Vacuum steam stripping deodorization device for regenerated lubricant base oil

Abstract

The utility model relates to a regenerated lubricating oil base oil vacuum steam stripping deodorization device, which comprises a steam stripping tower, a liquid inlet pipe, a gas inlet pipe, a liquid discharge pipe, an exhaust pipe and a vacuum pump, the steam stripping tower consists of an upper tower body, a lower tower body and a middle tower body, the liquid inlet pipe is communicated with the side part of the upper tower body, the gas inlet pipe is communicated with the side part of the lower tower body, and the liquid discharge pipe is communicated with the bottom of the lower tower body; the middle tower body comprises a plurality of horizontal packing cylinders which are distributed up and down, the bottom of the upper tower body is communicated with the top side of the packing cylinder on the uppermost layer, the top of the lower tower body is communicated with the bottom side of the packing cylinder on the lowermost layer, and every two adjacent packing cylinders are communicated through a conveying tower body; one end of the filler cylinder is open and provided with a flange, a cover plate is detachably arranged on the side, away from the filler cylinder, of the flange, a net cylinder is rotationally arranged on the cover plate, and the net cylinder extends into the filler cylinder and is filled with filler. According to the utility model, the full contact between a gas phase and a liquid phase can be realized, the filler can be quickly replaced, and the device is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of deodorization, and in particular relates to a vacuum stripping deodorization device for regenerated lubricating oil base oil. Background Art

[0002] At present, after the refining treatment of the recycled lubricating base oil, there are often still some acidic substances, organic solvents, and residues of decomposed additives in the oil products, which make the oil products emit an unpleasant irritating odor, and also directly affect the quality of the oil products. Therefore, at this stage, most of the refined oil products are further treated by vacuum stripping and other means to remove the trace impurities remaining in the oil products and eliminate their odor. During the vacuum stripping deodorization, the oil products heated to a suitable temperature enter from the top of the stripping tower and flow from top to bottom, and meet and contact with the water vapor entering from the bottom of the stripping tower and flowing from bottom to top at the filler, so that the trace impurities in the oil products are diffused and transferred to the water vapor, and the gas phase is used to take away the impurities in the liquid phase of the oil products, so as to achieve the purification and deodorization of the corresponding oil products. However, in actual use, the existing packed stripping tower has problems such as uneven liquid distribution and packing blockage. The uneven distribution of the liquid phase cannot fully contact with the gas phase, which reduces the deodorization quality of the oil products. After the packing is blocked, it is impossible to quickly disassemble and replace the packing as a whole, which is not conducive to the rapid development of subsequent deodorization operations and reduces the overall work efficiency. This needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a vacuum stripping and deodorizing device for regenerated lubricating oil base oil, which can achieve full contact between gas phase and liquid phase and can quickly replace fillers to solve the above problems.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a vacuum stripping and deodorizing device for regenerated lubricating oil base oil, comprising a stripping tower, a liquid inlet pipe, an air inlet pipe, a liquid discharge pipe, an exhaust pipe and a vacuum pump, wherein the stripping tower is composed of an upper tower body, a lower tower body and a middle tower body, wherein the liquid inlet pipe is communicated with the side of the upper tower body, the air inlet pipe is communicated with the side of the lower tower body, the liquid discharge pipe is communicated with the bottom of the lower tower body, the exhaust pipe and the air suction port of the vacuum pump are both communicated with the top of the upper tower body, the middle tower body comprises a plurality of horizontal packing cylinders distributed up and down, the bottom of the upper tower body is communicated with the top side of the packing cylinder of the uppermost layer, the top of the lower tower body is communicated with the bottom side of the packing cylinder of the lowermost layer, and the adjacent packing cylinders are communicated through a conveying tower body, one end of the packing cylinder is open and a flange is provided at the end, and four groups of first motors uniformly spaced at circumferential intervals and four groups of support seats uniformly spaced at circumferential intervals are fixedly provided on one side of the flange close to the packing cylinder, the first motor corresponds to the support seat one by one and is located at one side of the support seat close to the packing cylinder On the side, a rotating shaft is penetrated and rotatably provided on the support seat, one end of the rotating shaft is coaxially fixedly connected with the output end of the corresponding first motor, and the other end is coaxially fixedly connected with a screw, a nut is threadedly sleeved on the screw, the side of the nut close to the flange is slidably connected with the flange, and the other side is fixedly connected with a limiting plate, a plurality of limiting rods distributed in a rectangular array are fixedly provided on the side of the limiting plate away from the first motor, a through groove is provided on the flange of the side of the screw away from the corresponding first motor, a cover plate is abutted on the side of the flange away from the filling tube, a plurality of plug-ins corresponding to the through grooves and inserted through the corresponding through grooves are fixed on the side of the cover plate close to the flange, the limiting plate abuts on the corresponding plug-in plate, a through hole is provided on the plug-in plate corresponding to the limiting rod, and the limiting rod is inserted through the corresponding through hole, a second motor is fixedly mounted on the center of the side of the cover plate away from the flange, the output shaft of the second motor passes through the cover plate and is coaxially fixedly connected with a net cylinder, the net cylinder extends into the filling tube and is filled with fillers.

