Solvent recycling device for lubricant base oil production

Abstract

The utility model provides a solvent recycling device for lubricating oil base oil production, which is applied to the technical field of lubricating oil base oil production. The device comprises a box body, the top end of the box body is covered with a box cover, a rotating shaft rotatably penetrates through the axis of the box cover, a gear is clamped to the outer wall, located at the top end of the box cover, of the rotating shaft, and the top end of the rotating shaft is in threaded connection with a limiting block; when an acidic or alkaline precipitant is added, the air cylinder drives the rack to move back and forth to drive the gear to rotate, so that the gear drives the rotating shaft to rotate, and the precipitant and a waste solvent are fully mixed by the stirring rods on the outer wall of the rotating shaft; the effect of precipitating and separating impurities is achieved. In this way, the precipitation separation effect of the solvent recycling device for lubricating oil base oil production can be improved.

Description

Technical Field

[0001] The utility model relates to the field of lubricating oil base oil production, in particular to a solvent recovery and utilization device for lubricating oil base oil production. Background Art

[0002] Lubricant base oil is the main component of lubricant oil, usually refined or synthesized from petroleum, and is used to provide the main lubricating properties of lubricant oil. There are many types of lubricant base oils, the most common ones are mineral oil, synthetic oil and vegetable oil. The quality and performance of lubricant base oil will directly affect the use effect and service life of lubricant oil. Lubricant base oil usually contains various additives to improve the performance of lubricant oil, such as antioxidants, anti-wear agents, anti-corrosion agents, etc.

[0003] In the production process of lubricating oil base oil, solvent recovery is carried out because solvents can be used to dissolve and extract different components in oil products during the production process, thereby achieving the purpose of separation and purification. Solvent recovery can help improve production efficiency and product quality. By recovering solvents, waste liquid discharge can be reduced, and solvent loss in the production process can be reduced, thereby improving the utilization rate of production equipment and reducing production costs. In addition, solvent recovery can also help improve the level of environmental management in the production process, meet environmental protection requirements, and ensure sustainable development of production. Therefore, solvent recovery is a very important link in the production of lubricating oil base oil.

[0004] At present, when the existing solvent recovery and utilization devices are recovering solvents, they usually need to pre-treat the collected waste solvents, including filtering, precipitation or other solid-liquid separation methods to remove solid particles or impurities therein. In this process, chemical methods are required for separation. However, the existing devices directly pour acidic or alkaline precipitants into the device for precipitation separation. This method will prevent the solvent from being fully mixed with the waste solvent, affecting the effect of precipitation separation. Therefore, there is an urgent need for a solvent recovery and utilization device for lubricating base oil production with good precipitation separation effect. Utility Model Content

[0005] The utility model aims to provide a solvent recovery and utilization device for lubricating base oil production in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A solvent recovery and utilization device for lubricating base oil production comprises: a box body, a box cover is closed on the top end of the box body, a rotating shaft rotatably penetrates the axis of the box cover, a gear is clamped on the outer wall of the rotating shaft located at the top end of the box cover, and a limit block is threadedly connected to the top end, a rack is meshed on the outer wall of the gear, one end of the rack is connected to the output end of a cylinder, the cylinder is detachably mounted on the side end of the box body, and a plurality of groups of stirring rods are fixedly mounted on the outer wall of the rotating shaft located inside the box body.

[0008] Furthermore: a limit frame is fixedly installed on the inner wall of the box, a filter screen is placed on the top of the limit frame, and clamping plates are fixedly installed on both ends of the top surface of the filter screen. The clamping plates are L-shaped and clamped to the top surface of the box.

[0009] Furthermore: both ends of the box cover are provided with card slots that fit with the card plate.

[0010] Furthermore: a through hole for the shaft to rotate is opened at the axis center of the filter.

[0011] Furthermore: the detachable connection is a bolt connection, and the length between the cylinder output end and the rack is greater than the length of the box cover.

[0012] Furthermore: the stirring rods are evenly arranged linearly and fixedly mounted on the outer wall of the rotating shaft and are located below the filter screen.

[0013] Compared with the prior art, the beneficial effect of the utility model is that when an acidic or alkaline precipitant is added, the cylinder drives the rack to move back and forth to drive the gear to rotate, thereby driving the gear to drive the rotating shaft to rotate, and the stirring rod on the outer wall of the rotating shaft fully mixes the precipitant and the waste solvent to achieve the effect of precipitating and separating impurities. At the same time, a filter screen is arranged inside the box body, which can also pre-treat the waste solvent before impurity separation, and separate larger impurity particles into solid-liquid. The detachable filter screen is convenient for cleaning larger impurity particles to avoid clogging the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a solvent recovery and utilization device for lubricating base oil production according to the utility model is shown;

[0016] Figure 2A schematic front view and cross-sectional view of a solvent recovery and utilization device for lubricating base oil production according to the utility model is shown;

[0017] Figure 3 A schematic cross-sectional view from above of a solvent recovery and utilization device for lubricating base oil production according to the utility model is shown;

[0018] Figure 4 The utility model shows a three-dimensional schematic diagram of the internal structure of a solvent recovery and utilization device for lubricating oil base oil production.

