A roller pyrolysis device

Abstract

The present invention discloses a rolling drum pyrolysis device, which is applied to the field of pyrolysis and includes an equipment frame; a drum, the drum is arranged on the equipment frame, one end of the drum is the feeding end, and the other end is the discharging end; a heating device, the heating device can provide heat to the drum; a driving device, the driving device is in transmission connection with the drum to drive the drum to rotate around its own axis; a roller, the roller is movably placed in the drum, the axis of the roller is parallel to the axis of the drum, and the roller can roll as the drum rotates to crush the materials in the drum; the rolling drum pyrolysis device of the present invention can continuously crush the materials into powder, increase the pyrolysis rate, has a strong throughput capacity for the same volume of materials, and effectively reduces the pretreatment requirements of the materials.

Description

Technical Field

[0001] The present invention relates to the technical field of pyrolysis, and particularly relates to a rolling drum pyrolysis device. Background Art

[0002] Pyrolysis, as a means of treating hazardous waste, pyrolyzes organic matter by anaerobic heating to produce non-condensable gas, tar, carbon slag, etc. Traditional rotary kiln incineration no longer meets the requirements of solid waste treatment.

[0003] The industry's demand for pyrolysis technology has increased, but the application of pyrolysis in the solid waste industry has just started, and there are still many problems to be solved. For example, the pyrolysis efficiency of materials in the furnace is low, and the internal pyrolysis is incomplete; the materials melt or soften at high temperature in the furnace, agglomerate and affect the pyrolysis effect, and the expanded carbon slag formed after the materials melt and pyrolyze covers the surface of the container and affects heat transfer. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a rolling drum pyrolysis device, which can continuously roll materials into powder, increase the pyrolysis rate, has a strong throughput capacity for the same volume of materials, and effectively reduces the pretreatment requirements of materials.

[0005] The rolling drum pyrolysis device according to an embodiment of the present invention includes: an equipment frame;

[0006] A drum, which is arranged on the equipment frame, one end of the drum is a feeding end, and the other end is a discharging end;

[0007] A heating device, which can provide heat to the drum;

[0008] A driving device, which is in transmission connection with the drum to drive the drum to rotate around its own axis;

[0009] Rollers, which are movably placed in the drum, the axis of the rollers is parallel to the axis of the drum, and the rollers can roll as the drum rotates to crush the materials in the drum.

[0010] The rolling drum pyrolysis device according to an embodiment of the present invention has at least the following technical effects: the heating device provides heat to the drum, so that the temperature inside the drum rises to the temperature required for pyrolysis; the materials to be pyrolyzed are put into the inside of the drum through the feeding end, contact with the inner wall of the drum for heat exchange, and pyrolysis occurs; the driving device drives the drum to continuously rotate around its own axis, and at the same time drives the rollers in the drum to roll. When the rollers roll, they continuously crush the materials in the drum, and cooperate with the high-temperature environment. Organic materials will soften at high temperature, become brittle after pyrolysis, and quickly turn into powder after rolling. Metal substances have ductility and are not easily crushed. The mixture of metal and organic powder is easy to separate after being discharged.

[0011] In some embodiments of the present invention, a feeding device is further provided. The feeding device includes a first head and a feeding pipe. The first head is sleeved on the feeding end of the drum and fixed on the equipment frame. There is a movable sealing connection between the first head and the drum, and the drum can rotate relative to the first head. The feeding pipe is arranged on the first head and communicates with the interior of the drum.

[0012] In some embodiments of the present invention, a discharging device is further provided. The discharging device includes a second head, a discharging pipe and a smoke exhaust pipe. The second head is sleeved on the discharging end of the drum and fixed on the equipment frame. There is a movable sealing connection between the second head and the drum, and the drum can rotate relative to the second head. The discharging pipe is arranged at the lower part of the second head and communicates with the interior of the drum. The smoke exhaust pipe is arranged at the upper part of the second head and communicates with the interior of the drum.

[0013] In some embodiments of the present invention, an aggregate hopper is arranged inside the second head. The aggregate hopper is located below the discharging end of the drum and communicates with the discharging pipe to receive the materials discharged from the drum.

[0014] In some embodiments of the present invention, a plurality of rolling teeth parallel to the central axis are arranged on the inner wall of the drum. The rolling teeth are arranged and distributed along the circumferential direction of the drum, and the rolling teeth are located on the rolling path of the rollers.

