CN219239577U - Needle coke raw oil purifying system - Google Patents

Abstract

The utility model relates to the field of catalytic cracking slurry purification, in particular to a needle coke raw oil purification system which comprises a purification tank, wherein two filter units are arranged in the purification tank, a transposition mechanism is arranged in the purification tank, the two filter units are arranged on the transposition mechanism, a filter oil way and a back flush oil way are arranged on the purification tank, the two filter units are respectively connected to the filter oil way and the back flush oil way, and the transposition mechanism is used for switching the positions of the two filter units. The purification tank is internally and externally provided with two filtering units, the raw oil filtering work and the filtering unit cleaning work can be respectively carried out at the same time, the position of the filtering unit can be conveniently replaced through the transposition mechanism, the replacement time is shortened, and the purification efficiency is further improved.

Description

Needle coke raw oil purifying system

Technical Field

The utility model relates to the field of catalytic cracking slurry oil purification, in particular to a needle coke raw oil purification system.

Background

The catalytic cracking slurry oil is used as a high-quality raw material for producing needle coke, and the catalyst powder in the slurry oil can influence the quality of the needle coke, so that the catalytic slurry oil with high solid particle content needs to be effectively purified. The purified slurry oil can be used as needle coke raw material to greatly improve the use value after removing solid impurities.

For many years, many people at home and abroad adopt a plurality of separation methods and technologies such as high-speed centrifugal separation, high-temperature back flushing precise filtration separation, high-frequency vibration separation, high-temperature distillation separation, additive sedimentation separation and the like, and the separation methods and technologies have the defects of poor separation effect, high operation temperature, low efficiency, incapability of continuous production and the like, and the biggest defect is that all the existing technologies can not form solid separation of catalyst powder and can not realize thorough separation of the catalyst powder and slurry oil. Moreover, the technology has the problems of low efficiency and high cost, and can not bring any economic benefit to enterprises and bring other burdens.

The utility model provides a filter that can carry out back flush, publication number is CN209317144U, published Chinese patent No. 2019.08.30, its technical scheme is a filter that can carry out back flush, its characterized in that includes: the filter body and the seal head which is detachably connected with the filter body; two pairs of connecting lugs are arranged on the seal head and the filter body correspondingly, and connecting holes are respectively arranged in the centers of the connecting lugs; one pair of the connecting lugs is connected through a pin shaft, and the other pair of the connecting lugs is connected through a stud bolt; the upper side wall of the filter body is symmetrically provided with a filtrate inlet and a filtrate outlet, the filtrate inlet and the filtrate outlet are arranged on the same horizontal level, the lower side wall of the filter body is provided with a back flushing port, and the back flushing port and the filtrate inlet are positioned in the same vertical direction; the filter body is internally provided with a filter screen in an inclined manner, the included angle between the filter screen and the horizontal plane is not more than 30 degrees, and the lower part of the filter screen is provided with a filter element; the bottom wall of the filter body is provided with an opening which is communicated with a drain pipe of the filter body; the tail end of the blow-down pipe is provided with a blow-down outlet, and a sight glass is arranged on the side wall of the blow-down pipe so as to explore the state in the blow-down pipe, and the needle coke raw oil cannot be continuously filtered in the above patent, so that the purification efficiency of the needle coke raw oil is affected.

Disclosure of Invention

Aiming at the problem that needle coke raw oil cannot be filtered continuously in the prior art, the utility model provides a needle coke raw oil purifying system with low needle coke raw oil purifying efficiency.

The technical scheme adopted by the utility model for achieving the technical effects is as follows: the needle coke raw oil purifying system comprises a purifying tank, wherein two filtering units are arranged in the purifying tank, a transposition mechanism is arranged in the purifying tank, the two filtering units are arranged on the transposition mechanism, a filtering oil way and a back flushing oil way are arranged on the purifying tank, the two filtering units are respectively connected to the filtering oil way and the back flushing oil way, and the transposition mechanism is used for switching the positions of the two filtering units. The purification tank is internally and externally provided with two filtering units, the raw oil filtering work and the filtering unit cleaning work can be respectively carried out at the same time, the position of the filtering unit can be conveniently replaced through the transposition mechanism, the replacement time is shortened, and the purification efficiency is further improved.

Further, the transposition mechanism comprises a support frame, the support frame is arranged inside the purification tank, a rotatable transposition shaft is arranged on the support frame, and the two filtering units are arranged on the transposition shaft.

Further, the lower end of the support frame is fixedly connected with a transposition motor, and an output shaft of the transposition motor is fixedly connected with the transposition shaft. The transposition motor can drive the transposition shaft to rotate, so that manual replacement is avoided.

Further, a back flushing filter element is arranged in the filtering unit, and the diameter of solid particles filtered by the back flushing filter element is 0.1 mu m at minimum.

Further, the filtering oil way comprises a clarified oil storage tank, a raw oil inlet and a raw oil outlet are arranged on the purification tank, and the raw oil outlet is connected with the clarified oil storage tank.

Further, the raw oil inlet is positioned at the top of the purifying tank, and the raw oil outlet is positioned at the bottom of the purifying tank.

Further, the back flush oil way comprises a back flush oil slurry storage tank, a back flush oil slurry inlet and a back flush oil slurry outlet are arranged on the purification tank, and the back flush oil slurry outlet is connected with the back flush oil slurry storage tank.