[0005] Preferably, both the liquid inlet pipe and the air inlet pipe are provided with flow regulating valves.

[0006] Preferably, gate valves are provided on both the liquid discharge pipe and the exhaust pipe.

[0007] Preferably, the insert plate is matched with the corresponding through slot.

[0008] Preferably, the limiting rod is matched with the corresponding through hole.

[0009] Preferably, a sliding block is fixedly provided on one side of the nut close to the flange, a matching sliding groove is provided on the flange side corresponding to the sliding block, and the sliding block is slidably arranged in the corresponding sliding groove.

[0010] Preferably, a U-shaped handle is fixedly provided on a side of the cover plate away from the filling cylinder.

[0011] The utility model has the following beneficial effects: when in use, the stripping tower is first vacuumed by a vacuum pump. Then, the regenerated lubricating oil base oil to be stripped and deodorized is input into the stripping tower through the liquid inlet pipe, so that the oil flows from top to bottom, and water vapor is input into the stripping tower through the air inlet pipe, so that the water vapor flows from bottom to top. The oil and water vapor meet and contact at the packing in the packing tube of each layer, so that the trace impurities in the oil are diffused and transferred to the water vapor, and the gas phase is used to take away the impurities in the liquid phase of the oil, so as to achieve the purification and deodorization of the corresponding oil. Afterwards, the deodorized oil can be discharged through the drain pipe, and the tail gas is discharged through the exhaust pipe. During the process, driven by the second motor, the mesh cylinder filled with fillers in each layer of the filler cylinder rotates as a whole, so that the oil and water vapor flowing through can be effectively stirred and mixed, so that the two can be more evenly diffused to all parts of the filler for contact and mixing. The overall rotation of the mesh cylinder can also make the water vapor flowing through swirl, which can effectively prolong the time for the water vapor to pass through the mesh cylinder, so that it is more conducive to its full contact with the oil, and can greatly enhance the effect and quality of steam stripping deodorization;

[0012] When the packing needs to be replaced due to problems such as clogging, it is only necessary to operate the first motor in the shutdown state to drive the rotating shaft and the screw to rotate, and under the arrangement of the nut being threaded with the screw and slidingly connected with the flange, the nut and the limit plate are synchronously moved toward the direction of the packing tube until the limit rod is withdrawn from the corresponding through hole, and the plug-in limit of the plug plate can be released, and then the cover plate is controlled to be away from the flange, the plug plate is pulled out of the corresponding through slot and the net tube is moved out of the packing tube, and the original cover plate can be removed. Next, take another cover plate with a net tube filled with intact packing, first extend its net tube into the packing tube, until the corresponding cover plate is pressed against the corresponding flange, and align the corresponding plug plate with the corresponding through slot and plug it into place. Then, the first motor is operated again to drive the rotating shaft and the screw to rotate in the opposite direction, so that the corresponding nut and the limit plate are synchronously moved in the direction away from the packing tube until the limit plate is pressed against the corresponding plug plate. At this time, the limit rod can be inserted into the corresponding through hole, so that the plug plate is inserted and limited, and the fixed installation of the new cover plate is completed, and the installation is stable and does not affect the subsequent use. In this way, the packing can be disassembled and replaced as a whole, flexibly and quickly, and the operation is simple and convenient, which is more conducive to the rapid development of subsequent stripping operations, thereby ensuring the overall work efficiency and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a main structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the packing tube of the utility model;

