A recovery device for heavy components of ethylene glycol still bottoms

Abstract

The utility model relates to a kind of ethylene glycol still residual liquid heavy component recovery device, including recovery tank, the recovery tank includes drop tank and the purifier being communicated with drop tank, the bottom of the purifier is communicated with processing tank;The purifier includes upper seat and lower seat, filter is equipped between the upper seat and lower seat, the filter is used to intercept impurity in the ethylene glycol still residual liquid into processing tank;Assembly, the assembly includes mounting bracket and the adjusting rod being rotatably installed in mounting bracket, the surface of the adjusting rod is threadedly installed with push plate, adjusting rod in assembly is matched with push plate, only need to rotate adjusting rod can drive lower seat to lift, make filter quickly separate from between upper seat and lower seat, reduce the length of time when pre-treatment unit stops, filter end is equipped with sealing ring, inner cylinder annular groove is equipped with sealing ring, and upper seat and lower seat are accurately docked by assembly mechanism, can effectively avoid the problem that sealing component is easily damaged in traditional disassembly, prevent residual liquid leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of ethylene glycol processing equipment, specifically to a device for recovering heavy components from ethylene glycol reactor residue. Background Technology

[0002] During the production of ethylene glycol, residual liquid containing solid impurities is generated. This residual liquid needs to be pretreated to remove impurities before it can enter the subsequent distillation unit to recover heavy components such as diethylene glycol and triethylene glycol. Otherwise, the impurities will clog the distillation column packing, contaminate the heat exchange equipment, and lead to a decrease in the operating efficiency of the unit or even shutdown for maintenance.

[0003] Currently, most filtration equipment used in the industry for the pretreatment of ethylene glycol reactor residue adopts a fixed structure design. The filter components are connected to the equipment shell by bolts, flange seals, or welding. Since ethylene glycol reactor residue is corrosive and has a large fluctuation in impurity content, the filter components need to be disassembled and replaced regularly to ensure the filtration effect. However, the traditional fixed structure is time-consuming to replace, requiring operators to perform multiple disassembly and assembly operations around the equipment, which increases labor intensity. Therefore, we need to provide a heavy component recovery device for ethylene glycol reactor residue. Utility Model Content

[0004] The purpose of this invention is to provide a device for recovering heavy components of ethylene glycol reactor residue. The adjusting rod in the assembly cooperates with the push plate. Simply rotating the adjusting rod can drive the lower seat to rise and fall, allowing the filter to quickly separate from the upper seat and the lower seat, reducing the downtime of the pretreatment unit and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for recovering heavy components from ethylene glycol reactor residue, comprising: A recycling tank, comprising a dispensing tank and a purifier connected to the dispensing tank, wherein a processing tank is connected to the bottom of the purifier; The purifier includes an upper seat and a lower seat, and a filter is provided between the upper seat and the lower seat. The filter is used to intercept impurities in the ethylene glycol residue entering the treatment tank. The assembly includes a mounting bracket and an adjusting rod rotatably mounted within the mounting bracket. A push plate is threaded onto the surface of the adjusting rod, and one side of the push plate is fixed to the surface of the lower seat so that the adjusting rod can rotate to adjust the height of the lower seat.

[0006] Preferably, the filter includes an outer cylinder, an inner cylinder, and a filter cartridge. The inner cylinder is fixedly installed inside the outer cylinder, and the filter cartridge is threadedly installed on the top and bottom of the side wall of the inner cylinder.

[0007] Preferably, the upper seat is fixed to one side of the mounting frame, and a disc is fixedly installed on the surface of both the upper seat and the lower seat. The inner groove of the disc is adapted to the end of the outer cylinder, and a sealing ring is fixedly installed at the end of the filter.

[0008] Preferably, the top and bottom of the inner cylinder are provided with annular grooves, and a sealing ring is provided in the annular grooves. The upper seat and the lower seat are slidably installed in the annular grooves on the adjacent side.

[0009] Preferably, the filter cartridge has an integrally formed metal filter plate inside, and a bracket is fixedly installed on the surface of the metal filter plate, the bracket being U-shaped.

[0010] Preferably, the bracket has an integrally formed actuating plate.

