A solid-liquid separation device for petroleum refining

Abstract

The present invention belongs to the technical field of petrochemical refining equipment, and specifically relates to a solid-liquid separation device for petroleum refining. The traditional method of filtering solid impurities in petroleum has a relatively poor filtering effect, and it is difficult to clean the solid impurities from the inside of the filter, which affects the subsequent supply and demand of petroleum refining and reduces the production efficiency of petroleum products. Therefore, the present invention provides power for the filtering component by arranging a driving component in the housing, enabling the filtering component to rotate in the housing, and performing rotary filtration on the petroleum entering the filtering component, so as to filter out the solid impurities contained in the petroleum more quickly from the petroleum, achieving the effect of accelerating filtration and improving the production efficiency of petroleum products.

Description

Technical Field

[0001] The present invention belongs to the technical field of petrochemical refining equipment, and specifically relates to a solid-liquid separation device for petroleum refining. Background Art

[0002] Petroleum is a process of distilling crude oil or other oils without changing the molecular structure. Since, during the petroleum refining process, crude oil must go through a series of process steps to obtain various useful petroleum products. Generally, it refers to petroleum refining, that is, cracking crude oil and the like into fuels such as kerosene, gasoline, diesel, and heavy oil that meet the requirements of internal combustion engines, and producing chemical raw materials such as olefins and aromatics. Currently, general refineries are oil-chemical integrated refineries. During the petroleum refining process, solid impurities are generated. Since petroleum is a viscous and adhesive liquid.

[0003] Traditional methods for filtering solid impurities in petroleum are static settling or filtering with a filter. However, the static settling method takes too long and affects the subsequent production efficiency of petroleum products. Existing filters generally use horizontal equal-diameter centrifugal filtration. The centrifugal force at the filter screen is not large enough, making it easy for solid impurities to adhere to the filter screen, resulting in a relatively poor filtering effect. Moreover, it is difficult to clean the solid impurities from the inside of the filter, affecting the subsequent supply and demand of petroleum refining and reducing the production efficiency of petroleum products.

[0004] In view of this, in order to overcome the above technical problems, the present invention is designed and developed a solid-liquid separation device for petroleum refining, which solves the above technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that traditional methods for filtering solid impurities in petroleum are static settling or filtering with a filter. However, the static settling method takes too long and affects the subsequent production efficiency of petroleum products. Existing filters generally use horizontal equal-diameter centrifugal filtration. The centrifugal force at the filter is not large enough, making it easy for solid impurities to adhere to the filter, resulting in a relatively poor filtering effect. Moreover, it is difficult to clean the solid impurities from the inside of the filter, affecting the subsequent supply and demand of petroleum refining and reducing the production efficiency of petroleum products.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A solid-liquid separation device for petroleum refining provided by the present invention includes a housing and support columns, and further includes:

[0008] A filtering component, which is arranged inside the housing and filters the petroleum entering the housing;

[0009] A driving component, which is arranged inside the housing and provides power for the filtering component.

[0010] Preferably, the filtering component includes a conical filtering chamber disposed within the housing;

[0011] An annular screen, disposed at the upper end of the conical filtering chamber;

[0012] A feed pipe, fixedly connected to one side of the housing, and one end thereof extends into the housing and communicates with the bottom of the conical filtering chamber;

[0013] A valve, a part of the rotating shaft of the valve is fixed to the feed pipe outside the housing through a first bearing;

[0014] A discharge pipe, one end thereof is circularly wrapped around the top of the conical filtering chamber and the annular screen, and the other end extends out of the housing from the side wall of the other end of the housing;

[0015] An impurity pipe, fixedly connected to the bottom of the housing, and one end extending into the housing shares a pipe wall with the feed pipe;

[0016] A gear set, the gear set includes three gears with exactly the same shape and size meshed in a row, and is disposed at the end of the shared pipe wall where the feed pipe and the impurity pipe are connected to the bottom of the conical filtering chamber;

[0017] A first baffle, fixedly connected to the gear on the side of the gear set close to the feed pipe;

[0018] A second baffle, fixedly connected to the gear on the side of the gear set close to the impurity pipe;

[0019] A second bearing, fixedly connected to the side wall of the housing close to the middle gear of the gear set;

[0020] A first rotating shaft, one end thereof is fixedly connected to the middle gear of the gear set, and the other end passes through the second bearing and extends to the outside of the housing;

[0021] A knob, fixedly connected to the end of the first rotating shaft extending out of the housing.