[0015] In some embodiments of the present invention, the axial length of the roller is less than the axial length of the drum. The roller rolls inside the drum near the feeding end of the drum. A plurality of blades parallel to the central axis are arranged on the inner wall of the drum. The blades are arranged and distributed along the circumferential direction of the drum, and the blades are located on the side far from the feeding end of the drum to avoid the rolling path of the roller.

[0016] In some embodiments of the present invention, a plurality of baffles are arranged on the inner wall of the drum. The baffles are arranged between the blades and the discharging end of the drum. The plate surface of the baffle is perpendicular to the central axis of the drum, and the cross-section of the drum is not closed by the baffle. The baffles are arranged at intervals along the central axis direction of the drum, and two adjacent baffles are located on opposite sides of the inner wall of the drum to form a channel that winds and turns back along the central axis direction inside the drum.

[0017] In some embodiments of the present invention, a plurality of brackets are arranged between the drum and the equipment frame. The upper ends of the brackets are provided with a number of rollers. The axes of the rollers are parallel to the central axis of the drum. The rollers are in contact with the outer wall of the drum to support the rotation of the drum.

[0018] In some embodiments of the present invention, the driving device includes a motor and a driving gear. The driving gear is coaxially arranged on the outer wall of the drum and fixedly connected to the drum. The motor is drivingly connected to the driving gear to drive the driving gear to rotate.

[0019] In some embodiments of the present invention, the heating device includes a combustion chamber. The combustion chamber is arranged on the equipment frame. The interior of the combustion chamber has a combustion chamber. The drum passes through the combustion chamber such that the outer wall of the drum is surrounded by the combustion chamber. A grate is provided in the combustion chamber.

[0020] The additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and understandable from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a cross-sectional view of an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a feeding device according to an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of a discharging device according to an embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of a blade and a baffle according to an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a bracket and a roller according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Equipment frame 100, heating device 110, combustion chamber 111, bracket 120, roller 121;

[0029] Drum 200, rolling teeth 210, blade 220, baffle 230;

[0030] Feeding device 300, first head 310, feeding pipe 320;

[0031] Discharging device 400, second head 410, discharging pipe 420, smoke exhaust pipe 430, aggregate hopper 440;

[0032] Driving device 500, driving gear 510, roller 600, limiting device 610. Detailed Embodiments

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Referring to Figure 1 As shown, the rolling drum pyrolysis device according to an embodiment of the present invention includes: an equipment frame 100;

[0038] A drum 200, the drum 200 is arranged on the equipment frame 100, one end of the drum 200 is a feeding end, and the other end is a discharging end;

[0039] A heating device 110, the heating device 110 can provide heat to the drum 200;

[0040] A driving device 500, the driving device 500 is in transmission connection with the drum 200 to drive the drum 200 to rotate around its own axis;

[0041] Rollers 600, the rollers 600 are movably placed in the drum 200, the axes of the rollers 600 are parallel to the axis of the drum 200, and the rollers 600 can roll as the drum 200 rotates to crush the materials in the drum 200.

[0042] The heating device 110 provides heat to the drum 200, so that the temperature inside the drum 200 rises to the temperature required for pyrolysis; the material to be pyrolyzed is fed into the interior of the drum 200 through the feeding end, contacts the inner wall of the drum 200 for heat exchange, and pyrolysis occurs; the driving device 500 drives the drum 200 to continuously rotate around its own axis, and at the same time drives the rollers 600 inside the drum 200 to roll. When the rollers 600 roll, the material inside the drum 200 is continuously crushed. In cooperation with the high-temperature environment, the organic material will soften at high temperature, become brittle after cracking, and quickly turn into powder after rolling. The metal material has ductility and is not easy to crush. The mixture of metal and organic powder is easy to separate after being discharged.

[0043] It can be understood that, in order to better move the material inside the drum 200 towards the discharging end, one end of the drum 200 can be adjusted to be higher than the other end, that is, the feeding end is higher than the discharging end. Utilizing gravity, while the drum 200 is continuously rotating, the material inside gradually moves towards the discharging end of the drum 200.

[0044] Preferably, a limiting device 610 can also be provided on the roller 600 to limit the axial movement between the roller 600 and the drum 200 and prevent the roller 600 from running off track and failing.

