A secondary extraction equipment for fine processing of petroleum residue

Abstract

The present invention discloses a secondary extraction device for the refined processing of petroleum residues, which is provided with an extraction tank, a feed port is provided on the side of the extraction tank, and a crushing assembly is provided inside the receiving hopper; the device comprises: a recovery mechanism provided below the receiving hopper, which sucks out the petroleum on the water by sucking oil; a liquid storage tank fixed to the top of the extraction tank, with a liquid inlet and an oil outlet provided on the upper left side and the lower right side of the storage tank, respectively; and a cylinder mounted on the top of the extraction tank by bolts, with the liquid storage tank annularly sleeved on the outside of the cylinder. The secondary extraction device for the refined processing of petroleum residues combines the crushing and extrusion of petroleum residues. The petroleum residues do not need to be transported inside the device, which can prevent the petroleum from adhering to the transport channel. The petroleum in the residues can be fully extracted by gas propulsion plus liquid impact, thereby increasing the oil output and the extraction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum extraction, in particular to secondary extraction equipment for fine processing of petroleum residue. Background Art

[0002] After oil extraction, a large amount of oil residue will remain, and the oil residue still contains some oil. Directly discarding it will cause a waste of resources. Therefore, the oil residue needs to be processed to extract the remaining oil. For example, a device for extracting oil from oil residue with publication number CN213388518U includes a grinder handle; by providing an electric push rod, a solid-liquid separation network and an electrode heating tube, the density of oil is smaller than that of water and the density of impurities in oil is greater than that of water, and the electrode heating tube is used to heat water into water vapor and remove it. What remains is pure oil, thereby improving the oil extraction rate;

[0003] For example, a petroleum extraction device for petroleum residues, disclosed in publication number CN211662688U, includes a bottom supporting plate. This device solves the problem that most existing petroleum residues are extracted by squeezing, where the oil residues after squeezing are aggregated and remain in the pressing barrel, causing trouble in cleaning up the residues later. This device can efficiently remove the extracted oil residues, facilitating the next quick use of the extraction device. However, the above-mentioned petroleum extraction device still has the following disadvantages during actual use:

[0004] 1. Although the above extraction device can extract oil, it is not convenient to combine the crushing and extrusion of oil residues during the processing. During the transmission of oil inside the device, some oil will adhere to the inner wall of the device, affecting the subsequent oil output;

[0005] 2. It is inconvenient to take out the oil and other substances separately. Some methods use the method of squeezing the oil residue to extract the oil. Since the residues are not in close contact and there are a lot of gaps, there are still a lot of residues after extraction, which affects the efficiency of oil extraction.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original extraction equipment. Summary of the Invention

[0007] The purpose of the present invention is to provide a secondary extraction device for fine processing of petroleum residues, so as to solve the problem proposed in the above-mentioned background technology that it is inconvenient to combine the crushing and extrusion of petroleum residues during the processing process, and some petroleum will adhere to the inner wall of the device during the transmission of petroleum inside the device, and it is inconvenient to take out the petroleum and other substances separately. Some people use the method of squeezing the petroleum residues to extract the oil. Since the residues are not in close contact and there are a lot of gaps, there is still a lot of residue after extraction.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a secondary extraction device for fine processing of petroleum residue, comprising an extraction tank, a feed port provided on the side of the extraction tank, a receiving hopper fixed inside the extraction tank, a crushing assembly provided inside the receiving hopper, and the crushing assembly being capable of further crushing large pieces of petroleum residue;

[0009] It includes: a recovery mechanism, which is arranged below the receiving hopper, and the recovery mechanism sucks out the oil on the water by sucking oil, and the recovery mechanism can be adaptively raised and lowered according to the height of the liquid level;

[0010] A liquid storage tank is fixed on the top of the extraction tank, and a liquid inlet and an oil outlet are respectively provided on the upper left side and the lower right side of the liquid storage tank;

[0011] The cylinder is mounted on the top of the extraction tank by bolts, the liquid storage tank is annularly sleeved on the outside of the cylinder, and a guide mechanism is installed on the output shaft of the cylinder. The guide mechanism drives the crushing assembly to rotate to crush the petroleum residue, and a pressurizing assembly is installed on the side of the guide mechanism. The pressure exerted by the pressurizing assembly can accelerate the discharge of oil in the petroleum residue.

