Automatic continuous discharging device for heavy residual liquid of coking benzene hydrogenation evaporation tower

Abstract

The utility model relates to the technical field of waste liquid discharge, in particular to an automatic continuous discharge device for heavy residual liquid of a coking benzene hydrogenation evaporation tower, which comprises a tank body and a float bowl in the tank body, a vertical partition plate is arranged in the tank body and divides the inside of the tank body, and the right end of the float bowl is connected to the inner wall of the top of the tank body through an extension spring. A stretching assembly is further arranged in the stretching spring, a heavy residual liquid injection pipe is arranged at the top of the tank body, a heavy residual liquid discharging pipe is arranged at the bottom of the tank body, the heavy residual liquid injection pipe and the heavy residual liquid discharging pipe are both communicated to the liquid inlet emptying area, and the floating cylinder moves up and down to open and close the heavy residual liquid discharging pipe. The discharging port of the heavy residual liquid discharging pipe is opened by utilizing the buoyancy of the buoy and the matching of the extension spring and the extension assembly, the continuous discharging device is convenient to use, and meanwhile, the working sensitivity of automatic discharging can be kept for a long time through the matching of the extension spring and the extension assembly.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid discharge technology, specifically an automatic continuous discharge device for heavy residual liquid from a coking benzene hydrogenation evaporation tower. Background Technology

[0002] A coking benzene evaporator is a device used to process coking benzene. Its function is to evaporate and separate coking benzene to obtain pure coking benzene or other related products. Coking benzene is an organic compound produced during the coal coking process. It has a high boiling point and requires specific methods for separation and purification. The coking benzene evaporator is one such commonly used device.

[0003] In the coking hydrogenated benzene production process, when hydrogenated benzene is vaporized into the gas phase in the evaporation tower, a small amount of heavy components in the light benzene cannot be vaporized at the standard process temperature. They accumulate at the bottom of the evaporation tower and undergo polymerization reaction under high temperature for a long time, eventually resulting in coking, which blocks the evaporation tower and its pipelines, posing a huge threat to production and safety.

[0004] To promptly discharge the heavy residual liquid from the evaporator, the current operation involves periodically and manually discharging it into the de-heavy liquid tower via the venting pipeline at the bottom of the evaporator. However, due to the long discharge intervals and the high density and viscosity of the heavy residual liquid in the evaporator, the discharge pipeline is prone to blockage. This often requires heating and unblocking the pipeline, which not only affects the stable operation of the evaporator process data but also increases the workload of operators, causing significant harm to the occupational health and safety of operators and the on-site environment, while also increasing operating costs.

[0005] Therefore, to reduce workload, springs are generally used to drive automatic discharge, thereby reducing the operator's workload. However, in existing structures, springs are prone to metal fatigue and permanent deformation after prolonged use. These phenomena reduce the driving effect of the springs and decrease the sensitivity of the automatic discharge operation. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic continuous discharge device for heavy residual liquid in a coking benzene hydrogenation evaporation tower. While realizing the automatic discharge of heavy residual liquid, the device controls the contact between the spring and the heavy residual liquid, and sets up a tensioning component to assist the spring in controlling the float, thereby reducing the spring load and extending its service life.

[0007] To achieve the above-mentioned technical effects, the present invention adopts the following technical solution:

[0008] An automatic continuous discharge device for heavy residual liquid from a coking benzene hydrogenation evaporation tower includes a tank and a float inside it. The tank is internally divided by a vertical partition into a liquid inlet / drainage zone on the left and a float control zone on the right. The vertical partition has float holes through which the floats can move vertically. The right end of the float is connected to the top inner wall of the tank via a tension spring, which also contains a tensioning assembly.

[0009] The tensioning assembly includes a tensioning sleeve and a strong magnetic plate and a rubber ring disposed inside it. The tensioning sleeve is a hollow cylinder. The rubber ring provides elastic force, and the strong magnetic plate provides attractive or repulsive force. The strong magnetic plate includes a first strong magnetic plate and a second strong magnetic plate. The first strong magnetic plate is located on the opposite left side of the tensioning sleeve, and the second strong magnetic plate is located on the opposite right side of the tensioning sleeve.

