An even-heated waste oil regeneration device

Abstract

The present application relates to waste oil regeneration technical field, specifically, it relates to a waste oil regeneration device which is heated uniformly, which comprises an oil conveying pipe, an inner bin plate and an oil accumulation plate, the heat of the steam which flows from bottom to top through the steam passage is transmitted to the inner end of the isolation chamber, the waste lubricating oil which flows downward is uniformly preheated, the water and residue with low boiling point are separated out, the floating matter is prevented from being formed, the separation of the water and residue is prevented from being hindered, the waste lubricating oil which is preheated is secondarily heated through the heat of the steam which is separated out through the steam passage, the oil temperature of each area of the waste lubricating oil which is preheated is same, the heat transmission efficiency is higher when the waste lubricating oil is secondarily heated, the lower chamber can be uniformly heated during the downward movement, the heating effect of the waste lubricating oil is further improved, the residue with different boiling points is collected in different areas, and the residue which is separated out in the same area is prevented from being mixed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste oil regeneration, in particular to a waste oil regeneration device with uniform heating. BACKGROUND

[0002] In specific use, the production and processing technology of lubricating oil is complex, the equipment is numerous and the construction investment is large, and the production of lubricating oil is not easy, so the regeneration of waste lubricating oil not only saves scarce resources, but also prevents further environmental pollution. In the past, the collected waste lubricating oil was treated by itself, some was directly poured or buried, which led to a considerable part flowing into rivers, lakes and seas, causing a large number of marine plant and animal deaths, and the buried waste oil polluted the soil and groundwater, and a large part of the waste lubricating oil was used as fuel, and the smoke contained metal oxides and incomplete combustion of carcinogenic substances polycyclic aromatic hydrocarbons, which not only caused great waste, but also aggravated environmental pollution. Therefore, the recovery of waste lubricating oil is a way beneficial to resource utilization.

[0003] The traditional waste lubricating oil treatment process mainly adopts the following steps:

[0004] 1. Hydroprocessing of waste lubricating oil, flash separation to remove part of the impurities in the waste oil;

[0005] 2. Adding a protective agent and reacting with a metal catalyst;

[0006] 3. Heating treatment to separate other substances with different boiling points from the waste lubricating oil.

[0007] In the heat treatment process, the traditional treatment method is to pass the steam pipe into the end of the waste lubricating oil, and use non-contact heating method to heat and treat the waste lubricating oil by using waste heat, but because the contact area of the steam pipe with the waste lubricating oil is limited, the waste lubricating oil near the steam pipe is heated more efficiently, and its temperature rises faster than that of the end far away, so that the waste lubricating oil in this part first separates the residues, and when the heat is transferred to the end far away, the high-boiling-point residues near the pipe end also begin to separate, which easily mixes with the low-boiling-point residues that have just been separated from the end far away, so that the separated residue waste gas needs to be treated twice, and at the same time, during the heating process, a layer of floating matter is separated from the surface of the long-term static waste lubricating oil, which blocks the upward separation of water vapor and residue waste gas, and cannot be separated from the steam tank in time.

[0008] In order to solve the above problems, there is an urgent need for a waste oil regeneration device with uniform heating. SUMMARY

[0009] The present application aims to provide a waste oil regeneration device with uniform heating to solve the problems in the background art.

[0010] In order to achieve the above object, the application provides a waste oil regeneration device with uniform heating, which comprises a heating tank, a waste oil storage bin for storing waste oil, and an evaporation bin arranged at the bottom end of the heating tank, wherein the inner end of the evaporation bin is provided with a steam supply bin plate, the middle position of the inner end of the heating tank is provided with an oil accumulation plate, the top end of the oil accumulation plate is provided with an oil conveying pipe which penetrates through the oil accumulation plate, the bottom end of the oil conveying pipe is provided with a pair of hydraulic rods for driving the oil conveying pipe to move up and down, the top end of the oil accumulation plate is provided with an inner bin plate, and the inner bin plate, the oil accumulation plate and the steam supply bin plate are in communication with a steam passage.

[0011] The inner bin plate is arranged outside the oil conveying pipe, and an isolation chamber for preheating waste oil is formed between the inner side of the inner bin plate, the outer side of the oil conveying pipe and the top end of the oil accumulation plate.