[0045] The limiting device 610 can be a limiting ring or a limiting flange ring, both of which have a diameter larger than that of the roller 600. The limiting ring or the limiting flange ring is arranged at one end of the roller 600 close to the feeding end of the drum 200, so that the limiting ring or the limiting flange ring contacts the end face of the drum 200, that is, the roller 600 extends into the drum 200, and the limiting ring or the limiting flange ring is stuck to move on the end face of the drum 200 to limit the axial deviation of the roller 600 into the drum 200. It can be understood that the limiting device 610 can also be that when the roller 600 is processed, a shoulder is reserved at one end of the roller 600, and the diameter at the shoulder is larger than that of the roller 600, so as to realize that the shoulder is stuck to move at the end face of the drum 200.

[0046] Mixed organic and metal waste (material) is fed into the drum 200 from its feed end, where it undergoes pyrolysis. As the drum 200 rotates, the material shifts and shifts within the drum 200, evenly heating it. Simultaneously, rollers 600 rotate with the drum 200, crushing the material and converting the organic matter into powder under the high-temperature environment. During this process, rollers 600 force the material into contact with the inner wall of the drum 200, effectively transferring heat and causing the material to heat up and pyrolyze. Metallic materials, due to their inherent ductility, are generally not crushed into powder. After exiting the drum 200's discharge end, the mixture of metallic and organic powders can be separated by sieving or electromagnetic screening. Compared with the traditional pyrolysis method, the embodiment of the present invention does not have high requirements on the particle size of the material to be pyrolyzed, and there is no need to crush the material into small particles. The continuous rolling of the drum 200 can also allow the material to be heated evenly. The rolling of the roller 600 can make the material close to the inner wall of the drum 200, thereby better completing heat transfer and heating.

[0047] Reference Figure 2 As shown, in some embodiments of the present invention, a feeding device 300 is further provided, and the feeding device 300 includes a first head 310 and a feeding pipe 320. The first head 310 is mounted on the feeding end of the drum 200 and is fixed on the equipment frame 100. The first head 310 and the drum 200 are movably sealed and connected. The drum 200 can rotate relative to the first head 310. The feeding pipe 320 is arranged on the first head 310 and is connected to the interior of the drum 200.

[0048] The first head 310 is movably sealed and connected to the drum 200, so that the first head 310 does not rotate with the rotation of the drum 200, which facilitates the connection between the material conveying device and the feed pipe 320 to convey the material to be pyrolyzed. The seal between the first head 310 and the drum 200 can prevent the harmful gases generated by pyrolysis from overflowing as much as possible; the feed pipe 320 is connected to the interior of the drum 200, and the material falls directly into the interior of the drum 200 after passing through the feed pipe 320.

[0049] Reference Figure 3 As shown, in some embodiments of the present invention, a discharging device 400 is further provided, and the discharging device 400 includes a second head 410, a discharging pipe 420 and a smoke exhaust pipe 430. The second head 410 is mounted on the discharging end of the drum 200 and is fixed on the equipment frame 100. The second head 410 is movably sealed to the drum, and the drum 200 can rotate relative to the second head 410. The discharging pipe 420 is arranged at the lower part of the second head 410 and is connected to the interior of the drum 200. The smoke exhaust pipe 430 is arranged at the upper part of the second head 410 and is connected to the interior of the drum 200.

[0050] The second head 410 is movably sealed and connected to the drum 200, so that the second head 410 does not rotate with the rotation of the drum 200, which facilitates the connection of the solid collection device to the discharge pipe 420 and the connection of the gas collection device to the smoke exhaust pipe 430. The seal between the second head 410 and the drum 200 can avoid the overflow of harmful gases produced by pyrolysis as much as possible; the discharge pipe 420 is arranged at the lower part of the second head 410, which is convenient for receiving the material sent out from the discharge end of the drum 200, and the smoke exhaust pipe 430 is arranged at the upper part of the second head 410, which can well discharge the gas produced by pyrolysis and prevent solid materials from entering the smoke exhaust pipe 430.

[0051] In some embodiments of the present invention, a collecting hopper 440 is provided in the second head 410 . The collecting hopper 440 is located below the discharge end of the drum 200 and is connected to the discharge pipe 420 to receive the material discharged from the drum 200 .

[0052] The collecting hopper 440 is located below the discharge end of the drum 200, and can directly receive the material discharged from the drum 200 and transport it out through the discharge pipe 420, avoiding the accumulation of some materials in the second head 410 and improving the material discharge efficiency.