[0022] Preferably, the driving component includes a motor disposed on the top of the housing;

[0023] A first bevel gear, fixedly connected to the end of the transmission part of the motor;

[0024] A third bearing, fixedly connected to the upper end of the housing near the first bevel gear;

[0025] A fourth bearing, fixedly connected to the circular end of the discharge pipe;

[0026] A second rotating shaft; one end is located outside the upper end of the housing, and the other end passes through the third bearing and the fourth bearing and extends to the conical filtering chamber;

[0027] A second bevel gear, fixedly connected to the end of the second rotating shaft located outside the upper end of the housing, and meshed with the first bevel gear;

[0028] The first fixing rod, one end of the two first fixing rods is fixedly connected to the second rotating shaft, and the other end is fixedly connected to the annular sieve;

[0029] The third bevel gear is fixedly connected to one end of the second rotating shaft located at the end of the conical filter chamber;

[0030] The auger is arranged in the conical filter chamber, and a fourth bevel gear is fixedly connected to the upper end;

[0031] The fifth bevel gear is perpendicular to the third bevel gear and the fourth bevel gear, and meshes with the third bevel gear and the fourth bevel gear;

[0032] The second fixing rod, one end of the multiple second fixing rods is fixedly connected to the inner side wall of the housing, and the other end is fixedly connected to the outer side wall of the conical filter chamber;

[0033] The chute, multiple chutes are opened on the inner side wall of the conical filter chamber;

[0034] The third fixing rod, one end of the multiple third fixing rods is fixedly connected to the auger, and the other end is respectively fixedly connected with a pulley;

[0035] The brush, one end of the multiple brushes is placed in the chute, and the other end is fixedly connected to one side of the third fixing rod fixedly connected with the pulley through a bushing. Two brushes are respectively fixedly connected to one third fixing rod through bushings, and are respectively located at the front and rear ends of the pulley.

[0036] Preferably, a polytetrafluoroethylene coating is provided on the surfaces of all components in the conical filter chamber.

[0037] Preferably, the diameters of the blades on the auger gradually increase from bottom to top.

[0038] Preferably, a static settling tank is provided at the bottom of the housing; the impurity pipeline passes through the bottom of the housing and is communicated with the static settling tank.

[0039] Preferably, a discharge pipe is provided at the bottom of the static settling tank; a filter screen is provided at the connection of the discharge pipe and the static settling tank; the other end of the discharge pipe is communicated with the discharge pipe; the height of the bottom of the static settling tank is higher than the height of the discharge pipe placed on the ground.

[0040] Preferably, the annular sieve is closely attached to the inner walls of the top of the conical filter chamber and the top of the discharge pipe.

[0041] Preferably, the cross-sectional shapes of the feed pipe and the impurity pipeline at the gear set are square; and the cross-sectional dimensions of the feed pipe and the impurity pipeline at the gear set are respectively exactly the same as those of the first baffle and the second baffle.

[0042] Preferably, a protrusion is provided at the lower end of the inner side of the pipe wall of the first baffle pointing vertically to the feed pipe and at the lower end of the inner side of the pipe wall of the second baffle pointing vertically to the impurity pipe respectively.

[0043] The beneficial effects of the present invention are as follows:

[0044] 1. A solid-liquid separation device for petroleum refining provided by the present invention, by arranging a driving component and a filtering component in the shell, the driving component provides power for the filtering component, so that the filtering component rotates in the shell, rotates and filters the petroleum entering the filtering component, and filters out the solid impurities contained in the petroleum from the petroleum more quickly, achieving the effect of accelerating filtration and improving the production efficiency of petroleum products.

[0045] 2. A solid-liquid separation device for petroleum refining provided by the present invention, by arranging an auger with blades gradually increasing from bottom to top in the conical filtering chamber, while rotating, using the upward pushing force of the auger to push the petroleum to the annular screen at the top of the conical filtering chamber, and making the petroleum obtain a greater centrifugal force at a larger rotation radius, so as to achieve the effect of quickly filtering out solid impurities in the petroleum. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below with reference to the accompanying drawings.

[0047] Figure 1 is the main sectional view of the present invention;

[0048] Figure 2 is the top view schematic diagram of the connection between the top of the conical filtering chamber and the annular screen of the present invention;

[0049] Figure 3 is the schematic diagram of the connection relationship between the motor and the second rotating shaft of the present invention;

[0050] Figure 4 is the schematic diagram of the connection relationship between the second rotating shaft and the auger of the present invention;

[0051] Figure 5 is the schematic diagram of the connection relationship between the gear set and the external knob of the shell of the present invention;

[0052] Figure 6 is the schematic diagram of the connection relationship between the valve and the pipeline of the present invention;

[0053] Figure 7 is the front view schematic diagram of the pulley, the brush and the third rotating shaft of the present invention.