[0012] The inner end of the oil conveying pipe is provided with an upper chamber and a lower chamber, the top end of the upper chamber is connected with the bottom end of the waste oil storage bin through an upper sealing column, and when the oil conveying pipe moves to the highest point, the upper sealing column is synchronously pushed to open the waste oil storage bin and the upper chamber, so that the waste oil in the inner end of the upper sealing column is guided into the inner end of the upper chamber, and in the process of moving down, the waste oil is taken out by the relatively upward moving upper sealing column and slowly overflows into the inner end of the isolation chamber through the upper chamber port, and the heat energy released by the upward flowing steam in the inner end of the steam passage uniformly heats and treats the overflowed waste oil.

[0013] The two sides near the bottom end of the oil conveying pipe are provided with leak holes which are in communication with the inner end of the lower chamber, and in the process of moving down of the oil conveying pipe, the bottom of the two leak hole ports is in contact with the waste oil liquid surface, so that the preheated waste oil is guided into the inner end of the lower chamber and moves to the inner side of the steam supply bin plate synchronously with the oil conveying pipe, and the heat energy released by the upward flowing steam in the inner end of the steam passage is used for secondary uniform heating treatment.

[0014] As a further improvement of the technical solution, the steam passage comprises a steam guiding groove, an oil leakage groove and a flow guiding groove, the steam guiding groove is arranged at the inner end of the inner bin plate, the two sides of the inner bin plate near the middle position are provided with upper steam discharge pipes, one end of the upper steam discharge pipe extends out of the outer end of the heating tank, the other end of the upper steam discharge pipe is in communication with the inner end of the steam guiding groove for guiding the flowing steam out of the inner end of the steam passage, the oil leakage groove is arranged at the top end of the oil accumulation plate, the flow guiding groove is arranged at the inner end of the steam supply bin plate, and the steam guiding groove, the oil leakage groove and the flow guiding groove are in communication, the outer end of the steam supply bin plate is provided with outer steam pipes which are in communication with the flow guiding groove for guiding the external steam into the inner end of the flow guiding groove.

[0015] As a further improvement of the technical solution, the oil and gas exhaust pipe is provided with an oil and gas exhaust pipe on both sides of the top end of the inner tank plate, one end of the oil and gas exhaust pipe extends outside the heating tank, and the other end of the oil and gas exhaust pipe is in communication with the isolation chamber for guiding the waste gas generated by heating out of the inner end of the isolation chamber.

[0016] As a further improvement of the technical solution, the oil and gas exhaust pipe is provided with an oil and gas exhaust pipe on both sides of the top end of the inner tank plate, one end of the oil and gas exhaust pipe extends outside the heating tank, and the other end of the oil and gas exhaust pipe is in communication with the isolation chamber for guiding the waste gas generated by heating out of the inner end of the isolation chamber.

[0017] As a further improvement of the technical solution, the upper sealing column is composed of a T-shaped block spliced from top to bottom, and the upper sealing column is in sliding connection with the inner end of the waste oil storage tank, the upper chamber and the lower chamber are separated by a partition block, the bottom end port of the waste oil storage tank is aligned with the top end port of the oil conveying pipe, and the cross-sectional size of the bottom end port of the waste oil storage tank is smaller than that of the top end port of the oil conveying pipe.

[0018] As a further improvement of the technical solution, the lower sealing column is provided with a lower sealing column at the bottom end of the inner end of the lower chamber, the cross section of the lower sealing column is T-shaped, and the lower sealing column is in sliding connection with the inner end of the lower chamber, the bottom end of the evaporation tank is provided with a bottom cylinder, the top end port of the bottom cylinder is aligned with the bottom end of the lower chamber, and the cross-sectional size of the top end port of the bottom cylinder is larger than that of the bottom end of the oil conveying pipe.

[0019] As a further improvement of the technical solution, the top end of the oil accumulation plate is provided with a top groove, and the top groove is a tapered structure.

[0020] As a further improvement of the technical solution, the leakage hole is an inclined structure, the leakage hole is inclined towards the top end of the oil conveying pipe, and the port of the leakage hole is aligned with the inner wall of the top groove.

