Ethylene quenching oil tower polymerization inhibitor separation device

By employing a bidirectional stirring design and a simplified filter replacement mechanism, the problems of uneven mixing and low separation efficiency in the ethylene quench oil tower polymerization inhibitor separation unit were solved, achieving thorough mixing and efficient separation of ethylene and polymerization inhibitor, thus improving the safety and operational stability of the unit.

CN223747058UActive Publication Date: 2026-01-02JIANGYIN SHENGYUAN TECH CO LTD
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Patent Information

Application Number
CN202423131807.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-01-02
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing ethylene quench oil tower polymerization inhibitor separation devices suffer from problems such as uneven mixing, low separation efficiency, and uneven equipment wear, resulting in insufficient mixing of ethylene and polymerization inhibitors and affecting the separation effect.

Method used

The device employs a bidirectional stirring design, using a motor-driven bevel gear transmission system to drive the rotating rod and stirring blades for bidirectional stirring. Combined with the cooperation of scrapers and baffles, it achieves uniform mixing of ethylene and polymerization inhibitors. Impurities are filtered through an ultrafiltration screen, and a simplified screen replacement mechanism is designed to improve safety and efficiency.

Benefits of technology

This process ensures thorough mixing of ethylene and the polymerization inhibitor, improves separation efficiency, reduces equipment wear, lowers energy consumption and pollutant emissions, and guarantees operational safety and stable operation of the separation unit.

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Abstract

The utility model discloses a polymerization inhibitor separation device for an ethylene quenching oil tower, which belongs to the technical field of ethylene production and comprises a separation barrel, a top cover detachably mounted at the top of the separation barrel, a frame fixedly mounted at the top of the top cover, a motor fixedly mounted on one side of the frame, a bevel gear I fixedly mounted at the output end of the motor, and a bevel gear II fixedly mounted at the output end of the bevel gear I; a sleeve and a second bevel gear are rotationally installed in the frame body, a rotating rod is fixedly installed at the bottom of the second bevel gear, a third bevel gear is fixedly installed at the top of the sleeve, multiple sets of connecting rods are fixedly installed on the outer side of the sleeve, multiple sets of scraping plates are fixedly installed on one sides of the multiple sets of connecting rods, and multiple sets of baffles are fixedly installed on the inner sides of the multiple sets of scraping plates. A plurality of groups of stirring blades are fixedly mounted on the outer side of the rotating rod, and a mounting seat is fixedly mounted at the bottom of the separation barrel, so that a more complex flow field can be generated in the separation barrel through two-way stirring, full mixing of ethylene and a polymerization inhibitor is promoted, and compared with traditional one-way stirring, the mixing effect is more remarkable, and the separation efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to ethylene production technical field especially relates to a kind of ethylene quenching oil tower polymerization inhibitor separation device. BACKGROUND

[0002] In the ethylene production process, the polymerization inhibitor in the quenching oil tower needs to be separated from ethylene to ensure the purity and quality of ethylene. Currently, the commonly used polymerization inhibitor separation device has problems such as uneven mixing, low separation efficiency, and uneven equipment wear. Therefore, it is of great practical significance to design a high-efficiency and stable ethylene quenching oil tower polymerization inhibitor separation device.

