CN212051245U

CN212051245U - Tank type reaction kettle stirring paddle for strengthening oil production by waste plastic thermal cracking

Info

Publication number: CN212051245U
Application number: CN202020657837.4U
Authority: CN
Inventors: 林顺洪; 邓渝川; 杨宇; 郭大江; 杨鲁; 柏继松; 季炫宇; 王江林
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-12-01
Anticipated expiration: 2030-04-26

Abstract

The utility model relates to the technical field of stirring paddles, and provides a tank type reaction kettle stirring paddle for strengthening the oil production by waste plastic thermal cracking, which comprises a bracket; the inner shaft is arranged inside the groove type reaction kettle along the longitudinal direction; the outer cylinder is sleeved at the upper end of the inner shaft; the guide ring is arranged inside the groove type reaction kettle along the transverse direction; the paddle frame is arranged on the outer side of the inner shaft and the outer side of the outer barrel; the first driving device is used for driving the inner shaft and the outer cylinder to rotate; and the second driving device comprises a ratchet wheel, a sliding block, a movable rod, a first pawl, a second pawl, a first tension spring and a second tension spring, the sliding block is far away from the ratchet wheel in a first working state, the first pawl slips on the ratchet wheel, the second pawl drives the ratchet wheel to rotate, the sliding block is close to the ratchet wheel in a second working state, the second pawl slips on the ratchet wheel, and the first pawl drives the ratchet wheel to rotate. The utility model provides a pair of reinforce groove type reation kettle stirring rake of waste plastics thermal cracking system oil makes its stirring effect to the plastics melt in the reation kettle better.

Description

Tank type reaction kettle stirring paddle for strengthening oil production by waste plastic thermal cracking

Technical Field

The utility model relates to a stirring rake technical field, concretely relates to strengthen groove type reation kettle stirring rake of waste plastics thermal cracking system oil.

Background

At present, the tank type reaction kettle is mainly used for cracking waste plastics to prepare fuel oil in China. Because of the poor thermal conductivity of plastics, the plastics are heated to a molten state by an extruder and then fed into a reaction kettle for thermal cracking, so as to improve the uniformity of heat and mass transfer. It is also necessary to keep the temperature of the plastic uniform at this stage.

The existing stirring paddle has poor stirring effect on plastic melts in a reaction kettle.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a strengthen groove type reation kettle stirring rake of waste plastics thermal cracking system oil, make its stirring effect to the plastics melt in the reation kettle better.

In order to achieve the above purpose, the present invention is implemented by the following technical solutions: a tank type reaction kettle stirring paddle for strengthening oil production by thermal cracking of waste plastics comprises:

the bracket is fixedly arranged at the top of the tank type reaction kettle;

the inner shaft is longitudinally arranged inside the tank type reaction kettle, the upper end of the inner shaft is rotationally connected with the bracket, and the lower end of the inner shaft is rotationally connected with the bottom of the tank type reaction kettle;

the outer cylinder is sleeved on the outer side of the upper end of the inner shaft, and the upper end of the outer cylinder is rotatably connected with the bracket;

the guide ring is transversely arranged in the tank type reaction kettle, the outer side of the guide ring is fixedly connected with the inner wall of the tank type reaction kettle, and the inner side of the guide ring is provided with a plurality of convex parts which are arranged at intervals along the circumferential direction and are convex inwards;

the paddle frames are respectively arranged on the outer side of the inner shaft and the outer side of the outer cylinder, a plurality of longitudinally arranged paddle shafts are arranged in each paddle frame, the paddle shafts are rotationally connected with the paddle frames, a plurality of paddles are arranged on each paddle shaft, a gear is arranged at the upper end of each paddle shaft, and the gears on two adjacent paddle shafts are meshed;

a first drive device disposed within the bracket for driving the inner shaft and the outer barrel to rotate in opposite directions; and

