Dewatering and deslagging system before regeneration of lubricating oil

Abstract

The utility model relates to a dewatering and deslagging system before regeneration of lubricating oil, and belongs to the technical field. The dehydrating and deslagging system used before lubricating oil regeneration comprises a raw material tank and a settling tank, the device is characterized in that the raw material tank is connected with a gear pump through a first discharging pipe, the gear pump is connected with a static mixer through a second discharging pipe, the static mixer is connected with a settling tank through a third discharging pipe, and the settling tank is connected with a second settling tank through a bottom discharging pipe; and a bypass dosing system is arranged on the second discharge pipe. By refining treatment before regeneration processing of the lubricating oil, impurities in the lubricating oil are removed before the lubricating oil enters formal treatment, and the static mixer arranged in the system is used for improving the mixing effect of raw oil and chemicals, so that the impurities in raw materials are removed.

Description

Technical Field

[0001] The utility model relates to a dehydration and slag removal system before lubricating oil regeneration, belonging to the technical field. Background Art

[0002] In the lubricating oil regeneration process, because the used lubricating oil contains a large amount of impurities, such as debris generated by friction of equipment during use, these impurities need to be initially removed in the lubricating oil regeneration process. Technical personnel in this field have been studying how to effectively remove impurities in lubricating oil waste oil by designing reasonable process flow and equipment combination, so as to provide a better foundation for subsequent regeneration processing. Utility Model Content

[0003] In order to effectively remove impurities in waste lubricating oil and provide a better basis for lubricating oil regeneration processing, the present application provides a dehydration and slag removal system before lubricating oil regeneration; by setting a reasonable equipment connection relationship.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A dehydration and slag removal system before lubricating oil regeneration includes a raw material tank and a sedimentation tank; the special feature is that the raw material tank is connected to a gear pump through a first discharge pipe, the gear pump is connected to a static mixer through a second discharge pipe, the static mixer is connected to the sedimentation tank through a third discharge pipe, and the sedimentation tank is connected to the second sedimentation tank through a bottom discharge pipe; a bypass dosing system is arranged on the second discharge pipe.

[0006] The advantages of the above technical solution are: a static mixer is set between the raw material tank and the sedimentation tank, and the dosing port of the refueling device is set before the static mixer, so that the added agent can be fully mixed before entering the sedimentation tank. First, the use efficiency of the agent is improved, and second, the mixing state is made more uniform; so that flocculation and sedimentation can be achieved faster in the sedimentation tank.

[0007] On the basis of the above technical solution, this application makes the following improvements and perfections to the above technical solution:

[0008] Furthermore, the bypass dosing system includes a medicine tank, the medicine tank is connected to a dosing pump via a fourth discharge pipe, and the dosing pump is connected to the second discharge pipe via a fifth discharge pipe; the dosing pump is a plunger pump.

[0009] The advantage of the above technical features in the present application is that the medicine can be added to the system in a quantitative manner through the dosing pump, thereby achieving economical use of the medicine.

[0010] Furthermore, a stirring device is installed on the side wall of the sedimentation tank, and the stirring device includes a stirring motor and a stirring blade. The stirring blade is installed inside the sedimentation tank, and the stirring motor is installed on the outer side wall of the sedimentation tank.

[0011] The beneficial effect of the above technical features in the present application is that by providing a stirring device, the mixed liquid in the upper layer of the tank body is stirred, thereby further improving the mixing of the raw liquid to be treated and the reagent.

[0012] Furthermore, a sampling tube is also provided on the side wall of the settling tank, and the pipe opening position of the sampling tube on the settling tank is lower than the pipe opening position of the production line oil inlet pipe on the settling tank.

[0013] The beneficial effect of the above technical features in this application is: the state of the mixed liquid in the tank can be detected by using a sampling tube, and when a certain concentration is reached, corresponding treatment can be carried out, such as transporting it to the lubricating oil treatment system for treatment, or unloading the residue at the bottom.

[0014] Furthermore, the second settling tank is a conical tank; a sixth discharge pipe is arranged at the bottom of the second settling tank; and a seventh discharge pipe is arranged at the lower part of the side wall of the second settling tank.

[0015] The beneficial effects of the above technical features in the present application are: the water-slag layer at the bottom of the sedimentation tank is introduced into the second sedimentation tank, and part of the raw materials will be carried in the water-slag layer, and the water-slag separation is carried out in the second sedimentation tank, and the oil in the upper layer is pumped into the sedimentation tank for mixing treatment; the water-slag mixed liquid separated from the bottom can recover the separated pharmaceutical aqueous solution, or introduce it into the pharmaceutical tank for reuse.

[0016] Furthermore, a heating coil is provided at the bottom of the raw material tank.

[0017] The beneficial effect of the above technical features in the present application is: the oil entering the raw material tank through the oil inlet pipe is heated by the heating coil, so that its medium density changes, making it more suitable for upper and lower layer separation.