[0053] Reference Figure 1 and Figure 2 As shown, in some embodiments of the present invention, a plurality of rolling teeth 210 parallel to the central axis are provided on the inner wall of the roller 200, and the rolling teeth 210 are arranged and distributed along the circumferential direction of the roller 200, and the rolling teeth 210 are located on the rolling path of the roller 600.

[0054] As the drum 200 rotates, the rollers 600 also rotate, working in concert with the drum 200 to squeeze and crush the material. The inclusion of the crushing teeth 210 compresses the material onto the crushing teeth 210, increasing contact friction and surface damage, resulting in more detailed and thorough crushing and improved crushing efficiency. Furthermore, the crushing teeth 210 help crush the material into smaller particles, increasing the surface area exposed to heat and promoting more thorough pyrolysis.

[0055] Reference Figure 1 and Figure 4 As shown, in some embodiments of the present invention, the axial length of the roller 600 is smaller than the axial length of the drum 200, and the roller 600 rolls in the drum 200 near the feed end of the drum 200. A plurality of blades 220 parallel to the central axis are provided on the inner wall of the drum 200. The blades 220 are arranged and distributed along the circumferential direction of the drum 200, and the blades 220 are located on the side away from the feed end of the drum 200 to avoid the rolling path of the roller 600.

[0056] The axial length of the roller 600 is less than that of the drum 200, and the roller 600 rolls inside the drum 200 near the feeding end of the drum 200, so as to leave a space on the side near the discharging end inside the drum 200 for arranging the blades 220. The blades 220 are arranged on the inner wall of the drum 200, which can increase the surface area of the inner wall of the drum 200 to improve the heat transfer efficiency. After being rolled for a certain period of time, the material has become fine particles. At this time, the granular material contacts the blades 220 to better complete heat transfer and further promote the completion of pyrolysis.

[0057] Referring Figure 4 As shown, in some embodiments of the present invention, a plurality of baffles 230 are provided on the inner wall of the drum 200. The baffles 230 are arranged between the blades 220 and the discharging end of the drum 200. The plate surface of the baffle 230 is perpendicular to the central axis of the drum 200, and the cross-section of the drum 200 is not closed by the baffle 230. The baffles 230 are arranged at intervals along the central axis direction of the drum 200, and two adjacent baffles 230 are located on opposite sides of the inner wall of the drum 200 to form a channel that winds back and forth along the central axis direction inside the drum 200.

[0058] A plurality of baffles 230 are provided between the blades 220 and the discharging end of the drum 200 to form a winding channel. When the solid material and the gas move along the channel towards the discharging end, due to the extended movement path and the continuous consumption of kinetic energy by the gas during the back-and-forth movement, the flow rate is low, so that the small solid particles suspended in the gas settle and separate, and the dust can be well removed.

[0059] Referring Figure 5 As shown, in some embodiments of the present invention, a plurality of brackets 120 are provided between the drum 200 and the equipment frame 100. The upper ends of the brackets 120 are provided with a number of rollers 121. The axes of the rollers 121 are parallel to the central axis of the drum 200, and the rollers 121 are in contact with the outer wall of the drum 200 to support the rotation of the drum 200.

[0060] Arranging a plurality of brackets 120 can provide balanced support for the drum 200. The rollers 121 provided at the upper ends of the brackets 120 are in contact with the outer wall of the drum 200, reducing the friction when the drum 200 rotates and reducing the energy consumption of the driving device 500.

[0061] In some embodiments of the present invention, the driving device 500 includes a motor and a driving gear 510. The driving gear 510 is coaxially arranged on the outer wall of the drum 200 and is fixedly connected to the drum 200. The motor is in transmission connection with the driving gear 510 to drive the driving gear 510 to rotate.

[0062] The motor is drivingly connected to the drive gear 510. For example, when the motor rotates at a high speed, a reduction gear set can be used to mesh with the drive gear 510 to drive the drive gear 510 to rotate, so as to drive the drum 200 to rotate. In addition, a chain drive or other connection means can also be used between the motor and the drive gear 510.

[0063] In some embodiments of the present invention, the heating device 110 includes a combustion chamber 111. The combustion chamber 111 is disposed on the equipment rack 100. The interior of the combustion chamber 111 has a combustion chamber. The drum 200 passes through the combustion chamber 111 such that the outer wall of the drum 200 is surrounded by the combustion chamber. A grate is provided in the combustion chamber.

