Vacuum distillation device for lubricant base oil

Abstract

The utility model discloses a lubricating oil base oil vacuum distillation device and relates to the technical field of lubricating oil base oil treatment. A supporting pipe and a positioning ring are welded on the base, the positioning ring is connected with a gear motor through a bolt and a nut, a shaft of the gear motor is fixedly connected with a rotating shaft through a jackscrew, the rotating shaft is in sealing connection with a center hole of the blind plate through a sealing ring, the rotating shaft extends into a lower end socket of the reaction kettle and then is fixedly connected with a supporting frame, and steel brushes are fully distributed on the lower portion of the supporting frame. The reaction kettle has the beneficial effects that the rotatable support frame and the steel brush are arranged at the bottom of the reaction kettle, after vacuum distillation is finished, the speed reducing motor is firstly started, impurities adhered in the sealing head are cleaned through the steel brush, and then the petroleum residue inlet and outlet pipe is opened to discharge the impurities, so that the operation is convenient and fast. The gear motor is hung below the positioning plate through the compression spring, and torque is transmitted through the bolt, so that the steel brush cleans the reaction kettle under the self-weight action of the gear motor, the rotating shaft and the supporting frame, and the cleaning effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubricating oil base oil processing technical field especially relates to a kind of lubricating oil base oil vacuum distillation device. 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, the lubricating oil base oil vacuum distillation device, when petroleum residue is introduced, since there are many impurities that cannot be distilled in the petroleum residue entering the device, the bottom will be adhered after distillation heating, resulting in a relatively time-consuming process of cleaning the petroleum residue in the device after distillation. SUMMARY

[0003] To solve the problem that residual oil is difficult to clean during the current vacuum distillation of lubricating oil base oil, the utility model provides a kind of lubricating oil base oil vacuum distillation device.

[0004] The technical scheme provided by the utility model is: a kind of lubricating oil base oil vacuum distillation device, including reaction kettle, reaction kettle is the vertical pressure vessel with the head in two ends, and the cylinder in the middle part, reaction kettle upper portion is equipped with distillate oil outlet pipe, reaction kettle outside is equipped with heat conducting oil jacket, the bottom of heat conducting oil jacket is equipped with heat conducting oil inlet, and the upper portion of heat conducting oil jacket is equipped with heat conducting oil outlet;

[0005] The head center of reaction kettle lower part is welded with sinking pipe, and the lower part of sinking pipe is welded with blind plate, and sinking pipe is connected with petroleum residue inlet and outlet pipe;

[0006] Reaction kettle bottom is equipped with base, and support pipe is welded on base, and positioning ring is welded on the upper portion of support pipe, and positioning ring is connected with speed reducer by bolt and nut, and the shaft of speed reducer is fixedly connected with rotating shaft by top wire, and the center hole is opened on blind plate, and rotating shaft extends into blind plate, and rotating shaft and the center hole of blind plate are sealed and connected by sealing ring, and rotating shaft is fixedly connected with support frame after extending into the lower head of reaction kettle, and steel brush is distributed on the lower portion of support frame, and the contour of steel brush corresponds to the inner surface of the head of reaction kettle lower part.

[0007] Compression spring is arranged between the upper end surface of positioning plate and nut.

[0008] Reaction kettle is welded with heat exchange fin in heat conducting oil jacket part, and the heat exchange fin is spiral up structure.

[0009] The head between reaction kettle lower part and cylinder is sealed and connected by flange.

[0010] The beneficial effects of this utility model are as follows: by setting a rotatable support frame and steel brush at the bottom of the reactor, after vacuum distillation, the geared motor is started first, and the steel brush cleans the impurities adhering to the head. Then, the oil residue inlet and outlet pipes are opened to discharge the impurities. The geared motor is suspended under the positioning plate by a compression spring and the torque is transmitted through bolts, so that the steel brush presses the surface of the head to clean the reactor under the weight of the geared motor, the rotating shaft and the support frame, thereby improving the cleaning effect. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Appendix Figure 2 It is attached Figure 1 Enlarged view of point A;

[0013] Appendix Figure 3 It is attached Figure 2 Enlarged view of point B.

[0014] In the diagram, 1-Reaction vessel, 2-Distillate oil outlet pipe, 3-Petroleum residue inlet / outlet pipe, 4-Submerged pipe, 5-Blind flange, 6-Rotating shaft, 7-Gear motor, 8-Base, 9-Support frame, 10-Steel brush, 11-Heat transfer oil jacket, 12-Heat transfer oil inlet, 13-Heat transfer oil outlet, 14-Heat exchange fins, 15-Support pipe, 16-Positioning ring, 17-Nut, 18-Bolt, 19-Setting screw. Detailed Implementation

[0015] like Figures 1 to 3 As shown, a vacuum distillation apparatus for lubricating oil base oil includes a reaction vessel 1, which is a vertical pressure vessel with end caps at both ends and a cylindrical middle section. The upper part of the reaction vessel 1 is provided with a distillate oil outlet pipe 2, and the outer side of the reaction vessel 1 is provided with a heat transfer oil jacket 11. The bottom of the heat transfer oil jacket 11 is provided with a heat transfer oil inlet 12, and the upper part of the heat transfer oil jacket 11 is provided with a heat transfer oil outlet 13.