[0021] As a further improvement of the technical solution, the inner end of the steam guide groove is provided with a sealing ring plate, the steam guide groove is composed of an upper groove and a lower groove, the cross-sectional size of the sealing ring plate is smaller than that of the lower groove, and a gap for steam flow is formed between the sealing ring plate and the lower groove, the bottom end of the steam guide groove is provided with a notch, the cross-sectional size of the sealing ring plate is consistent with that of the upper groove and the notch, the top end of the sealing ring plate is fixedly connected with the top end of the oil conveying pipe and moves up and down synchronously with the oil conveying pipe, and the position of the sealing ring plate in the inner end of the steam guide groove is adjusted.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The waste oil regeneration device uniformly heated, the heat of the steam flowing from bottom to top through the steam passage will be transmitted to the inner end of the isolation chamber, and the waste lubricating oil flowing downward is uniformly preheated, and the water and residues with low boiling point are separated out, preventing the formation of floating objects, preventing the separation of water and residues, and the heat of the steam passage is used for secondary heating of the preheated waste lubricating oil. Since the oil temperature of each area of the preheated waste lubricating oil is the same, the heat transfer efficiency is higher during secondary heating, so that the lower chamber can be uniformly heated during the downward movement, further improving the heating effect of the waste lubricating oil, and preventing the mixing of different residues separated in the same area. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 It is a sectional view of the overall structure of the present application;

[0026] Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a partial enlarged view of A of the present application;

[0027] Figure 4 It is a schematic diagram of the overall structure of the present application;

[0028] Figure 5 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 6 It is a schematic diagram of the overall structure of the present application;

[0030] Figure 7 It is a schematic diagram of the overall structure of the present application;

[0031] Figure 8 It is a schematic diagram of the connection of the inner bin plate, the oil accumulation plate and the steam bin plate of the present application.

[0032] The meanings of the various reference numerals in the drawings are as follows:

[0033] 10, heating tank; 110, waste oil storage bin; 111, upper sealing column; 120, top cover; 121, oil inlet pipe; 130, evaporation bin; 140, bottom cylinder; 150, oil accumulation plate; 151, oil leakage groove; 160, lower exhaust steam pipe;

[0034] 20, oil conveying pipe; 210, upper chamber; 220, lower chamber; 221, leakage hole; 222, lower sealing column; 230, hydraulic rod;

[0035] 30, inner tank plate; 310, steam guide groove; 311, notch; 320, oil gas exhaust pipe; 330, upper exhaust steam pipe; 340, oil filter; 350, sealing ring plate;

[0036] 40, steam tank plate; 410, external steam pipe. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] Please refer to Figures 1-3 As shown in the drawings, a waste oil regeneration device with uniform heating is provided, which comprises a heating tank 10, a waste oil storage tank 110 for storing waste oil, and an evaporation tank 130 arranged at the bottom end of the heating tank 10. The inner end of the evaporation tank 130 is provided with a steam tank plate 40 for supplying steam. The middle position of the inner end of the heating tank 10 is provided with an oil accumulation plate 150. The top end of the oil accumulation plate 150 is provided with an oil conveying pipe 20, and the bottom end of the oil conveying pipe 20 is provided with a pair of hydraulic rods 230 for driving the oil conveying pipe 20 to move up and down. The top end of the oil accumulation plate 150 is provided with an inner tank plate 30. The inner tank plate 30, the oil accumulation plate 150 and the steam tank plate 40 are in communication with a steam passage;

[0040] The inner tank plate 30 is sleeved outside the oil conveying pipe 20, and an isolation chamber for preheating waste oil is formed between the inner side of the inner tank plate 30, the outer side of the oil conveying pipe 20 and the top end of the oil accumulation plate 150;

[0041] The upper chamber 210 and the lower chamber 220 are arranged at the inner end of the oil conveying pipe 20, the upper sealing column 111 is connected between the top end of the upper chamber 210 and the bottom end of the waste oil storage bin 110, and when the oil conveying pipe 20 moves to the highest point, the upper sealing column 111 is pushed synchronously to guide the waste oil in the inner end of the upper sealing column 111 into the inner end of the upper chamber 210, and in the process of moving downward, the waste oil is brought out by the relatively upward moving upper sealing column 111 and slowly overflows into the inner end of the isolation chamber along the port of the upper chamber 210, and the heat energy released by the upward flowing steam in the inner end of the steam passage uniformly heats and processes the overflowing waste oil;

[0042] The two leak holes 221 are arranged at the two sides close to the bottom end of the oil conveying pipe 20 and are in communication with the inner end of the lower chamber 220, and in the process of moving downward of the oil conveying pipe 20, the bottom of the port of the two leak holes 221 is in contact with the waste oil liquid surface, the preheated waste oil is guided into the inner end of the lower chamber 220, and is moved to the inner side of the steam bin plate 40 synchronously with the oil conveying pipe 20, and the heat energy released by the upward flowing steam in the inner end of the steam passage is used for the secondary uniform heating process of the waste oil.