[0064] The drum 200 passes through the combustion chamber 111 and is surrounded by the combustion chamber. The grate provided in the combustion chamber can heat the outer wall of the drum 200 to increase the temperature of the drum 200, so as to implement a pyrolysis reaction inside the drum 200.

[0065] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0066] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rolling drum pyrolysis device, characterized in that, Comprising: Equipment rack (100); A drum (200), the drum (200) is arranged on the equipment rack (100), one end of the drum (200) is the feeding end, and the other end is the discharging end; A heating device (110), the heating device (110) can provide heat to the drum (200); A driving device (500), the driving device (500) is in transmission connection with the drum (200) to drive the drum (200) to rotate around its own axis. The driving device (500) includes a motor and a driving gear (510). The driving gear (510) is coaxially arranged on the outer wall of the drum (200) and fixedly connected with the drum (200). The motor is in transmission connection with the driving gear (510) to drive the driving gear (510) to rotate; Rollers (600), the rollers (600) are movably placed in the drum (200). The axis of the rollers (600) is parallel to the axis of the drum (200). The rollers (600) can roll as the drum (200) rotates to crush the materials in the drum (200); Wherein, the axial length of the rollers (600) is less than the axial length of the drum (200). The rollers (600) roll in the drum (200) near the feeding end of the drum (200). A plurality of blades (220) parallel to the central axis are arranged on the inner wall of the drum (200). The blades (220) are arranged and distributed along the circumferential direction of the drum (200), and the blades (220) are located on the side far from the feeding end of the drum (200) to avoid the rolling path of the rollers (600).

2. The roller pyrolysis device according to claim 1, characterized in that, A feeding device (300) is further provided. The feeding device (300) includes a first head (310) and a feeding pipe (320). The first head (310) is sleeved on the feeding end of the drum (200) and fixed on the equipment rack (100). The first head (310) is movably and sealingly connected with the drum (200). The drum (200) can rotate relative to the first head (310). The feeding pipe (320) is arranged on the first head (310) and communicates with the inside of the drum (200).

3. The roller pyrolysis device according to claim 1, characterized in that, A discharging device (400) is further provided. The discharging device (400) includes a second head (410), a discharging pipe (420) and an exhaust pipe (430). The second head (410) is sleeved on the discharging end of the drum (200) and fixed on the equipment rack (100). The second head (410) is movably and sealingly connected with the drum. The drum (200) can rotate relative to the second head (410). The discharging pipe (420) is arranged at the lower part of the second head (410) and communicates with the inside of the drum (200). The exhaust pipe (430) is arranged at the upper part of the second head (410) and communicates with the inside of the drum (200).

4. The roller pyrolysis device according to claim 3, characterized in that The second head (410) is provided with a collecting hopper (440). The collecting hopper (440) is located below the discharge end of the drum (200) and is communicated with the discharge pipe (420) to receive the materials discharged from the drum (200).

5. The roller pyrolysis device according to claim 1, characterized in that A plurality of rolling teeth (210) parallel to the central axis are provided on the inner wall of the drum (200). The rolling teeth (210) are arranged and distributed in the circumferential direction of the drum (200), and the rolling teeth (210) are located on the rolling path of the roller (600).

6. The roller pyrolysis device according to claim 1, characterized in that, A plurality of baffles (230) are provided on the inner wall of the drum (200). The baffles (230) are arranged between the blades (220) and the discharge end of the drum (200). The plate surface of the baffle (230) is perpendicular to the central axis of the drum (200), and the cross-section of the drum (200) is not closed by the baffle (230). The baffles (230) are arranged at intervals along the central axis direction of the drum (200), and two adjacent baffles (230) are located on opposite sides of the inner wall of the drum (200) to form a channel that winds back and forth along the central axis direction in the drum (200).

7. The roller pyrolysis device according to claim 1, characterized in that, A plurality of brackets (120) are provided between the drum (200) and the equipment frame (100). The upper ends of the brackets (120) are provided with a plurality of rollers (121). The axis of the roller (121) is parallel to the central axis of the drum (200). The roller (121) contacts the outer wall of the drum (200) to support the rotation of the drum (200).

8. The roller pyrolysis device according to claim 1, characterized in that, The heating device (110) includes a combustion chamber (111). The combustion chamber (111) is provided on the equipment frame (100). The interior of the combustion chamber (111) has a combustion chamber. The drum (200) passes through the combustion chamber (111) so that the outer wall of the drum (200) is surrounded by the combustion chamber. A grate is provided in the combustion chamber.

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