[0054] In the figure: motor 1, first bevel gear 2, third bearing 3, housing 4, annular screen 5, first fixing rod 6, second fixing rod 7, conical filter chamber 8, auger 9, feed pipe 10, valve 11, support column 12, settling pond 13, discharge pipe 14, impurity pipe 15, outlet pipe 16, first bearing 17, protrusion 18, gear set 19, first baffle 20, second baffle 21, first rotating shaft 22, fourth bearing 23, second rotating shaft 24, second bevel gear 25, third bevel gear 26, fifth bevel gear 27, fourth bevel gear 28, second bearing 29, knob 30, filter screen 31, third fixing rod 32, pulley 33, brush 34, bushing 35, chute 36. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0056] The embodiments of the present invention provide a solid-liquid separation device for petroleum refining, which solves the problems in the prior art that the traditional methods for filtering solid impurities in petroleum are static settling or filtration by a filter. However, the static settling method takes too long, affecting the subsequent production efficiency of petroleum products. Existing filters generally use horizontal equal-diameter centrifugal filtration, and the centrifugal force at the filter is not large enough, which easily causes solid impurities to adhere to the filter, resulting in poor filtration effect. Moreover, it is difficult to clean the solid impurities from the inside of the filter, affecting the supply and demand of subsequent petroleum refining and reducing the production efficiency of petroleum products.

[0057] The technical solutions in the embodiments of the present invention to solve the above technical problems are generally as follows: By arranging a driving component and a filtering component in the housing 4, the driving component provides power for the filtering component, so that the filtering component rotates in the housing 4 to perform rotational filtration on the petroleum entering the filtering component, and quickly filter out the solid impurities contained in the petroleum from the petroleum, achieving the effect of accelerating filtration and improving the production efficiency of petroleum products.

[0058] To make the technical means, creative features, achieved objectives and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0059] The present invention provides a solid-liquid separation device for petroleum refining, including a housing 4 and a support column 12, and further including:

[0060] A filtering component, which is arranged in the housing 4 and filters the petroleum entering the housing 4;

[0061] A driving component, which is arranged in the housing 4 and provides power for the filtering component.

[0062] The traditional method for filtering solid impurities in petroleum is to use the static method or filter through a filter. However, the static method takes too long and affects the subsequent production efficiency of petroleum products. Existing filters generally use horizontal equal-diameter centrifugal filtration. The centrifugal force at the filter is not large enough, which easily causes solid impurities to adhere to the filter, resulting in a relatively poor filtering effect. Moreover, it is difficult to clean the solid impurities from the inside of the filter, affecting the supply and demand of subsequent petroleum refining and reducing the production efficiency of petroleum products. Therefore, in the present invention, a driving component and a filtering component are arranged in the housing 4. The driving component provides power for the filtering component, causing the filtering component to rotate in the housing 4, and rotatingly filtering the petroleum entering the filtering component to more quickly filter out the solid impurities contained in the petroleum, achieving the effect of accelerating filtration and improving the production efficiency of petroleum products.

[0063] As a specific embodiment of the present invention, the filtering component includes a conical filtering chamber 8 arranged in the housing 4;

[0064] An annular screen 5, arranged at the upper end of the conical filtering chamber 8;

[0065] A feed pipe 10, fixedly connected to one side of the housing 4, and one end extends into the housing 4 and communicates with the bottom of the conical filtering chamber 8;

[0066] A valve 11, and a part of the rotating shaft of the valve 11 is fixed to the feed pipe 10 outside the housing 4 through a first bearing 17;

[0067] A discharge pipe 16, one end is circularly wrapped around the top of the conical filtering chamber 8 and the annular screen 5, and the other end extends out of the housing 4 from the side wall of the other end of the housing 4;

[0068] An impurity pipe 15, fixedly connected to the bottom of the housing 4, and one end extending into the housing 4 shares a pipe wall with the feed pipe 10;

[0069] A gear set 19, which includes three gears with exactly the same shape and size meshed in a row, and is arranged at the end of the shared pipe wall where the feed pipe 10 is connected to the impurity pipe 15 and leads to the bottom of the conical filtering chamber 8;

[0070] A first baffle 20, fixedly connected to the gear on the side of the gear set 19 close to the feed pipe 10;

[0071] A second baffle 21, fixedly connected to the gear on the side of the gear set 19 close to the impurity pipe 15;

[0072] The second bearing 29 is fixedly connected to the side wall of the housing 4 near the intermediate gear of the gear set 19;

[0073] The first rotating shaft 22 has one end fixedly connected to the intermediate gear of the gear set 19 and the other end extending outside the housing 4 through the second bearing 29;

[0074] The knob 30 is fixedly connected to the end of the first rotating shaft 22 extending out of the housing 4.

