C5 petroleum resin polymerization tower

Abstract

The utility model discloses a C5 petroleum resin polymerization tower which comprises a tower body, a feeding assembly and a stirring assembly, the tower body is a hollow revolving body, a feeding hole is formed in the top of the side surface of the tower body, and a discharging hole is formed in the bottom of the tower body; the feeding assembly comprises a feeding hole and a spiral extrusion cylinder; the spiral extrusion cylinder comprises a cylinder body, a spiral extrusion rod and a driving motor; through holes distributed in an array mode are formed in the discharging end face of the barrel, and the side, provided with the discharging end face, of the barrel extends into the tower body. According to the utility model, the spiral extrusion structure is matched with the stirring scraping plate to control the feeding of the raw materials, so that the feeding speed is controllable, and meanwhile, the raw materials can be uniformly premixed in the feeding process more conveniently. Extruded raw materials can be scraped off through the scraping plate, the inclined scraping plate can effectively control the flowing direction of the raw materials, the feeding direction of the raw materials in the polymerization tower is optimized, and the reaction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a C5 petroleum resin polymerization tower. Background Art

[0002] C5 petroleum resin has good compatibility, solubility, water resistance, acid and alkali resistance and aging resistance, and also has high hardness, softening point and boiling point. It is made by polymerization of C5 fraction produced in the process of petroleum cracking.

[0003] At present, the commonly used synthesis process is thermal polymerization synthesis. The synthetic raw materials include C5 fraction, catalyst, solvent, etc. In the polymerization process, the feeding speed has a great influence on the quality of the final product. For example, CN218250205U is a C5 petroleum resin polymerization tower, and CN214327615U is a new type of C9 petroleum resin polymerization tower. Both patents focus on the problem of raw material feeding speed. At present, the feeding structures related to the two patents are both set at the top of the polymerization tower, which requires a lot of modification of the existing tower body, and the applicability is poor. Utility Model Content

[0004] The utility model aims to provide a C5 petroleum resin polymerization tower to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a C5 petroleum resin polymerization tower, including a tower body, a feed assembly, and a stirring assembly; the tower body is an internally hollow rotating body, with a feed port arranged at the top of the side and a discharge port arranged at the bottom; the feed assembly includes a feed port and a spiral extrusion barrel; the discharge end of the spiral extrusion barrel extends into the interior of the tower body.

[0006] Preferably, the spiral extrusion cylinder includes a cylinder body, a spiral extrusion rod, and a driving motor; the spiral extrusion rod is arranged inside the cylinder body and is coaxial with the cylinder body, one end of the spiral extrusion rod is rotatably connected to the discharge end face of the cylinder body, and the other end passes through the end face of the other end of the cylinder body and is connected to the output shaft of the driving motor; the discharge end face of the cylinder body is provided with through holes distributed in an array, and one side of the discharge end face of the cylinder body extends into the interior of the tower body.

[0007] Preferably, the feed port is arranged at the upper part of the other side of the cylinder and is connected to the feed opening arranged on the cylinder; the feed port includes a first feed pipe, a second feed pipe, and a solid catalyst feed port, wherein the first feed pipe is arranged at the farthest end away from the discharge end face of the cylinder, and the second feed pipe and the solid catalyst feed port are arranged successively or in parallel along the axis of the cylinder.

[0008] Preferably, the stirring assembly includes a stirring motor, a stirring shaft, a plurality of scraper plates, and a stirring structure; the scraper plate is fixed to the outside of the stirring shaft, and the end on one side away from the stirring shaft is in contact with the discharge end face of the spiral extruder barrel or a gap is provided, and the gap size is 1-2 cm.

[0009] Preferably, the scraper plate comprises a connecting portion and a scraping portion, wherein one end of the connecting portion is connected to the stirring shaft, and the other end is connected to the scraping portion, and the scraping portion is plate-shaped and arranged obliquely to the axis of the stirring shaft; a plurality of scraper plates are arranged in a circular array.

[0010] Preferably, the stirring structure is a spiral stirring structure, including a spiral stirring blade and a connecting rod, and the spiral stirring blade is fixedly connected to the stirring shaft through the connecting rod; a scraper blade is arranged on the outside of the spiral stirring blade, and the scraper blade is in contact with the inner wall of the tower body; the scraper blade includes a plurality of scraper blade units, and the scraper blade units are fixed on both side surfaces of the outside of the spiral stirring blade, the scraper blade units on the same side are arranged at intervals and the scraper blade units on the other side are located in the gap between the two scraper blade units on that side.