the second driving devices are respectively arranged at the upper ends of the paddle frames in a one-to-one correspondence mode, each second driving device comprises a ratchet wheel, a sliding block, a movable rod, a first pawl, a second pawl, a first tension spring and a second tension spring, the ratchet wheel is fixedly arranged at the upper end of one of the paddle shafts, the sliding block is arranged at the upper end of the paddle frame and can slide on the paddle frame, one end of the movable rod is fixedly connected with the sliding block, the other end of the movable rod is abutted against the inner side of the guide ring, the first pawl and the second pawl are respectively arranged at two sides of the paddle frame, one end of each of the first pawl and the second pawl is rotatably connected with the sliding block, the other end of each of the first pawl and the second pawl is abutted against the ratchet wheel, the first tension spring is sleeved on the movable rod, and the sliding block has a tendency of being far away from the ratchet wheel, the both ends of second extension spring respectively with first pawl and second pawl are connected, second drive arrangement has two operating condition at least, under first operating condition, the slider is kept away from the ratchet, first pawl is in skid on the ratchet, the second pawl drives ratchet rotation, under second operating condition, the slider is close to the ratchet, the second pawl is in skid on the ratchet, first pawl drives ratchet rotation.

Further, the first driving device comprises a first bevel gear, a second bevel gear, a driving shaft and a third bevel gear, the first bevel gear is installed at the upper end of the inner shaft, the second bevel gear is installed at the upper end of the outer cylinder, the driving shaft is transversely arranged, the third bevel gear is installed on the driving shaft, and the third bevel gear is located between the first bevel gear and the second bevel gear and is meshed with the first bevel gear and the second bevel gear.

Further, still including setting up the telescopic link in the second extension spring, the both ends of telescopic link respectively with first pawl with second pawl fixed connection.

Further, the bearing is installed between the inner shaft and the outer cylinder, an inner ring of the bearing is fixedly connected with the inner shaft, and an outer ring of the bearing is fixedly connected with the outer cylinder.

Further, the other end of the movable rod is provided with a universal ball, and the universal ball rolls on the inner side of the guide ring.

Furthermore, a plurality of flow guide holes are formed in the blades.

The utility model has the advantages that: the utility model provides a pair of reinforce slot type reation kettle stirring rake of waste plastics thermal cracking system oil, when a drive arrangement during operation, under the transmission of bevel gear structure, interior axle and urceolus can be rotatory with opposite direction, and then the paddle frame on axle and the urceolus is rotatory in the drive. When the paddle frame rotates, the second driving device can be driven to work, the movable rod can drive the sliding block to do reciprocating motion at the moment, the ratchet wheel is driven to rotate through the first pawl and the second pawl, intermittent motion of the ratchet wheel structure can drive intermittent rotation of the paddle, and therefore the stirring effect of the paddle on plastic melts in the reaction kettle is better.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of a blade frame;

fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Reference numerals: 10-bracket, 20-inner shaft, 30-outer cylinder, 40-guide ring, 41-boss, 50-paddle frame, 51-paddle shaft, 52-paddle, 521-guide hole, 53-gear, 54-driving wheel, 60-first driving device, 61-first bevel gear, 62-second bevel gear, 63-driving shaft, 64-third bevel gear, 70-second driving device, 71-ratchet wheel, 72-sliding block, 73-movable rod, 731-universal ball, 74-first pawl, 75-second pawl, 76-first tension spring, 77-second tension spring, 80-groove type reaction kettle and 90-bearing.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In this application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "horizontal," "top," "bottom," "upper," "lower," "inner" and "outer" and the like are used in the orientation or positional relationship shown in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1-5, the present invention provides a tank reactor stirring paddle for reinforcing thermal cracking of waste plastics to produce oil, which comprises a support 10, an inner shaft 20, an outer cylinder 30, a guide ring 40, a paddle frame 50, a first driving device 60 and a second driving device 70.

The support 10 is fixedly disposed at the top of the tank reactor 80. The inner shaft 20 is longitudinally arranged inside the tank type reaction kettle 80, the upper end of the inner shaft 20 is rotatably connected with the bracket 10, and the lower end of the inner shaft is rotatably connected with the bottom of the tank type reaction kettle 80. The upper end of the outer cylinder 30 is rotatably connected with the bracket 10.

The guide ring 40 is transversely arranged in the groove type reaction kettle 80, the outer side of the guide ring 40 is fixedly connected with the inner wall of the groove type reaction kettle 80, and the inner side of the guide ring 40 is provided with a plurality of arc-shaped protrusions 41 which are arranged at intervals along the circumferential direction and protrude inwards.