[0003] A kind of ethylene quenching oil tower polymerization inhibitor separation device in the prior art, single direction stirring is usually easy to form stirring dead angle in separation device, leading to that ethylene and polymerization inhibitor cannot be fully mixed, partial area can be in the state of not being fully stirred all the time, so that polymerization inhibitor cannot uniformly contact with ethylene, affecting separation effect;Therefore we propose a kind of ethylene quenching oil tower polymerization inhibitor separation device to solve this problem. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of ethylene quenching oil tower polymerization inhibitor separation device to solve the problems raised in the above background.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A kind of ethylene quenching oil tower polymerization inhibitor separation device, comprising: a separation bucket, the top of the separation bucket is detachably installed with a top cover, the top of the top cover is fixedly installed with a frame, the frame is fixedly installed with a motor on one side, the output end of the motor is fixedly installed with a bevel gear one, the inside of the frame is rotatably installed with a sleeve and a bevel gear two, the bottom of the bevel gear two is fixedly installed with a rotating rod, the top of the sleeve is fixedly installed with a bevel gear three, the outside of the sleeve is fixedly installed with multiple groups of connecting rods, multiple groups of the connecting rods are fixedly installed with multiple groups of scrapers on one side, the inside of multiple groups of the scrapers is fixedly installed with multiple groups of baffles, the outside of the rotating rod is fixedly installed with multiple groups of stirring blades, the bottom of the separation bucket is fixedly installed with a mounting seat, the inside of the mounting seat is slidably installed with an ultrafiltration filter screen, the side of the ultrafiltration filter screen is fixedly installed with a handle, the bottom of the mounting seat is communicated with a mixed liquid storage tank, the bottom of the mixed liquid storage tank is communicated with a discharge valve, the inside of the top cover is communicated with an ethylene feed inlet and a polymerization inhibitor feed inlet.

[0007] Preferably, the two sides of the mounting base are internally slidably mounted with circular plates, one side of the two groups of circular plates is fixedly mounted with a circular rod, one side of the two groups of circular rods is fixedly mounted with a pull ring, one side of the two groups of pull rings is fixedly mounted with an insertion rod, the two groups of insertion rods are movably inserted into the two sides of the mounting base and the two sides of the ultrafiltration filter screen, and the outer sides of the two groups of circular rods are sleeved with return springs.

[0008] Preferably, the bevel gear one is arranged in the interior of the frame body, the bevel gear one, the bevel gear two and the bevel gear three are engaged with each other, the rotating rod is rotatably arranged in the interior of the sleeve and the bevel gear three, and the sleeve is rotatably arranged in the interior of the top cover.

[0009] Preferably, the scraper is attached to the inner wall of the separation barrel, the outer side of the separation barrel is fixedly mounted with a support base, the bottom of the support base is fixedly mounted with four groups of supporting legs, the interior of the mounting base is provided with a sliding groove, and the two sides of the ultrafiltration filter screen are slidably arranged in the corresponding sliding grooves.

[0010] Preferably, the two sides of the mounting base are internally slidably mounted with circular plates, one side of the two groups of circular plates is fixedly mounted with a circular rod, one side of the two groups of circular rods is fixedly mounted with a pull ring, one side of the two groups of pull rings is fixedly mounted with an insertion rod, the two groups of insertion rods are movably inserted into the two sides of the mounting base and the two sides of the ultrafiltration filter screen, and the outer sides of the two groups of circular rods are sleeved with return springs.

[0011] Preferably, the two sides of the ultrafiltration filter screen and the two sides of the mounting base are provided with insertion grooves, and the two groups of insertion rods are movably inserted into the corresponding insertion grooves.

[0012] In the utility model, the circular rod, the circular plate and the insertion rod are moved in the circular sliding groove through the pull ring, the insertion rod is separated from the ultrafiltration filter screen, the return spring is contracted, the locking of the ultrafiltration filter screen is released, the replaced ultrafiltration filter screen can be installed and locked without external force through the elastic force of the return spring, the design avoids the complex dismounting and mounting operation when the ultrafiltration filter screen is replaced, the opportunity of the operator contacting the dangerous part is reduced, the safety of operation is improved, the good running state of the separation device is ensured through timely replacement of the ultrafiltration filter screen, the separation effect of the polymerization inhibitor is improved, the influence of the polymerization inhibitor on the subsequent process is reduced, which helps to reduce the energy consumption and pollutant emission in the ethylene production process, and realizes the production target of environmental protection and energy saving.