Further, the back flush slurry inlet is positioned at the bottom of the purification tank, and the back flush slurry outlet is positioned at the top of the purification tank.

From the above technical scheme, the utility model has the following beneficial effects: the needle coke raw material oil with high solid particle content is effectively purified, so that the quality of the needle coke raw material is ensured. The back flushing filter element in the system adopts a back flushing regeneration technology, the service cycle of the back flushing filter element is prolonged, and the purpose of long-cycle high-precision operation of the slurry oil filter device is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

In the figure: 1. the device comprises a purifying tank, 2, a filtering unit, 3, a raw oil inlet, 4, a back flush slurry outlet, 5, a raw oil outlet, 6, a back flush slurry inlet, 7, a clear oil storage tank, 8, a back flush slurry storage tank, 9, a supporting frame, 10, a transposition shaft, 11, a transposition motor, 12 and a back flush filter element.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

According to the illustration in fig. 1, a needle coke raw oil purifying system comprises a purifying tank 1, wherein two filtering units 2 are arranged in the purifying tank 1, a transposition mechanism is arranged in the purifying tank 1, the two filtering units 2 are arranged on the transposition mechanism, a filtering oil way and a back flushing oil way are arranged on the purifying tank 1, the two filtering units 2 are respectively connected to the filtering oil way and the back flushing oil way, and the transposition mechanism is used for switching the positions of the two filtering units 2.

The transposition mechanism comprises a support frame 9, the support frame 9 is arranged inside a purification tank 1, a rotatable transposition shaft 10 is arranged on the support frame 9, two filtering units 2 are arranged on the transposition shaft 10, the lower end of the support frame 9 is fixedly connected with a transposition motor 11, an output shaft of the transposition motor 11 is fixedly connected with the transposition shaft 10, a back-flushing filter element 12 is arranged inside the filtering units 2, the diameter of solid particles filtered by the back-flushing filter element 12 is minimum to 0.1 mu m, a filtering oil way comprises a clear oil storage tank, a raw oil inlet 3 and a raw oil outlet 5 are arranged on the purification tank 1, the raw oil outlet 5 is connected with the clear oil storage tank 7, the raw oil inlet 3 is arranged at the top of the purification tank 1, the raw oil outlet 5 is arranged at the bottom of the purification tank, the back-flushing oil way comprises a back-flushing slurry storage tank 8, a back-flushing slurry inlet 6 and a back-flushing slurry outlet 4 are arranged on the purification tank 1, the back-flushing slurry inlet 6 is arranged at the bottom of the purification tank 1, and the back-flushing slurry outlet 4 is arranged at the top of the purification tank 1.

The working principle of the utility model is as follows: needle coke raw oil enters the purification tank 1 from the raw oil inlet 3, is purified by the back flush filter element 12, enters the clarified oil storage tank 7 from the raw oil outlet 5 through a pipeline, and after the filtering work is finished, the transposition motor 11 is started to drive the filtering unit 2 to rotate, back flush slurry oil enters the purification tank from the back flush slurry oil inlet 6, solid particles on the back flush filter element 12 are washed out by the back flush slurry oil, and the back flush slurry oil with the solid particles enters the back flush slurry oil storage tank 8 from the back flush slurry oil outlet 4.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a needle coke raw oil clean system, including purifying pot (1), be provided with filter unit (2) in purifying pot (1), its characterized in that, filter unit (2) are provided with two, are provided with transposition mechanism in purifying pot (1), and two filter unit (2) are installed on transposition mechanism, are provided with filtration oil circuit and back flush oil circuit on purifying pot (1), and two filter unit (2) are connected respectively on filtration oil circuit and back flush oil circuit, and transposition mechanism is used for switching the position of two filter unit (2).

2. The needle coke raw oil purification system according to claim 1, wherein the transposition mechanism comprises a support frame (9), the support frame (9) is arranged inside the purification tank (1), a rotatable transposition shaft (10) is arranged on the support frame (9), and the two filtering units (2) are arranged on the transposition shaft (10).

3. The needle coke raw oil purifying system according to claim 2, wherein the lower end of the supporting frame (9) is fixedly connected with a transposition motor (11), and an output shaft of the transposition motor (11) is fixedly connected with the transposition shaft (10).

4. The needle coke raw oil purification system according to claim 1, wherein a back flushing filter element (12) is arranged in the filtering unit (2), and the diameter of solid particles filtered by the back flushing filter element (12) is 0.1 μm at the minimum.

5. The needle coke raw oil purifying system according to claim 1, wherein the filtering oil path comprises a clarified oil storage tank, the purifying tank (1) is provided with a raw oil inlet (3) and a raw oil outlet (5), and the raw oil outlet (5) is connected with the clarified oil storage tank (7).

6. The needle coke raw oil purification system according to claim 5, wherein the raw oil inlet (3) is located at the top of the purification tank (1) and the raw oil outlet (5) is located at the bottom of the purification tank.

7. The needle coke raw oil purification system according to claim 1, wherein the back flush oil way comprises a back flush slurry storage tank (8), a back flush slurry inlet (6) and a back flush slurry outlet (4) are arranged on the purification tank (1), and the back flush slurry outlet (4) is connected with the back flush slurry storage tank (8).

8. The needle coke raw oil purification system according to claim 7, wherein the back flush slurry inlet (6) is located at the bottom of the purification tank (1), and the back flush slurry outlet (4) is located at the top of the purification tank (1).

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