[0011] Preferably, the bottom of the lower seat is connected to a corrugated pipe, and the bottom of the corrugated pipe is connected to a pipe that communicates with the processing tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this utility model, the adjusting rod and push plate work together, and only the adjusting rod needs to be rotated to drive the lower seat to rise and fall, so that the filter can be quickly separated from the upper seat and the lower seat, reducing the downtime of the pretreatment unit. The filter end is equipped with a sealing ring, and the inner cylinder annular groove is equipped with a sealing ring. The upper seat and the lower seat are precisely connected through the assembly mechanism, which can effectively avoid the problem of easy damage to the sealing components in traditional disassembly and assembly, and prevent residual liquid leakage. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a perspective view of the assembly of this utility model; Figure 3 This is a perspective view of the outer cylinder separated from the upper and lower seats of this utility model; Figure 4 This is a perspective sectional view of the filter of this utility model; Figure 5 This is a three-dimensional sectional view of the outer and inner cylinders of this utility model.

[0014] In the diagram: 100, Recycling tank; 110, Dispensing tank; 120, Purifier; 121, Upper seat; 122, Lower seat; 130, Processing tank; 200, Filter; 210, Outer cylinder; 220, Inner cylinder; 230, Filter cartridge; 300, Assembly parts; 310, Mounting bracket; 320, Adjusting rod; 330, Push plate; 4, Disc; 5, Sealing ring; 6, Annular groove; 7, Sealing ring; 8, Metal filter plate; 9, Support; 10, Actuating plate; 11, Corrugated pipe. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a device for recovering heavy components from ethylene glycol reactor residue, comprising: The recycling tank 100 includes a dispensing tank 110 and a purifier 120 connected to the dispensing tank 110. The bottom of the purifier 120 is connected to a processing tank 130. Purifier 120 includes upper seat 121 and lower seat 122. A filter 200 is provided between upper seat 121 and lower seat 122. The filter 200 is used to intercept impurities in the ethylene glycol reactor residue entering the treatment tank 130. The assembly 300 includes a mounting frame 310 and an adjusting rod 320 rotatably mounted in the mounting frame 310. A push plate 330 is threadedly mounted on the surface of the adjusting rod 320. One side of the push plate 330 is fixed to the surface of the lower seat 122 so that the adjusting rod 320 can rotate to drive the lower seat 122 to adjust its height. Specifically, the adjusting rod 320 in the assembly 300 cooperates with the push plate 330. Simply rotating the adjusting rod 320 can drive the lower seat 122 to rise and fall, allowing the filter 200 to quickly separate from the upper seat 121 and the lower seat 122, reducing the downtime of the pretreatment unit. The filter 200 is equipped with a sealing ring 5 at its end, and the inner cylinder 220 has an annular groove 6 with a sealing ring 7. Furthermore, the upper seat 121 and the lower seat 122 are precisely connected through the assembly mechanism, which can effectively avoid the problem of easy damage to sealing components in traditional disassembly and assembly, and prevent residual liquid leakage.

[0017] The filter 200 includes an outer cylinder 210, an inner cylinder 220 and a filter cartridge 230. The inner cylinder 220 is fixedly installed inside the outer cylinder 210, and the filter cartridge 230 is threadedly installed on the top and bottom of the side wall of the inner cylinder 220. Furthermore, the outer cylinder 210 is a cylindrical structure with openings at both ends, and the inner cylinder 220 is coaxially fixed inside the outer cylinder 210. The top and bottom of the side wall of the inner cylinder 220 are both provided with internal threads. The outer wall of the filter cartridge 230 is provided with external threads that are compatible with the internal threads of the inner cylinder 220. The filter cartridge 230 can be detachably installed on the top and bottom of the side wall of the inner cylinder 220 through threaded engagement. The inner wall of the inner cylinder 220 is also provided with a limiting ring, which is located on the side of the filter cartridge 230 near the axis of the inner cylinder 220. It is used to limit the installation position of the filter cartridge 230 and prevent the filter cartridge 230 from being excessively screwed into the inner cylinder 220. The outer cylinder 210 and the inner cylinder 220 are made of corrosion-resistant metal materials, and the filter cartridge 230 is made of high-strength plastic or metal materials to adapt to the corrosive environment of the ethylene glycol reactor residue.