[0011] Preferably, the scraper blade unit is fixed to the spiral stirring blade via a pressing plate on one side close to the stirring shaft, and the pressing plate covers an area smaller than the overlapping area with the spiral stirring blade.

[0012] The utility model adopts a spiral extrusion structure in conjunction with a stirring scraper to control the feeding of raw materials. While ensuring that the feeding speed is controllable, it is also relatively convenient to achieve uniform pre-mixing of the raw materials during the feeding process. The extruded raw materials can be scraped off by the scraper, and the inclined scraper can effectively control the flow direction of the raw materials, optimize the feeding direction of the raw materials inside the polymerization tower, and help improve the reaction efficiency. In addition, in order to address the problem that some products or raw materials will adhere to the inner wall of the tower body during the polymerization process, a scraper is provided on the outside of the stirring blade to effectively scrape off the adhered substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall solution of the utility model.

[0014] Figure 2 It is a top cutaway schematic diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the stirring component of the utility model.

[0016] Figure 4 This is a schematic diagram of the utility model scraper DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] As attached Figure 1-4 As shown, a C5 petroleum resin polymerization tower involved in the utility model comprises a tower body 1, a feed assembly 2, and a stirring assembly 3.

[0019] The tower body 1 is a hollow rotating body, with a feed inlet at the top of the side and a discharge outlet at the bottom.

[0020] The feeding assembly 2 includes a feeding port 21 and a spiral extrusion cylinder 22 .

[0021] The spiral extrusion cylinder 22 includes a cylinder body 221 , a spiral extrusion rod 222 , and a driving motor 223 .

[0022] The spiral extrusion rod 222 is arranged inside the cylinder 221 and is coaxial with the cylinder 221. One end is rotatably connected to the discharge end face of the cylinder 221, and the other end passes through the end face of the other end of the cylinder and is connected to the output shaft of the driving motor 223.

[0023] The discharge end surface of the cylinder 221 is provided with through holes distributed in an array, and one side of the discharge end surface of the cylinder 221 extends into the interior of the tower body 1.

[0024] The feed port 21 is disposed at the upper portion of the other side of the barrel 221 and is connected to the feed opening disposed on the barrel 221 .

[0025] The feed port 21 includes a first feed pipe a1, a second feed pipe a2, and a solid catalyst feed port a3, wherein the first feed pipe a1 is arranged at the farthest end away from the discharge end face of the cylinder 221, and the second feed pipe a2 and the solid catalyst feed port a3 are arranged in sequence or in parallel along the axis of the cylinder 221.

[0026] As attached Figure 1-4 As shown, the stirring assembly 3 includes a stirring motor 31 , a stirring shaft 32 , a plurality of scraper plates 33 , and a stirring structure 34 .

[0027] The stirring shaft 32 is arranged inside the tower body 1 , and the top thereof extends out of the tower body 1 and is fixedly connected to the output shaft of the stirring motor 31 .

[0028] The scraper plate 33 is fixed to the outside of the stirring shaft 32, and the end portion on one side away from the stirring shaft 32 is in contact with the discharge end surface of the spiral extruder barrel 221 or is provided with a gap, and the size of the gap is 1-2 cm.

[0029] Specific details are as follows Figure 3 As shown, the scraper plate 33 includes a connecting portion b1 and a scraper portion b2. One end of the connecting portion b1 is connected to the stirring shaft 32, and the other end is connected to the scraper portion b2. The scraper portion b2 is plate-shaped and arranged obliquely with the axis of the stirring shaft 32, thereby achieving inclined scraping. A plurality of scraper plates 33 are arranged in a circular array. The figure includes four scraper plates.

[0030] The stirring structure 34 is a spiral stirring structure, including a spiral stirring blade c1 and a connecting rod c2. The spiral stirring blade c1 is fixedly connected to the stirring shaft 32 via the connecting rod c2.

[0031] As attached Figure 4 As shown, a wall scraping blade c3 is arranged outside the spiral stirring blade c1, and the wall scraping blade c3 is in contact with the inner wall of the tower body 1.