[0043] In the process of heating the waste lubricating oil, first, the waste lubricating oil to be processed is guided into the inner end of the waste oil storage bin 110 through the oil inlet pipe 121 arranged at the top cover 120 of the top end of the waste oil storage bin 110, is stored in the inner end of the waste oil storage bin 110, and steam is continuously introduced into the steam passage through the steam bin plate 40, the steam flows from bottom to top in the steam passage, at this time, the hydraulic rod 230 is started, the oil conveying pipe 20 is vertically moved upward synchronously by the hydraulic rod 230, the upper sealing column 111 is moved by being pushed, the waste oil storage bin 110 and the upper chamber 210 are communicated, and the waste lubricating oil stored in the inner end of the waste oil storage bin 110 flows into the inner end of the upper chamber 210, and the material guiding work of the waste lubricating oil is completed;

[0044] The oil conveying pipe 20 is moved downward by the hydraulic rod 230, the upper sealing column 111 is gradually separated from the inner end of the upper chamber 210, and in the process of relatively moving upward, the waste lubricating oil in the inner end of the upper chamber 210 is pushed out and downwardly overflows along the port at the top end of the upper chamber 210, the waste lubricating oil is filtered by the oil filter 340 arranged at the inner end of the inner bin plate 30 and flows downward along the inner end of the isolation chamber, at this time, the heat released by the steam flowing from bottom to top in the steam passage is transmitted to the inner end of the isolation chamber, the waste lubricating oil flowing downward is uniformly preheated, the water and residues with low boiling points are separated out, and floating objects are prevented from being formed to hinder the separation of water and residues;

[0045] After the preheating work is completed, the preheated waste lubricating oil will be accumulated at the bottom of the isolation chamber. At this time, the hydraulic rod 230 continues to drive the oil conveying pipe 20 to move downward, so that the leakage hole 221 gradually approaches the oil surface of the waste lubricating oil, until the port of the leakage hole 221 is flush with the oil surface of the waste lubricating oil. At this time, the preheated waste lubricating oil will be discharged into the lower chamber 220 through the port of the leakage hole 221, and will be synchronously moved downward with the lower chamber 220 to the inner end position of the vapor warehouse plate 40. At this time, higher temperature vapor is introduced into the inner end of the vapor warehouse plate 40, and flows through the vapor passage. The heat extracted therefrom performs secondary heating treatment on the preheated waste lubricating oil. Since the oil temperature of each region of the preheated waste lubricating oil is the same, the heat transfer efficiency is higher during secondary heating, so that the lower chamber 220 can be uniformly heated during the downward movement, further improving the heating effect of the waste lubricating oil, and preventing the mixing of different residues extracted from the same region.

[0046] In addition, as shown in Figure 8 The vapor passage includes a vapor guide groove 310, an oil leakage groove 151, and a flow guide groove. The vapor guide groove 310 is opened at the inner end of the inner warehouse plate 30, and the upper vapor discharge pipe 330 is arranged at both sides of the inner warehouse plate 30 near the middle position. One end of the upper vapor discharge pipe 330 extends out of the outer end of the heating tank 10, and the other end of the upper vapor discharge pipe 330 is in communication with the inner end of the vapor guide groove 310, for guiding the flowing vapor out of the inner end of the vapor passage. The oil leakage groove 151 is opened at the top end of the oil accumulation plate 150, and the flow guide groove is opened at the inner end of the vapor warehouse plate 40. The vapor guide groove 310, the oil leakage groove 151, and the flow guide groove are in communication. The outer vapor pipe 410 is arranged at both sides of the bottom end of the vapor warehouse plate 40 and is in communication with the flow guide groove, for guiding the external vapor into the inner end of the flow guide groove.

[0047] The oil and gas discharge pipe 320 is arranged at both sides of the top end of the inner warehouse plate 30. One end of the oil and gas discharge pipe 320 extends out of the outer side of the heating tank 10, and the other end of the oil and gas discharge pipe 320 is in communication with the isolation chamber, for guiding the heated waste gas out of the inner end of the isolation chamber.