[0075] In the present invention, a conical filter chamber 8 with a wider top and a narrower bottom is vertically arranged in a housing 4. An annular screen 5 is provided between the top of the conical filter chamber 8 and the inner wall of the top end of the discharge pipe 16. When the petroleum containing solid impurities reaches the annular screen 5 at the top of the conical filter chamber 8, the pure petroleum passes through the annular screen 5 and enters the discharge pipe 16, while the solid impurities are filtered out by the annular screen 5 and remain in the conical filter chamber 8. The other end of the discharge pipe 16 passes through the housing 4 and falls to the ground. A feed pipe 10 and an impurity pipe 15 are fixedly connected to the bottom of the conical filter chamber 8 respectively. The end walls of the feed pipe 10 and the impurity pipe 15 share a common wall. The other end of the feed pipe 10 extends out from the side wall of the housing 4, and the impurity pipe 15 vertically passes through the housing 4 and extends towards the ground. A valve 11 is provided on the feed pipe 10 outside the housing 4. The rotating part of the valve 11 is fixed to the side wall of the feed pipe 10 through a first bearing 17. By rotating the valve 11 outside the feed pipe 10, the flow rate of the petroleum entering the conical filter chamber 8 is controlled. A gear set 19 is provided at the end of the common wall where the feed pipe 10 and the impurity pipe 15 are connected to the bottom of the conical filter chamber 8. A first baffle 20 is provided on the gear of the gear set 19 close to the impurity pipe 15, and a second baffle 21 is provided on the gear of the gear set 19 close to the impurity pipe 15. A second bearing 29 is provided on the side wall of the housing 4 close to the middle gear of the gear set 19. A first rotating shaft 22 is fixedly connected to the middle gear of the gear set 19. The other end of the first rotating shaft 22 passes through the second bearing 29 and is fixedly connected to a knob 30 arranged outside the housing 4;Compared with the traditional way of laying the filtration chamber flat, placing the conical filtration chamber 8 vertically in the present invention can increase the solid-liquid separation effect. When the petroleum moves towards the top of the conical filtration chamber 8 along the auger 9, the solid impurities move upward relatively slowly compared to the petroleum. This can prevent too many solid impurities from adhering to the annular screen 5 at one time and affecting the filtration effect. At the same time, the design of the upper-wide and lower-narrow cone shape can ensure that the petroleum at the bottom of the conical filtration chamber 8 does not perform a centrifugal motion with too high a rotational speed when moving upward under the push of the auger 9, ensuring that most of the impurities in the petroleum are still close to the rotation axis of the auger 9. As the petroleum gradually reaches the top of the conical filtration chamber 8, at a constant rotational speed of the auger 9, the movement speed of the petroleum near the edge of the conical filtration chamber 8 becomes faster and faster. Finally, when it reaches the annular screen 5, the movement speed of the petroleum reaches the maximum. At a high flow rate, the petroleum can easily pass through the annular screen 5, and it is also difficult for the solids to adhere to the annular screen 5 under the scouring of the high-flow petroleum. Thus, it can ensure that the annular screen 5 remains clean and unblocked during long-term use. After opening the valve 11, the petroleum containing solid impurities enters from the feed pipe 10. Rotate the knob 30, and the knob 30 drives the middle gear of the gear set 19 to rotate 90° through the first rotating shaft 22. When the middle gear rotates counterclockwise, the gear meshing with it on the left rotates clockwise, thereby driving the first baffle 20 fixedly connected to the left gear to rotate 90° clockwise, opening the feed pipe 10. The petroleum passes through the first baffle 20 from the feed pipe 10 and enters the conical filtration chamber 8. At the same time, the gear meshing with the middle gear on the right also rotates clockwise, driving the second baffle 21 fixedly connected to the right gear to rotate 90° clockwise, closing the impurity pipe 15.;

[0076] As a specific embodiment of the present invention, the driving assembly includes a motor 1 provided at the top of the housing 4;

[0077] The first bevel gear 2 is fixedly connected to the end of the transmission part of the motor 1;

[0078] The third bearing 3 is fixedly connected to the upper end of the housing 4 near the first bevel gear 2;

[0079] The fourth bearing 23 is fixedly connected to the circular ring end of the discharge pipe 16;

[0080] The second rotating shaft 24; one end is located outside the upper end of the housing 4, and the other end passes through the third bearing 3 and the fourth bearing 23 and extends into the conical filtration chamber 8;

[0081] The second bevel gear 25 is fixedly connected to one end of the second rotating shaft 24 located outside the upper end of the housing 4 and meshes with the first bevel gear 2;

[0082] Two first fixing rods 6, one end of each of the two first fixing rods 6 is fixedly connected to the second rotating shaft 24, and the other end is fixedly connected to the annular screen 5;

[0083] The third bevel gear 26 is fixedly connected to one end of the second rotating shaft 24 located at the end of the conical filter chamber 8;

[0084] The auger 9 is arranged in the conical filter chamber 8, and a fourth bevel gear 28 is fixedly connected to the upper end;

[0085] The fifth bevel gear 27 is perpendicular to the third bevel gear 26 and the fourth bevel gear 28, and meshes with the third bevel gear 26 and the fourth bevel gear 28;

[0086] A plurality of the second fixing rods 7, one end of each of the plurality of second fixing rods 7 is fixedly connected to the inner side wall of the housing 4, and the other end is fixedly connected to the outer side wall of the conical filter chamber 8;

[0087] The sliding grooves 36, a plurality of sliding grooves 36 are formed on the inner side wall of the conical filter chamber 8;

[0088] A plurality of the third fixing rods 32, one end of each of the plurality of third fixing rods 32 is fixedly connected to the auger 9, and the other end is fixedly connected to a pulley 33 respectively;

[0089] The brush 34, one end of each of the plurality of brushes 34 is placed in the sliding groove 36, and the other end is fixedly connected to one side of the third fixing rod 32 fixedly connected to the pulley 33 through a bushing 35. Two brushes 34 are fixedly connected to one third fixing rod 32 through bushings 35 respectively, and are located at the front and rear ends of the pulley 33 respectively.