[0010] The tensioning assembly also includes a first connecting rod and a second connecting rod.

[0011] The left end of the first connecting rod is rotatably connected to the right end of the float, and the right end of the first connecting rod is connected to the left end face of the first strong magnetic plate.

[0012] The right end of the second connecting rod is rotatably connected to the inner wall of the top of the tank, and the left end of the second connecting rod is connected to the right end face of the second strong magnetic plate.

[0013] The top of the tank is equipped with a heavy residual liquid injection pipe, and the bottom of the tank is equipped with a heavy residual liquid discharge pipe. Both the heavy residual liquid injection pipe and the heavy residual liquid discharge pipe are connected to the liquid inlet and outlet area. The float opens and closes the heavy residual liquid discharge pipe by moving up and down.

[0014] Preferably, the top of the tank is equipped with a light benzene flushing pipe, which connects to the float control area, and the outlet of the light benzene flushing pipe is aligned with the tension spring. During use, the tension spring is flushed through the light benzene flushing pipe to prevent the heavy residual liquid from corroding the spring.

[0015] Preferably, the bottom of the tank is provided with a vent pipe, and the bottom of the vertical partition is provided with a connecting hole that connects the liquid inlet venting area and the float control area. By setting the vent pipe and the connecting hole, it is convenient to drain the heavy residual liquid and the light benzene used for cleaning in the tank, and to avoid the heavy residual liquid from solidifying and clogging the tank and various pipelines.

[0016] More preferably, the bottom of the tank is V-shaped or U-shaped, and the vent pipe is located at the lowest end of the bottom of the tank.

[0017] Preferably, the tank body is also equipped with a float support for supporting the float, and the top of the float support is flush with the inlet of the heavy residual liquid discharge pipe.

[0018] Preferably, the magnetic poles of the first and second strong magnetic plates attract each other, and the rubber ring is located between the first and second strong magnetic plates.

[0019] Preferably, the magnetic poles of the first and second strong magnetic plates repel each other, and the rubber ring includes a first rubber ring and a second rubber ring, with the first rubber ring located on the left side of the first strong magnetic plate and the second rubber ring located on the right side of the second strong magnetic plate.

[0020] The tensioning assembly, through the cooperation of an internal strong magnetic plate and a rubber ring, achieves the same control effect on the float as the tension spring. Therefore, the tensioning assembly can first share the load of the tension spring, and secondly, when the elasticity of the tension spring weakens, the tensioning assembly can replace the tension spring to perform the function of controlling the float, thereby extending the overall service life of the device.

[0021] The beneficial effects of this utility model are as follows:

[0022] The automatic continuous discharge device for heavy residual liquid in a coking benzene hydrogenation evaporation tower provided by this utility model utilizes the buoyancy of the float and the cooperation of the tension spring and tension assembly to open the discharge port of the heavy residual liquid discharge pipe. The continuous discharge device is convenient to use, controls costs, and can maintain the sensitivity of automatic discharge for a long time through the cooperation of the tension spring and tension assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the automatic continuous discharge device for heavy residual liquid in the coking benzene hydrogenation evaporation tower provided in Example 1;

[0024] Figure 2 This is a schematic diagram of the cooperation between the vertical partition and the pontoon in Embodiment 1;

[0025] Figure 3 This is a schematic diagram of the stretching component in Example 1;

[0026] The components include: 1. Tank body; 2. Vertical partition; 3. Float; 4. Tension spring; 5. Tension sleeve; 6. Strong magnetic plate; 7. Connecting rod; 8. Rubber ring; 9. Heavy residual liquid discharge pipe; 10. Light benzene flushing pipe; 11. Vent pipe; 12. Heavy residual liquid injection pipe; and 13. Float support. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] An automatic continuous discharge device for heavy residual liquid from a coking benzene hydrogenation evaporation tower, such as... Figures 1-3As shown, the system includes a tank body 1 and a float 3 inside it. A vertical partition 2 divides the interior of the tank body 1 into a liquid inlet / drainage zone on the left and a float control zone on the right. A hole for the float 3 is provided on the vertical partition 2, through which the float 3 passes and can move up and down. The right end of the float 3 is connected to the top inner wall of the tank body 1 via a tension spring 4. The tension spring 4 also contains a tensioning assembly.