[0048] The oil accumulation plate 150 is fixedly provided with a circular ring at the bottom end, and the circular ring is sleeved outside the oil conveying pipe 20. The lower vapor discharge pipe 160 is arranged at both sides of the circular ring, and when the leakage hole 221 moves to the position flush with the port of the lower vapor discharge pipe 160, the lower vapor discharge pipe 160 is in a state of communication with the leakage hole 221, for guiding the secondary heated waste gas out of the inner end of the lower chamber 220. The other end of the lower vapor discharge pipe 160 extends out of the inner end of the heating tank 10, for guiding the secondary heated waste gas out.

[0049] In specific use, during the preheating process, the oil conveying pipe 20 is moved downward under the action of the hydraulic rod 230, so that the leakage hole 221 gradually approaches the oil surface of the waste lubricating oil, until the port of the leakage hole 221 is flush with the oil surface of the waste lubricating oil. At this time, the preheated waste lubricating oil will be discharged into the lower chamber 220 through the port of the leakage hole 221, and will be synchronously moved downward with the lower chamber 220 to the inner end position of the vapor warehouse plate 40. At this time, higher temperature vapor is introduced into the inner end of the vapor warehouse plate 40, and flows through the vapor passage. The heat extracted therefrom performs secondary heating treatment on the preheated waste lubricating oil. Since the oil temperature of each region of the preheated waste lubricating oil is the same, the heat transfer efficiency is higher during secondary heating, so that the lower chamber 220 can be uniformly heated during the downward movement, further improving the heating effect of the waste lubricating oil, and preventing the mixing of different residues extracted from the same region. Figure 4As shown, external steam is first supplied to the inner end of the steam channel through external steam pipes 410 on both sides. The steam is guided to the inner end of the guide groove through the external steam pipes 410, and then transmitted to the inner end of the oil leakage groove 151 through the guide groove. After passing through the oil leakage groove 151, it is transmitted to the inner end of the steam guide groove 310. Then, the flowing steam is discharged through the lower steam pipes 160 on both sides of the inner chamber plate 30. During this process, the waste lubricating oil overflowing from the port of the upper chamber 210 flows from top to bottom along the isolation chamber, while the steam in the inner end of the steam guide groove 310 flows from bottom to top. Through the inner wall of the inner chamber plate 30, the heat is transferred to the inner end of the isolation chamber, and the flowing waste lubricating oil is uniformly heat-conducted. This ensures that the waste lubricating oil overflowing at each stage can receive sufficient heat, and the continuously flowing waste lubricating oil cannot form condensed floating matter. This allows the precipitated waste gas to be easily discharged from the interior of the waste lubricating oil and flow towards the top of the isolation chamber. The precipitated waste gas is then discharged through the oil and gas discharge pipes 320 on both sides of the top of the inner chamber plate 30.

[0050] From 5- Figure 7 As shown, the solid arrows indicate the direction of steam flow, the dashed arrows indicate the direction of the released waste gas flow, and the hollow arrows indicate the direction of movement of the oil conveying pipe 20. After the preheating work is completed, the preheated waste lubricating oil overflowing from the inner end of the upper chamber 210 will accumulate at the bottom of the inner end of the isolation chamber, that is, at the top of the oil collection plate 150. During this process, the oil conveying pipe 20 continues to move downward until the two ends of the drain hole 221 are aligned with the corresponding ports of the lower steam pipe 160. At this time, the lower chamber 220 is connected to the lower steam pipe 160 through the drain hole 221, so that the waste gas released from the secondary heating can be discharged through the lower steam pipe 160. This is because the waste lubricating oil contains other waste oils and impurities with different boiling points. When the secondary heating is performed, the temperature of the added steam will increase. At this time, the waste gas with different boiling points is discharged separately through the oil and gas drain pipe 320 and the lower steam pipe 160, so as to avoid the waste gas with different boiling points from mixing in the same pipe and requiring secondary separation later.

[0051] Furthermore, the upper sealing column 111 is composed of T-shaped blocks spliced ​​together from top to bottom, and the upper sealing column 111 is slidably connected to the inner end of the waste oil storage chamber 110. The upper chamber 210 and the lower chamber 220 are separated by a partition block. The bottom port of the waste oil storage chamber 110 is aligned with the top port of the oil transport pipe 20, and the cross-sectional dimension of the bottom port of the waste oil storage chamber 110 is smaller than that of the top port of the oil transport pipe 20.