[0090] In the present invention, a motor 1 is provided at the top of the housing 4. The end of the rotating part of the motor 1 is provided with a first bevel gear 2. At the same time, a third bearing 3 is provided near the first bevel gear 2 at the upper end of the housing 4. A fourth bearing 23 is provided at the circular ring end of the discharge pipe 16 directly below the third bearing 3. A second rotating shaft 24 has one end fixedly connected with a second bevel gear 25, and the second bevel gear 25 meshes with the first bevel gear 2. The second rotating shaft 24 passes through the third bearing 3 and the fourth bearing 23 and extends into the other end of the conical filter chamber 8 and is fixedly connected with a third bevel gear 26. An auger 9 is arranged in the conical filter chamber 8. The upper end of the auger 9 is fixedly connected with a fourth bevel gear 28. A fifth bevel gear 27 perpendicular to the third bevel gear 26 and the fourth bevel gear 28 is arranged between the third bevel gear 26 and the fourth bevel gear 28. The upper end of the fifth bevel gear 27 meshes with the third bevel gear 26, and the lower end of the fifth bevel gear 27 meshes with the fourth bevel gear 28. When the second rotating shaft 24 drives the third bevel gear 26 to rotate clockwise from a top view angle, the fifth bevel gear 27 meshing with the third bevel gear 26 rotates Figure 4 clockwise at an angle, and the fifth bevel gear 27 rotates Figure 4When the angle of rotation is clockwise, the fourth bevel gear 28 meshing with the lower end of the fifth bevel gear 27 rotates counterclockwise at a top-view angle. Because the second rotating shaft 24 fixedly connected to the third bevel gear 26 is fixedly connected to the annular screen 5 through the first fixing rod 6, and the auger 9 is fixedly connected to the fourth bevel gear 28, the annular screen 5 rotates clockwise at a top-view angle driven by the second rotating shaft 24 through the first fixing rod 7, and the auger 9 rotates counterclockwise at a top-view angle driven by the fourth bevel gear 28, forming an effect of reversing the second rotating shaft 24 and the auger 9, and the second fixing rod 7 and the conical filter chamber are provided on the inner wall of the shell 4. 8 is fixedly connected to the outer wall. In the case of coaxial reversal, the annular screen 5 and the auger 9 rotate in opposite directions. The reversed annular screen 5 provides different tangential forces to the oil transported to the top, so that the annular screen 5 has a screening effect relative to the oil, thereby improving the filtering effect of the annular screen 5 on solid impurities in the oil. At the same time, it also prevents the impurities and solids from adhering to the annular screen 5 as much as possible under high flow rate. Because the upper end of the auger 9 is meshed with a bevel gear and the lower end is suspended without a support point, a plurality of No. 3 fixing rods 32 are fixedly connected to the auger 9, and a conical filter chamber 8 inner wall flush with the plurality of No. 3 fixing rods 32 is provided with a plurality of No. 3 fixing rods 32. The plurality of No. 3 fixing rods 32 are provided with a plurality of chute grooves 36 of the same number, and a pulley 33 is fixedly connected to the other end of each of the plurality of No. 3 fixing rods 32, and the pulley 33 is just located in the chute groove 36. Considering that the conical filter chamber 8 of the present invention contains oil and solid impurities, if not cleaned in time, it will affect the rotation of the pulley 33, so two brushes 34 are fixedly connected to the side of the plurality of No. 3 fixing rods 32 close to the pulley 33 through the shaft sleeve 35, and one end of the bristles of the plurality of brushes 34 are all placed in the chute groove 36, and the positions of the two brushes 34 fixedly connected to the same No. 3 fixing rod 32 in the chute groove 36 are located at the front and rear ends of the pulley 33; After the valve 11 is opened and the oil enters the conical filter chamber 8 from the feed pipe 10, the motor 1 is started. The motor 1 drives the No. 2 rotating shaft 24 to rotate, and the No. 2 rotating shaft 24 drives the annular screen 5 to rotate. At the same time, the No. 3 bevel gear 26, the No. 4 bevel gear 28 and the No. 5 bevel gear 27 are engaged to drive the auger 9 to rotate in the opposite direction. The auger 9 drives the oil to rotate in the opposite direction relative to the annular screen 5. At the same time, the auger 9 also has an upward driving force on the oil. The centrifugal force reaches the maximum at the top of the truncated cone, and the annular screen 5 rotates in the opposite direction to the auger 9, so as to achieve the effect of efficiently filtering solid impurities in the oil, and at the same time, it also avoids the solid impurities adhering to the annular screen 5.

