Waste plastic catalytic cracking fuel oil device

Abstract

The utility model discloses a waste plastic catalytic cracking fuel oil device which comprises a cracking reaction kettle, a condensing system arranged at one end of an exhaust pipe of the cracking reaction kettle, and a plurality of feeding blocks arranged at the top of the cracking reaction kettle, a plurality of separation feeding mechanisms are arranged at the tops of the feeding blocks, and each separation feeding mechanism comprises a feeding barrel fixed to the top of the corresponding feeding block, a plurality of separation teeth fixed to the inner wall of the feeding barrel and a plurality of supporting frames fixed to the inner side of the feeding barrel; after waste plastics fastened with block masses are fed into the top of the feeding barrel, the block masses can be effectively and gradually separated into smaller particles or fragments through the matching of the power source, the rotating rod, the spiral blade and the separation teeth, so that after the particles or fragments enter the cracking reaction kettle, the efficiency and the uniformity of subsequent catalytic cracking reaction are greatly improved, and the service life of the particles or the fragments is prolonged. The effective contact between the catalyst and the plastic is improved, and the effect of the catalytic cracking reaction is further improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, and in particular to a waste plastic catalytic cracking fuel oil device. Background Technology

[0002] Catalytic cracking technology for waste plastics is an effective way to treat waste plastics, which can convert waste plastics into fuel oil or other high-value-added chemicals. This not only helps reduce the pollution of plastic waste to the environment, but also enables the effective reuse of resources.

[0003] Traditional waste plastic catalytic cracking devices typically involve directly feeding the collected waste plastics into a reactor for heating and decomposition. However, the plastics undergoing catalytic cracking are often compacted clumps of waste plastics that have undergone hot pressing and are easy to transport. Because these plastic clumps have a dense structure and are not easily dispersed, heat conduction is uneven during the cracking process, and the interior of the plastic clumps is difficult to be fully heated, thereby reducing cracking efficiency and product quality. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a waste plastic catalytic cracking fuel oil device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a waste plastic catalytic cracking fuel oil device, comprising: a cracking reactor, a condensation system disposed at one end of the exhaust pipe of the cracking reactor, and a plurality of feed blocks disposed at the top of the cracking reactor;

[0006] The top of the feed blocks is provided with a plurality of separating feed mechanisms. The separating feed mechanism includes: a feed cylinder fixed to the top of the feed blocks, a plurality of separating teeth fixed to the inner wall of the feed cylinder, and a plurality of support frames fixed to the inner side of the feed cylinder; a rotating rod is provided between the plurality of support frames, a spiral blade is fixed to the side of the rotating rod, and a power source for driving the rotating rod to rotate is provided on the top of the support frame.

[0007] The pyrolysis reactor is used to heat and decompose waste plastics, and the condensation system is used to condense the oil and gas in the gas after plastic pyrolysis into liquid.

[0008] In a preferred embodiment of this utility model, the feed cylinder is hollow and frustum-shaped, and a plurality of the separating teeth radiate from the bottom of the feed cylinder to the top. The rotating rod is rotatably connected to the inner side of a plurality of the support frames via bearings on the sides near both ends.

[0009] In a preferred embodiment of this utility model, the plurality of separating teeth are evenly distributed in a circular array in the planar direction, and in a linear array in the vertical direction.

[0010] In a preferred embodiment of this utility model, the power source includes: a servo motor installed on the top of the support frame; the output end of the servo motor is fixed to the top end of the rotating rod.

[0011] In a preferred embodiment of this utility model, the servo motor is fixed to the top of the support frame by bolts.

[0012] In a preferred embodiment of the present invention, a sealing assembly is provided on the feed block. The sealing assembly includes: a translation groove formed on one side of the feed block, and a sealing plate slidably connected to the inner side of the translation groove; driving devices are installed on both sides of the feed block, and the driving end of the driving device is fixed to the side of the sealing plate located outside the translation groove, for driving the sealing plate to move linearly along the translation groove.

[0013] In a preferred embodiment of this utility model, the inner side of the translation groove is in communication with the inner side of the feed block.

[0014] In a preferred embodiment of this invention, the width and height of the sealing plate are the same as the width and height of the translation groove.

[0015] In a preferred embodiment of this utility model, the driving device is one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0016] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0017] (1) This utility model provides a waste plastic catalytic cracking fuel device. By setting a separation feeding mechanism on the top of the feed block, when the tightly packed waste plastic is put into the top of the feed cylinder, the clump of plastic can be effectively separated into smaller particles or fragments through the cooperation of the power source, rotating rod, spiral blade and separation teeth. Thus, after entering the cracking reactor, it not only greatly improves the efficiency and uniformity of the subsequent catalytic cracking reaction, but also improves the effective contact between the catalyst and the plastic, further enhancing the effect of the catalytic cracking reaction.