[0012] Preferably, the crushing assembly includes a movable rod that rotates and passes through the bottom of the receiving hopper, and crushing knives of different lengths are installed at equal angles on the upper end of the movable rod, and the bottom of the movable rod and the inner bottom surface of the extraction tank are connected by a bearing. At the same time, the bottom of the receiving hopper is grid-shaped. When the movable rod rotates, it can drive multiple crushing knives to rotate synchronously, thereby crushing the petroleum residue.

[0013] Preferably, the recovery mechanism includes a floating ring arranged below the receiving hopper, and the floating ring is hollow inside, and an oil inlet hole is reserved at an equal angle on the lower end surface of the floating ring. At the same time, the cavity inside the floating ring is connected to the upper part of the interior of the liquid storage tank through a recovery pipe. The oil above the water can be sucked into the interior through the oil inlet hole through the floating ring, and then transported into the interior of the liquid storage tank through the recovery pipe.

[0014] Preferably, the guiding mechanism includes a fixed cylinder fixed to the cylinder output shaft, and the bottom of the fixed cylinder is connected to a pressure plate, and the pressure plate is connected to the connecting plate through a magnetic ring, and the bottom of the fixed cylinder is connected to a connecting cylinder. When the cylinder is driven, the pressure plate can be driven to descend, or the pressure plate and the connecting plate can be driven to descend synchronously.

[0015] Preferably, the connecting tube and the fixed tube are slidably connected, and the cross-section of the outer side of the connecting tube is a rectangular structure, and the connecting tube and the movable rod are threadedly connected. At the same time, the top of the movable rod is a twisted rod structure. When the pressure plate descends, it can drive the connecting tube to descend, and drive the connecting tube to contact the movable rod and then drive the movable rod and the crushing knife to rotate.

[0016] Preferably, the pressurizing assembly includes a connecting plate arranged on the outside of the pressure plate, and the connecting plate is an annular structure, and a guide rod is fixed at an equal angle on the upper end surface of the connecting plate, and the end of the guide rod away from the connecting plate is connected to a fixed plate. When the connecting plate descends, pressure can be applied to the extraction tank so that the oil in the petroleum residue can flow down quickly.

[0017] Preferably, the edge of the fixed plate fits and slides with the inner wall of the liquid storage tank, and the bottom of the liquid storage tank is connected to the fixed cavity through an infusion hose, and the fixed cavity is arranged in the connecting plate, and the lower end surface of the connecting plate is provided with a liquid spray nozzle at an equal angle. When the connecting plate descends, the fixing plate can be driven to descend synchronously in the liquid storage tank by the guide rod, so that the liquid in the liquid storage tank is transferred to the fixed cavity through the infusion hose.

[0018] Preferably, a storage mechanism is provided on the side of the guiding mechanism, and the storage mechanism can retract the connecting cylinder when the connecting plate descends, and push out the connecting cylinder when the connecting plate is fixed. The storage mechanism includes an electric push rod fixedly installed on both sides of the fixed cylinder, and a fixed block is fixed on the connecting plate at the output end of the electric push rod. The output shaft of the electric push rod can be driven through the hole on the fixed block by the drive of the electric push rod, thereby realizing the synchronous lifting and lowering of the connecting plate and the pressure plate.

[0019] Preferably, a hole is provided on the top of the fixed block, and the hole on the fixed block is engaged with the output shaft of the electric push rod, and the output end of one of the electric push rods is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to a rack. When the output shaft of one of the electric push rods is extended, the rack can be driven to move synchronously through the connecting rod, and then the movable cylinder is driven to rotate through the meshing transmission between the rack and the gear.

[0020] Preferably, the side of the rack is meshed with a gear, and a movable cylinder is fixed inside the gear and penetrated, and the top of the movable cylinder and the inner top surface of the fixed cylinder are rotatably connected. At the same time, the bottom thread of the movable cylinder is penetrated by a screw rod, and the bottom of the screw rod is fixed to the top of the connecting cylinder. When the movable cylinder rotates, it can drive the connecting cylinder to rise and fall and slide in the fixed cylinder through the thread transmission between the screw rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects: the secondary extraction equipment for refined petroleum residue combines the crushing and extrusion of petroleum residue, and the petroleum residue does not need to be transported inside the device, which can prevent the oil from adhering to the transportation channel. In addition, the oil in the residue can be fully extracted by gas propulsion plus liquid impact, thereby increasing the oil output and the extraction efficiency. The specific contents are as follows:

[0022] 1. The operation of the cylinder drives the pressure plate down through the fixed cylinder, which in turn drives the connecting cylinder down synchronously. When the connecting cylinder contacts the top of the movable rod, the threaded transmission between the two drives the movable rod and the crushing knife to rotate, thereby crushing the oil residue. This can improve the efficiency of oil extraction. The repeated lifting and lowering of the fixed cylinder can drive the movable rod to rotate rapidly forward and backward, achieving comprehensive crushing of the oil residue so that the oil can be extracted through pressure later.