[0091] As a specific implementation of the present invention, the surfaces of the components in the conical filter chamber 8 are provided with polytetrafluoroethylene coating.

[0092] In the present invention, considering that petroleum is a viscous and adhesive liquid, the materials in the conical filtration chamber 8 need to have a small coefficient of friction, but the strength cannot be too low. Therefore, a polytetrafluoroethylene coating is provided on the surfaces of all components in the conical filtration chamber 8. Polytetrafluoroethylene is a white, odorless, tasteless, and non-toxic powder, commonly known as the "king of plastics", which has excellent chemical stability, corrosion resistance, sealing performance, high lubricity and non-stickiness, electrical insulation, and good anti-aging endurance. It can effectively prevent the components in the conical filtration chamber 8 from being adhered by petroleum and affecting the filtration effect.

[0093] As a specific embodiment of the present invention, the diameters of the blades on the auger 9 gradually increase from bottom to top.

[0094] In the present invention, considering that the inside of the conical filtration chamber 8 is from small to large, if the auger 9 is to generate an upward driving force on the petroleum, an auger 9 with the same-sized blades cannot be installed. According to the requirements of the present invention, the blades of the auger 9 are set to have the same inner diameter as the corresponding conical filtration chamber 8, so that the diameter of the auger 9 is adapted to the conical filtration chamber 8. In this way, when the auger 9 drives the conical filtration chamber 8 to rotate, the petroleum entering the conical filtration chamber 8 moves towards the top of the conical filtration chamber 8 under the push of the blades of the auger 9, and the gradually increasing blades ensure that all the petroleum can be pushed to the top of the conical filtration chamber 8 as much as possible, passing through the annular screen 5 to leave solid impurities.

[0095] As a specific embodiment of the present invention, a settling tank 13 is provided at the bottom of the housing 4; the impurity pipeline 15 passes through the bottom of the housing 4 and communicates with the settling tank 13.

[0096] In the present invention, considering that petroleum is relatively viscous and has a certain adhesiveness, a part of the petroleum will be discharged when the solid impurities are discharged from the impurity pipeline 15. To avoid waste of petroleum, a stationary tank is fixedly connected to the other end of the impurity pipeline 15, and the petroleum carried out can be slowly settled out in the settling tank 13 for recycling.

[0097] As a specific embodiment of the present invention, a discharge pipe 14 is provided at the bottom of the settling tank 13; a filter screen 31 is provided at the connection of the discharge pipe 14 and the settling tank 13; the other end of the discharge pipe 14 communicates with the discharge pipe 16; the bottom height of the settling tank 13 is higher than the height of the discharge pipe 16 placed on the ground.

[0098] The present invention is provided with a discharge pipe 14 at the bottom of the settling tank 13. A filter screen 31 is provided at the connection between the discharge pipe 14 and the settling tank 13. At the same time, the other end of the discharge pipe 14 is communicated with the discharge pipe 16. The bottom of the settling tank 13 is set relatively high, and the discharge pipe 14 is set parallel to the ground, while the discharge pipe 16 is set to be laid on the ground. Since the amount of petroleum in the discharge pipe 14 is relatively small, the pipe orifice of the discharge pipe 14 is higher than the bottom of the discharge pipe 16 when the discharge pipe 14 is communicated with the discharge pipe 16, which can prevent petroleum from flowing back into the discharge pipe 14 from the discharge pipe 16.

[0099] As a specific embodiment of the present invention, the annular screen 5 is closely attached to the inner walls of the top of the conical filter chamber 8 and the top of the discharge pipe 16.

[0100] In the present invention, the upper and lower ends of the annular screen 5 are respectively closely attached to the inner walls of the top of the conical filter chamber 8 and the top of the discharge pipe 16, but are not fixedly connected. Only the gap is so small that petroleum components cannot pass through. The annular screen 5 can still rotate under the drive of the second rotating shaft 24. In this way, when petroleum reaches the top of the conical filter chamber 8, it can only pass through the annular screen 5 and leave solid impurities.

[0101] As a specific embodiment of the present invention, the cross-sectional shapes of the feed pipe 10 and the impurity pipe 15 at the gear set 19 are square; and the cross-sectional dimensions of the feed pipe 10 and the impurity pipe 15 at the gear set 19 are exactly the same as those of the first baffle 20 and the second baffle 21 respectively.

[0102] In the present invention, considering that the first baffle 20 and the second baffle 21 can completely block the feed pipe 10 and the impurity pipe 15, the feed pipe 10 and the impurity pipe 15 at the gear set 19 are set to be square, and the cross-sectional shape and size of the feed pipe 10 and the impurity pipe 15 here are exactly the same as those of the first baffle 20 and the second baffle 21 respectively.