[0052] A lower sealing column 222 is provided at the bottom of the inner end of the lower chamber 220. The lower sealing column 222 has a T-shaped cross section and is slidably connected to the inner end of the lower chamber 220. Its bottom end extends out of the inner end of the lower chamber 220. A bottom cylinder 140 is provided at the bottom of the evaporation chamber 130. The top end of the bottom cylinder 140 is aligned with the bottom end of the lower chamber 220, and the cross-sectional dimension of the top end of the bottom cylinder 140 is larger than the cross-sectional dimension of the bottom end of the oil transport pipe 20.

[0053] In practical use, during the process of introducing waste lubricating oil, by Figure 5 As shown, the bottom cylinder 140 drives the oil conveying pipe 20 to move upward. The inner end of the oil conveying pipe 20 slides along the outer side of the bottom end of the upper sealing column 111, so that the bottom end of the upper sealing column 111 gradually approaches the partition until the two contact. The partition drives the upper sealing column 111 to move vertically upward. At this time, the top end of the oil conveying pipe 20 is completely fitted into the bottom end of the waste oil storage chamber 110. During the upward movement of the upper sealing column 111, a gap will be generated between it and the inner wall of the waste oil storage chamber 110, so that the waste lubricating oil stored in the inner end of the waste oil storage chamber 110 flows into the inner end of the upper chamber 210 along the gap, completing the introduction of waste lubricating oil.

[0054] During the process of draining waste lubricating oil, the waste lubricating oil located at the inner end of the lower chamber 220 is heated a second time and then continues to move downwards via the hydraulic rod 230. Figure 7 As shown, at this time, the lower sealing column 222 is in contact with the inner wall of the bottom cylinder 140 and is driven by the reaction force provided by the inner wall of the bottom cylinder 140 to slide in the opposite direction along the inner end of the lower chamber 220 and form a gap with the inner end of the lower chamber 220, so that the waste lubricating oil after secondary heating is introduced into the inner end of the bottom cylinder 140 and collected and treated centrally through the bottom cylinder 140.

[0055] It is worth noting that the weight generated by the lower sealing column 222 and the upper sealing column 111 is much greater than the buoyancy generated by the waste lubricating oil. When there is no external force pushing, the upper sealing column 111 is always in contact with the inner wall of the bottom end of the waste oil storage chamber 110, blocking the port of the waste oil storage chamber 110, and the lower sealing column 222 is always in contact with the inner wall of the bottom end of the lower chamber 220, blocking the port of the bottom end of the lower chamber 220. This ensures that both the waste oil storage chamber 110 and the lower chamber 220 are in a sealed state, preventing leakage.

[0056] During the process of the oil pipe 20 moving down to connect the lower chamber 220 and the bottom cylinder 140, the leak hole 221 moves down synchronously with the oil pipe 20, so that the port of the leak hole 221 is misaligned with the port of the lower steam pipe 160. At this time, the leak hole 221 moves to the inner end of the ring near the bottom and is sealed by the inner wall of the ring. At this time, there is no need to carry out heating work to prevent continuous steam discharge from causing waste.

[0057] Further, the top end of the oil accumulation plate 150 is provided with a top groove, which is a tapered structure.

[0058] The leakage hole 221 is an inclined structure, which is inclined towards the top end of the oil conveying pipe 20, and the port of the leakage hole 221 is flush with the inner wall of the top groove.

[0059] In specific use, since the waste lubricating oil is a thick liquid, the flow on the plane is relatively slow, and the friction generated is relatively large, so part of the waste lubricating oil will adhere to the top end of the oil accumulation plate 150, resulting in that the waste lubricating oil after preheating is too low in discharging efficiency. The top groove is provided at the top end of the oil accumulation plate 150 to collect the waste lubricating oil after preheating, and the top groove is a tapered structure, so that the collected waste lubricating oil has a downward flow trend. When the leakage hole 221 moves to the bottom end of the top groove along with the oil conveying pipe 20, the port of the leakage hole 221 is flush with the inner wall of the top groove, and the collected waste lubricating oil loses the restraint of the inner wall of the top groove and will be guided into the inner end of the lower chamber 220 along the leakage hole 221. The potential energy generated by the height difference of the tapered surface accelerates the flow speed of the waste lubricating oil, improves the discharging efficiency of the waste lubricating oil, and reduces the frictional resistance generated by the waste lubricating oil and the contact surface, thereby reducing the residual amount of the waste lubricating oil.