[0023] 2. The floating ring can float on the surface of the oil. When the fixed plate descends, the negative pressure above it will draw the oil on the surface into the floating ring through the oil inlet hole. Then, the oil is transported into the liquid storage tank above the fixed plate through the recovery pipe to achieve oil recovery. When the fixed plate descends to the lowest point, the oil in the liquid storage tank can be discharged from the oil outlet.

[0024] 3. The guide rod is driven downward by the connection plate, and the fixed plate is pulled downward in the liquid storage tank by the guide rod, thereby transferring the liquid in the liquid storage tank to the fixed cavity through the liquid infusion hose, and finally spraying it out from the liquid spray nozzle. In this way, the lowering of the connection plate not only exerts gas pressure on the petroleum residue, but also sprays the liquid onto the petroleum residue, allowing the oil in the residue to fully flow out and flow to the bottom of the extraction tank for subsequent collection;

[0025] 4. The pressure plate can be lowered alone or the connecting plate can be driven down synchronously. Through the operation of the electric push rod, its output shaft extends through the hole on the fixed block, and the pressure plate and the connecting plate can be combined to apply pressure to the oil residue. After the two are separated, the pressure plate can be lowered alone to crush the oil residue.

[0026] Furthermore, when the output shaft of one of the electric push rods is extended, the rack can be driven to move synchronously through the connecting rod, and then the movable cylinder can be driven to rotate through the meshing transmission between the rack and the gear. The movable cylinder can drive the connecting cylinder to rise through the threaded transmission between the movable cylinder and the lead screw. Therefore, after the pressure plate and the connecting plate are combined, the connecting cylinder can be driven to be stored in the fixed cylinder. When the electric push rod is retracted, the combination of the pressure plate and the connecting plate can be released, and then the meshing transmission between the rack and the gear, and the threaded transmission between the movable cylinder and the lead screw can drive the connecting cylinder to descend and extend out of the outside of the pressure plate, so as to facilitate subsequent contact with the movable rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front view structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the front view structure of the crushing knife of the present invention;

[0030] Figure 4 This is a schematic diagram of the front cross-section structure of the liquid storage tank of the present invention;

[0031] Figure 5 This is a schematic diagram of the floating ring structure of the present invention when viewed from above;

[0032] Figure 6 This is a schematic diagram of the top view of the connecting plate of the present invention;

[0033] Figure 7 This is a bottom view of the structure of the connecting plate of the present invention;

[0034] Figure 8 It is a schematic diagram of the front cross-section structure of the connecting plate of the present invention.

[0035] In the figure: 1. Extraction tank; 2. Feed port; 3. Hopper; 4. Movable rod; 5. Crushing knife; 6. Floating ring; 7. Oil inlet; 8. Recovery pipe; 9. Liquid storage tank; 10. Liquid inlet; 11. Oil outlet; 12. Cylinder; 13. Fixed cylinder; 14. Press plate; 15. Magnetic ring; 16. Connecting plate; 17. Guide rod; 18. Fixed plate; 19. Infusion hose; 20. Fixed cavity; 21. Liquid spray nozzle; 22. Electric push rod; 23. Fixed block; 24. Connecting rod; 25. Rack; 26. Gear; 27. Movable cylinder; 28. Screw; 29. Connecting cylinder. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-8 , the present invention provides the following technical solutions:

[0038] Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical solutions: a secondary extraction equipment for fine processing of petroleum residue is provided, which is provided with an extraction tank 1, a feed port 2 is provided on the side of the extraction tank 1, and a receiving hopper 3 is fixed inside the extraction tank 1, a crushing assembly is provided inside the receiving hopper 3, and the crushing assembly can further crush large pieces of petroleum residue; it includes: a recovery mechanism, which is provided below the receiving hopper 3, and the recovery mechanism sucks out the oil on the water by sucking oil, and the recovery mechanism can be adaptively raised and lowered according to the height of the liquid level; a liquid storage tank 9, which is fixed to the top of the extraction tank 1, and a liquid inlet 10 and an oil outlet 11 are respectively provided on the upper left side and the lower right side of the liquid storage tank 9; a cylinder 12, which is installed on the top of the extraction tank 1 by bolts, and the liquid storage tank 9 is annularly sleeved on the outside of the cylinder 12, and a guide mechanism is installed on the output shaft of the cylinder 12, which crushes the petroleum residue by driving the crushing assembly to rotate, and a pressurizing assembly is installed on the side of the guide mechanism, and the pressure exerted by the pressurizing assembly can accelerate the discharge of oil in the petroleum residue.