[0103] As a specific embodiment of the present invention, convex portions 18 are fixedly connected to the mutually remote ends of the feed pipe 10 and the impurity pipe 15; the upper surfaces of the convex portions 18 are flush with the axis of the gear set.

[0104] In consideration that the required rotation angles of the first baffle 20 and the second baffle 21 are only 90°, in order to prevent the situation where both the discharge pipe 16 and the impurity pipe 15 are opened due to excessive rotation angles, convex portions 18 are fixedly connected to the mutually remote ends of the feed pipe 10 and the impurity pipe 15; the upper surfaces of the convex portions 18 are flush with the axis of the gear set, and are respectively used to limit the first baffle 18 and the second baffle 21, so that after the first baffle 20 and the second baffle 21 rotate 90°, they will be blocked by the convex portions 18 and cannot continue to rotate. At the same time, after the situation where rotation cannot continue occurs, it is also possible to determine whether the first baffle 20 and the second baffle 21 are fully opened or closed.

[0105] Working principle: The traditional methods for filtering solid impurities in petroleum are the static method or filter filtration. However, the static method takes too long and affects the subsequent production efficiency of petroleum products. Existing filters are generally horizontal equal-diameter centrifugal filters, and the centrifugal force at the filter is not large enough, which easily causes solid impurities to adhere to the filter, resulting in poor filtering effect, and it is difficult to clean the solid impurities from the inside of the filter, affecting the supply and demand of subsequent petroleum refining and reducing the production efficiency of petroleum products. Therefore, in the present invention, a driving component and a filtering component are arranged in the housing 4, and the driving component provides power for the filtering component, so that the filtering component rotates in the housing 4 to perform rotary filtration on the petroleum entering the filtering component, and the solid impurities contained in the petroleum are filtered out more quickly from the petroleum, achieving the effect of accelerating filtration and improving the production efficiency of petroleum products.

[0106] In the present invention, a conical filtering chamber 8 that is wider at the top and narrower at the bottom is vertically arranged in a housing 4. An annular screen 5 is provided between the top end of the conical filtering chamber 8 and the inner wall of the top end of the discharge pipe 16. When the petroleum containing solid impurities reaches the annular screen 5 at the top of the conical filtering chamber 8, the pure petroleum passes through the annular screen 5 and enters the discharge pipe 16, and the solid impurities are filtered out by the annular screen 5 and remain in the conical filtering chamber 8. The other end of the discharge pipe 16 passes through the housing 4 and falls to the ground. A feed pipe 10 and an impurity pipe 15 are fixedly connected to the bottom of the conical filtering chamber 8 respectively. The end walls of the feed pipe 10 and the impurity pipe 15 share a common wall. The other end of the feed pipe 10 extends out from the side wall of the housing 4, and the impurity pipe 15 vertically passes through the housing 4 and extends towards the ground. A valve 11 is provided on the feed pipe 10 outside the housing 4. The rotating part of the valve 11 is fixed to the side wall of the feed pipe 10 through a first bearing 17. The flow rate of the petroleum entering the conical filtering chamber 8 is controlled by rotating the valve 11 part outside the feed pipe 10. A gear set 19 is provided at the end of the common wall where the feed pipe 10 is connected to the impurity pipe 15 and leads to the bottom of the conical filtering chamber 8. A first baffle 20 is provided on the gear of the gear set 19 close to the impurity pipe 15, and a second baffle 21 is provided on the gear of the gear set 19 close to the impurity pipe 15. A second bearing 29 is provided on the side wall of the housing 4 close to the middle gear of the gear set 19. A first rotating shaft 22 is fixedly connected to the middle gear of the gear set 19. The other end of the first rotating shaft 22 passes through the second bearing 29 and is fixedly connected to a knob 30 arranged outside the housing 4. A motor 1 is provided at the top of the housing 4. A first bevel gear 2 is provided at the end of the rotating part of the motor 1. At the same time, a third bearing 3 is provided at the upper end of the housing 4 close to the first bevel gear 2. A fourth bearing 23 is provided at the bottom of the circular end of the discharge pipe 16 directly below the third bearing 3. A second rotating shaft 24 has one end fixedly connected to a second bevel gear 25, and the second bevel gear 25 meshes with the first bevel gear 2. The second rotating shaft 24 passes through the third bearing 3 and the fourth bearing 23, and the other end extending into the conical filtering chamber 8 is fixedly connected to a third bevel gear 26. An auger 9 is provided in the conical filtering chamber 8. The upper end of the auger 9 is fixedly connected to a fourth bevel gear 28. A fifth bevel gear 27 perpendicular to the third bevel gear 26 and the fourth bevel gear 28 is provided between the third bevel gear 26 and the fourth bevel gear 28. The upper end of the fifth bevel gear 27 meshes with the third bevel gear 26, and the lower end of the fifth bevel gear 27 meshes with the fourth bevel gear 28. When the second rotating shaft 24 drives the third bevel gear 26 to rotate clockwise from a top view angle, the fifth bevel gear 27 meshing with the third bevel gear 26 rotates Figure 4 in a clockwise angle, and the fifth bevel gear 27 rotates at Figure 4When the angle of rotation is clockwise, the fourth bevel gear 28 meshing with the lower end of the fifth bevel gear 27 rotates counterclockwise at a top-view angle. Because the second rotating shaft 24 fixedly connected to the third bevel gear 26 is fixedly connected to the annular screen 5 through the first fixing rod 6, and the auger 9 is fixedly connected to the fourth bevel gear 28, the annular screen 5 rotates clockwise at a top-view angle driven by the second rotating shaft 24 through the first fixing rod 7, and the auger 9 rotates counterclockwise at a top-view angle driven by the fourth bevel gear 28, forming a reversal effect of the No. 2 rotating shaft 24 and the auger 9. A No. 2 fixing rod 7 is provided on the inner wall of the shell 4 and is fixedly connected to the outer wall of the conical filter chamber 8. In a similar coaxial reversal, the annular screen 5 and the auger 9 rotate in opposite directions. The reversed annular screen 5 provides different tangential forces to the petroleum transported to the top, so that the annular screen 5 has a screening effect relative to the petroleum, thereby improving the filtering effect of the annular screen 5 on solid impurities in the petroleum. Under high flow rate, the situation of impurity solids adhering to the annular screen 5 is prevented as much as possible. Because the upper end of the auger 9 is meshed with a bevel gear and the lower end is suspended without a support point, a plurality of No. 3 fixing rods 32 are fixedly connected to the auger 9, and a plurality of chute 36 with the same number as the No. 3 fixing rod 32 is opened on the inner wall of the conical filter chamber 8 flush with the plurality of No. 3 fixing rods 32. At the same time, a pulley 33 is fixedly connected to the other end of the plurality of No. 3 fixing rods 32, and the pulley 33 is just located in the chute 36. Considering that the conical filter chamber 8 in the present invention contains oil and solid impurities, if it is not cleaned in time, it will affect the rotation of the pulley 33. Therefore, two brushes 34 are fixedly connected to the side of the plurality of No. 3 fixing rods 32 close to the pulley 33 through the shaft sleeve 35, and one end of the bristles of the plurality of brushes 34 are all placed in the chute 36, and the positions of the two brushes 34 fixedly connected to the same No. 3 fixing rod 32 in the chute 36 are located at the front and rear ends of the pulley 33.