[0018] (2) In this utility model, by setting a sealing component on the feed block, after the waste plastic is fed into the pyrolysis reactor, the sealing plate and the translation groove cooperate through the drive device, the sealing plate and the translation groove. Since the width and height of the sealing plate are the same as those of the translation groove, the sealing effect is ensured. When the sealing plate moves, the sealing plate can completely cover the opening of the translation groove to form a seal, thereby effectively preventing gas leakage in the pyrolysis reactor and improving the reliability and safety during operation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0021] Figure 2 This is a diagram showing the distribution of several separating teeth inside the feed cylinder according to a preferred embodiment of the present invention.

[0022] Figure 3 This is a partial enlarged view of the structure at the connection between the sealing plate and the feed block in a preferred embodiment of this utility model;

[0023] In the figure: 1. Cracking reactor; 2. Feed block; 3. Separation feeding mechanism; 31. Feed cylinder; 32. Separation teeth; 33. Support frame; 34. Rotating rod; 35. Spiral blade; 4. Servo motor; 5. Sealing assembly; 51. Translation groove; 52. Sealing plate; 53. Drive device. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] like Figure 1 and Figure 2 As shown, a waste plastic catalytic cracking fuel oil device includes: a cracking reactor 1, a condensation system disposed at one end of the exhaust pipe of the cracking reactor 1, and a plurality of feed blocks 2 disposed at the top of the cracking reactor 1; a plurality of separation feed mechanisms 3 are disposed at the top of the plurality of feed blocks 2, and the separation feed mechanism 3 includes: a feed cylinder 31 fixed to the top of the feed blocks 2, a plurality of separation teeth 32 fixed to the inner wall of the feed cylinder 31, and a plurality of support frames 33 fixed to the inner side of the feed cylinder 31; a rotating rod 34 is disposed between the plurality of support frames 33, a spiral blade 35 is fixed to the side of the rotating rod 34, and a power source for driving the rotating rod 34 to rotate is disposed at the top of the support frame 33; the cracking reactor 1 is used to heat and decompose waste plastics, and the condensation system is used to condense the oil and gas in the gas after plastic cracking into liquid.

[0026] It should be noted that the feed cylinder 31 is a hollow inverted frustum shape, and several separating teeth 32 radiate from the bottom of the feed cylinder 31 to the top. The rotating rod 34 is rotatably connected to the inner side of several support frames 33 near both ends through bearings. In the planar direction, the separating teeth 32 are evenly distributed in a circumferential array, and in the vertical direction, the separating teeth 32 are evenly distributed in a linear array. When the tightly packed clumps of waste plastic are fed into the top of the feed cylinder 31, the rotating rod 34 is driven by a power source to rotate the spiral blades 35, causing the spiral blades 35 to rotate. The plastic clumps are driven downwards. Since the feed cylinder 31 is hollow and truncated cone-shaped, and several separation teeth 32 radiate from the bottom to the top of the feed cylinder 31, the plastic clumps are driven downwards by the spiral blades 35. As they pass through the gradually decreasing space, the separation teeth 32 effectively separate the clumps of plastic into smaller particles or fragments. Thus, after entering the cracking reactor 1, this not only greatly improves the efficiency and uniformity of the subsequent catalytic cracking reaction, but also improves the effective contact between the catalyst and the plastic, further enhancing the effect of the catalytic cracking reaction.

[0027] In some embodiments, the power source includes a servo motor 4 mounted on top of the support frame 33; the output end of the servo motor 4 is fixed to the top end of the rotating rod 34.

[0028] It should be noted that the servo motor 4 is installed and fixed on the top of the support frame 33 by bolts; as a power source, the servo motor 4 is fixed on the support frame 33 by bolts, and its output end is fixed to the top of the rotating rod 34. The servo motor 4 has the ability to precisely control the speed and position, which can ensure that the rotating rod 34 and the spiral blade 35 rotate at a stable speed and direction, thereby achieving uniform material conveying.

[0029] like Figure 1 and Figure 3 As shown, in some embodiments, a sealing assembly 5 is provided on the feed block 2. The sealing assembly 5 includes: a translation groove 51 opened on one side of the feed block 2, and a sealing plate 52 slidably connected to the inner side of the translation groove 51; a driving device 53 is installed on both sides of the feed block 2, and the driving end of the driving device 53 is fixed to the side of the sealing plate 52 located outside the translation groove 51, for driving the sealing plate 52 to move linearly along the translation groove 51.