[0030] The stretching assembly includes a stretching sleeve 5 and a strong magnetic plate 6 and a rubber ring 8 disposed inside it. The stretching sleeve 5 is a hollow cylinder. The rubber ring 8 is used to provide elastic force, and the strong magnetic plate 6 is used to provide attractive or repulsive force. The strong magnetic plate 6 includes a first strong magnetic plate and a second strong magnetic plate. The first strong magnetic plate is located on the opposite left side of the stretching sleeve 5, and the second strong magnetic plate is located on the opposite right side of the stretching sleeve 5.

[0031] In this embodiment, the magnetic poles of the first strong magnetic plate and the second strong magnetic plate repel each other. The rubber ring 8 includes a first rubber ring and a second rubber ring. The first rubber ring is located on the left side of the first strong magnetic plate and is in close contact with the first strong magnetic plate and the tension sleeve 5. The second rubber ring is located on the right side of the second strong magnetic plate and is in close contact with the second strong magnetic plate and the tension sleeve 5.

[0032] The tensioning assembly also includes a connecting rod 7, which comprises a first connecting rod and a second connecting rod.

[0033] The left end of the first connecting rod is rotatably connected to the right end of the float 3, and the right end of the first connecting rod is connected to the left end face of the first strong magnetic plate.

[0034] The right end of the second connecting rod is rotatably connected to the inner top wall of the tank 1, and the left end of the second connecting rod is connected to the right end face of the second strong magnetic plate.

[0035] The top of the tank body 1 is provided with a heavy residual liquid injection pipe 12, and the bottom of the tank body 1 is provided with a heavy residual liquid discharge pipe 9. Both the heavy residual liquid injection pipe 12 and the heavy residual liquid discharge pipe 9 are connected to the liquid inlet and outlet area. The float 3 opens and closes the heavy residual liquid discharge pipe 9 by moving up and down.

[0036] The top of the tank 1 is equipped with a light benzene flushing pipe 10, which connects to the float control area, and the outlet of the light benzene flushing pipe 10 is aligned with the tension spring 4. During use, the tension spring 4 is flushed through the light benzene flushing pipe 10 to prevent the heavy residual liquid from corroding the spring.

[0037] The bottom of the tank 1 is provided with a vent pipe 11, and the bottom of the vertical partition 2 is provided with a connecting hole that connects the liquid inlet and venting area and the float control area. By setting the vent pipe 11 and the connecting hole, it is convenient to drain the heavy residual liquid and the light benzene used for cleaning in the tank 1, and avoid the heavy residual liquid from solidifying and clogging the tank 1 and the pipelines.

[0038] The tank body 1 is also equipped with a float support 13 for supporting the float 3. The top of the float support 13 is flush with the inlet of the heavy residual liquid discharge pipe 9.

[0039] The tensioning assembly, through the cooperation of the internal strong magnetic plate 6 and the rubber ring 8, achieves the same control effect on the float 3 as the tension spring 4. Therefore, the tensioning assembly can first share the load of the tension spring 4, and secondly, when the elasticity of the tension spring 4 decreases, the tensioning assembly can replace the tension spring 4 to perform the function of controlling the float 3, thereby extending the overall service life of the device.

[0040] In actual use, in the initial state, the float 3 closes the heavy residual liquid discharge pipe 9, and the left end of the float 3 is supported by the float bracket 13, while the right end of the float 3 is supported by the vertical partition 2. The heavy residual liquid is injected into the liquid inlet and outlet area through the heavy residual liquid injection pipe 12. As the amount of heavy residual liquid increases, the heavy residual liquid lifts the float 3. At this time, the tension spring 4 and the tension assembly also lift the right end of the float 3 synchronously. The float 3 moves upward, the inlet of the heavy residual liquid discharge pipe 9 opens, and the heavy residual liquid is discharged through the heavy residual liquid discharge pipe 9.

[0041] During use, the tension spring 4 can be flushed and cleaned with the light benzene flushing pipe 10 according to the usage time. When stopping for maintenance, the vent pipe 11 can be opened to discharge all the heavy residual liquid and light benzene inside the tank 1.

