A carbon five resin modification reactor with annular feed

Abstract

The utility model discloses a carbon five resin modification reactor of annular feeding which comprises a tank body, a stirring assembly and a mixed liquid ring, wherein the tank body is a hollow rotary body, the mixed liquid ring is arranged on the upper part of the tank body, the tank body side wall below the mixed liquid ring is provided with a feeding port, the tank body lower part is provided with a discharge port, and the upper part is provided with a plurality of improved mixed liquid feeding ports. The stirring assembly comprises a stirring motor, a stirring shaft and stirring blades, the mixed liquid ring is provided with a through hole in the center, the stirring shaft passes through the through hole, and a convex ring is arranged at the edge of the through hole. The carbon five resin modification reactor of annular feeding is provided by the utility model, which adopts the mode of current mixing + annular overflow feeding, realizes the current preparation and use and uniform drop of the modified mixed liquid, and ensures the continuous reaction. The mixed liquid ring is arranged on the top of the reaction tank, a plurality of modified liquids are poured into the mixed liquid ring according to the preset ratio of the process, and then enter the reaction tank through the overflow mode after stirring.

Description

Technical Field

[0001] This utility model relates to the field of fuze technology, specifically to a ring-feed C5 resin modified reactor. Background Technology

[0002] C5 fraction is an important byproduct of petroleum cracking to produce ethylene, accounting for 10%–20% of ethylene production. It is a volatile liquid at room temperature, mainly composed of more than 20 C5 hydrocarbons, including isoprene (15%–25%), cyclopentadiene (10%–15%), and isoprene (10%–15%). C5 fraction can be directly used to synthesize petroleum resins and fuels, or separated and purified into high-value-added products (such as synthetic rubber and epoxy resin curing agents). To meet the needs of different industrial scenarios, C5 fractions can be modified to improve their properties (such as compatibility, softening point, and color). Modification processes often require the continuous addition of certain raw materials. For example, in styrene modification, styrene monomers are cationic copolymerized with C5 fractions (rich in isoprene, isoprene, etc.) under the action of a catalyst (such as anhydrous aluminum trichloride), thereby improving the compatibility, thermal stability, and color of C5 petroleum resins. This can be applied to hot melt pressure-sensitive adhesives (HMPSA), rubber tires, coatings, and inks. The modification process employs stepwise feeding, gradually adding a modifier mixture containing styrene to the C5 fraction. The properties of the modified product can be adjusted by adding certain catalysts (such as ethylaluminum sesquichloride, AlCl3-CH2Cl2 complexes) or additives (molecular weight adjusters, hydrogenation catalysts, functionalized modifiers, etc.). To improve reaction efficiency, it is necessary to ensure the uniform distribution of the catalyst or additives in the modifier mixture and the stable and uniform addition of the modifier mixture to the C5 fraction. Furthermore, some catalysts and modifiers, due to their unstable chemical properties, should not be mixed with styrene beforehand and must be prepared fresh for use. Achieving uniformity in the modified mixture itself and ensuring stable and uniform addition are key issues that must be addressed to guarantee the stability of the modification process. Summary of the Invention

[0003] The purpose of this invention is to provide a ring-feed C5 resin modified reactor to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a ring-feed C5 resin modification reactor, comprising a tank, a stirring assembly, and a mixing ring. The tank is a hollow rotating body with a mixing ring at its upper part. A feed inlet is located on the side wall of the tank below the mixing ring, a discharge outlet is located at the lower part of the tank, and several improved mixture feed inlets are located at the upper part. The stirring assembly includes a stirring motor, a stirring shaft, and stirring blades. A through hole is located in the center of the mixing ring, through which the stirring shaft passes, and a raised ring is located at the edge of the through hole.