[0018] The upper seat 121 is fixed on one side of the mounting bracket 310. The upper seat 121 and the lower seat 122 are both fixedly mounted with a disc 4. The inner groove of the disc 4 is adapted to the end of the outer cylinder 210, and a sealing ring 5 is fixedly mounted on the end of the filter 200. Specifically, the upper seat 121 has a feeding channel that communicates with the feeding tank 110. The upper seat 121 and the lower seat 122 are both fixedly mounted with a disc 4. The disc 4 has a groove on the side near the filter cylinder 230. The size of the groove is adapted to the size of the end of the outer cylinder 210. The end of the outer cylinder 210 can be embedded in the groove. The top and bottom end faces of the outer cylinder 210 of the filter 200 are fixedly mounted with sealing rings 5. The sealing rings 5 ​​are made of elastic sealing material. When the end of the outer cylinder 210 is embedded in the groove of the disc 4, the sealing rings 5 ​​are squeezed between the inner wall of the annular groove and the end face of the outer cylinder 210.

[0019] The inner cylinder 220 has an annular groove 6 at both the top and bottom, and a sealing ring 7 is provided in the annular groove 6. The upper seat 121 and the lower seat 122 are slidably installed in the annular groove 6 on the adjacent side. It should be noted that annular grooves 6 are provided on the top and bottom end faces of the inner cylinder 220. The annular grooves 6 are distributed circumferentially along the axis of the inner cylinder 220. A sealing ring 7 is embedded in the annular groove 6. The sealing ring 7 is made of an oil-resistant and chemically corrosion-resistant elastic material. The annular surface on the adjacent side of the upper seat 121 and the lower seat 122 is adapted to the size of the annular groove 6. The annular surface can slide into the annular groove 6 and is in close contact with the sealing ring 7. When the assembly 300 drives the lower seat 122 to rise and fall, the sealing ring 7 is always in contact with the annular surface. Through the cooperation of the annular groove 6, the sealing ring 7 and the annular surface, a secondary seal is formed between the filter 200 and the upper seat 121 and the lower seat 122, which further improves the sealing performance.

[0020] The filter cartridge 230 has an integrally formed metal filter plate 8 inside, and a bracket 9 is fixedly installed on the surface of the metal filter plate 8. The bracket 9 is U-shaped. It is worth noting that the filter cartridge 230 has an integrally formed metal filter plate 8 inside. The surface of the metal filter plate 8 is evenly provided with filter holes. A bracket 9 is fixedly installed on one side of the metal filter plate 8. The bracket 9 has a U-shaped structure. Both ends of the bracket 9 are integrally formed with the surface of the metal filter plate 8. The metal filter plate 8 is made of stainless steel and has good strength and corrosion resistance.

[0021] The bracket 9 has an integrally formed actuating plate 10. The actuating plate 10 is set perpendicular to the side wall of the bracket 9. The actuating plate 10 and the bracket 9 are integrally formed and are made of the same metal or high-strength plastic material as the bracket 9. The contact area between the hand and the bracket 9 is increased by adding the actuating plate 10.

[0022] The bottom of the lower seat 122 is connected to a bellows 11, and the bottom of the bellows 11 is connected to a pipe that is connected to the processing tank 130. Specifically, the corrugated pipe 11 is made of flexible rubber or plastic material that is resistant to aging and corrosion, and has a certain ability to stretch and bend. When the assembly 300 drives the lower seat 122 to rise and fall, the corrugated pipe 11 can stretch and extend with the movement of the lower seat 122, so as to avoid damage to the rigid connection between the lower seat 122 and the pipe due to the movement of the lower seat 122.

[0023] The dosing tank 110, the treatment tank 130, and the control valve involved in this application are all implemented using existing mature technologies, which are conventional technical means in this field. Therefore, their specific circuit connections, control logic, and working processes will not be described in detail.

[0024] All threaded mounting surfaces in this application utilize a modified triangular thread with a self-locking function. The thread helix angle is designed to be 1.5°-2.5° to enhance the anti-loosening effect. After phosphating, the thread surface is coated with an 8-12μm Dacromet coating and impregnated with silicone sealant to form a sealing layer, resulting in excellent corrosion resistance. In addition, the thread can effectively expel dust, and it can still be used normally even if a small amount of dust adheres to it.