[0015] Figure 3 It is a left-side structural schematic diagram of the packing cylinder of the utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the cover plate and the net tube of the utility model;

[0017] Figure 5 It is a left-side structural schematic diagram of the cover plate and the net cylinder of the utility model;

[0018] Figure 6 It is a schematic diagram of the main structure when the packing cylinder and the cover plate of the utility model are connected.

[0019] Numbers in the figure: 1 is a liquid inlet pipe, 2 is an air inlet pipe, 3 is a liquid discharge pipe, 4 is an exhaust pipe, 5 is a vacuum pump, 6 is an upper tower body, 7 is a lower tower body, 8 is a middle tower body, 9 is a filling tube, 10 is a conveying tower body, 11 is a flange, 12 is a first motor, 13 is a support seat, 14 is a rotating shaft, 15 is a screw, 16 is a nut, 17 is a limit plate, 18 is a limit rod, 19 is a through groove, 20 is a cover plate, 21 is a plug plate, 22 is a through hole, 23 is a second motor, 24 is a mesh tube, 25 is a filler, 26 is a flow regulating valve, 27 is a gate valve, 28 is a slider, 29 is a slide groove, and 30 is a handle. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0021] like Figures 1 to 6As shown, a vacuum stripping and deodorizing device for regenerated lubricating oil base oil comprises a stripping tower, a liquid inlet pipe 1, an air inlet pipe 2, a liquid discharge pipe 3, an exhaust pipe 4 and a vacuum pump 5. The stripping tower is composed of an upper tower body 6, a lower tower body 7 and a middle tower body 8. The liquid inlet pipe 1 is connected to the side of the upper tower body 6, the air inlet pipe 2 is connected to the side of the lower tower body 7, the liquid discharge pipe 3 is connected to the bottom of the lower tower body 7, and the exhaust pipe 4 and the air suction port of the vacuum pump 5 are both connected to the top of the upper tower body 6. The middle tower body 8 comprises a plurality of horizontal packing cylinders 9 distributed up and down, the bottom of the upper tower body 6 is connected to the top side of the uppermost packing cylinder 9, the top of the lower tower body 7 is connected to the bottom side of the lowermost packing cylinder 9, and two adjacent packing cylinders 9 are connected through a conveying tower body 10. One end of the packing tube 9 is open and provided with a flange 11. Four groups of first motors 12 and four groups of support seats 13 are evenly spaced at circumferential intervals, which are fixed on the side of the flange 11 close to the packing tube 9. The first motors 12 correspond to the support seats 13 one by one and are located on the side of the support seats 13 close to the packing tube 9. A rotating shaft 14 is passed through and rotated on the support seat 13. One end of the rotating shaft 14 is coaxially fixedly connected with the output end of the corresponding first motor 12, and the other end is coaxially fixedly connected with a screw 15. A nut 16 is threadedly sleeved on the screw 15. The nut 16 is slidably connected with the flange 11 on one side close to the flange 11, and is fixedly connected with a limiting plate 17 on the other side. A plurality of limiting rods 18 distributed in a rectangular array are fixed on the side of the limiting plate 17 away from the first motor 12. A through groove 19 is provided on the flange 11 on the side of the screw 18 away from the corresponding first motor 12. The side of the flange 11 away from the stuffing tube 9 is abutted with a cover plate 20, and the side of the cover plate 20 close to the flange 11 is fixed with a plurality of plug-in plates 21 corresponding to the through slots 19 and inserted through the corresponding through slots 19. The limit plate 17 abuts against the corresponding plug-in plates 21, and the plug-in plates 21 corresponding to the limit rod 18 are provided with through holes 22, and the limit rod 18 is inserted through the corresponding through holes 22. A second motor 23 is fixedly mounted at the center of the side of the cover plate 20 away from the flange 11, and the output shaft of the second motor 23 penetrates the cover plate 20 and is coaxially fixedly connected with a net tube 24, which extends into the stuffing tube 9 and is filled with stuffing 25;