[0019] The following are the descriptions of the reference numerals:

[0020] 1. Box body; 2. Box cover; 3. Rotating shaft; 4. Gear; 5. Rack; 6. Cylinder; 7. Stirring rod; 8. Limiting frame; 9. Filter; 10. Pallet. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 4As shown, a solvent recovery and utilization device for lubricating base oil production comprises: a box body 1, a box cover 2 is closed at the top end of the box body 1, a rotating shaft 3 is rotatably penetrated at the axis of the box cover 2, a gear 4 is clamped on the outer wall of the rotating shaft 3 located at the top end of the box cover 2, and the top end is threadedly connected to a limit block, a rack 5 is meshed on the outer wall of the gear 4, one end of the rack 5 is connected to the output end of a cylinder 6, and the cylinder 6 is detachably installed at the side end of the box body 1, and a plurality of groups of stirring rods 7 are fixedly installed on the outer wall of the rotating shaft 3 located inside the box body 1, when an acidic or alkaline precipitant is added, the cylinder 6 drives the rack 5 to move back and forth to drive the gear 4 to rotate, so that the gear 4 drives the rotating shaft 3 to rotate, and the stirring rods 7 on the outer wall of the rotating shaft 3 fully mix the precipitant and the waste solvent to achieve the effect of precipitating and separating impurities, and at the same time, a filter screen 9 is arranged inside the box body 1, which can also pre-treat the waste solvent before impurity separation, and separate larger impurity particles into solid and liquid, and the detachable filter screen 9 is convenient for cleaning larger impurity particles to avoid clogging the filter screen 9.

[0025] In some embodiments, a limit frame 8 is fixedly installed on the inner wall of the box body 1 for supporting the filter screen 9. The filter screen 9 can be placed on the limit frame 8. At the same time, L-shaped card plates 10 are fixedly provided at both ends of the top surface of the filter screen 9 for easy subsequent removal. Card slots that fit with the card plates 10 are provided at both ends of the box cover 2. When the box cover 2 is closed, the box cover 2 can avoid being interfered by the card plates 10, which may cause the box cover 2 to be unable to be closed.

[0026] In some embodiments, a through hole for the rotating shaft 3 to rotate is provided at the axis of the filter screen 9, so that the gear 4 can drive the stirring rod 7 on the outer wall of the rotating shaft 3 to rotate inside the box 1 to stir the acidic or alkaline precipitant and the waste solvent.

[0027] In some embodiments, the cylinder 6 is detachably connected to the side of the box body 1 through a fixed block at its bottom end. The cylinder 6 is fixedly connected to the fixed block at its bottom end, and the fixed block is fastened to the side of the box body 1 by bolts. This connection method is easy to disassemble and facilitates subsequent maintenance and adjustment of the cylinder 6. The length of the output end of the cylinder 6 and the rack 5 is set to be greater than the length of the box cover 2, so that the cylinder 6 can be extended and retracted back and forth, and has sufficient length to drive the stirring rod 7 inside the box body 1 to rotate back and forth to mix the solvent.

[0028] In some embodiments, the stirring rod 7 is disposed below the filter screen 9, so that the stirring can be performed after the filter screen 9 pre-treats the larger impurities, so that the introduced acidic or alkaline precipitant and the waste solvent can be fully mixed.

[0029] Working principle: When in use, the waste solvent is passed into the interior of the box 1, and the larger impurity particles in the waste solvent are pre-filtered under the action of the filter 9, and then the acidic or alkaline precipitant is passed into the interior of the box 1. At this time, the cylinder 6 is started to perform reciprocating telescopic motion, driving the rack 5 connected to the output end of the cylinder 6 to perform reciprocating linear motion. Since the rack 5 is meshed with the gear 4, the gear 4 rotates back and forth, so that the shaft 3 drives the stirring rod 7 fixedly connected to its outer wall to rotate inside the box 1, and the acidic or alkaline precipitant and the waste solvent are fully mixed to enhance the precipitation and separation effect. When disassembling the filter 9 for cleaning, the bolts at the bottom end of the cylinder 6 are disassembled, the cylinder 6 is removed, and then the limit block is separated from the shaft 3, the shaft 3 is separated from the gear 4, and then the box cover 2 is opened, and the filter 9 can be taken out from the inside of the box 1 through the card plate 10.

[0030] The cylinder, gear, rack and filter are all universal standard parts or are known through conventional experimental methods, so no further records are made here.

[0031] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements shall fall within the scope of the utility model to be protected.

Claims

1. A solvent recovery and utilization device for lubricating oil base oil production, characterized in that: include: A box body (1) is provided, wherein the top end of the box body (1) is covered with a box cover (2), a rotating shaft (3) is rotatably penetrated at the axis of the box cover (2), a gear (4) is clamped on the outer wall of the rotating shaft (3) located at the top end of the box cover (2), and a limit block is connected to the top end through a thread, a rack (5) is meshed on the outer wall of the gear (4), one end of the rack (5) is connected to the output end of a cylinder (6), and the cylinder (6) is detachably mounted on the side end of the box body (1), and a plurality of groups of stirring rods (7) are fixedly mounted on the outer wall of the rotating shaft (3) located inside the box body (1).

2. The solvent recovery and utilization device for lubricating base oil production according to claim 1, characterized in that: A limit frame (8) is fixedly mounted on the inner wall of the box body (1), a filter screen (9) is placed on the top of the limit frame (8), and clamping plates (10) are fixedly mounted on both ends of the top surface of the filter screen (9), the clamping plates (10) are L-shaped and clamped to the top surface of the box body (1).

3. The solvent recovery and utilization device for lubricating base oil production according to claim 2, characterized in that: Both ends of the box cover (2) are provided with card slots that fit with the card plate (10).

4. The solvent recovery and utilization device for lubricating base oil production according to claim 3, characterized in that: A through hole for the rotating shaft (3) to rotate is provided at the axis center of the filter screen (9).

5. The solvent recovery and utilization device for lubricating base oil production according to claim 1, characterized in that: The detachable connection is a bolt connection, and the length between the output end of the cylinder (6) and the rack (5) is greater than the length of the box cover (2).

6. The solvent recovery and utilization device for lubricating base oil production according to claim 1, characterized in that: The stirring rods (7) are evenly arranged linearly and fixedly mounted on the outer wall of the rotating shaft (3) and are located below the filter screen (9).

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