[0013] The utility model discloses reasonable structure design, through setting up motor drive bevel gear one carries out rotation, and then drive bevel gear two and bevel gear three carry out opposite rotation direction, and then bevel gear two drive the mixing and stirring of the ethylene and the polymerization inhibitor in the separation bucket inside with the stirring blade of the rotating rod that the opposite direction rotation of sleeve, connecting rod, sliding plate and baffle is carried out to separation bucket inside can be scraped and swept, and the mixing and stirring of two directions and more uniform are realized under the mutual cooperation of baffle and stirring blade, and this bidirectional stirring can produce more complex flow field in separation bucket, promote the full mixing of ethylene and polymerization inhibitor, and compared with traditional single direction stirring, the mixing effect is more remarkable, and separation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of ethylene quenching oil tower polymerization inhibitor separation device's three-dimensional structure schematic diagram that the utility model proposes;

[0015] Figure 2 It is a kind of ethylene quenching oil tower polymerization inhibitor separation device's sectional structure schematic diagram that the utility model proposes;

[0016] Figure 3 It is a kind of ethylene quenching oil tower polymerization inhibitor separation device's partial sectional structure schematic diagram that the utility model proposes;

[0017] Figure 4 It is Figure 3 Local enlarged view of A portion in.

[0018] In the drawing: 1, separation bucket;2, top cover;3, support seat;4, support leg;5, ethylene feed inlet;6, polymerization inhibitor feed inlet;7, motor;8, frame;9, discharge valve;10, mounting seat;11, handle;12, ultrafiltration filter screen;13, bevel gear one;14, bevel gear two;15, rotating rod;16, bevel gear three;17, sleeve;18, connecting rod;19, stirring blade;20, scraper;21, baffle;22, mixed liquid storage tank;23, pull ring;24, plug rod;25, round rod;26, return spring;27, round plate. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.

[0020] Refer to Figures 1-4The utility model relates to an ethylene quenching oil column inhibitor separation device, including: the separation bucket 1, the top of separation bucket 1 is detachably installed with top cover 2, the top of top cover 2 is fixedly installed with frame 8, one side of frame 8 is fixedly installed with motor 7, the output of motor 7 is fixedly installed with bevel gear no. 13, the inside rotation of frame 8 is installed with sleeve 17 and bevel gear no. 14, the bottom of bevel gear no. 14 is fixedly installed with the rotation rod 15, the top of sleeve 17 is fixedly installed with bevel gear no. 16, the outside of sleeve 17 is fixedly installed with a plurality of connecting rods 18, a plurality of connecting rods 18 one side is fixedly installed with a plurality of scrapers 20, a plurality of scrapers 20's inside are fixedly installed with a plurality of baffle plates 21, the outside of rotation rod 15 is fixedly installed with a plurality of stirring blades 19, the bottom of separation bucket 1 is fixedly installed with mounting seat 10, the inside of mounting seat 10 is slidably installed with ultrafiltration filter screen 12, one side of ultrafiltration filter screen 12 is fixedly installed with handle 11, the bottom of mounting seat 10 is communicated with mixed liquor storage tank 22, the bottom of mixed liquor storage tank 22 is communicated with discharge valve 9, the inside of top cover 2 is communicated with ethylene feed inlet 5 and inhibitor feed inlet 6.

[0021] In the embodiment, the inside of the two sides of mounting seat 10 is slidably installed with a circular plate 27, one side of the two groups of circular plates 27 is fixedly installed with a circular rod 25, one side of the two groups of circular rods 25 is fixedly installed with a pull ring 23, one side of the two groups of pull rings 23 is fixedly installed with a plug rod 24, the two groups of plug rods 24 are movably inserted into the two sides of mounting seat 10 and the two sides of ultrafiltration filter screen 12, the outside of the two groups of circular rods 25 is sleeved with a reset spring 26, realizing quick disassembly, when it is necessary to replace ultrafiltration filter screen 12, the operation is simple and fast, and the maintenance time is greatly saved, when installing, the plug rod 24 can be inserted into and locked ultrafiltration filter screen 12 without additional tools by the elastic force of reset spring 26, and the installation efficiency is improved.