[0005] Furthermore, the lower part of the tank is provided with an inner jacket wall, and a gap is provided between the inner jacket wall and the tank body. A temperature control circuit is provided in the gap, and the upper and lower parts of the temperature control circuit pass through the tank body. A circulating water inlet and outlet are provided on the side wall of the tank body. The stirring motor is located at the center of the top of the tank body, the stirring shaft passes through the tank body, and several stirring blades are provided on the lower side.

[0006] Furthermore, a modified liquid stirring unit is provided on the stirring shaft above the mixing ring. The modified liquid stirring unit includes a connecting ring and several stirring rods. The connecting ring is located on the outside of the stirring shaft, and multiple stirring rods are arranged in a circumferential array on the outside of the connecting ring.

[0007] Furthermore, the mixing ring has multiple liquid outlet holes near the central area, and a liquid outlet protrusion ring is provided at the liquid outlet hole. The tops of the protrusion ring and the liquid outlet protrusion ring are at the same height.

[0008] Furthermore, a mixing groove is provided in the area of ​​the mixing ring away from the center, and a raised edge of the mixing groove is located near the axis area. The top height of the raised edge is higher than the top of the raised ring and the liquid outlet raised ring.

[0009] Furthermore, the improved mixture inlet has multiple inlets, with the lower part located in the mixing groove area, of which at least two have a lower end height lower than the top height of the protruding edge; the lower part of the stirring shaft is located inside the mixing groove.

[0010] Furthermore, a stirring crossbar is installed at the lower end of the stirring rod.

[0011] Furthermore, a stirring plate is provided at the lower end of the stirring rod, and the stirring plate is provided with multiple stamped through holes, with protruding covers at the through holes.

[0012] This invention proposes a ring-feed C5 resin modification reactor, employing a combination of on-site mixing and ring overflow feeding to achieve immediate preparation and uniform addition of the modified mixture, while ensuring continuous reaction. Specifically, a mixing ring is installed at the top of the reaction vessel. Various modified liquids are added to the mixing ring according to a pre-set process ratio, stirred, and then overflow into the reaction vessel. Furthermore, the mixing ring can drive a stirring rod via the reaction vessel's stirring shaft, effectively agitating the modified mixture. This design features a simple overall structure, low cost, and significant advantages. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic cross-sectional view of the upper part of the tank body of this utility model.

[0015] Figure 3 This is a magnified view of a portion of the mixing ring region of this utility model.

[0016] Figure 4 This is a schematic diagram of a stirring plate according to another embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] As attached Figure 1-3 As shown, the annular feed C5 resin modified reactor of this utility model includes a tank body 1, a stirring assembly 2, and a mixing ring 3.

[0019] The tank 1 is a hollow rotating body with an inner interlayer wall 11 at the bottom. There is a gap between the inner interlayer wall 11 and the tank 1. A temperature control circuit 12 is installed in the gap. The internal circulation is filled with process-defined circulating water. The upper and lower parts of the temperature control circuit 12 pass through the tank 1. A circulating water inlet and outlet 121 is installed on the side wall of the tank 1.

[0020] A discharge port 13 is provided at the lower part of the tank body 1, and several improved mixture inlets 14 are provided at the upper part. A mixing ring 3 is provided at the upper part of the tank body 1. An inlet 15 is provided on the side wall of the tank body 1 below the mixing ring 3.

[0021] As attached Figure 1 , 2 As shown, the upper part of the tank 1 is provided with a stirring assembly 2, which includes a stirring motor 21, a stirring shaft 22, and stirring blades 23.

[0022] The stirring motor 21 is located at the top center of the tank 1, the stirring shaft 22 passes through the tank 1, and several stirring blades 23 are provided on the lower side.

[0023] The mixing ring 3 has a through hole 31 in the center, through which the stirring shaft 22 passes. A raised ring 311 is provided at the edge of the through hole 31.

