Tar separation device for tar treatment oil

Abstract

The utility model discloses a tar separation device for tar disposal oil, and particularly relates to the technical field of tar separation, the device forms vacuum negative pressure between an input pipe and an output pipe through the movement of a moving seat and the sealing of a plug ball, so that tar can smoothly enter the input pipe from a first container, and an electric heating wire can provide constant heating temperature, so that the tar can be separated from the output pipe. The control assembly is located in the input pipe, opening and closing control over a pipeline is achieved through a rubber ring, a plug ball, a reset spring and other elements, the moving seat moves in the input pipe to control entering and exiting of tar, the tar conveying process is controllable, and the air electromagnetic valve is opened or closed at the proper time. By adjusting the pressure in the output pipe, the tar can smoothly flow to the second container, damage to the pipeline caused by too high or too low pressure is avoided, and due to the fact that the tar is not prone to condensation in the conveying process, the loss of the conveying efficiency of the pipeline is reduced, and tar treatment is more efficient and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tar separation, in particular to a tar separation device for tar disposal oil. Background Art

[0002] Petrochemical enterprises generally use the method of extraction and distillation to obtain butadiene from C4 raw materials, among which dimethylformamide (DMF) is the commonly used extraction solvent. After butadiene is distilled from DMF, DMF will continue to be used as a circulating solvent. In order to ensure the quality of the circulating solvent, it is necessary to remove the heavy component impurities in the circulating solvent - tar. Tar is also called coal tar, coal paste, coal distillate, and coal tar solution. DMF is usually extracted using the first container. The remaining tar containing a very small amount of DMF is in a flowing state above 120°C and is discharged from the kettle under insulation. Due to the small amount of tar, petrochemical enterprises generally discharge the tar directly to the ground, and then manually split it and send it to the incineration plant for disposal. Because the main components of tar are heavy components such as polymers, it cools rapidly in the air and condenses into a solid colloid with high toughness and a pungent odor, which seriously pollutes the environment and is very difficult to handle manually. Even if it is done manually, the tar will still stick together again during transportation and storage. There is currently no effective disposal method. Therefore, finding a safe way to deal with the solid tar produced in butadiene production is very important for safe and environmentally friendly production.

[0003] In the prior art, for example, a Chinese patent with publication number CN206591081U discloses a tar processing device, including a closed first container for containing DMF circulating solvent containing tar, a closed second container for containing ethylene disc oil, and a conveying system for conveying ethylene disc oil, the first container is connected to the second container, the first container and the second container are both provided with a heating device, the first container is provided with a pressure regulating device, and the discharge port of the conveying system is connected to the second container.

[0004] The above-mentioned device separates the tar through a closed first container containing a DMF circulating solvent containing tar and a closed second container for containing ethylene disc oil. However, the tar is not heated during the transportation through the pipeline. The tar will be cooled to a certain extent and will adhere to the inner wall of the pipeline, affecting the subsequent transportation. Therefore, we propose a tar separation device for tar disposal oil to solve the above-mentioned problem. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A tar separation device for tar disposal oil comprises an input pipe, an assembly chamber is provided inside the input pipe, one end of the input pipe is connected to a first container of DMF circulating solvent, an output pipe for connecting to a second container containing ethylene disc oil is fixedly connected to the bottom of the input pipe, an electric heating wire for preventing tar from cooling is installed in the assembly chamber, a control component for controlling the opening and closing of the pipeline is arranged at one end of the inner cavity of the input pipe, a driving component for cooperating with the control component to drive the tar to move to the output pipe is installed at one end of the input pipe away from the control component, a plurality of air solenoid valves are fixedly connected around the output pipe, and the plurality of air solenoid valves are evenly distributed around the axis of the output pipe.

[0008] Preferably, the driving assembly comprises a moving seat, the moving seat is placed in the input pipe, the moving seat is slidably connected to the wall of the input pipe, and the moving seat is provided with assembly ring grooves around it.

[0009] Preferably, a plurality of sealing rings are sleeved in the assembly ring groove, the outer ring wall of the sealing ring contacts and is slidably connected to the inner wall of the input pipe, and a telescopic cylinder is provided on the side of the moving seat away from the control component.

