Reaction kettle for processing lubricant base oil

Abstract

The utility model discloses a reaction kettle for lubricating oil base oil processing and relates to the technical field of lubricating oil base oil processing. The residual oil discharge pipeline is connected with a residual oil storage tank, a residual oil return pipeline is arranged on the residual oil storage tank, the residual oil return pipeline returns into the reaction kettle and is connected with an annular pipeline, the annular pipeline is positioned in the center of the reaction kettle above the residual oil discharge pipeline, and nozzles which are uniformly distributed on the circumference are arranged at the lower part of the annular pipeline. The reaction kettle has the beneficial effects that the valve of the residual oil discharge pipeline is opened when rectification is finished, residual oil flows into the residual oil storage tank, the circulating pump pumps the residual oil back into the annular pipeline, the bottom of the reaction kettle is flushed through the nozzle, and pulse liquid flow sprayed out of the nozzle increases the flushing strength under the pulse on-off state of the electromagnetic valve, so that the residual oil can be discharged out of the reaction kettle. Residual oil adhering to the bottom of the reaction kettle is flushed and discharged out of the reaction kettle, meanwhile, the filter cannot be blocked, and impurities are poured out regularly.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubricating oil base oil processing technical field especially relates to a kind of reaction kettles for lubricating oil base oil processing. BACKGROUND

[0002] Residual oil refined after petroleum is subjected to atmospheric pressure warming distillation, and different grades of base oil can be obtained after vacuum distillation treatment, and the residual oil adheres to the bottom of the reaction kettle after distillation, which affects the next distillation. SUMMARY

[0003] To solve the problem that residual oil cannot be discharged cleanly during the vacuum distillation of lubricating oil base oil, the utility model provides a reaction kettle for lubricating oil base oil processing.

[0004] The utility model provides a technical scheme: a reaction kettle for lubricating oil base oil processing, which comprises a reaction kettle, a raw material input pipeline, a vacuum pipeline, a distillate oil pipeline and a residual oil discharge pipeline are arranged on the reaction kettle, valves are arranged on the raw material input pipeline, the vacuum pipeline, the distillate oil pipeline and the residual oil discharge pipeline, the residual oil discharge pipeline is located at the lowermost part of the reaction kettle, the residual oil discharge pipeline is connected to a residual oil storage tank, a residual oil reflux pipeline is arranged on the residual oil storage tank, the residual oil reflux pipeline is connected to a ring-shaped pipeline in the reaction kettle, the ring-shaped pipeline is located at the center of the reaction kettle above the residual oil discharge pipeline, and nozzles are uniformly distributed around the lower part of the ring-shaped pipeline.

[0005] A circulating pump is arranged on the residual oil reflux pipeline, an electromagnetic valve is arranged on one side of the outlet of the circulating pump, and a damper is connected to the pipeline between the electromagnetic valve and the circulating pump.

[0006] The electromagnetic valve is normally open, and the energization mode of the electromagnetic valve is as follows: after the circulating pump is turned on, it is energized for 2s every 30s.

[0007] A filter is arranged on the residual oil discharge pipeline, the filter comprises a cylinder and a cover plate, an outlet is arranged at the lower part of the cylinder, an inlet is arranged at the upper part of the cover plate, the cylinder and the cover plate are sealingly connected through flanges, a filter frame is arranged in the cylinder, the filter frame has a cup-shaped upper opening structure, a bracket is arranged at the lower side of the filter frame, the bracket supports the filter frame and limits it horizontally, the bracket is fixedly connected to circumferentially distributed positioning columns A at the bottom, the lower part of the positioning columns A is fixedly connected to compression springs, the lower part of the compression springs is fixedly connected to positioning columns B, the positioning columns B are fixedly connected to the bottom of the cylinder, and a handle is arranged at the upper part of the filter frame.

[0008] The residual oil storage tank is provided with an electric heating device.

[0009] The beneficial effects of this utility model are as follows: when the distillation ends, the valve of the residual oil discharge pipe is opened, and the residual oil flows into the residual oil storage tank. The circulation pump pumps the residual oil back into the annular pipe and flushes the bottom of the reactor through the nozzle. Under the pulse switch state of the solenoid valve, the pulse liquid flow sprayed from the nozzle increases the flushing intensity, which washes away the residual oil adhering to the bottom of the reactor and discharges it from the reactor. At the same time, the filter will not be clogged, and the impurities are periodically poured out. Attached Figure Description

[0010] Appendix Fig. 1 This is a schematic diagram of the structure of this utility model;

[0011] Appendix Fig. 2 This is a schematic diagram of the filter structure in this utility model.

[0012] In the diagram, 1-Reaction vessel, 2-Raw material input pipe, 3-Vacuum pipe, 4-Distillate oil pipe, 5-Residual oil storage tank, 6-Residual oil discharge pipe, 7-Residual oil return pipe, 8-Filter, 9-Circulation pump, 10-Annular pipe, 11-Nozzle, 12-Solenoid valve, 13-Damper, 14-Cylinder, 15-Cover plate, 16-Filter frame, 17-Bracket, 18-Positioning column A, 19-Positioning column B, 20-Compression spring, 21-Handle. Detailed Implementation

[0013] like Figs. 1-2 As shown, a reaction vessel for processing lubricating oil base oil includes a reaction vessel 1. The reaction vessel 1 is provided with a raw material input pipe 2, a vacuum pipe 3, a distillate oil pipe 4, and a residual oil discharge pipe 6. Valves are provided on the raw material input pipe 2, vacuum pipe 3, distillate oil pipe 4, and residual oil discharge pipe 6. The residual oil discharge pipe 6 is located at the bottom of the reaction vessel 1 and is connected to a residual oil storage tank 5. The residual oil storage tank 5 is provided with a residual oil return pipe 7. The residual oil return pipe 7 returns to the reaction vessel 1 and connects to an annular pipe 10. The annular pipe 10 is located at the center of the reaction vessel 1 above the residual oil discharge pipe 6. The lower part of the annular pipe 10 is provided with nozzles 11 evenly distributed around the circumference.