[0024] A modified liquid stirring unit 4 is provided on the stirring shaft 22 at the upper part of the mixing ring 3. The modified liquid stirring unit 4 includes a connecting ring 41 and several stirring rods 42. The connecting ring 41 is located on the outside of the stirring shaft 22. Several stirring rods 42 are arranged in a circular array on the outside of the connecting ring. The lowest point of the stirring shaft 41 is 0.5-1cm away from the top surface of the mixing ring 3.

[0025] Appendix Figure 3Another embodiment of the mixing ring 3 is provided, in which the mixing ring has a plurality of liquid outlet holes 32 near the central region, and a liquid outlet protrusion ring 321 is provided at the liquid outlet hole. The tops of the protrusion ring 311 and the liquid outlet protrusion ring 321 are at the same height.

[0026] A mixing groove 33 is provided in the area of ​​the mixing ring 3 away from the center. A raised edge 331 is provided in the area of ​​the mixing groove 33 near the axis. The top height of the raised edge 331 is higher than the top of the raised ring 311 and the liquid outlet raised ring 321.

[0027] The improved mixture inlet 14 has multiple inlets, the lower part of which is located in the mixture groove area, and at least two of them have a lower end height that is lower than the top height of the raised edge 331.

[0028] The lower part of the stirring rod 42 is located in the mixing groove 33. To improve the stirring efficiency, a stirring crossbar 421 is provided at the lower end of the stirring rod 42.

[0029] Furthermore, a stirring plate 422 can be provided at the lower end of the stirring rod 42. The stirring plate 422 is provided with multiple stamped through holes, and a protruding cover is provided at the through holes to improve the stirring efficiency.

[0030] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A carbon five resin modification reactor for annular feed, characterized by, The system includes a tank, a stirring assembly, and a mixing ring. The tank is a hollow rotating body with a mixing ring at its upper part. A feed inlet is located on the side wall of the tank below the mixing ring, a discharge outlet is located at the lower part of the tank, and several improved mixture feed inlets are located at the upper part. The stirring assembly includes a stirring motor, a stirring shaft, and stirring blades. A through hole is located in the center of the mixing ring, through which the stirring shaft passes, and a raised ring is located at the edge of the through hole.

2. The modified reactor according to claim 1, characterized in that, The lower part of the tank is provided with an inner sandwich wall, and a gap is provided between the inner sandwich wall and the tank body. A temperature control circuit is provided in the gap. The upper and lower parts of the temperature control circuit pass through the tank body. A circulating water inlet and outlet are provided on the side wall of the tank body. The stirring motor is located at the center of the top of the tank body, the stirring shaft passes through the tank body, and several stirring blades are provided on the lower side.

3. The modified reactor according to claim 1, characterized in that, A modified liquid stirring unit is provided on the stirring shaft at the top of the mixing ring. The modified liquid stirring unit includes a connecting ring and several stirring rods. The connecting ring is located on the outside of the stirring shaft, and multiple stirring rods are arranged in a circumferential array on the outside of the connecting ring.

4. The modified reactor according to claim 3, characterized in that, The mixing ring has multiple liquid outlet holes near the central area, and a liquid outlet protrusion ring is provided at the liquid outlet hole. The tops of the protrusion ring and the liquid outlet protrusion ring are at the same height.

5. The modified reactor according to claim 4, characterized in that, A mixing groove is provided in the area of ​​the mixing ring away from the center, and a raised edge of the mixing groove is located near the axis area. The top of the raised edge is higher than the top of the raised ring and the liquid outlet raised ring.

6. The modified reactor according to claim 5, characterized in that, The improved mixture feed inlet has multiple inlets, with the lower part located in the mixing groove area, of which at least two of the lower ends are lower than the top height of the raised edge; the lower part of the stirring shaft is located inside the mixing groove.

7. The modified reactor according to claim 6, characterized in that, A stirring crossbar is installed at the lower end of the stirring rod.

8. The modified reactor according to claim 6, characterized in that, A stirring plate is provided at the lower end of the stirring rod. The stirring plate has multiple stamped through holes, and a protruding cover is provided at the through holes.

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