Reaction kettle of waste tire pyrolysis furnace

Abstract

The application discloses a reaction kettle of a waste tire cracking furnace. The reaction kettle of the waste tire cracking furnace comprises a cylinder body, a feeding pipe is arranged at a feeding end of the cylinder body, a discharging pipe is arranged at a discharging end of the cylinder body, and helical blades are arranged on an inner peripheral wall of the cylinder body and used for pushing carbon black to the discharging pipe. A polygonal mesh cylinder is arranged in a cavity of the cylinder body, an open end of the polygonal mesh cylinder is communicated with the feeding pipe, and a closed end of the polygonal mesh cylinder extends to the discharging pipe. The application solves the problems of complex structure and high cost in the prior art.

Description

Technical Field

[0001] This invention relates to the field of waste tire processing technology, and in particular to a reaction vessel for a waste tire pyrolysis furnace. Background Technology

[0002] There is currently a Chinese invention patent application with publication number CN121109017A, entitled "A Waste Tire Pyrolysis Treatment Device". This waste tire pyrolysis treatment device uses a drive mechanism to synchronously rotate the pyrolysis chamber and connecting pipe. A stirring rod on the inner wall of the pyrolysis chamber agitates the tire material, ensuring uniform heating. The connecting pipe drives a striking plate to continuously strike a ring-shaped filter screen, shaking off the carbon black adhering to the steel wire after pyrolysis. The carbon black falls through the filter screen holes to the bottom of the chamber, while the steel wire is intercepted by the filter screen, thus achieving separation of carbon black and steel wire. However, adding a striking mechanism to the pyrolysis chamber results in a complex structure and high cost. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a reaction vessel for a waste tire pyrolysis furnace that is simple in structure and low in cost.

[0004] To achieve the above objectives, the technical solution adopted by the reactor of the waste tire pyrolysis furnace of the present invention is as follows:

[0005] A reactor for a waste tire pyrolysis furnace includes a cylinder, a feed pipe at the feed end of the cylinder, a discharge pipe at the discharge end of the cylinder, and spiral blades on the inner circumferential wall of the cylinder for pushing carbon black into the discharge pipe. A polygonal mesh cylinder is provided in the inner cavity of the cylinder, with the open end of the polygonal mesh cylinder communicating with the feed pipe and the closed end of the polygonal mesh cylinder extending toward the discharge pipe.

[0006] Preferably, the polygonal mesh cylinder includes a bottom sealing plate, and the edge of the bottom sealing plate is provided with multiple filter plate assemblies for filtering carbon black. The multiple filter plate assemblies are connected end to end to form a polygonal structure. One end of the polygonal structure is fixed to the bottom sealing plate, and the other end abuts against the inner wall of the cylinder feed end. The polygonal structure is mounted in the inner cavity of the cylinder by a fixing plate.

[0007] Preferably, the filter plate assembly includes a first perforated plate with a plurality of evenly distributed first filter holes. Adjacent first perforated plates are spliced ​​together by side sealing plates to form a polygonal structure. One side wall of the side sealing plate is fixedly connected to two adjacent first perforated plates respectively, and the other side wall is fixedly connected to a fixing plate.

[0008] Preferably, a second perforated plate is provided on the outer side of the first perforated plate, and the second perforated plate has a second filter hole, with the first and second filter holes arranged in a staggered manner.

[0009] Preferably, both the first filter hole and the second filter hole are round holes.

[0010] Preferably, the diameter of the first filter pore is 30-50 mm, and the diameter of the second filter pore is 10-30 mm.

[0011] Preferably, the distance between the inner wall of the second orifice plate and the outer wall of the first orifice plate is 40-60 mm.

[0012] Preferably, the helical blade is a four-headed helical blade.

[0013] Preferably, the inner wall of the discharge end of the cylinder is a conical inner wall, and the discharge pipe is located at the concave end of the conical inner wall. The conical inner wall is provided with guide grooves, the number of which matches the number of spiral blades, for guiding the carbon black pushed by the spiral blades to the discharge pipe.

[0014] Preferably, the outer walls of both the discharge end and the inlet end of the cylinder are provided with heat insulation cotton.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. By directly setting a polygonal mesh cylinder inside the cylinder, the resistance of the waste tires rolling in the polygonal mesh cylinder is increased. This also promotes the efficient peeling of carbon black from the steel wire surface during the pyrolysis process, without the need for an additional beating mechanism, which simplifies the structure and reduces costs.