[0039] The existing extraction equipment is not convenient to combine the crushing and extrusion of oil residues during the processing process. During the transmission of oil inside the device, some oil will adhere to the inner wall of the device, affecting the subsequent oil output. Figure 1-Figure 3 and Figure 8 As shown, the crushing assembly includes a movable rod 4 that rotates and passes through the bottom of the hopper 3, and crushing knives 5 of different lengths are installed at equal angles on the upper end of the movable rod 4, and the bottom of the movable rod 4 and the inner bottom surface of the extraction tank 1 are connected by a bearing, and the bottom of the hopper 3 is grid-shaped; the guiding mechanism includes a fixed cylinder 13 fixed to the output shaft of the cylinder 12, and the bottom of the fixed cylinder 13 is connected to a pressing plate 14, and the pressing plate 14 is connected to the connecting plate 16 through a magnetic ring 15, and the bottom of the fixed cylinder 13 is connected to a connecting cylinder 29; the connecting cylinder 29 and the fixed cylinder 13 are slidably connected, and the cross-section of the outer side of the connecting cylinder 29 is a rectangular structure, and the connecting cylinder 29 and the movable rod 4 are threadedly connected, and the top of the movable rod 4 is a twisted rod structure;

[0040] After the petroleum residue to be extracted is poured into the extraction tank 1 from the feed port 2, the petroleum residue is inside the receiving hopper 3, and then the cylinder 12 runs through the fixed cylinder 13 to drive the pressure plate 14 to descend, and then drives the connecting cylinder 29 to descend synchronously. When the connecting cylinder 29 contacts the top of the movable rod 4, the threaded transmission between the two can drive the movable rod 4 to rotate, and then drive the crushing knife 5 to rotate, so as to realize the crushing of the petroleum residue, which can improve the efficiency of petroleum extraction. By repeatedly raising and lowering the fixed cylinder 13, the movable rod 4 can be driven to rotate rapidly forward and backward to realize the comprehensive crushing of the petroleum residue, so that the petroleum can be extracted by pressurization later. After crushing, the pressure plate 14 rises and is adsorbed by the connecting plate 16 through the magnetic ring 15;

[0041] Example 2: The existing extraction equipment is not convenient for extracting oil and other substances separately. After the oil is extracted, it is easy to mix with other substances during the discharge process. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 4-Figure 5 As shown, the recovery mechanism includes a floating ring 6 disposed below the receiving hopper 3. The floating ring 6 is hollow, and an oil inlet hole 7 is reserved at an equal angle on its lower end surface. The cavity within the floating ring 6 is connected to the upper interior of the liquid storage tank 9 via a recovery pipe 8. When the connecting plate 16 descends, the guide rod 17 drives the fixed plate 18 to descend synchronously within the liquid storage tank 9. This creates a negative pressure in the liquid storage tank 9 above the fixed plate 18, generating suction. The squeezed oil and liquid flow through the receiving hopper 3 to the bottom of the extraction tank 1, with the oil floating on top and the liquid at the bottom. This drives the floating ring 6 to float on the oil surface, and the negative pressure draws the surface oil into the floating ring 6 through the oil inlet hole 7. The oil is then transported through the recovery pipe 8 into the liquid storage tank 9 above the fixed plate 18, achieving oil recovery. When the fixed plate 18 descends to its lowest point, the oil in the liquid storage tank 9 is discharged through the oil outlet 11, while the liquid on the bottom surface of the extraction tank 1 is discharged through the side channels.

