Internal part dismounting and mounting device for polyolefin catalyst mother liquor rectifying tower

Abstract

The utility model discloses an internal part dismounting and mounting device for a polyolefin catalyst mother liquor rectifying tower, and belongs to the technical field of polyolefin catalyst production. An internal part disassembling and assembling device for a polyolefin catalyst mother liquor rectifying tower comprises a sectional type main shaft and a rectifying tower inner cylinder, one end of the sectional type main shaft is provided with a pressing and disassembling assembly, the pressing and disassembling assembly is connected with the sectional type main shaft through a clamping groove, and the sectional type main shaft extends into the rectifying tower inner cylinder. The pressing and disassembling assembly is located in the rectifying tower inner cylinder, four main shaft guide supports are arranged on the inner side of the pressing and disassembling assembly, and the main shaft guide supports are connected with the sectional type main shaft through guide sleeves. In order to solve the problems that the rectifying tower and the filler are difficult to be perfectly separated in a short time, the filler of the rectifying tower is often scrapped due to overhaul and disassembly, the overhaul cost is high, the overhaul time is long and the production efficiency is influenced by the existing overhaul and disassembly method, the operation is simple and rapid, the cost is low, the implementation is easy, and the service life of the filler is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of polyolefin catalyst production, in particular to an internal component disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower. Background Art

[0002] In the process of recovering the mother liquor of polyolefin catalyst production, the mother liquor is first simply distilled through the mother liquor evaporator to separate the high-waste non-recyclable components. The liquid distilled from the top of the dry distillation tower is then separated by the second and third distillation towers, and finally titanium tetrachloride and other media are obtained for recycling. Mother liquor recovery is a very difficult process. Since the mother liquor contains titanium tetrachloride and complex organic and inorganic substances, these substances continue to react during the thermal separation process. The solids formed by the side reactions are deposited in the distillation tower to block the filler, which is not conducive to mass transfer and heat transfer, so it needs to be repaired and cleaned.

[0003] The existing maintenance method makes it difficult to completely remove the packing layer in the tower in a short time, and it is difficult to clean it in a short time using water. After the equipment is opened, due to the special properties of titanium tetrachloride, it will react violently with air or water to corrode the equipment and packing, resulting in high maintenance costs, long maintenance time, and affected production efficiency. Utility Model Content

[0004] The utility model aims to provide an internal component disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower, which is simple and quick to operate, low in cost, easy to implement, and prolongs the service life of the packing, thereby solving the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal parts disassembly and assembly device for a polyolefin catalyst mother liquor distillation tower, comprising a segmented main shaft and a distillation tower inner barrel, a press-disassembly assembly is arranged at one end of the segmented main shaft, the press-disassembly assembly is connected to the segmented main shaft through a slot, the segmented main shaft extends to the interior of the distillation tower inner barrel, the press-disassembly assembly is located inside the distillation tower inner barrel, four main shaft guide brackets are arranged on the inner side of the press-disassembly assembly, and the main shaft guide brackets are connected to the segmented main shaft through a guide sleeve.

[0006] Preferably, a pneumatic punch is provided at the other end of the segmented main shaft, an air nozzle is provided at one end of the pneumatic punch, a through hole is provided inside the segmented main shaft, and the air nozzle is connected to the through hole via a slot.

[0007] Preferably, a support fixing plate is provided at one end of the inner cylinder of the distillation tower, and an auxiliary support rod is provided between the support fixing plate and the inner cylinder of the distillation tower.

[0008] Preferably, the segmented main shaft is connected to the bracket fixing plate via a guide sleeve.

[0009] Preferably, the main shaft guide bracket includes a telescopic link and a bearing adapter sleeve, and the telescopic link is connected to the segmented main shaft by bolts.

[0010] Preferably, a wheel support shaft is arranged inside the bearing adapter sleeve, and the wheel support shaft is rotatably connected to the telescopic link through the bearing adapter sleeve. A pulley is arranged inside the wheel support shaft, and the pulley fits with the inner surface of the inner cylinder of the distillation tower.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the main shaft guide bracket is composed of a telescopic arm and a bearing adapter sleeve. The telescopic arm can be adjusted according to the inner diameter of the inner tube of the distillation tower, and a wheel support shaft is arranged inside the bearing adapter sleeve. A pulley is also arranged inside the wheel support shaft. The pulley fits the inner surface of the inner tube of the distillation tower. The pulley can be rotated and adjusted in direction through the wheel support shaft to move in conjunction with the segmented main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall front view of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the main shaft guide bracket structure of the utility model;

[0016] Figure 4 for Figure 3 A is an enlarged structural diagram of FIG.

[0017] In the figure: 1. Segmented main shaft; 2. Pneumatic punch; 3. Inner tube of distillation tower; 4. Bracket fixing plate; 5. Press-disassembly assembly; 6. Main shaft guide bracket; 101. Through hole; 201. Air nozzle; 401. Auxiliary support rod; 601. Telescopic connecting arm; 602. Bearing adapter sleeve; 6021. Pulley; 6022. Wheel support shaft. DETAILED DESCRIPTION

[0018] 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.