[0010] Preferably, a fixing seat is sleeved on the surface of the telescopic cylinder, the fixing seat is fixedly connected to the telescopic cylinder, the fixing seat is fixedly connected to one end of the input pipe away from the control component, and the output end of the telescopic cylinder is fixedly connected to the moving seat.

[0011] Preferably, an inclined window is provided at one end of the input tube away from the driving assembly, and the control assembly comprises a rubber ring, which is placed in the input tube, and the outer ring wall of the rubber ring is fixedly connected to the inner wall of the inclined window.

[0012] Preferably, a plug ball is provided on one side of the rubber ring close to the axis of the input pipe, the plug ball contacts the inner ring wall of the rubber ring, and the plug ball completely seals the inner ring surface of the rubber ring.

[0013] Preferably, a mounting groove is provided on a side of the plug ball away from the rubber ring, a return spring is built in the mounting groove, one end of the return spring is fixedly connected to the plug ball, and the other end of the return spring is sleeved with a fixing tube.

[0014] Preferably, the axis of the fixed cylinder coincides with the axis of the input pipe, connecting rods are fixedly connected on both sides of the fixed cylinder, the connecting rods on both sides are symmetrically distributed along the axis of the fixed cylinder, and one end of the connecting rod away from the plug ball is fixedly connected to the inner wall of the input pipe.

[0015] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0016] The device of the utility model forms a vacuum negative pressure between the input pipe and the output pipe through the movement of the moving seat and the closure of the plug ball, so that the tar can smoothly enter the input pipe from the first container and be discharged to the second container through the output pipe, thereby ensuring the efficient separation and transmission of the tar and improving the processing efficiency. The electric heating wire can provide a constant heating temperature, maintain the fluidity of the tar, and avoid clogging and condensation problems. The control component is located in the input pipe, and the opening and closing control of the pipeline is realized by components such as rubber rings, plug balls and reset springs. The driving component includes a moving seat and a telescopic cylinder, and the inlet and outlet of the tar are controlled by driving the moving seat to move in the input pipe. This design makes the tar transportation process controllable, convenient for operation and maintenance. It is equipped with multiple air solenoid valves that can be opened or closed at appropriate times to introduce air or adjust the pressure in the output pipe. This helps the tar to flow smoothly to the second container and avoids damage to the pipeline due to excessive or low pressure. Since tar is not easy to condense during transportation and the inner wall of the device is smooth, tar will not adhere, reducing the loss of pipeline transportation efficiency. The device has the advantages of efficient separation, anti-cooling, controllable transportation, adaptive adjustment and anti-adhesion in the tar treatment process, making tar treatment more efficient, convenient and reliable, and improving production efficiency and equipment life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the input tube of the utility model.

[0019] Figure 3 This is a schematic diagram of the assembly structure of the input tube and the control component of the utility model.

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] Figure 5 This is a schematic diagram of the structure of the control component of the utility model.

[0022] In the figure: 1. input pipe; 101. assembly chamber; 102. heating wire; 103. tilt window; 2. output pipe; 201. air solenoid valve; 3. drive assembly; 301. moving seat; 302. assembly ring groove; 303. sealing ring; 304. telescopic cylinder; 305. fixed seat; 4. control assembly; 401. rubber ring; 402. plug ball; 403. mounting groove; 404. return spring; 405. fixing cylinder; 406. connecting rod. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: Figure 1-Figure 5 As shown, the utility model provides a tar separation device for tar disposal oil, comprising an input pipe 1, an assembly chamber 101 is opened inside the input pipe 1, one end of the input pipe 1 is connected to a first container of DMF circulating solvent, an output pipe 2 for connecting to a second container containing ethylene disc oil is fixedly connected to the bottom of the input pipe 1, an electric heating wire 102 for preventing tar from cooling is installed in the assembly chamber 101, a control component 4 for controlling the opening and closing of the pipeline is arranged at one end of the inner cavity of the input pipe 1, a driving component 3 for cooperating with the control component 4 to drive the tar to move to the output pipe 2 is installed at one end of the input pipe 1 away from the control component 4, a plurality of air solenoid valves 201 are fixedly connected around the output pipe 2, and the plurality of air solenoid valves 201 are evenly distributed around the axis of the output pipe 2, the electric heating wire 102 prevents the tar from cooling and solidifying during transportation, and the air solenoid valve 201 can introduce air to adjust the pressure in the output pipe 2, and help the tar to flow smoothly to the second container, so that the tar can move smoothly.