[0017] 2. A second perforated plate is installed outside the first perforated plate to limit the length of the steel wire extending out of the first filter hole, so as to prevent the steel wire from getting caught on the first filter hole, thereby ensuring smooth carbon black discharge and facilitating the removal of the steel wire later.

[0018] 3. The inner wall of the discharge end of the cylinder is conical, and a guide groove is set on the conical inner wall. Together with the spiral blades, it can realize the axial forced discharge of carbon black, which is conducive to continuous production in conjunction with the production line. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the reactor structure of a waste tire pyrolysis furnace.

[0020] Figure 2 yes Figure 1 AA sectional view.

[0021] Figure 3 yes Figure 1 BB cross-sectional view.

[0022] Figure 4 yes Figure 3 Enlarged view of point C.

[0023] Figure 5 This is a partial schematic diagram of the first orifice plate.

[0024] Figure 6This is a partial schematic diagram of the second orifice plate.

[0025] The components include: 1. cylinder, 2. spiral blades, 3. discharge pipe, 4. guide groove, 5. feed pipe, 6. insulation cotton, 7. polygonal mesh cylinder, 71. bottom sealing plate, 72. filter plate assembly, 721. first perforated plate, 722. connecting rod, 723. second perforated plate, 73. side sealing plate, and 8. fixing plate. Detailed Implementation

[0026] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0027] like Figure 1-6As shown, a reactor for a waste tire pyrolysis furnace includes a cylindrical body 1. The inner circumferential wall of the cylindrical body 1 is welded with spiral blades 2 for pushing carbon black. The spiral blades 2 are four-headed spiral blades to ensure efficient carbon black pushing. The inner wall of the discharge end of the cylindrical body 1 is conical, and a discharge pipe 3 is welded to the concave end of the conical inner wall. Guide grooves 4 are installed on the conical inner wall, the number of which matches the number of spiral blades 2, to guide the carbon black pushed by the spiral blades to the discharge pipe 3 for discharge. A feed pipe 5 is welded to the feed end of the cylindrical body 1. The feed pipe 5, discharge pipe 3, and cylindrical body 1 are coaxial, and the inner diameter of the feed pipe 5 is larger than the inner diameter of the discharge pipe 3. Insulation cotton 6 is installed on the outer walls of both the discharge and feed ends of the cylindrical body 1 to reduce heat loss, save energy, and prevent burns to operators. To improve safety, a polygonal mesh cylinder 7 is installed inside the cylinder 1. The open end of the polygonal mesh cylinder 7 is connected to the feed pipe 5, and the closed end of the polygonal mesh cylinder 7 extends to the discharge pipe 3. The polygonal mesh cylinder 7 includes a bottom sealing plate 71, which is a hexagonal steel plate. Six filter plate assemblies 72 for filtering carbon black are installed on the edge of the bottom sealing plate 71. The filter plate assembly 72 includes a first perforated plate 721. One end of the first perforated plate 721 is fixed to the bottom sealing plate 71, and the other end abuts against the inner wall of the feed end of the cylinder 1. The first perforated plate 721 has several evenly distributed first filter holes. A second perforated plate 723 is installed on the outer side of the first perforated plate through a connecting rod 722. The distance between the inner wall of the second perforated plate 723 and the outer wall of the first perforated plate 721 is 50mm. The second perforated plate 723 has... The second filter hole is staggered with the first filter hole to limit the length of the steel wire extending out of the first filter hole and prevent it from getting caught on it. Both the first and second filter holes are round holes, which are easier to form. The diameter of the first filter hole is 40mm, and the diameter of the second filter hole is 20mm. The smaller diameter of the second filter hole further reduces the possibility of the steel wire passing through it. Adjacent first perforated plates 721 are connected end to end by side sealing plates 73 to form a polygonal structure. Several fixing plates 8 are welded to the inner wall of the cylinder 1 to support the side sealing plates. One side wall of the side sealing plate 73 is welded to two adjacent first perforated plates 721, and the other side wall is welded to the fixing plate 8. Because the first perforated plate 721 has a relatively large external size, and with the addition of the second perforated plate 721, the overall structure is designed to be more flexible. The second hole plate 721 becomes heavier and more inconvenient to construct. Therefore, a smaller side sealing plate 73 is used as a bridge connecting adjacent first hole plates 721. To facilitate operation and save costs, the side sealing plate 73 is composed of two strip profiles spliced ​​together. During construction, the edges of the two strip profiles abut against each other and are welded to the fixing plate 8 along the axial direction of the cylinder 1, thus forming the side sealing plate. Then, the first hole plate 721 carrying the second hole plate 723 is installed. The two sides of the first hole plate 721 are welded to the corresponding strip profiles. Even if the position of the first hole plate 721 on the two side strip profiles is slightly off, the steel wire will not pass through the side sealing plate 73 between adjacent first hole plates 721, thereby reducing the construction difficulty. After completing the welding between the first hole plate 721 and the corresponding strip profile one by one...Finally, the welding between the hexagonal steel plate 71 and the six first-hole plates 721 is completed, thus completing the installation of the polygonal mesh cylinder 7 inside the cylinder body 1.