[0019] In order to solve the problem that it is difficult to separate the distillation tower and the packing in a short time in the existing maintenance and disassembly methods, the distillation tower packing is often scrapped due to maintenance and disassembly, the maintenance cost is high, the maintenance time is long, and the production efficiency is affected; please refer to Figure 1-4 , the utility model provides the following solutions:

[0020] An internal component disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower comprises a segmented main shaft 1 and a distillation tower inner cylinder 3, a compression disassembly assembly 5 is arranged at one end of the segmented main shaft 1, the compression disassembly assembly 5 is connected to the segmented main shaft 1 through a card slot, the diameter of the compression disassembly assembly 5 and the center rotating hole of the disc are determined according to 3 / 2 of the distillation tower packing diameter, and the compression disassembly assembly 5 is connected and fixed to the main shaft by bolts, the segmented main shaft 1 extends to the inside of the distillation tower inner cylinder 3, the compression disassembly assembly 5 is located inside the distillation tower inner cylinder 3, four main shaft guide brackets 6 are arranged on the inner side of the compression disassembly assembly 5, the main shaft guide bracket 6 is connected to the segmented main shaft 1 through a guide sleeve, and the main shaft guide bracket 6 It includes a telescopic arm 601 and a bearing adapter sleeve 602. The telescopic arm 601 is connected to the segmented main shaft 1 by bolts. The telescopic arm 601 can be adjusted according to the inner diameter of the distillation tower inner cylinder 3. A wheel support shaft 6022 is arranged inside the bearing adapter sleeve 602. The wheel support shaft 6022 is rotatably connected to the telescopic arm 601 through the bearing adapter sleeve 602. A pulley 6021 is arranged inside the wheel support shaft 6022. The pulley 6021 is fitted with the inner surface of the distillation tower inner cylinder 3. The pulley 6021 can be rotated and adjusted in direction through the wheel support shaft 6022 to move in coordination with the segmented main shaft 1.

[0021] A pneumatic punch 2 is provided at the other end of the segmented main shaft 1, and an air nozzle 201 is provided at one end of the pneumatic punch 2. A through hole 101 is provided inside the segmented main shaft 1, and the air nozzle 201 is connected to the through hole 101 through a slot. A bracket fixing plate 4 is provided at one end of the distillation tower inner tube 3, and an auxiliary support rod 401 is provided between the bracket fixing plate 4 and the distillation tower inner tube 3. The segmented main shaft 1 is connected to the bracket fixing plate 4 through a guide sleeve, one end of the main shaft is connected to the compression assembly 5 through a fastening bolt, and the other end is a universal connecting port, which can be connected to the pneumatic punch 2. Whether to connect the middle section shaft is determined according to the length of the single section of the distillation tower.

[0022] Working principle: according to the packing diameter 3 / 2 of the distillation tower, the diameter of the compression assembly 5 and the central rotating hole of the disc are determined, and the segmented main shaft 1 is connected and fixed with bolts. The segmented main shaft 1 extends to the inside of the inner tube 3 of the distillation tower, and the compression assembly 5 is located inside the inner tube 3 of the distillation tower. Four main shaft guide brackets 6 are arranged on the inner side of the compression assembly 5. The main shaft guide bracket 6 is connected to the segmented main shaft 1 through a guide sleeve. The main shaft guide bracket 6 includes a telescopic arm 601 and a bearing adapter sleeve 602. The telescopic arm 601 and the segmented main shaft 1 are connected through a screw. Bolted connection, the telescopic arm 601 can be adjusted according to the inner diameter of the distillation tower inner tube 3, a wheel support shaft 6022 is arranged inside the bearing adapter sleeve 602, the wheel support shaft 6022 is rotatably connected to the telescopic arm 601 through the bearing adapter sleeve 602, a pulley 6021 is arranged inside the wheel support shaft 6022, the pulley 6021 is fitted with the inner surface of the distillation tower inner tube 3, the pulley 6021 can be rotated and adjusted in direction through the wheel support shaft 6022, and moved in conjunction with the segmented main shaft 1.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower, comprising a segmented main shaft (1) and a distillation tower inner cylinder (3), characterized in that: A compression assembly (5) is provided at one end of the segmented main shaft (1), and the compression assembly (5) is connected to the segmented main shaft (1) via a slot. The segmented main shaft (1) extends to the interior of the distillation tower inner tube (3), and the compression assembly (5) is located inside the distillation tower inner tube (3). Four main shaft guide brackets (6) are provided on the inner side of the compression assembly (5), and the main shaft guide brackets (6) are connected to the segmented main shaft (1) via a guide sleeve.

2. The internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower according to claim 1, characterized in that: A pneumatic punch (2) is arranged at the other end of the segmented main shaft (1), an air nozzle (201) is arranged at one end of the pneumatic punch (2), a through hole (101) is arranged inside the segmented main shaft (1), and the air nozzle (201) is connected to the through hole (101) via a slot.

3. The internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower according to claim 1, characterized in that: A support fixing plate (4) is provided at one end of the distillation tower inner cylinder (3), and an auxiliary support rod (401) is provided between the support fixing plate (4) and the distillation tower inner cylinder (3).

4. The internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower according to claim 3, characterized in that: The segmented main shaft (1) is connected to the bracket fixing plate (4) via a guide sleeve.

5. The internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower according to claim 1, characterized in that: The main shaft guide bracket (6) comprises a telescopic link arm (601) and a bearing adapter sleeve (602); the telescopic link arm (601) is connected to the segmented main shaft (1) via bolts.

6. The internal parts disassembly and assembly device for a polyolefin catalyst mother liquid distillation tower according to claim 5, characterized in that: A wheel support shaft (6022) is arranged inside the bearing adapter sleeve (602), and the wheel support shaft (6022) is rotatably connected to the telescopic link (601) through the bearing adapter sleeve (602). A pulley (6021) is arranged inside the wheel support shaft (6022), and the pulley (6021) is in contact with the inner surface of the distillation tower inner cylinder (3).

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