hexagonal 93, cooperate with the interior hexagonal mortise on the screw shaft tube, slip compensation when high Wen Xianzhang, slide bearing 92 dress is in slide hang axle lower part bearing frame 94, cover upper portion bearing frame 94 again after installing slide bearing 92, be equipped with the sealed end cover at slide bearing 92 both ends, it prevents tar to get into to be equipped with in the interior dustproof sealing material, still be provided with a plurality of supports 96 on slide hang axle for the fixed, preferably 3, be 45 degrees respectively along hang axle lower part bearing frame 94 central line and set up 1 support 96,3 supports 96 are cooperated with hang axle retainer 95 along the central line, form a complete hang axle system. Regarding the retainer ring 95, the bellows compensator 31 is connected in series by a plurality of bellows, wherein the bellows located in the middle is fixed, the bellows at both ends are telescopic, and the retainer ring 95 is fixedly connected with the bellows located in the middle.
Further, the device also comprises a feeding device 10 and a slag tapping device 11. Wherein, the feeding device 10 comprises an automatic air blocking screw machine, and the inside of the automatic air blocking screw machine is provided with non-equidistant helical blades. Raw materials conveyed from a pretreatment workshop are conveyed to a large storage bin through a conveying scraper, a loading level gauge is vertically arranged on the upper portion of a right storage bin body of the large storage bin, and a discharging level gauge is vertically arranged on the lower portion of the taper of a left storage bin body of the large storage bin. In order to facilitate maintenance and control of discharging, a control flashboard valve is arranged at a discharge hole of the large storage bin. When feeding the thermal cracking reaction kettle, according to the technical requirements of thermal cracking, the materials in the kettle can not be brought into air during feeding, and the high-temperature oil vapor in the kettle is absolutely not allowed to flow out. Otherwise, safety accidents are easily caused. The feeding automatic air blocking screw machine fully considers the characteristics during design, the screw blades of the feeding automatic air blocking screw machine adopt unequal-distance blades, and the compression and the release are carried out to achieve the effect of automatic air blocking. The feeding inlet of the feeding automatic air blocking screw machine is vertically arranged on the upper part of the screw cylinder body and is vertically connected with the flange on the lower part of the control flashboard valve, and the feeding automatic air blocking screw connecting flange is axially connected with the feeding inlet of the internal rotation type cracking reaction kettle.
The slag discharging device 11 comprises a primary slag discharging self-blocking spiral machine and a secondary slag discharging spiral machine which are connected in sequence. Specifically, a slag outlet is vertically arranged at the lower part of the left side of the kettle body of the second reaction kettle 2, slag after cracking enters a collecting bin, a feeding level gauge is vertically arranged at the upper part of the right side of the slag collecting bin, and a discharging level gauge is vertically arranged at the lower part of the left side of the bin. The slag collecting large bin slag hole is connected with the feeding hole of the primary slag discharging screw machine, and the discharging hole of the primary slag discharging screw machine is connected with the feeding hole of the secondary slag discharging screw machine. The blanking port of the secondary slag tapping screw machine is vertically arranged on the right side, and the secondary slag tapping screw machine is arranged at the end part on the right side in a transmission way. The secondary slag tapping screw machine is designed into a skid-mounted walking mode according to the requirement, so that the whole maintenance is convenient.
The working process of the internal rotation type waste rubber and plastic thermal cracking equipment is as follows:
materials enter the first reaction kettle 1 and the second reaction kettle 2 in sequence for high-temperature pyrolysis, and during the period, when the kettle body at the left side and the right side rises to the middle and expands linearly, the corrugated compensator 31 is extruded to shrink to the middle, and push rods of the cylinders 35 at the left side and the right side push the tension springs 37 in the spring sleeve 36 to compress; on the contrary, when the kettle bodies at the left side and the right side shrink due to temperature reduction, the ripple compensator 31 is driven to stretch, the ripple compensator 31 is prevented from being torn due to the fact that the general friction force is large when the kettle bodies shrink, the tension of the light leaning tension spring 37 is insufficient to enable the ripple compensator 31 to safely displace, and meanwhile, the air cylinders 35 at the two sides are used for assisting to ensure that the ripple compensator 31 stretches according to the set technical parameters.