A plurality of blade frames 50 are respectively installed outside the inner shaft 20 and the outer cylinder 30, and a plurality of blade shafts 51 arranged longitudinally are installed in each blade frame 50. The paddle shaft 51 is rotatably connected with the paddle frame 50, a plurality of paddles 52 are arranged on the paddle shaft 51, and the paddles 52 can further rotate the plastic melt in the reaction kettle. The upper end of each paddle shaft 51 is fixedly provided with a gear 53, a transmission gear 54 is arranged between the gears 53 on two adjacent paddle shafts 51, the transmission gear 54 is meshed with the adjacent gear 53, and when one paddle shaft 51 rotates, the adjacent paddle shaft 51 can be driven to rotate through the transmission gear 54.

The first driving device 60 is disposed in the bracket 10 for driving the inner shaft 20 and the outer cylinder 30 to rotate in opposite directions, and further the blade frame 50 on the inner shaft 20 and the blade frame 50 on the outer cylinder 30 rotate in opposite directions. Therefore, when the first driving device 60 is operated, the stirring paddles disturb the plastic melt at the upper end and the lower end of the reaction kettle in opposite directions, so that the stirring effect of the plastic melt in the reaction kettle is improved.

The second driving devices 70 are respectively disposed at the upper ends of the plurality of blade frames 50 in a one-to-one correspondence. Specifically, the second driving device 70 includes a ratchet 71, a slider 72, a movable lever 73, a first pawl 74, a second pawl 75, a first tension spring 76, and a second tension spring 77. A ratchet 71 is fixedly mounted on the upper end of one of the blade shafts 51. The slider 72 is provided at the upper end of the paddle frame 50 and can slide on the paddle frame 50, and one end of the movable rod 73 is fixedly connected to the slider 72, and the other end thereof abuts against the inner side of the guide ring 40. The first pawl 74 and the second pawl 75 are respectively arranged on two sides of the paddle frame 50, one end of each of the first pawl 74 and the second pawl 75 is rotatably connected with the slider 72, and the other end of each of the first pawl 74 and the second pawl 75 abuts against the ratchet 71. Preferably, the other end of the first pawl 74 is of a conventional pawl construction and the other end of the second pawl 75 is of a hook construction.

The first tension spring 76 is sleeved on the movable rod 73, and the first tension spring 76 makes the slider 72 have a tendency to be away from the ratchet wheel 71, in this embodiment, one end of the first tension spring 76 is connected with the slider 72, and the other end is connected with the outermost side of the blade frame 50. The second tension spring 77 has both ends connected to the first pawl 74 and the second pawl 75, respectively, and the second tension spring 77 causes the first pawl 74 and the second pawl 75 to have a tendency to approach each other, thereby allowing the first pawl 74 and the second pawl 75 to cooperate with each other.

In the present embodiment, the second driving device 70 has at least two operating states. In the first operating state, the movable rod 73 is located in the groove of the guide ring 40, the first tension spring 76 keeps the slider 72 away from the ratchet 71, the slider 72 drives the first pawl 74 and the second pawl 75 away from the ratchet 71, and the hook structure of the second pawl 75 pulls the ratchet 71 to rotate, and the first pawl 74 slips on the ratchet 71. In the second operating state, the movable rod 73 is located on the protruding portion 41 of the guide ring 40, the protruding portion 41 pushes the slider 72 to approach the ratchet 71, the slider 72 drives the first pawl 74 and the second pawl 75 to approach the ratchet 71, and the first pawl 74 pushes the ratchet 71 to rotate, and the second pawl 75 slips on the ratchet 71. The protruding portions 41 arranged at intervals on the inner side of the guide ring 40 enable the ratchet 71 to intermittently move, so that when the paddle frame 50 rotates, the paddle shaft 51 on the paddle frame 50 can drive the paddle 52 to intermittently rotate, active disturbance of the paddle 52 on the plastic melt in the reaction kettle is increased, and the stirring effect on the plastic melt in the reaction kettle is further improved.