[0018] Furthermore, a transfer tank, a horizontal spiral centrifuge, an evaporation tank, a cooling tank and a collection tank are added to the dehydration and slag removal system; the second sedimentation tank is connected to the transfer tank through the sixth discharge pipe, the transfer tank is connected to the horizontal spiral centrifuge through a pipeline, the eighth discharge pipe for discharging liquid from the horizontal spiral centrifuge is connected to the evaporation tank, and the ninth discharge pipe for discharging slag from the horizontal spiral centrifuge transfers the slag to the hazardous waste storage for treatment; the tenth discharge pipe on the top of the evaporation tank is connected to the cooling tank, and the eleventh discharge pipe of the cooling tank is connected to the collection tank, and the collection tank can be collected uniformly or connected to the reagent tank through the twelfth discharge pipe.

[0019] The advantages of the above technical features in the present application are: the slag-water mixture at the bottom of the second sedimentation tank is transferred to the transfer tank for temporary storage through a pipeline, the slag-water mixture temporarily stored in the transfer tank is transported to the horizontal spiral centrifuge through the seventh discharge pipe, and after centrifugal separation, the mixed liquid of the agent and water is transported to the evaporation tank, and after evaporation treatment in the evaporation tank, the agent therein enters the cooling tank from the top along with the steam, is cooled and recovered, or is sent to the agent tank through the twelfth discharge pipe for continued use; the slag separated by the horizontal spiral centrifuge is sent to the hazardous waste storage for treatment through the ninth discharge pipe.

[0020] The beneficial effects of this application are:

[0021] By refining the treatment before the lubricating oil regeneration process, impurities in the lubricating oil are removed before entering the formal treatment, and the static mixer set in the system is used to improve the mixing effect of the raw oil and the reagent to remove impurities in the raw material;

[0022] Through the system designed in the present application, the medicines flowing into the system can be recovered and recycled, thereby increasing the utilization rate of the medicines and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a flow chart of a dehydration and slag removal system before lubricating oil regeneration involved in this application;

[0024] Figure 2 Flowchart of the system designed for Example 2 in this application.

[0025] The reference numerals are recorded as follows: 1. raw material tank; 2. sedimentation tank; 3. second sedimentation tank; 4. reagent tank; 5. gear pump; 6. dosing pump; 7. static mixer; 8. transfer tank; 9. horizontal spiral centrifuge; 10. evaporation tank; 11. cooling tank; 12. collection tank;

[0026] 101, oil inlet pipe; 102, first discharge pipe; 103, second discharge pipe; 104, third discharge pipe; 105, production line oil inlet pipe; 106, fifth discharge pipe; 107, fourth discharge pipe; 108, bottom discharge pipe; 109, sixth discharge pipe; 1010, seventh discharge pipe; 1011, pipeline; 1012, eighth discharge pipe; 1013, ninth discharge pipe; 1014, tenth discharge pipe; 1015, eleventh discharge pipe; 1016, twelfth discharge pipe; 1017, thirteenth discharge pipe;

[0027] 21. Stirring device; 22. Sampling port. DETAILED DESCRIPTION

[0028] The following embodiments, in conjunction with the accompanying drawings, are only intended to illustrate the technical solutions described in the claims and are not intended to limit the protection scope of the claims.

[0029] Combined with Figure 1 , a dehydration and slag removal system before lubricating oil regeneration, comprising a raw material tank 1 and a sedimentation tank 2; the raw material tank 1 is connected to a gear pump 5 through a first discharge pipe 102, the gear pump 5 is connected to a static mixer 7 through a second discharge pipe 103, the static mixer 7 is connected to a sedimentation tank 2 through a third discharge pipe connection 104, and the sedimentation tank 2 is connected to a second sedimentation tank 3 through a bottom discharge pipe 108; a bypass dosing system is arranged on the second discharge pipe 103; the bypass dosing system comprises a medicine tank 4, the medicine tank 4 is connected to a dosing pump 6 through a fourth discharge pipe 107, and the dosing pump 6 is connected to the second discharge pipe 103 through a fifth discharge pipe 106;

[0030] Among them, a stirring device 21 is installed on the side wall of the settling tank 2, and the stirring device 21 includes a stirring motor and a stirring blade. The stirring blade is installed inside the settling tank 2, and the stirring motor is installed on the outer wall of the settling tank 2; a sampling tube 22 is also provided on the side wall of the settling tank 2, and the pipe opening position of the sampling tube 22 on the settling tank 2 is lower than the pipe opening position of the production line oil inlet pipe 105 on the settling tank 2;

[0031] The second settling tank 3 is a conical tank; a sixth discharge pipe 109 is arranged at the bottom of the second settling tank 3, and the oak water mixture in the second settling tank is discharged from the sixth discharge pipe; a seventh discharge pipe 1010 is arranged at the lower part of the side wall of the second settling tank 3, and the seventh discharge pipe is used to separate the oil body in the tank body.

