A device for the purification of waste lubricating oil

Abstract

The utility model discloses a kind of waste lubricating oil deflakes purification devices, it includes: hot bath cabinet, inorganic membrane filter, first elbow, second elbow and third elbow, the inorganic membrane filter is set in hot bath cabinet with external migration, the hot bath cabinet top circumferential interval is provided with first locating block, second locating block and third locating block, the inorganic membrane filter bottom is provided with concentrated liquid outlet, the first elbow is set in hot bath cabinet, and the bottom end of first elbow is connected with concentrated liquid outlet, the top of first elbow passes first locating block and extends to the outside of hot bath cabinet, heating is carried out to inorganic membrane filter using hot bath cabinet, improve the fluidity of waste lubricating oil, reduce viscous hardening phenomenon, deflakes purification efficiency is high, and maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of waste lubricating oil desolidification and purification technology, and in particular to a waste lubricating oil desolidification and purification device. Background Technology

[0002] To reduce pollution from waste lubricating oil, it is necessary to regenerate it. A key step in this process is solid-liquid separation to remove solid particles, especially metal powder, from the waste lubricating oil.

[0003] Solid-liquid separation of waste lubricating oil usually requires the use of filters, such as inorganic membrane filters, which adopt cross-flow filtration. Solid particles with a diameter larger than the pore size of the functional layer are trapped in the membrane tube, thereby achieving the purpose of solidification and purification of waste lubricating oil, and have high filtration accuracy.

[0004] Because solid particles and oil in waste lubricating oil easily form viscous caking in the filter, the oil removal efficiency is relatively low or even fails, which increases the difficulty of treating waste lubricating oil carrying fine solid particles and requires frequent maintenance, thus necessitating improvement. Utility Model Content

[0005] The purpose of this invention is to provide a waste lubricating oil desolidification and purification device, which reduces the phenomenon of viscous caking, improves the efficiency of desolidification and purification, and enhances the convenience of maintenance.

[0006] To achieve this objective, the present invention adopts the following technical solution: A waste lubricating oil desolidification and purification device includes: a hot bath, an inorganic membrane filter, a first bend, a second bend, and a third bend. The inorganic membrane filter is movably installed in the hot bath. A first positioning block, a second positioning block, and a third positioning block are circumferentially spaced on the top of the hot bath. A concentrate outlet is provided at the bottom of the inorganic membrane filter. The first bend is installed in the hot bath, and its bottom end is connected to the concentrate outlet. The top of the first bend extends through the first positioning block and outwards from the hot bath. A waste lubricating oil inlet is provided at the top of the inorganic membrane filter. The second bend is installed in the hot bath, and its bottom end is connected to the waste lubricating oil inlet. The top of the second bend extends through the second positioning block and outwards from the hot bath. A permeate outlet is provided on one side of the inorganic membrane filter. The third bend is installed in the hot bath, and its bottom end is connected to the permeate outlet. The top of the third bend extends through the third positioning block and outwards from the hot bath.

[0007] An electric heating rod extending into the hot bath is provided on one side of the hot bath box.

[0008] The hot bath box is equipped with a temperature control switch on its side, which is connected to the electric heating rod for heating control.

[0009] The heat transfer fluid is provided in the hot bath box to immerse the inorganic membrane filter.

[0010] The heat transfer fluid is either water or heat transfer oil.

[0011] The first, second, and third positioning blocks are provided with recessed grooves that extend radially along the hot bath box.

[0012] The first bend, the second bend, and the third bend are all made of stainless steel.

[0013] The first bend has a first pipe joint at its top end, the second bend has a second pipe joint at its top end, and the third bend has a third pipe joint at its top end.

[0014] The beneficial effects of this utility model are as follows: A waste lubricating oil desolidification and purification device places an inorganic membrane filter in a heat bath and heats it with a heat transfer fluid, which improves the fluidity of the waste lubricating oil in the inorganic membrane filter and reduces the viscous caking phenomenon. Moreover, the first bend, second bend, and third bend can also be heated by the heat transfer fluid, reducing the wall adhesion problem and flow resistance, further improving the fluidity of the waste lubricating oil, increasing the desolidification and purification efficiency of the waste lubricating oil, and the inorganic membrane filter can be quickly removed from the heat bath, improving the convenience of maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A schematic diagram of the inorganic membrane filter after it is separated from the hot bath. Detailed Implementation

[0016] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The waste lubricating oil desolidification and purification device shown includes: a heat bath 1, an inorganic membrane filter 2, a first bend 10, a second bend 9, and a third bend 15. The inorganic membrane filter 2 can be externally installed in the heat bath 1. Figure 2 As shown, the inorganic membrane filter 2 can be removed upwards and detached from the hot bath 1, making maintenance convenient.

[0018] A first positioning block 6, a second positioning block 7, and a third positioning block 5 are arranged circumferentially at intervals on the top of the hot bath box 1. The first positioning block 6, the second positioning block 7, and the third positioning block are welded and fixed to the top of the hot bath box 1, resulting in a stable structure.

[0019] like Figure 2 As shown, the first positioning block 6, the second positioning block 7 and the third positioning block 5 are provided with recessed grooves 17 extending radially along the hot bath box 1 to position the top of the first bend 10, the second bend 9 and the third bend 15, avoid torsion problems, improve the stability of the inorganic membrane filter 2 in the hot bath box 1, and do not affect the upward removal of the inorganic membrane filter 2.