[0042] Example 3: The existing extraction equipment uses the method of squeezing the oil residue to extract the oil. Since the residues are not in close contact and there are a lot of gaps, there are still a lot of residues after extraction, which affects the efficiency of oil extraction. Therefore, this embodiment adopts the following technical solutions, such as Figure 2 、 Figure 4 and Figure 6-Figure 8 As shown, the pressurizing assembly includes a connecting plate 16 arranged on the outside of the pressure plate 14, and the connecting plate 16 is an annular structure, and a guide rod 17 is fixed at an equal angle to the upper end surface of the connecting plate 16, and the end of the guide rod 17 away from the connecting plate 16 is connected to a fixing plate 18; the edge of the fixing plate 18 slides in contact with the inner wall of the liquid storage tank 9, and the bottom of the liquid storage tank 9 is connected to the fixing cavity 20 through an infusion hose 19, and the fixing cavity 20 is provided in the connecting plate 16, and a liquid spray nozzle 21 is installed at an equal angle on the lower end surface of the connecting plate 16;

[0043] After the petroleum residue is crushed, the oil remaining on the residue can be extracted. Therefore, the guide rod 17 is synchronously lowered by the connection plate 16, and the fixed plate 18 is pulled down in the liquid storage tank 9 by the guide rod 17, thereby squeezing the liquid in the liquid storage tank 9. Then, the liquid in the liquid storage tank 9 can be transmitted to the fixed cavity 20 through the infusion hose 19, and finally can be sprayed out from the liquid spray nozzle 21. In this way, the lowering of the connection plate 16 not only has the effect of applying gas pressure to the petroleum residue, but also can spray the liquid onto the petroleum residue, so that the oil in the residue can fully flow out and flow to the bottom of the extraction tank 1 for subsequent collection. When the fixed plate 18 is lowered, a negative pressure state is formed above it.

[0044] Example 4: After combining the crushing and extrusion of petroleum residue, the operation of the related structures will be hindered by each other, affecting the extraction of petroleum. Therefore, this embodiment adopts the following technical solutions, such as Figure 6 and Figure 8 As shown, a receiving mechanism is provided on the side of the guide mechanism, and the receiving mechanism can retract the connecting cylinder 29 when the connecting plate 16 descends, and push the connecting cylinder 29 out when the connecting plate 16 is fixed. The receiving mechanism includes electric push rods 22 fixedly mounted on both sides of the fixed cylinder 13, and a fixing block 23 is fixed on the connecting plate 16 at the output end of the electric push rod 22; a hole is opened on the top of the fixing block 23, and the hole on the fixing block 23 is engaged with the output shaft of the electric push rod 22, and the output end of one of the electric push rods 22 is fixedly connected to one end of the connecting rod 24, and the other end of the connecting rod 24 is connected to a rack 25; the side of the rack 25 is meshed with a gear 26, and the interior of the gear 26 is fixedly penetrated by a movable cylinder 27, and the top of the movable cylinder 27 and the inner top surface of the fixed cylinder 13 are rotatably connected, and the bottom thread of the movable cylinder 27 is penetrated by a screw rod 28, and the bottom of the screw rod 28 is fixed to the top of the connecting cylinder 29;