[0032] A heating coil is disposed at the bottom of the raw material tank 1 , and an oil inlet pipe 101 is disposed at the raw material tank 1 .

[0033] Example 2

[0034] Based on Example 1, Figure 2 , a transfer tank 8, a horizontal spiral centrifuge 9, an evaporation tank 10, a cooling tank 11 and a collection tank 12 are further added to the dehydration and slag removal system; the second sedimentation tank 3 is connected to the transfer tank 8 through the sixth discharge pipe 109, the transfer tank 8 is connected to the horizontal spiral centrifuge 9 through the pipeline 1011, the eighth discharge pipe 1012 for discharging liquid from the horizontal spiral centrifuge 9 is connected to the evaporation tank 10, and the ninth discharge pipe 1013 for discharging slag from the horizontal spiral centrifuge 9 transfers the slag to the hazardous waste storage for treatment; the tenth discharge pipe 1014 at the top of the evaporation tank 10 is connected to the cooling tank 11, and the eleventh discharge pipe 1015 of the cooling tank 11 is connected to the collection tank 12, and the collection tank 12 can be collected uniformly or connected to the reagent tank 4 through the twelfth discharge pipe 1016; the thirteenth discharge pipe 1017 at the bottom of the evaporation tank 10 can discharge water with almost no reagent after evaporation. In this system, in order to increase the fluidity of the oil in the system, the raw material tank 1, the settling tank 2, and the second settling tank 3 are all designed with a coil structure for heating, and the evaporation tank 10 also has a coil for evaporation.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dehydration and slag removal system before lubricating oil regeneration, comprising a raw material tank (1) and a sedimentation tank (2); characterized in that: The raw material tank (1) is connected to the gear pump (5) via a first discharge pipe (102), the gear pump (5) is connected to the static mixer (7) via a second discharge pipe (103), the static mixer (7) is connected to the settling tank (2) via a third discharge pipe connection (104), the settling tank (2) is connected to the second settling tank (3) via a bottom discharge pipe (108); a bypass dosing system is provided on the second discharge pipe (103).

2. The dehydration and slag removal system before lubricating oil regeneration according to claim 1, characterized in that: The bypass dosing system comprises a medicine tank (4), the medicine tank (4) is connected to a dosing pump (6) via a fourth discharge pipe (107), and the dosing pump (6) is connected to a second discharge pipe (103) via a fifth discharge pipe (106).

3. The dehydration and slag removal system before lubricating oil regeneration according to claim 2, characterized in that: The dosing pump (6) is a plunger pump.

4. The dehydration and slag removal system before lubricating oil regeneration according to claim 1, characterized in that: A stirring device (21) is installed on the side wall of the settling tank (2), the stirring device (21) comprising a stirring motor and a stirring blade, the stirring blade is installed inside the settling tank (2), and the stirring motor is installed on the outer side wall of the settling tank (2).

5. The dehydration and slag removal system before lubricating oil regeneration according to claim 4, characterized in that: A sampling tube (22) is also provided on the side wall of the settling tank (2), and the position of the tube opening of the sampling tube (22) on the settling tank (2) is lower than the position of the tube opening of the production line oil inlet pipe (105) on the settling tank (2).

6. The dehydration and slag removal system before lubricating oil regeneration according to claim 1, characterized in that: The second sedimentation tank (3) is a conical tank; a sixth discharge pipe (109) is provided at the bottom of the second sedimentation tank (3); and a seventh discharge pipe (1010) is provided at the lower part of the side wall of the second sedimentation tank (3).

7. The dehydration and slag removal system before lubricating oil regeneration according to claim 1, characterized in that: A heating coil is provided at the bottom of the raw material tank (1).

8. The dehydration and slag removal system before lubricating oil regeneration according to claim 1, characterized in that: The dehydration and slag removal system further comprises a transfer tank (8), a horizontal spiral centrifuge (9), an evaporation tank (10), a cooling tank (11) and a collection tank (12); the second sedimentation tank (3) is connected to the transfer tank (8) via a sixth discharge pipe (109); the transfer tank (8) is connected to the horizontal spiral centrifuge (9) via a pipeline (1011); an eighth discharge pipe (1012) for discharging liquid from the horizontal spiral centrifuge (9) is connected to the evaporation tank (10); a ninth discharge pipe (1013) for discharging slag from the horizontal spiral centrifuge (9) transfers the slag to a hazardous waste storage for treatment; a tenth discharge pipe (1014) at the top of the evaporation tank (10) is connected to the cooling tank (11); an eleventh discharge pipe (1015) of the cooling tank (11) is connected to the collection tank (12); the collection tank (12) can collect the liquid in a unified manner or be connected to the reagent tank (4) via a twelfth discharge pipe (1016).

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