[0032] The scraper blade c3 has a certain elasticity and can be a metal thin plate or a composite material plate. In order to reduce the damage to itself and the stirring motor due to excessive resistance during the scraping process, the scraper blade c3 includes a plurality of scraper blade units c31, and the scraper blade units c31 are fixed on the side surfaces on both sides of the outer side of the spiral stirring blade c1. The scraper blade units c31 on the same side are arranged at intervals and the scraper blade units c31 on the other side are located in the gap between the two scraper blade units c31 on that side.

[0033] The side of the scraper blade unit c31 close to the stirring shaft 32 is fixed to the spiral stirring blade c1 through a pressing plate y, and the covering area of ​​the pressing plate is smaller than the overlapping area between the pressing plate and the spiral stirring blade c1.

[0034] The scraper unit c31 has a certain elasticity. Due to the support of the spiral stirring blade c1 in the overlapping area between the scraper unit c31 and the spiral stirring blade c1, the scraper unit c31 is subjected to different forces when the spiral stirring blade c1 rotates forwards and reverses, and the deformation that may occur is also different.

[0035] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A C5 petroleum resin polymerization tower, characterized in that: It includes a tower body, a feed assembly, and a stirring assembly; the tower body is a hollow rotating body with a feed port on the top of the side and a discharge port on the bottom; the feed assembly includes a feed port and a spiral extrusion cylinder; the discharge end of the spiral extrusion cylinder extends into the tower body.

2. A C5 petroleum resin polymerization tower according to claim 1, characterized in that: The spiral extrusion cylinder comprises a cylinder body, a spiral extrusion rod and a driving motor; the spiral extrusion rod is arranged inside the cylinder body and is coaxial with the cylinder body, one end of the spiral extrusion rod is rotatably connected to the discharge end face of the cylinder body, and the other end passes through the end face of the other end of the cylinder body and is connected to the output shaft of the driving motor; the discharge end face of the cylinder body is provided with through holes distributed in an array, and one side of the discharge end face of the cylinder body extends into the interior of the tower body.

3. A C5 petroleum resin polymerization tower according to claim 2, characterized in that: The feed port is arranged at the upper part of the other side of the cylinder and is connected to the feed opening arranged on the cylinder; the feed port includes a first feed pipe, a second feed pipe, and a solid catalyst feed port, wherein the first feed pipe is arranged at the farthest end away from the discharge end face of the cylinder, and the second feed pipe and the solid catalyst feed port are arranged successively or in parallel along the axis of the cylinder.

4. A C5 petroleum resin polymerization tower according to claim 1, characterized in that: The stirring assembly includes a stirring motor, a stirring shaft, a plurality of scraper plates, and a stirring structure; the scraper plate is fixed to the outside of the stirring shaft, and the end on one side away from the stirring shaft is in contact with the discharge end surface of the spiral extruder barrel or is provided with a gap, and the gap size is 1-2cm.

5. A C5 petroleum resin polymerization tower according to claim 4, characterized in that: The scraper plate comprises a connecting portion and a scraping portion. One end of the connecting portion is connected to the stirring shaft, and the other end is connected to the scraping portion. The scraping portion is plate-shaped and arranged obliquely with the axis of the stirring shaft. A plurality of scraper plates are arranged in a circular array.

6. A C5 petroleum resin polymerization tower according to claim 4, characterized in that: The stirring structure is a spiral stirring structure, including a spiral stirring blade and a connecting rod, wherein the spiral stirring blade is fixedly connected to the stirring shaft by the connecting rod; a scraper blade is arranged on the outside of the spiral stirring blade, and the scraper blade is in contact with the inner wall of the tower body; the scraper blade includes a plurality of scraper blade units, and the scraper blade units are fixed on both side surfaces of the outside of the spiral stirring blade, the scraper blade units on the same side are arranged at intervals and the scraper blade units on the other side are located in the gap between the two scraper blade units on that side.

7. A C5 petroleum resin polymerization tower according to claim 6, characterized in that: The side of the scraper blade unit close to the stirring shaft is fixed to the spiral stirring blade through a pressing plate, and the covering area of ​​the pressing plate is smaller than the overlapping area between the pressing plate and the spiral stirring blade.

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