[0060] Specifically, as shown in the figure, Figures 2-3 The inner end of the steam guide groove 310 is provided with a sealing ring plate 350, the steam guide groove 310 is composed of an upper groove and a lower groove, the cross-sectional size of the sealing ring plate 350 is smaller than that of the lower groove, and a steam flow gap is formed between the sealing ring plate 350 and the lower groove. The bottom end of the steam guide groove 310 is provided with a notch 311, the cross-sectional sizes of the sealing ring plate 350, the upper groove and the notch 311 are consistent, the top end of the sealing ring plate 350 is fixedly connected with the top end position of the oil conveying pipe 20 and moves up and down synchronously with the oil conveying pipe 20, and the position of the sealing ring plate 350 in the inner end of the steam guide groove 310 is adjusted.

[0061] In specific use, during the external steam supply process, the sealing ring plate 350 is at the lowest point, the lower sealing column 222 is in contact with the inner wall of the bottom cylinder 140, that is, the bottom end of the sealing ring plate 350 is located in the inner end of the notch 311, and the passage between the steam guide groove 310 and the oil leakage groove 151 is blocked. At this time, the steam flowing into the inner end of the external steam pipe 410 will gradually fill the entire external steam pipe 410 and the inner end of the oil leakage groove 151, so that the amount of steam at each position of the bottom end of the sealing ring plate 350 is uniform, until the oil conveying pipe 20 moves up. At this time, the sealing ring plate 350 moves up synchronously with the oil conveying pipe 20, the steam accumulated in the inner end of the external steam pipe 410 and the oil leakage groove 151 flows uniformly into the inner end of the steam guide groove 310, and is discharged through the two upper steam discharge pipes 330, so that the amount of steam flowing upward in each area of the inner end of the steam guide groove 310 is uniform, and it is ensured that the waste lubricating oil overflowing from different positions can receive the same amount of heat, thereby further improving the uniform heating effect.

[0062] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste oil regeneration device that is heated uniformly, comprising a heating tank (10), a waste oil storage bin (110) for storing waste oil, and an evaporation bin (130) provided at the bottom end of the heating tank (10), wherein an inner end of the evaporation bin (130) is provided with a steam supply bin plate (40) for supplying steam, characterized in that: The middle position of the inner end of the heating tank (10) is provided with an oil accumulation plate (150), the top end of the oil accumulation plate (150) is provided with an oil conveying pipe (20) penetrating through, and the bottom end of the oil conveying pipe (20) is provided with a pair of hydraulic rods (230) driving it to move up and down, the top end of the oil accumulation plate (150) is provided with an inner bin plate (30), the inner bin plate (30), the oil accumulation plate (150) and the vapor bin plate (40) are communicated with a vapor channel; ​ The inner bin plate (30) is sleeved outside the oil conveying pipe (20), and the inner side of the inner bin plate (30), the outer side of the oil conveying pipe (20) and the top end of the oil accumulation plate (150) form an isolation chamber for preheating waste oil; The inner end of the oil conveying pipe (20) is provided with an upper chamber (210) and a lower chamber (220), the top end of the upper chamber (210) and the bottom end of the waste oil storage bin (110) are connected with an upper sealing column (111), and when the oil conveying pipe (20) moves to the highest point, the upper sealing column (111) is pushed synchronously to communicate the waste oil storage bin (110) and the upper chamber (210), and the waste oil in the inner end of the upper sealing column (111) is guided into the inner end of the upper chamber (210), in the process of moving down, the waste oil is taken out by the relatively upward moving upper sealing column (111), and is slowly overflowed into the inner end of the isolation chamber along the port of the upper chamber (210), the heat energy released by the upward flowing vapor in the inner end of the vapor channel uniformly heats and treats the overflowed waste oil; The two sides of the oil conveying pipe (20) close to the bottom end are provided with leak holes (221) in communication with the inner end of the lower chamber (220), and in the process of moving down of the oil conveying pipe (20), the bottom of the two leak holes (221) is in contact with the waste oil liquid level, so that the preheated waste oil is guided into the inner end of the lower chamber (220), and is moved to the inner side of the vapor bin plate (40) synchronously with the oil conveying pipe (20), and the heat energy released by the upward flowing vapor in the inner end of the vapor channel is used for secondary uniform heating treatment of the waste oil; The vapor channel comprises a vapor guide groove (310), an oil leakage groove (151) and a flow guide groove, the vapor guide groove (310) is arranged at the inner end of the inner bin plate (30), the two sides of the inner bin plate (30) close to the middle position are provided with upper vapor discharge pipes (330), one end of the upper vapor discharge pipes (330) extends out of the outer end of the heating tank (10), the other end of the upper vapor discharge pipes (330) is in communication with the inner end of the vapor guide groove (310), and is used for guiding the flowing vapor out of the inner end of the vapor channel, the oil leakage groove (151) is arranged at the top end of the oil accumulation plate (150), the flow guide groove is arranged at the inner end of the vapor bin plate (40), and the vapor guide groove (310), the oil leakage groove (151) and the flow guide groove are in communication, and the two sides of the bottom end of the vapor bin plate (40) are provided with external vapor pipes (410) in communication with the flow guide groove, which are used for guiding the external vapor into the inner end of the flow guide groove.