[0030] It should be noted that the inner side of the translation trough 51 is connected to the inner side of the feed block 2; the width and height of the sealing plate 52 are the same as the width and height of the translation trough 51; after the waste plastic is fed into the pyrolysis reactor 1, the sealing plate 52 can move linearly along the translation trough 51 by the drive device 53. Since the width and height of the sealing plate 52 are the same as the translation trough 51, the sealing effect is ensured. When the sealing plate 52 moves, it can completely cover the opening of the translation trough 51 to form a seal, thereby effectively preventing gas leakage in the pyrolysis reactor 1 and improving the reliability and safety of operation.

[0031] In some embodiments, the drive device 53 is one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod; the drive device 53 drives the sealing plate 52 to move in a straight line along the translation groove 51, which can be achieved by technical means known to those skilled in the art, and therefore will not be described in detail here.

[0032] In use, the tightly packed clumps of waste plastic are fed into the top of the feed cylinder 31. A servo motor 4, mounted on the top of the support frame 33, drives the rotating rod 34 to rotate the spiral blades 35. The spiral blades 35 push the plastic clumps downwards. Due to the hollow, inverted frustum-shaped structure of the feed cylinder 31 and the radially spreading separation teeth 32 from bottom to top, the plastic clumps are effectively separated into smaller particles or fragments by the separation teeth 32 in the gradually decreasing space. These separated plastic particles or fragments then enter the pyrolysis reactor 1 for heating and decomposition. Simultaneously, the gas generated in the pyrolysis reactor 1 enters the condensation system through the exhaust pipe, where the oil and gas in the gas are condensed into liquid fuel oil. Furthermore, after feeding, the sealing assembly 5 on the feed block 2 drives the sealing plate 52 to move linearly along the translation groove 51 via the drive device 53, completely covering the opening of the translation groove 51 to form a seal, effectively preventing gas leakage from the pyrolysis reactor 1 and ensuring reliability and safety during operation. This achieves efficient catalytic pyrolysis of waste plastics and condensation and collection of fuel oil.

[0033] Based on the above description and the preferred embodiments of this utility model, it will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste plastic catalytic cracking fuel oil device, characterized in that, include: The pyrolysis reactor (1), a condensation system provided at one end of the exhaust pipe of the pyrolysis reactor (1), and several feed blocks (2) provided at the top of the pyrolysis reactor (1); A plurality of separating feeding mechanisms (3) are provided on the top of a plurality of feeding blocks (2). The separating feeding mechanism (3) includes: a feeding cylinder (31) fixed on the top of the feeding block (2), a plurality of separating teeth (32) fixed on the inner wall of the feeding cylinder (31), and a plurality of support frames (33) fixed on the inner side of the feeding cylinder (31); a rotating rod (34) is provided between the plurality of support frames (33), a spiral blade (35) is fixed on the side of the rotating rod (34), and a power source for driving the rotating rod (34) to rotate is provided on the top of the support frame (33); The pyrolysis reactor (1) is used to heat and decompose waste plastics, and the condensation system is used to condense the oil and gas in the gas after plastic pyrolysis into liquid.

2. The waste plastic catalytic cracking fuel oil device according to claim 1, characterized in that: The feed cylinder (31) is hollow and frustum-shaped. Several of the separating teeth (32) radiate from the bottom of the feed cylinder (31) to the top. The rotating rod (34) is rotatably connected to the inner side of several of the support frames (33) near both ends through bearings.

3. The waste plastic catalytic cracking fuel oil device according to claim 1, characterized in that: In the planar direction, the separation teeth (32) are evenly distributed in a circular array, and in the vertical direction, the separation teeth (32) are evenly distributed in a linear array.

4. The waste plastic catalytic cracking fuel oil device according to claim 1, characterized in that: The power source includes a servo motor (4) mounted on the top of the support frame (33); the output end of the servo motor (4) is fixed to the top end of the rotating rod (34).

5. The waste plastic catalytic cracking fuel oil device according to claim 4, characterized in that: The servo motor (4) is fixed to the top of the support frame (33) by bolts.

6. The waste plastic catalytic cracking fuel oil device according to claim 1, characterized in that: A sealing assembly (5) is provided on the feed block (2). The sealing assembly (5) includes: a translation groove (51) opened on one side of the feed block (2) and a sealing plate (52) slidably connected to the inside of the translation groove (51). A driving device (53) is installed on both sides of the feed block (2). The driving end of the driving device (53) is fixed to the side of the sealing plate (52) located outside the translation groove (51) and is used to drive the sealing plate (52) to move linearly along the translation groove (51).

7. The waste plastic catalytic cracking fuel oil device according to claim 6, characterized in that: The inner side of the translation groove (51) is connected to the inner side of the feed block (2).

8. The waste plastic catalytic cracking fuel oil device according to claim 6, characterized in that: The width and height of the sealing plate (52) are the same as the width and height of the translation groove (51).

9. The waste plastic catalytic cracking fuel oil device according to claim 6, characterized in that: The drive device (53) is one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod.

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