[0022] When in use, the stripping tower is first evacuated by a vacuum pump 5. Then, the regenerated lubricating base oil to be stripped and deodorized is input into the stripping tower through the liquid inlet pipe 1, so that the oil flows from top to bottom, and water vapor is input into the stripping tower through the air inlet pipe 2, so that the water vapor flows from bottom to top. The oil and water vapor meet and contact at the fillers 25 in the packing tubes 9 of each layer, so that the trace impurities in the oil are diffused and transferred to the water vapor, and the gas phase is used to take away the impurities in the liquid phase of the oil, so as to achieve the purification and deodorization of the corresponding oil. Afterwards, the deodorized oil can be discharged through the drain pipe 3, and the tail gas is discharged through the exhaust pipe 4. During the process, driven by the second motor 23, the mesh cylinder 24 filled with the filler 25 in each layer of the filler cylinder 9 rotates as a whole, so that the oil and water vapor flowing through can be effectively stirred and mixed, so that the two can be more evenly diffused to all parts of the filler 25 for contact and mixing. The overall rotation of the mesh cylinder 24 can also make the water vapor flowing through swirl, which can effectively prolong the time for the water vapor to pass through the mesh cylinder 24, so that it is more conducive to its full contact with the oil, and can greatly enhance the effect and quality of steam stripping deodorization.

[0023] When the packing 25 is blocked and needs to be replaced, it is only necessary to operate the first motor 12 in the shutdown state to drive the rotating shaft 14 and the screw rod 15 to rotate, and under the arrangement of the nut 16 being screwed with the screw rod 15 and slidingly connected with the flange 11, the nut 16 and the limit plate 17 are synchronously moved toward the direction of the packing tube 9 until the limit rod 18 is withdrawn from the corresponding through hole 22, and the plug-in limit of the plug plate 21 can be released, and then the cover plate 20 is controlled to be away from the flange 11, and the plug plate 21 is pulled out from the corresponding through slot 19 and the net tube 24 is moved out of the packing tube 9, and the original cover plate 20 can be removed. Next, take another cover plate 20 with a net tube 24 filled with intact packing 25, first extend its net tube 24 into the packing tube 9, until the corresponding cover plate 20 is pressed against the corresponding flange 11, and the corresponding plug plate 21 is aligned with the corresponding through slot 19 and plugged in place. Then, the first motor 12 is operated again to drive the rotating shaft 14 and the screw 15 to rotate in the opposite direction, so that the corresponding nut 16 and the limit plate 17 are synchronously moved in the direction away from the packing tube 9, until the limit plate 17 is pressed against the corresponding plug plate 21, and the limit rod 18 can be inserted into the corresponding through hole 22 at this time, so that the plug plate 21 is inserted and limited, that is, the fixed installation of the new cover plate 20 is completed, and the installation is stable and does not affect the subsequent use. In this way, the packing 25 can be disassembled and replaced as a whole, flexibly and quickly, and the operation is simple and convenient, which is more conducive to the rapid development of the subsequent stripping operation, thereby ensuring the overall work efficiency and being more practical.

[0024] In this embodiment, both the liquid inlet pipe 1 and the gas inlet pipe 2 are provided with flow regulating valves 26 to adjust and control the input flow of the liquid phase and the gas phase according to actual conditions.

[0025] In this embodiment, gate valves 27 are provided on the liquid discharge pipe 3 and the gas discharge pipe 4 to facilitate the control of liquid discharge and gas discharge after stripping.