[0028] The specific working process and principle of this invention: Waste tires are fed into the polygonal mesh cylinder 7 through the feed pipe 5. During the pyrolysis process, carbon black falls off the steel wire. As the cylinder 1 rotates, the steel wire bundle tumbles in the polygonal mesh cylinder 7. The "edges" between adjacent first perforated plates will strongly scrape and collide with the steel wire bundle, effectively separating the steel wire bundle from the carbon black. The separated steel wire bundle continuously grinds the large pieces of carbon black, refining the carbon black particle size, thereby significantly improving the smoothness of carbon black discharge. Even if the end of the steel wire passes through the first filter hole during this process, it will not be bent and hooked on the first filter hole due to the "protection" of the second filter plate. This ensures smooth carbon black discharge and facilitates the removal of the steel wire bundle later. The filtered carbon black is pushed to the discharge end of the cylinder 1 by the spiral blades 2 and discharged through the discharge pipe 3 along the guide groove 4. This invention simplifies the structure and reduces costs by replacing the beating mechanism with a polygonal mesh tube. Furthermore, by setting a second perforated plate outside the first perforated plate, it prevents the steel wire from getting caught on the first perforated plate, making it easier to remove the steel wire bundle and thus facilitating continuous production of the equipment.

Claims

1. A reactor for a waste tire pyrolysis furnace, comprising a cylindrical body, a feed pipe at the feed end of the cylindrical body, a discharge pipe at the discharge end of the cylindrical body, and spiral blades on the inner circumferential wall of the cylindrical body for pushing carbon black into the discharge pipe, characterized in that: The inner cavity of the cylinder is provided with a polygonal mesh cylinder, the open end of which is connected to the feed pipe, and the closed end of which extends to the discharge pipe.

2. The reactor of the waste tire pyrolysis furnace according to claim 1, characterized in that: The polygonal mesh cylinder includes a bottom sealing plate, and multiple filter plate assemblies for filtering carbon black are provided on the edge of the bottom sealing plate. The multiple filter plate assemblies are connected end to end to form a polygonal structure. One end of the polygonal structure is fixed to the bottom sealing plate, and the other end abuts against the inner wall of the cylinder feed end. The polygonal structure is mounted in the inner cavity of the cylinder by a fixing plate.

3. The reactor of the waste tire pyrolysis furnace according to claim 2, characterized in that: The filter plate assembly includes a first perforated plate with a plurality of evenly distributed first filter holes. Adjacent first perforated plates are spliced ​​together by side sealing plates to form a polygonal structure. One side wall of the side sealing plate is fixedly connected to two adjacent first perforated plates respectively, and the other side wall is fixedly connected to a fixing plate.

4. The reactor of the waste tire pyrolysis furnace according to claim 3, characterized in that: A second perforated plate is provided on the outer side of the first perforated plate, and the second perforated plate has a second filter hole. The first and second filter holes are arranged in a staggered manner.

5. The reactor of the waste tire pyrolysis furnace according to claim 4, characterized in that: Both the first and second filter holes are round holes.

6. The reactor of the waste tire pyrolysis furnace according to claim 5, characterized in that: The diameter of the first filter pore is 30-50mm, and the diameter of the second filter pore is 10-30mm.

7. The reactor of the waste tire pyrolysis furnace according to claim 6, characterized in that: The distance between the inner wall of the second orifice plate and the outer wall of the first orifice plate is 40-60mm.

8. The reactor of the waste tire pyrolysis furnace according to claim 1, characterized in that: The spiral blade is a four-headed spiral blade.

9. The reactor of the waste tire pyrolysis furnace according to claim 8, characterized in that: The inner wall of the discharge end of the cylinder is a conical inner wall, and the discharge pipe is set at the concave end of the conical inner wall. The conical inner wall is provided with guide grooves, the number of which matches the number of spiral blades, and is used to guide the carbon black pushed by the spiral blades to the discharge pipe.

10. The reactor of the waste tire pyrolysis furnace according to claim 9, characterized in that: The outer walls of both the discharge end and the inlet end of the cylinder are lined with thermal insulation cotton.

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