[0020] In this embodiment, the inorganic membrane filter 2 is provided with a concentrate outlet 12 at the bottom. The first bend 10 is disposed in the hot bath 1, and the bottom end of the first bend 10 is connected to the concentrate outlet 12. The top of the first bend 10 extends outward from the hot bath 1 via the first positioning block 6. The top of the first bend 10 is positioned by the first positioning block 6 to avoid twisting problems.

[0021] like Figure 1 As shown, a waste lubricating oil inlet 11 is provided at the top of the inorganic membrane filter 2. The second bend 9 is provided in the hot bath box 1, and the bottom end of the second bend 9 is connected to the waste lubricating oil inlet 11. The top of the second bend 9 passes through the second positioning block 7 and extends to the outside of the hot bath box 1. The top of the second bend 9 is positioned by the second positioning block 7.

[0022] A permeate outlet 13 is provided on one side of the inorganic membrane filter 2. The third bend 15 is installed in the hot bath 1, and the bottom end of the third bend 15 is connected to the permeate outlet 13. The top of the third bend 15 extends outward from the hot bath 1 via the third positioning block 5. The third bend 15 is positioned by the third positioning block 5, which provides high stability.

[0023] like Figure 1 As shown, an electric heating rod 3 extending into the hot bath 1 is provided on one side of the hot bath 1. The hot bath 1 contains a heat transfer fluid that immerses the inorganic membrane filter 2. In this embodiment, the heat transfer fluid is water or heat transfer oil. The heat transfer fluid is heated by the electric heating rod 3, thereby heating the inorganic membrane filter 2, improving the fluidity of the waste lubricating oil in the inorganic membrane filter 2, and reducing the viscous caking phenomenon.

[0024] In addition, the first bend 10, the second bend 9 and the third bend 15 can also be heated by heat transfer fluid to reduce wall adhesion and flow resistance, further improve the fluidity of waste lubricating oil and increase the desolidification and purification efficiency of waste lubricating oil.

[0025] A temperature control switch 4 is installed on the side of the heat bath 1 to monitor the temperature of the heat transfer fluid. The temperature control switch 4 is connected to the electric heating rod 3 to control the heating of the electric heating rod 3 and ensure the stability of the temperature of the heat transfer fluid.

[0026] In this embodiment, the first bend 10, the second bend 9, and the third bend 15 are all made of stainless steel, which has good corrosion resistance. The top end of the first bend 10 is provided with a first pipe joint 14, which can be connected to a concentrate outlet pipe to export the fine solid particles and a small amount of waste lubricating oil filtered by the inorganic membrane filter 2, facilitating further separation processing.

[0027] A second pipe connector 8 is provided at the top of the second bend, and the second pipe connector 8 is externally connected to a waste lubricating oil supply pipe to send the waste lubricating oil into the inorganic membrane filter 2 for desolidification and purification treatment. A third pipe connector 16 is provided at the top of the third bend 15. In this embodiment, the third pipe connector 16 can be externally connected to a permeate outlet pipe to export the waste lubricating oil that does not contain fine solid particles for subsequent regeneration treatment.

[0028] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A waste lubricating oil desolidification and purification device, characterized in that, include: The system comprises a hot bath, an inorganic membrane filter, a first bend, a second bend, and a third bend. The inorganic membrane filter is movably installed in the hot bath. A first positioning block, a second positioning block, and a third positioning block are circumferentially spaced on the top of the hot bath. A concentrate outlet is located at the bottom of the inorganic membrane filter. The first bend is installed in the hot bath, with its bottom end connected to the concentrate outlet. The top of the first bend extends outward from the first positioning block. A waste lubricating oil inlet is located at the top of the inorganic membrane filter. The second bend is installed in the hot bath, with its bottom end connected to the waste lubricating oil inlet. The top of the second bend extends outward from the second positioning block. A permeate outlet is located on one side of the inorganic membrane filter. The third bend is installed in the hot bath, with its bottom end connected to the permeate outlet. The top of the third bend extends outward from the third positioning block.

2. The waste lubricating oil desolidification and purification device according to claim 1, characterized in that, An electric heating rod extending into the hot bath is provided on one side of the hot bath.

3. The waste lubricating oil desolidification and purification device according to claim 2, characterized in that, A temperature control switch is installed on the side of the hot bath, and the temperature control switch is connected to the electric heating rod for heating control.

4. The waste lubricating oil desolidification and purification device according to claim 1, characterized in that, The heat transfer fluid is provided in the hot bath box to immerse the inorganic membrane filter.

5. The waste lubricating oil desolidification and purification device according to claim 4, characterized in that, The heat transfer fluid is water or heat transfer oil.

6. The waste lubricating oil desolidification and purification device according to claim 1, characterized in that, The first positioning block, the second positioning block, and the third positioning block are recessed with grooves that extend radially along the hot bath box.

7. The waste lubricating oil desolidification and purification device according to claim 1, characterized in that, The first bend, the second bend, and the third bend are all made of stainless steel.

8. The waste lubricating oil desolidification and purification device according to claim 1, characterized in that, The first bend has a first pipe joint at its top end, the second bend has a second pipe joint at its top end, and the third bend has a third pipe joint at its top end.

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