[0042] Example 2

[0043] An automatic continuous discharge device for heavy residual liquid from a coking benzene hydrogenation evaporation tower differs from Embodiment 1 in that, in this embodiment, the magnetic poles of the first and second strong magnetic plates attract each other, and the rubber ring 8 is located between the first and second strong magnetic plates; simultaneously, the bottom of the tank 1 is V-shaped, and the vent pipe 11 is located at the lowest end of the bottom of the tank 1. All other structural features are the same as in Embodiment 1.

Claims

1. A kind of automatic continuous discharge device of heavy residual liquid of coking benzene hydrogenation evaporation tower, it is characterized in that, The application relates to a tank body (1) and a float (3) in the tank body (1), wherein the inside of the tank body (1) is provided with a vertical partition plate (2) which divides the inside of the tank body (1) into a liquid inlet emptying area on the left side and a float control area on the right side, the vertical partition plate (2) is provided with a float (3) hole, the float (3) passes through the float (3) hole and can move up and down in the float (3) hole, the right end of the float (3) is connected to the top inner wall of the tank body (1) through a tension spring (4), and a tension assembly is further arranged in the tension spring (4), The tension assembly comprises a tension sleeve (5), a strong magnetic plate (6) arranged in the tension sleeve (5) and a rubber ring (8), the tension sleeve (5) is a hollow cylinder, the rubber ring (8) is used for providing elastic force, and the strong magnetic plate (6) is used for providing attractive force or repulsive force, the strong magnetic plate (6) comprises a first strong magnetic plate and a second strong magnetic plate, the first strong magnetic plate is arranged on the left side of the tension sleeve (5), and the second strong magnetic plate is arranged on the right side of the tension sleeve (5), The tension assembly further comprises a first connecting rod and a second connecting rod, the left end of the first connecting rod is rotationally connected with the right end of the float (3), and the right end of the first connecting rod is connected with the left end face of the first strong magnetic plate, the right end of the second connecting rod is rotationally connected with the top inner wall of the tank body (1), and the left end of the second connecting rod is connected with the right end face of the second strong magnetic plate, the top of the tank body (1) is provided with a heavy residual liquid injection pipe (12), the bottom of the tank body (1) is provided with a heavy residual liquid discharge pipe (9), the heavy residual liquid injection pipe (12) and the heavy residual liquid discharge pipe (9) are both communicated to the liquid inlet emptying area, and the heavy residual liquid discharge pipe (9) is opened and closed by the up-down movement of the float (3).

2. The automatic continuous discharge device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 1, characterized in that, The top of the tank body (1) is provided with a light benzene flushing pipe (10), the light benzene flushing pipe (10) is communicated to the float control area, and the outlet of the light benzene flushing pipe (10) is aligned with the tension spring (4).

3. The automatic continuous discharge device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 2, characterized in that, The bottom of the tank body (1) is provided with a vent pipe (11), and the bottom of the vertical partition plate (2) is provided with a communication hole which communicates the liquid inlet emptying area and the float control area.

4. The automatic continuous discharge device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 3, characterized in that, The bottom of the tank body (1) is V-shaped or U-shaped, and the vent pipe (11) is located at the lowest end of the bottom of the tank body (1).

5. The automatic continuous draining device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 1, characterized in that, The inside of the tank body (1) is further provided with a float support (13) for supporting the float (3), and the top end of the float support (13) is flush with the inlet of the heavy residual liquid discharge pipe (9).

6. The automatic continuous draining device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 1, characterized in that, The magnetic poles of the first strong magnetic plate and the second strong magnetic plate are attracted to each other, and the rubber ring (8) is located between the first strong magnetic plate and the second strong magnetic plate.

7. The automatic continuous draining device for heavy residual liquid of the coking benzene hydro- evaporating tower according to claim 1, characterized in that, The magnetic poles of the first strong magnetic plate and the second strong magnetic plate repel each other, and the rubber ring (8) comprises a first rubber ring and a first rubber ring, the first rubber ring is located on the left side of the first strong magnetic plate, and the first rubber ring is located on the right side of the second strong magnetic plate.

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