In one embodiment, the first drive 60 is mounted within the carriage 10. Specifically, the first driving means 60 includes a first bevel gear 61, a second bevel gear 62, a driving shaft 63, and a third bevel gear 64. Wherein, a first bevel gear 61 is installed on the upper end of the inner shaft 20, and a second bevel gear 62 is installed on the upper end of the outer cylinder 30. The driving shaft 63 is disposed in a transverse direction, and the driving shaft 63 is driven by a motor. A third bevel gear 64 is mounted on the drive shaft 63, the third bevel gear 64 being located between the first bevel gear 61 and the second bevel gear 62 and meshing with both the first bevel gear 61 and the second bevel gear 62.

When the motor is operated, the third bevel gear 64 drives the first bevel gear 61 and the second bevel gear 62 to rotate in opposite directions, and further drives the inner shaft 20 and the outer cylinder 30 to rotate in opposite directions. The rotation direction of the inner shaft 20 and the outer cylinder 30 can be changed when the motor rotates reversely. This drive device 80 is simple in structure and low in cost.

In one embodiment, the telescopic rod is further disposed in the second tension spring 77, and both ends of the telescopic rod are fixedly connected with the first pawl 74 and the second pawl 75, respectively. When the slider 72 moves closer to or away from the ratchet 71, the first pawl 74 and the second pawl 75 move closer to or away from each other. The telescopic link sets up in second extension spring 77, can make second extension spring 77's position receive the restriction for second extension spring 77's flexible more stable, thereby make first pawl 74 and second pawl 75 the suitability of during operation better.

In one embodiment, a bearing 90 is also included that is mounted between the inner shaft 20 and the outer barrel 30. The inner ring of the bearing 90 is fixedly connected with the inner shaft 20, and the outer ring is fixedly connected with the outer cylinder 30. The design of the bearing 90 can reduce the friction between the inner shaft 20 and the outer cylinder 30, which is beneficial to the stability of the stirring paddle in operation.

In one embodiment, the other end of the movable bar 73 is mounted with a ball 731, and the ball 731 rolls inside the guide ring 40. The ball bearings 731 are always in contact with the inner side of the guide ring 40 by the first tension spring 76, and the ball bearings 731 are arranged to reduce the friction between the movable bar 73 and the guide ring 40, thereby reducing the wear between the movable bar 73 and the guide ring 40.

In one embodiment, the blade 52 has a plurality of guiding holes 521. When the paddle 52 rotates, the diversion hole 521 is formed, on one hand, the disturbance of the stirring paddle on the plastic melt can be further increased, and on the other hand, the plastic melt can pass through the diversion hole 521, so that the resistance between the paddle 52 and the plastic melt during rotation is reduced, and the rotation of the whole stirring paddle is facilitated.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A tank type reaction kettle stirring paddle for strengthening oil production by waste plastic thermal cracking is characterized in that: the method comprises the following steps:

the bracket is fixedly arranged at the top of the tank type reaction kettle;

2. The tank reactor paddle for strengthening thermal cracking of waste plastic to produce oil as claimed in claim 1, wherein: the first driving device comprises a first bevel gear, a second bevel gear, a driving shaft and a third bevel gear, the first bevel gear is installed at the upper end of the inner shaft, the second bevel gear is installed at the upper end of the outer shaft, the driving shaft is transversely arranged, the third bevel gear is installed on the driving shaft, and the third bevel gear is located between the first bevel gear and the second bevel gear and is meshed with the first bevel gear and the second bevel gear.

3. The tank reactor paddle for strengthening thermal cracking of waste plastic to produce oil as claimed in claim 1, wherein: the telescopic rod is arranged in the second tension spring, and two ends of the telescopic rod are fixedly connected with the first pawl and the second pawl respectively.

4. The tank reactor paddle for strengthening thermal cracking of waste plastic to produce oil as claimed in claim 1, wherein: the bearing is arranged between the inner shaft and the outer cylinder, an inner ring of the bearing is fixedly connected with the inner shaft, and an outer ring of the bearing is fixedly connected with the outer cylinder.

5. The tank reactor paddle for strengthening thermal cracking of waste plastic to produce oil as claimed in claim 1, wherein: the other end of the movable rod is provided with a universal ball, and the universal ball rolls on the inner side of the guide ring.

6. The tank reactor paddle for strengthening thermal cracking of waste plastic to produce oil as claimed in claim 1, wherein: the blade is provided with a plurality of flow guide holes.