2. The waste oil regenerating apparatus according to claim 1, wherein: The top end of the inner bin plate (30) is provided with oil and gas discharge pipes (320) on both sides, one end of the oil and gas discharge pipes (320) extends out of the outer side of the heating tank (10), the other end of the oil and gas discharge pipes (320) is in communication with the isolation chamber, and is used for guiding the waste gas generated by heating out of the inner end of the isolation chamber.

3. The waste oil regenerating apparatus according to claim 1, wherein: The bottom end of the oil accumulation plate (150) is fixedly provided with a circular ring, the circular ring is sleeved outside the oil conveying pipe (20), and the lower exhaust pipe (160) is arranged on both sides of the circular ring. When the leakage hole (221) moves to the position where the port of the lower exhaust pipe (160) is flush, the lower exhaust pipe (160) keeps a conductive state with the leakage hole (221), and is used for guiding the waste gas generated by secondary heating out of the inner end of the lower chamber (220). The other end of the lower exhaust pipe (160) extends out of the inner end of the heating tank (10), and is used for guiding the waste gas generated by secondary heating out.

4. The waste oil regenerating apparatus according to claim 1, wherein: The upper sealing column (111) is composed of a T-shaped block spliced up and down, and the upper sealing column (111) is in sliding connection with the inner end of the waste oil storage bin (110). The upper chamber (210) and the lower chamber (220) are separated by a partition block. The port at the bottom end of the waste oil storage bin (110) is aligned with the port at the top end of the oil conveying pipe (20), and the cross-sectional dimension of the port at the bottom end of the waste oil storage bin (110) is smaller than that of the port at the top end of the oil conveying pipe (20).

5. The waste oil regenerating apparatus according to claim 4, wherein: The inner end of the lower chamber (220) is provided with a lower sealing column (222) at the bottom end. The cross section of the lower sealing column (222) is T-shaped, and the lower sealing column (222) is in sliding connection with the inner end of the lower chamber (220). The bottom end of the evaporation bin (130) is provided with a bottom cylinder (140), the port at the top end of the bottom cylinder (140) is aligned with the bottom end of the lower chamber (220), and the cross-sectional dimension of the port at the top end of the bottom cylinder (140) is larger than that of the bottom end of the oil conveying pipe (20).

6. The waste oil regenerating apparatus according to claim 1, wherein: The top end of the oil accumulation plate (150) is provided with a top groove, and the top groove is a tapered structure.

7. The waste oil regenerating apparatus according to claim 6, wherein: The leakage hole (221) is an inclined structure, and the leakage hole (221) is inclined towards the top end of the oil conveying pipe (20). The port of the leakage hole (221) is flush with the inner wall of the top groove.

8. The waste oil regenerating apparatus according to claim 1, wherein: The inner end of the vapor guide groove (310) is slidably provided with a sealing ring plate (350). The vapor guide groove (310) is composed of an upper groove and a lower groove. The cross-sectional dimension of the sealing ring plate (350) is smaller than that of the lower groove, and a gap for vapor flow is formed between the sealing ring plate (350) and the lower groove. The bottom end of the vapor guide groove (310) is provided with a notch (311). The cross-sectional dimensions of the sealing ring plate (350), the upper groove and the notch (311) are consistent. The top end of the sealing ring plate (350) is fixedly connected with the top end of the oil conveying pipe (20), and moves up and down synchronously with the oil conveying pipe (20), so as to adjust the position of the sealing ring plate (350) in the inner end of the vapor guide groove (310).

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