[0045] The pressing plate 14 can be lowered alone and can also drive the connecting plate 16 to be lowered synchronously. By the operation of the electric push rod 22, its output shaft extends through the hole on the fixed block 23, and the pressing plate 14 and the connecting plate 16 can be combined to apply pressure to the petroleum residue. After the two are separated, it is convenient for the pressing plate 14 to be lowered alone to crush the petroleum residue. When the output shaft of one of the electric push rods 22 is extended, the rack 25 can be driven to move synchronously through the connecting rod 24, and then the meshing transmission between the rack 25 and the gear 26 can drive the movable cylinder 27 to rotate. The movable cylinder 27 is connected to the movable cylinder 27 by the meshing transmission. The threaded transmission between the screw rod 28 can drive the connecting tube 29 to rise, so after the pressure plate 14 and the connecting plate 16 are combined, the connecting tube 29 can be driven to be stored in the fixed tube 13, so that the pressure plate 14 will not drive the connecting tube 29 to contact the movable rod 4 after it is lowered, and the crushing knife 5 will not rotate. When the electric push rod 22 is retracted, the combination of the pressure plate 14 and the connecting plate 16 can be released, and then through the meshing transmission between the rack 25 and the gear 26, and the threaded transmission between the movable tube 27 and the screw rod 28, the connecting tube 29 is driven to descend and extend out of the outside of the pressure plate 14, so as to facilitate subsequent contact with the movable rod 4.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A secondary extraction device for fine processing of petroleum residue, comprising an extraction tank (1), a feed port (2) provided on the side of the extraction tank (1), a receiving hopper (3) fixed inside the extraction tank (1), a crushing assembly provided inside the receiving hopper (3), and the crushing assembly capable of further crushing large pieces of petroleum residue; It is characterized in that include: A recovery mechanism is provided below the receiving hopper (3), and the recovery mechanism sucks out the oil on the water by means of oil suction, and the recovery mechanism can be adaptively raised and lowered according to the height of the liquid level; A liquid storage tank (9) is fixed on the top of the extraction tank (1), and a liquid inlet (10) and an oil outlet (11) are respectively provided on the upper left side and the lower right side of the liquid storage tank (9); The cylinder (12) is mounted on the top of the extraction tank (1) by bolts, the liquid storage tank (9) is annularly sleeved on the outside of the cylinder (12), and a guide mechanism is mounted on the output shaft of the cylinder (12), the guide mechanism drives the crushing assembly to rotate to crush the petroleum residue, and a pressurizing assembly is mounted on the side of the guide mechanism, and the pressure exerted by the pressurizing assembly can accelerate the discharge of petroleum in the petroleum residue; The recovery mechanism comprises a floating ring (6) arranged below the receiving hopper (3), and the floating ring (6) is hollow, and an oil inlet hole (7) is reserved at an equal angle on the lower end surface of the floating ring (6), and the cavity inside the floating ring (6) is connected to the upper part of the interior of the liquid storage tank (9) through a recovery pipe (8); The guide mechanism includes a fixed cylinder (13) fixed to the output shaft of the cylinder (12), and the bottom of the fixed cylinder (13) is connected to a pressure plate (14), and the pressure plate (14) is connected to the connecting plate (16) through a magnetic ring (15), and the bottom of the fixed cylinder (13) is connected to a connecting cylinder (29); The connecting tube (29) and the fixed tube (13) are slidably connected, and the cross-section of the outer side of the connecting tube (29) is a rectangular structure, and the connecting tube (29) and the movable rod (4) are threadedly connected, and the top of the movable rod (4) is a twisted rod structure; The pressurizing assembly includes a connecting plate (16) arranged outside the pressure plate (14), and the connecting plate (16) is an annular structure, and a guide rod (17) is fixed at an equal angle to the upper end surface of the connecting plate (16), and the end of the guide rod (17) away from the connecting plate (16) is connected to a fixing plate (18); A receiving mechanism is provided on the side of the guide mechanism, and the receiving mechanism can retract the connecting tube (29) when the connecting plate (16) descends, and push the connecting tube (29) out when the connecting plate (16) is fixed. The receiving mechanism includes an electric push rod (22) fixedly mounted on both sides of the fixed tube (13), and a fixed block (23) is fixed on the connecting plate (16) at the output end of the electric push rod (22). A hole is provided on the top of the fixed block (23), and the hole on the fixed block (23) is engaged with the output shaft of the electric push rod (22).

2. The secondary extraction equipment for petroleum residue refining according to claim 1, characterized in that: The crushing assembly includes a movable rod (4) that rotates and passes through the bottom of the receiving hopper (3), and crushing knives (5) of different lengths are installed at equal angles on the upper end of the movable rod (4), and the bottom of the movable rod (4) and the inner bottom surface of the extraction tank (1) are connected by a bearing, and the bottom of the receiving hopper (3) is grid-shaped.

3. The secondary extraction equipment for refined petroleum residue according to claim 1, characterized in that: The edge of the fixed plate (18) is fitted and slidably connected to the inner wall of the liquid storage tank (9), and the bottom of the liquid storage tank (9) is connected to the fixed cavity (20) through the infusion hose (19), and the fixed cavity (20) is arranged in the connecting plate (16). At the same time, the lower end surface of the connecting plate (16) is provided with a liquid spray nozzle (21) at an equal angle.

4. The secondary extraction equipment for refined petroleum residue according to claim 1, characterized in that: The output end of one of the electric push rods (22) is fixedly connected to one end of the connecting rod (24), and the other end of the connecting rod (24) is connected to a rack (25).

5. The secondary extraction equipment for refined petroleum residue according to claim 4, characterized in that: The side of the rack (25) is meshedly connected with a gear (26), and a movable cylinder (27) is fixedly passed through the interior of the gear (26), and the top of the movable cylinder (27) and the inner top surface of the fixed cylinder (13) are rotatably connected. At the same time, a screw rod (28) is passed through the bottom thread of the movable cylinder (27), and the bottom of the screw rod (28) is fixed to the top of the connecting cylinder (29).

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