The reactor of the equipment adopts a multi-stage structure, the modules can be arbitrarily increased, the yield is improved, an internal rotation propulsion mode is adopted, the accumulation of materials in the reactor body and the defect of coking of the inner wall of the reactor body are avoided, the service life of the equipment is prolonged, the equipment is compared with external rotation type thermal cracking equipment, front-back dynamic and static sealing devices are reduced, the equipment can be operated by adopting positive pressure, and the leakage risk of oil steam is avoided.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. An internal rotation type waste rubber and plastic thermal cracking device is characterized in that: the device comprises a first reaction kettle and a second reaction kettle which are connected in series, wherein the kettle body of the first reaction kettle is connected with the kettle body of the second reaction kettle through a linear expansion device in the middle of the kettle body; the device for expanding the middle part of the kettle body further comprises
A ripple compensator;
the left side of the ripple compensator is connected with the kettle body of the first reaction kettle through the first flange;
the right side of the ripple compensator is connected with the kettle body of the second reaction kettle through the second flange;
the support plates are correspondingly distributed along the circumferential directions of the first flange and the second flange;
the number of the air cylinders is the same as that of the supporting plates, and a plurality of the air cylinders are respectively fixed on a plurality of the supporting plates;
the spring sleeve is arranged between the two cylinders which are correspondingly arranged;
the tensioning spring is sleeved in the spring sleeve;
the first transmission assembly is arranged at the left side of the first reaction kettle;
the second transmission assembly is arranged on the right side of the second reaction kettle;
the fixing seat is used for fixing the first transmission assembly and the second transmission assembly.
2. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 1, wherein: and also comprises
The first screw shaft is arranged in the first reaction kettle and is connected with the first transmission assembly;
the second screw shaft is arranged in the second reaction kettle and is connected with the second transmission assembly;
and the hanging shaft connecting assembly is used for connecting the first screw shaft and the second screw shaft.
3. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 2, wherein: the hanging shaft connecting assembly further comprises
The outer hexagonal tenon piece is arranged between the first screw shaft and the second screw shaft;
the sliding bearing is sleeved in the middle of the outer hexagonal tenon;
an outer hexagonal body arranged at two ends of the outer hexagonal tenon piece and connected with the inner hexagonal mortise at the right end of the first screw shaft and the fourth screw shaft
The left end of the two screw shafts is connected with the inner hexagonal mortise.
4. An internal rotation type waste rubber and plastic thermal cracking device according to claim 3, wherein: the hanging shaft connecting assembly further comprises
The bearing seat is used for fixedly mounting the sliding bearing;
the bearing seat is arranged at the center of the fixed ring;
and the support is connected with the bearing seat and the fixing ring.
5. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 1, wherein: the device also comprises a feeding device and a slag discharging device.
6. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 5, wherein: the feeding device comprises an automatic air blocking screw machine, and non-equidistant screw blades are arranged in the automatic air blocking screw machine.
7. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 5, wherein: the slag discharging device comprises a primary slag discharging self-blocking spiral machine and a secondary slag discharging spiral machine which are connected in sequence.
8. The internal rotation type waste rubber and plastic thermal cracking equipment according to claim 7, wherein: the secondary slag discharging screw machine is in a skid-mounted walking mode.
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| CN202111431700.2A CN114100522B (en) | 2021-11-29 | 2021-11-29 | Internal rotation type waste rubber and plastic thermal cracking equipment |
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| CN202111431700.2A CN114100522B (en) | 2021-11-29 | 2021-11-29 | Internal rotation type waste rubber and plastic thermal cracking equipment |
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| CN114100522B true CN114100522B (en) | 2023-09-26 |
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