[0026] In this embodiment, the plug board 21 is matched with the corresponding through slot 19 to ensure that the plug board 21 is smoothly plugged into place.

[0027] In this embodiment, the limiting rod 18 is matched with the corresponding through hole 22 to ensure that the limiting rod 18 is smoothly inserted into place.

[0028] In this embodiment, a slider 28 is fixedly provided on the side of the nut 16 close to the flange 11, and a corresponding slide groove 29 is opened on the side of the flange 11 corresponding to the slider 28. The slider 28 is slidably arranged in the corresponding slide groove 29 to effectively guide and limit the movement of the nut 16, so as to facilitate the conversion of the rotation of the screw 15 into the overall movement of the nut 16 and the limiting plate 17.

[0029] In this embodiment, a U-shaped handle 30 is fixedly provided on the side of the cover plate 20 away from the filling tube 9, so as to facilitate the control of the disassembly, assembly and transfer of the cover plate 20 as a whole and reduce the difficulty of operation.

[0030] 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 vacuum stripping and deodorizing device for regenerated lubricating oil base oil, comprising a stripping tower, a liquid inlet pipe, an air inlet pipe, a liquid discharge pipe, an exhaust pipe and a vacuum pump, characterized in that: The stripping tower is composed of an upper tower body, a lower tower body and a middle tower body, the liquid inlet pipe is connected to the side of the upper tower body, the air inlet pipe is connected to the side of the lower tower body, the liquid discharge pipe is connected to the bottom of the lower tower body, the exhaust pipe and the air suction port of the vacuum pump are both connected to the top of the upper tower body, the middle tower body includes a plurality of horizontal packing cylinders distributed up and down, the bottom of the upper tower body is connected to the top side of the uppermost packing cylinder, the top of the lower tower body is connected to the bottom side of the lowermost packing cylinder, and two adjacent packing cylinders are connected through a conveying tower body, one end of the packing cylinder is open and provided with a flange, four groups of first motors uniformly spaced at circumferential intervals and four groups of support seats uniformly spaced at circumferential intervals are fixed on a side of the flange close to the packing cylinder, the first motor corresponds to the support seat one by one and is located on a side of the support seat close to the packing cylinder, a rotating shaft is passed through and rotatably provided on the support seat, one end of the rotating shaft is connected to the corresponding first motor The output end is coaxially fixedly connected, and the other end is coaxially fixedly connected with a screw, a nut is threadedly sleeved on the screw, the nut is slidably connected to the flange on one side close to the flange, and is fixedly connected to a limit plate on the other side, a plurality of limit rods distributed in a rectangular array are fixedly arranged on the side of the limit plate away from the first motor, a through groove is provided on the flange on the side of the screw away from the corresponding first motor, a cover plate is abutted on the side of the flange away from the filling cylinder, a plurality of plug-ins corresponding to the through grooves and inserted through the corresponding through grooves are fixed on the side of the cover plate close to the flange, the limit plate abuts on the corresponding plug-in plate, a through hole is provided on the plug-in plate corresponding to the limit rod, and the limit rod is inserted through the corresponding through hole, a second motor is fixedly mounted at the center of the cover plate away from the flange, the output shaft of the second motor passes through the cover plate and is coaxially fixedly connected with a net cylinder, the net cylinder extends into the filling cylinder and is filled with fillers.

2. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: The liquid inlet pipe and the air inlet pipe are both provided with flow regulating valves.

3. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: The liquid discharge pipe and the exhaust pipe are both provided with gate valves.

4. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: The inserting plate is matched with the corresponding through slot.

5. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: The limiting rod is matched with the corresponding through hole.

6. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: A sliding block is fixedly arranged on one side of the nut close to the flange, and a matching sliding groove is opened on the flange side corresponding to the sliding block, and the sliding block is slidably arranged in the corresponding sliding groove.

7. The vacuum stripping and deodorizing device for regenerated lubricating oil base oil according to claim 1, characterized in that: A U-shaped handle is fixedly arranged on one side of the cover plate away from the filling cylinder.

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