[0025] Furthermore, a moving seat 301 is provided in the driving assembly 3, the moving seat 301 is placed in the input pipe 1, and the moving seat 301 is slidably connected to the pipe wall of the input pipe 1, and an assembly ring groove 302 is provided around the moving seat 301, and a plurality of sealing rings 303 are sleeved in the assembly ring groove 302, and the outer ring wall of the sealing ring 303 contacts and slidably connects with the inner wall of the input pipe 1, and a telescopic cylinder 304 is provided on the side of the moving seat 301 away from the control assembly 4, and a fixed seat 305 is sleeved on the surface of the telescopic cylinder 304, and the fixed seat 305 is sleeved on the surface of the fixed seat 305. 5 is fixedly connected to the telescopic cylinder 304, the fixed seat 305 is fixedly connected to the end of the input pipe 1 away from the control component 4, the output end of the telescopic cylinder 304 is fixedly connected to the moving seat 301, the telescopic cylinder 304 drives the moving seat 301 to move in the input pipe 1, in the initial movement stage, the moving seat 301 is away from the plug ball 402 in the input pipe 1, and a vacuum negative pressure is formed between the plug ball 402 and the moving seat 301, so that the plug ball 402 can be away from the rubber ring 401, and tar can enter the input pipe 1 from the first container.

[0026] Furthermore, an inclined window 103 is provided at one end of the input tube 1 away from the driving assembly 3, and the control assembly 4 includes a rubber ring 401, which is placed in the input tube 1, and the outer ring wall of the rubber ring 401 is fixedly connected to the inner wall of the inclined window 103, and a plug ball 402 is provided on the side of the rubber ring 401 close to the axis of the input tube 1, and the plug ball 402 contacts the inner ring wall of the rubber ring 401, and the plug ball 402 completely seals the inner ring surface of the rubber ring 401, and an installation groove 403 is provided on the side of the plug ball 402 away from the rubber ring 401, and a reset spring 404 is built in the installation groove 403, and one end of the reset spring 404 is fixedly connected to the plug ball 402, The other end of the return spring 404 is sleeved with a fixed cylinder 405, and the axis of the fixed cylinder 405 coincides with the axis of the input pipe 1. Connecting rods 406 are fixedly connected on both sides of the fixed cylinder 405, and the connecting rods 406 on both sides are symmetrically distributed along the axis of the fixed cylinder 405. The end of the connecting rod 406 away from the plug ball 402 is fixedly connected to the inner wall of the input pipe 1. During the movement of the moving seat 301, the air solenoid valve 201 is closed to ensure the vacuum state in the pipe. After the extraction is completed, the moving seat 301 is driven close to the plug ball 402. At this moment, the pipe is full of tar, and the plug ball 402 is forced to contact and close with the rubber ring 401, and the tar can only be discharged from the output pipe 2 into the second container.