[0016] A sinker pipe 4 is welded to the center of the head at the bottom of the reactor 1. A blind plate 5 is welded to the bottom of the sinker pipe 4. The oil residue inlet and outlet pipe 3 is connected to the side of the sinker pipe 4.

[0017] The bottom of the reactor 1 is provided with a base 8, on which a support tube 15 is welded. A positioning ring 16 is welded to the upper part of the support tube 15. The positioning ring 16 is connected to the geared motor 7 by bolts 18 and nuts 17. The shaft of the geared motor 7 is fixedly connected to the rotating shaft 6 by set screws 19. A center hole is opened on the blind plate 5. The rotating shaft 6 extends into the blind plate 5. The rotating shaft 6 and the center hole of the blind plate 5 are sealed and connected by a sealing ring. After the rotating shaft 6 extends into the lower end cap of the reactor 1, it is fixedly connected to the support frame 9. The lower part of the support frame 9 is covered with steel brushes 10. The outline of the steel brushes 10 corresponds to the inner surface of the lower end cap of the reactor 1.

[0018] A compression spring is arranged between the upper end surface of the positioning plate 16 and the nut 17.

[0019] By arranging the rotatable support frame 9 and the steel brush 10 at the bottom of the reaction kettle 1, after the vacuum distillation is completed, the speed reducer motor 7 is first started, the impurities adhered to the head are cleaned by the steel brush 10, then the petroleum residue inlet and outlet pipe 3 is opened to discharge the impurities, the speed reducer motor 7 is suspended below the positioning plate 16 by the compression spring, the torque is transmitted by the bolt 18, so that the steel brush 10 is pressed against the head surface to clean the reaction kettle 1 under the weight of the speed reducer motor 7, the rotating shaft 6 and the support frame 9 itself, thereby improving the cleaning effect.

[0020] The reaction kettle 1 is welded with heat exchange fins 14 at the part of the heat conducting oil jacket 11, the heat exchange fins 14 are in a spiral upward structure, the residence time of the heat conducting oil is increased, and the heat exchange efficiency is improved.

[0021] The head at the lower part of the reaction kettle 1 is sealed and connected with the cylinder through a flange, so that the head can be easily opened to install the support frame 9.

Claims

1. A vacuum distillation apparatus for lubricating oil base oil, comprising a reaction vessel (1), characterized in that: The reactor (1) is a vertical pressure vessel with end caps at both ends and a cylindrical middle section. The reactor (1) is equipped with a distillate oil outlet pipe (2) at the top and a heat transfer oil jacket (11) on the outside of the reactor (1). The heat transfer oil jacket (11) is equipped with a heat transfer oil inlet (12) at the bottom and a heat transfer oil outlet (13) at the top. A sinker pipe (4) is welded to the center of the head at the bottom of the reactor (1). A blind plate (5) is welded to the bottom of the sinker pipe (4). The sinker pipe (4) is connected to the petroleum residue inlet and outlet pipe (3). The bottom of the reactor (1) is provided with a base (8), and a support tube (15) is welded on the base (8). A positioning ring (16) is welded on the upper part of the support tube (15). The positioning ring (16) is connected to the geared motor (7) by bolts (18) and nuts (17). The shaft of the geared motor (7) is fixedly connected to the rotating shaft (6) by a set screw (19). A center hole is opened on the blind plate (5). The rotating shaft (6) extends into the blind plate (5). The rotating shaft (6) and the center hole of the blind plate (5) are sealed and connected by a sealing ring. After the rotating shaft (6) extends into the lower end cap of the reactor (1), it is fixedly connected to the support frame (9). The lower part of the support frame (9) is covered with steel brushes (10). The outline of the steel brushes (10) corresponds to the inner surface of the lower end cap of the reactor (1).

2. The vacuum distillation apparatus for lubricating oil base oil according to claim 1, characterized in that: A compression spring is provided between the upper end face of the positioning ring (16) and the nut (17).

3. The vacuum distillation apparatus for lubricating oil base oil according to claim 1, characterized in that: The reactor (1) has heat exchange fins (14) welded to the heat transfer oil jacket (11), and the heat exchange fins (14) have a spiral rising structure.

4. The vacuum distillation apparatus for lubricating oil base oil according to claim 1, characterized in that: The head at the bottom of the reactor (1) is sealed to the cylinder by a flange.

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