[0025] This device features a control valve at the bottom of the feeding tank 110. Opening the control valve allows residual liquid in the feeding tank 110 to pass through the upper seat 121 into the filter 200 for filtration, and then through the lower seat 122 into the treatment tank 130. When the filter 200 needs replacement, the control valve is closed, and the adjusting part at the lower end of the adjusting rod 320 is rotated using a hex wrench. The rotation of the adjusting rod 320 causes the push plate 330 and the lower seat 122 to move downwards. The lower seat 122 has a bellows 11 at its bottom, allowing the filter 200 to be removed from between the upper seat 121 and the lower seat 122. The two filter cartridges 230 inside the filter 200 are threaded onto the inner wall of the inner cylinder 220. The filter cartridge 230 with the metal filter plate 8 can be removed by manually rotating the bracket 9. The metal filter plate 8 located near the upper seat 121 has larger internal pores than the lower metal filter plate 8. The filter cartridge 230 has a gap that initially intercepts large particles of impurities and then intercepts small particles of impurities, achieving dual interception. The outer cylinder 210 has a marked arrow on its surface, and the metal filter plate 8 with larger gaps faces upwards to avoid subsequent installation errors. A toggle plate 10 is provided to increase the contact area between the hand and the bracket 9, making it easier to rotate the bracket 9. The metal filter plate 8 inside the filter cartridge 230 can be cleaned, allowing the filter 200 to be reused and avoiding waste. During installation, the filter 200 is placed between the upper seat 121 and the lower seat 122. Rotating the adjusting rod 320 moves the lower seat 122 upwards. The top and bottom of the outer cylinder 210 are provided with sealing rings 5, which are adapted to the annular grooves inside the disc body 4. At the same time, the top and bottom annular grooves 6 of the inner cylinder 220 are provided with sealing rings 7, which are adapted to the annular ends of the upper seat 121 and the lower seat 122 to form a secondary seal. Additionally, a limiting ring is provided on the inner wall of the inner cylinder 220 to limit the position of the filter cartridge 230.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recovering heavy components from ethylene glycol reactor residue, characterized in that, include: A recycling tank (100) includes a dispensing tank (110) and a purifier (120) connected to the dispensing tank (110). The bottom of the purifier (120) is connected to a processing tank (130). The purifier (120) includes an upper seat (121) and a lower seat (122), and a filter (200) is provided between the upper seat (121) and the lower seat (122). The filter (200) is used to intercept impurities in the ethylene glycol residue entering the treatment tank (130). The assembly (300) includes a mounting bracket (310) and an adjusting rod (320) rotatably mounted in the mounting bracket (310). A push plate (330) is threaded onto the surface of the adjusting rod (320). One side of the push plate (330) is fixed to the surface of the lower seat (122) so that the adjusting rod (320) can rotate to drive the lower seat (122) to adjust its height.

2. The device for recovering heavy components from ethylene glycol reactor residue according to claim 1, characterized in that: The filter (200) includes an outer cylinder (210), an inner cylinder (220) and a filter cartridge (230). The inner cylinder (220) is fixedly installed inside the outer cylinder (210), and the filter cartridge (230) is threadedly installed on the top and bottom of the side wall of the inner cylinder (220).

3. The device for recovering heavy components from ethylene glycol reactor residue according to claim 2, characterized in that: The upper seat (121) is fixed on one side of the mounting bracket (310). The upper seat (121) and the lower seat (122) are both fixedly mounted with a disc body (4). The inner groove of the disc body (4) is adapted to the end of the outer cylinder (210), and a sealing ring (5) is fixedly mounted on the end of the filter (200).

4. The apparatus for recovering heavy components from ethylene glycol reactor residue according to claim 2, characterized in that: The inner cylinder (220) has an annular groove (6) at both the top and bottom. A sealing ring (7) is provided in the annular groove (6). The upper seat (121) and the lower seat (122) are slidably installed in the annular groove (6) on the adjacent side.

5. The apparatus for recovering heavy components from ethylene glycol reactor residue according to claim 2, characterized in that: The filter cartridge (230) has an integrally formed metal filter plate (8) inside, and a bracket (9) is fixedly installed on the surface of the metal filter plate (8). The bracket (9) is U-shaped.

6. The apparatus for recovering heavy components from ethylene glycol reactor residue according to claim 5, characterized in that: The bracket (9) has an integrally formed actuating plate (10).

7. The apparatus for recovering heavy components from ethylene glycol reactor residue according to claim 1, characterized in that: The bottom of the lower seat (122) is connected to a corrugated pipe (11), and the bottom of the corrugated pipe (11) is connected to a pipe that is connected to the processing tank (130).

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