[0027] Working principle: When using this device, the input pipe 1 is connected to the first container of the DMF circulating solvent to input tar into the device, and the telescopic cylinder 304 is started to drive the moving seat 301 to move in the input pipe 1. In the initial movement stage, the moving seat 301 is away from the plug ball 402 in the input pipe 1, and a vacuum negative pressure is formed between the plug ball 402 and the moving seat 301, so that the plug ball 402 can be away from the rubber ring 401, and the tar can enter the input pipe 1 from the first container. At the same time, during the movement of the moving seat 301, the air solenoid valve 201 is closed to ensure the vacuum state in the pipe. After the extraction is completed, the moving seat 301 is driven to move close to the rubber ring 401. The plug ball 402, at this moment the tube is full of tar, the plug ball 402 is forced to contact and seal with the rubber ring 401, the tar can only be discharged from the output tube 2 into the second container, the heating wire 102 prevents the tar from cooling and solidifying during the transportation process, when the moving seat 301 moves to the end close to the plug ball 402, its air solenoid valve 201 can be opened to introduce air, adjust the pressure in the output tube 2, and help the tar flow smoothly to the second container. The design of the control component 4, the drive component 3 and the air solenoid valve 201 makes the tar transportation process controllable, and the tar is not easy to condense and will not adhere to the inner wall of the pipeline, thereby improving the transportation efficiency of the pipeline.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A tar separation device for tar treatment oil, characterized in that: The invention comprises an input pipe (1), wherein an assembly chamber (101) is provided inside the input pipe (1), one end of the input pipe (1) is connected to a first container of a DMF circulating solvent, an output pipe (2) for connecting to a second container for containing ethylene disc oil is fixedly connected to the bottom of the input pipe (1), an electric heating wire (102) for preventing tar from cooling is installed in the assembly chamber (101), a control component (4) for controlling the opening and closing of the pipeline is arranged at one end of the inner cavity of the input pipe (1), a driving component (3) for cooperating with the control component (4) to drive the tar to move to the output pipe (2) is installed at one end of the input pipe (1) away from the control component (4), and a plurality of air solenoid valves (201) are fixedly connected around the output pipe (2), and the plurality of air solenoid valves (201) are evenly distributed around the axis of the output pipe (2).

2. A tar separation device for tar treatment oil according to claim 1, characterized in that: The driving assembly (3) comprises a moving seat (301), the moving seat (301) being placed in the input pipe (1), the moving seat (301) being slidably connected to the wall of the input pipe (1), and the moving seat (301) being provided with assembly ring grooves (302) around its periphery.

3. A tar separation device for tar treatment oil according to claim 2, characterized in that: A plurality of sealing rings (303) are sleeved in the assembly ring groove (302), the outer ring wall of the sealing ring (303) is in contact with the inner wall of the input pipe (1) and is slidably connected thereto, and a telescopic cylinder (304) is provided on the side of the moving seat (301) away from the control component (4).

4. A tar separation device for tar treatment oil according to claim 3, characterized in that: A fixed seat (305) is sleeved on the surface of the telescopic cylinder (304), the fixed seat (305) is fixedly connected to the telescopic cylinder (304), the fixed seat (305) is fixedly connected to an end of the input pipe (1) away from the control component (4), and the output end of the telescopic cylinder (304) is fixedly connected to the moving seat (301).

5. The tar separation device for tar treatment oil according to claim 1, characterized in that: An inclined window (103) is provided at one end of the input pipe (1) away from the driving assembly (3); the control assembly (4) comprises a rubber ring (401); the rubber ring (401) is placed in the input pipe (1); and the outer ring wall of the rubber ring (401) is fixedly connected to the inner wall of the inclined window (103).

6. A tar separation device for tar treatment oil according to claim 5, characterized in that: A plug ball (402) is arranged on one side of the rubber ring (401) close to the axis of the input pipe (1), the plug ball (402) contacts the inner ring wall of the rubber ring (401), and the plug ball (402) completely seals the inner ring surface of the rubber ring (401).

7. A tar separation device for tar treatment oil according to claim 6, characterized in that: A mounting groove (403) is provided on a side of the plug ball (402) away from the rubber ring (401), and a return spring (404) is built in the mounting groove (403). One end of the return spring (404) is fixedly connected to the plug ball (402), and the other end of the return spring (404) is sleeved with a fixing tube (405).

8. A tar separation device for tar treatment oil according to claim 7, characterized in that: The axis of the fixed cylinder (405) coincides with the axis of the input pipe (1), and connecting rods (406) are fixedly connected to both sides of the fixed cylinder (405). The connecting rods (406) on both sides are symmetrically distributed along the axis of the fixed cylinder (405), and one end of the connecting rod (406) away from the plug ball (402) is fixedly connected to the inner wall of the input pipe (1).

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