[0022] In the embodiment, the bevel gear no. 13 is arranged in the inside of frame 8, the bevel gear no. 13, the bevel gear no. 14 and the bevel gear no. 16 are engaged, the rotation rod 15 is rotatably installed in the inside of sleeve 17 and the bevel gear no. 16, and the sleeve 17 is rotatably installed in the inside of top cover 2, and the bidirectional stirring can generate more complex flow field in the inside of separation bucket 1, promotes the sufficient mixing of ethylene and inhibitor, compared with the traditional single direction stirring, the mixing effect is more remarkable, and the separation efficiency is improved.

[0023] In the embodiment, the scraper 20 is attached to the inner wall of the separation barrel 1, the outer side of the separation barrel 1 is fixedly installed with the support seat 3, the bottom of the support seat 3 is fixedly installed with the four groups of supporting legs 4, the inside of the mounting seat 10 is provided with the sliding groove, the two sides of the ultrafiltration filter screen 12 are slidingly installed in the corresponding sliding grooves, the scraper 20 is attached to the inner wall of the separation barrel 1, and substances attached to the barrel wall can be effectively scraped off in the rotating process. In the ethylene quenching oil tower inhibitor separation process, this can prevent the inhibitor or other impurities from accumulating on the barrel wall, ensure smooth fluid flow in the separation barrel 1, and improve the separation efficiency.

[0024] In the embodiment, the two sides of the mounting seat 10 are both internally provided with a circular sliding groove, the two groups of circular plates 27 are slidingly installed in the circular sliding grooves, and the two ends of the two groups of springs are respectively fixedly installed on one side of the corresponding circular plate 27 and one side of the corresponding circular sliding groove. This design provides stable guidance and support, and ensures that the circular plate 27 remains straight and stable during movement.

[0025] In the embodiment, the two sides of the ultrafiltration filter screen 12 and the two sides of the mounting seat 10 are both provided with the insertion slot, and the two groups of insertion rods 24 are movably inserted into the corresponding insertion slots. This design facilitates the replacement of the filter screen, reduces maintenance time and cost.

[0026] In the embodiment, in use, ethylene is added into the separation barrel 1 through the ethylene feed inlet 5, and the inhibitor is added into the separation barrel 1 through the inhibitor feed inlet 6. The motor 7 is started to drive the bevel gear one 13 to rotate, thereby driving the bevel gear two 14 and the rotating rod 15 to rotate forward, the bevel gear three 16 drives the sleeve 17 to rotate reversely, thereby driving the stirring blade 19 to stir through the rotating rod 15, and the scraper 20 is driven by the connecting rod 18 to scrape the inner wall of the separation barrel 1. Through the cooperation between the scraper 20 and the baffle 21, more uniform stirring is achieved, the ethylene and the inhibitor are fully mixed, the impurities in the mixed agent are filtered out through the ultrafiltration filter screen 12, the filtered mixed liquid is stored in the mixing storage tank after the mixing and stirring are completed, and the mixed liquid is discharged through the discharge valve 9. This bidirectional stirring can generate a more complex flow field in the separation barrel 1, promoting the full mixing of the ethylene and the inhibitor. Compared with the traditional single-direction stirring, the mixing effect is more significant, the separation efficiency is improved, the pull ring 23 is pulled to move in the opposite direction, thereby driving the circular rod 25 and the circular plate 27 to relatively move in the circular sliding groove, the reset spring 26 is retracted to drive the insertion rod 24 to disengage from the ultrafiltration filter screen 12, thereby releasing the locking of the ultrafiltration filter screen 12, and the ultrafiltration filter screen can be pulled out through the pull handle 11. Through the elastic force of the reset spring 26, the replaced ultrafiltration filter screen 12 can be installed and locked without external force. This design avoids the need for complex disassembly and installation operations when replacing the ultrafiltration filter screen 12, reduces the opportunity for operators to contact dangerous parts, and improves the safety of the operation.