[0014] A circulation pump 9 is installed on the residual oil return pipeline 7. A solenoid valve 12 is installed on the outlet side of the circulation pump 9 on the residual oil return pipeline 7. A damper 13 is connected to the pipeline between the solenoid valve 12 and the circulation pump 9. When the solenoid valve is closed, the damper 13 can play a buffering role.

[0015] Solenoid valve 12 is normally open. The solenoid valve 12 is energized in the following way: after the circulation pump 9 is turned on, it is energized for 2 seconds every 30 seconds, and the liquid flow pumped out by the circulation pump 9 forms a pulse liquid flow.

[0016] The lubricating oil base oil is vacuum distilled, a high vacuum unit is opened to draw vacuum, until the system vacuum degree is not more than 15 pa, then the conductive oil of 250 DEG C is introduced to heat, gradually increasing the temperature; after reaching the distillation temperature, constant temperature distillation is carried out to obtain the required cut oil raw material, when the temperature of the reaction kettle 1 drops, the heating conductive oil is stopped and cold conductive oil is used for circulation cooling, when the temperature drops below 100 DEG C, the rectification is finished, at this time, the valve of the residual oil discharge pipeline 6 is opened, the residual oil flows into the residual oil storage tank 5, the circulating pump 9 pumps the residual oil back into the annular pipeline 10, and the bottom of the reaction kettle 1 is washed through the nozzle 11, under the pulse switch state of the electromagnetic valve 12, the pulse liquid flow of the nozzle 11 increases the washing intensity, and the residual oil adhered to the bottom of the reaction kettle 1 is washed and discharged from the reaction kettle 1.

[0017] The residual oil discharge pipeline 6 is provided with a filter 8, the filter 8 comprises a cylinder body 14 and a cover plate 15, the lower part of the cylinder body 14 is provided with an outlet, the upper part of the cover plate 15 is provided with an inlet, the cylinder body 14 and the cover plate 15 are sealingly connected through flanges, the cylinder body 14 is provided with a filter frame 16, the filter frame 16 is a cup-shaped open structure, the lower side of the filter frame 16 is provided with a bracket 17, the bracket 17 supports the filter frame 16 and limits the horizontal position, the bottom of the bracket 17 is fixedly connected with circumferentially distributed positioning columns A 18, the lower part of the positioning column A 18 is fixedly connected with a compression spring 20, the lower part of the compression spring 20 is fixedly connected with a positioning column B 19, and the positioning column B 19 is fixedly connected to the bottom of the cylinder body 14, and the upper part of the filter frame 16 is provided with a handle 21.

[0018] The filter frame 16 is elastically connected with the cylinder body 14, the inflowing pulse fluid causes the filter frame 16 to vibrate up and down, and the filter frame 16 will not be blocked, and the filter frame 16 is taken out regularly to pour out the intercepted impurities.

[0019] The residual oil storage tank 5 is provided with an electric heating device for supplementing heat.

Claims

1. A reaction vessel for processing lubricating oil base oil, comprising a reaction vessel (1), characterized in that: The reactor (1) is equipped with a raw material input pipe (2), a vacuum pipe (3), a distillate oil pipe (4) and a residual oil discharge pipe (6). Valves are provided on the raw material input pipe (2), the vacuum pipe (3), the distillate oil pipe (4) and the residual oil discharge pipe (6). The residual oil discharge pipe (6) is located at the bottom of the reactor (1). The residual oil discharge pipe (6) is connected to the residual oil storage tank (5). The residual oil storage tank (5) is equipped with a residual oil return pipe (7). The residual oil return pipe (7) returns to the reactor (1) and connects to the annular pipe (10). The annular pipe (10) is located at the center of the reactor (1) above the residual oil discharge pipe (6). The lower part of the annular pipe (10) is equipped with nozzles (11) evenly distributed around the circumference. A circulation pump (9) is installed on the residual oil return pipeline (7). A solenoid valve (12) is installed on the outlet side of the circulation pump (9) on the residual oil return pipeline (7). A damper (13) is connected to the pipeline between the solenoid valve (12) and the circulation pump (9). The solenoid valve (12) is normally open. The solenoid valve (12) is energized in the following manner: after the circulating pump (9) is turned on, it is energized for 2 seconds every 30 seconds.

2. The reaction vessel for processing lubricating oil base oil according to claim 1, characterized in that: A filter (8) is provided on the residual oil discharge pipe (6). The filter (8) includes a cylinder (14) and a cover plate (15). The lower part of the cylinder (14) is provided with an outlet, and the upper part of the cover plate (15) is provided with an inlet. The cylinder (14) and the cover plate (15) are connected by a flange seal. A filter frame (16) is provided inside the cylinder (14). The filter frame (16) is a cup-shaped structure with an open upper part. A bracket (17) is provided on the lower side of the filter frame (16). The bracket (17) lifts the filter frame (16) and limits its lateral position. The bottom of the bracket (17) is fixedly connected to a circumferentially distributed positioning column A (18). The lower part of the positioning column A (18) is fixedly connected to a compression spring (20). The lower part of the compression spring (20) is fixedly connected to a positioning column B (19). The positioning column B (19) is fixedly connected to the bottom of the cylinder (14). A handle (21) is provided on the upper part of the filter frame (16).

3. The reaction vessel for processing lubricating oil base oil according to claim 1, characterized in that: The residual oil storage tank (5) is equipped with an electric heating device.

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