[0027] The above has carried out the detailed introduction to the ethylene quenching oil tower polymerization inhibitor separation device provided by the utility model. The principle and implementation mode of the utility model are described in the text by applying specific examples. The above example description is only used for helping to understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways. These improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. An ethylene quench oil column polymerization inhibitor separation apparatus, characterized by, Include: The separation bucket (1), the top of the separation bucket (1) is detachably installed with the top cover (2), the top of the top cover (2) is fixedly installed with the frame (8), one side of the frame (8) is fixedly installed with the motor (7), the output end of the motor (7) is fixedly installed with the bevel gear (13), the inside of the frame (8) is rotatably installed with the sleeve (17) and the bevel gear (14), the bottom of the bevel gear (14) is fixedly installed with the rotating rod (15), the top of the sleeve (17) is fixedly installed with the bevel gear (16), the outside of the sleeve (17) is fixedly installed with a plurality of groups of connecting rods (18), one side of a plurality of groups of the connecting rods (18) is fixedly installed with a plurality of groups of scrapers (20), the inner side of a plurality of groups of the scrapers (20) is fixedly installed with a plurality of groups of baffles (21), the outside of the rotating rod (15) is fixedly installed with a plurality of groups of stirring leaves (19), the bottom of the separation bucket (1) is fixedly installed with the mounting seat (10), the inside of the mounting seat (10) is slidably installed with the ultrafiltration filter screen (12), one side of the ultrafiltration filter screen (12) is fixedly installed with the handle (11), the bottom of the mounting seat (10) is communicated with the mixed liquid storage tank (22), the bottom of the mixed liquid storage tank (22) is communicated with the discharge valve (9), the inside of the top cover (2) is communicated with the ethylene inlet (5) and the polymerization inhibitor inlet (6).

2. An ethylene quench oil column polymerization inhibitor separation apparatus according to claim 1, wherein, The inside of the two sides of the mounting seat (10) is slidably installed with the circular plate (27), one side of two groups of the circular plate (27) is fixedly installed with the circular rod (25), one side of two groups of the circular rod (25) is fixedly installed with the pull ring (23), one side of two groups of the pull ring (23) is fixedly installed with the plug rod (24), two groups of the plug rod (24) are movably inserted in the two sides of the mounting seat (10) and the two sides of the ultrafiltration filter screen (12), the outside of two groups of the circular rod (25) is sleeved with the reset spring (26).

3. An ethylene quench oil column polymerization inhibitor separation apparatus according to claim 1, wherein, The bevel gear (13) is arranged in the inside of the frame (8), the bevel gear (13), the bevel gear (14) and the bevel gear (16) are engaged, the rotating rod (15) is rotatably installed in the inside of the sleeve (17) and the bevel gear (16), the sleeve (17) is rotatably installed in the inside of the top cover (2).

4. The ethylene quench oil column polymerization inhibitor separation apparatus of claim 1, wherein, The scraper (20) is attached to the inner wall of the separation bucket (1), the outside of the separation bucket (1) is fixedly installed with the support seat (3), the bottom of the support seat (3) is fixedly installed with four groups of supporting legs (4), the inside of the mounting seat (10) is provided with a sliding groove, the two sides of the ultrafiltration filter screen (12) are slidably installed in the corresponding sliding grooves.

5. An ethylene quench oil column polymerization inhibitor separation apparatus according to claim 2, wherein, The inside of the two sides of the mounting seat (10) is provided with a circular sliding groove, two groups of the circular plate (27) are slidably installed in the circular sliding groove, and the two ends of two groups of the spring are fixedly installed on one side of the corresponding circular plate (27) and one side of the corresponding circular sliding groove.

6. An ethylene quench oil column polymerization inhibitor separation apparatus according to claim 2, wherein, The two sides of the ultrafiltration filter screen (12) and the two sides of the mounting seat (10) are provided with the insertion slot, and two groups of the plug rod (24) are movably inserted in the corresponding insertion slot.