[0107] Compared with the traditional method of placing the filtration chamber horizontally, placing the conical filtration chamber 8 vertically in the present invention can enhance the solid-liquid separation effect. When the petroleum moves towards the top of the conical filtration chamber 8 along the auger 9, the solid impurities move upward relatively slowly compared to the petroleum. This can prevent too many solid impurities from adhering to the annular screen 5 at once and affecting the filtration effect. At the same time, the design of the conical shape that is wider at the top and narrower at the bottom ensures that when the petroleum at the bottom of the conical filtration chamber 8 moves upward under the push of the auger 9, it will not perform a centrifugal motion with too high a rotational speed. This guarantees that most of the impurities in the petroleum are still close to the rotation axis of the auger 9. As the petroleum gradually reaches the top of the conical filtration chamber 8, at a constant rotational speed of the auger 9, the moving speed of the petroleum near the edge of the conical filtration chamber 8 becomes faster and faster. Finally, when it reaches the annular screen 5, the moving speed of the petroleum reaches the maximum. At a high flow rate, the petroleum can easily pass through the annular screen 5, and it is also difficult for the solids to adhere to the annular screen 5 under the scouring of the high-flow petroleum. Thus, it can ensure that the annular screen 5 remains clean and unblocked during long-term use. After opening the valve 11, the petroleum containing solid impurities enters from the feed pipe 10. Rotate the knob 30. The knob 30 drives the middle gear of the gear set 19 to rotate 90° through the first rotating shaft 22. When the middle gear rotates counterclockwise, the gear meshing with it on the left rotates clockwise, thereby driving the first baffle 20 fixedly connected to the left gear to rotate 90° clockwise and opening the feed pipe 10. The petroleum passes through the first baffle 20 from the feed pipe 10 and enters the conical filtration chamber 8. At the same time, the gear meshing with the middle gear on the right also rotates clockwise, driving the second baffle 21 fixedly connected to the right gear to rotate 90° clockwise and closing the impurity pipe 15. After opening the valve 11 and the petroleum enters the conical filtration chamber 8 from the feed pipe 10, start the motor 1. The motor 1 drives the second rotating shaft 24 to rotate. The second rotating shaft 24 drives the annular screen 5 to rotate. At the same time, under the meshing of the third bevel gear 26, the fourth bevel gear 28 and the fifth bevel gear 27, the auger 9 is driven to rotate in the reverse direction. The auger 9 drives the petroleum to rotate in the reverse direction relative to the annular screen 5. At the same time, the auger 9 also has an upward driving force on the petroleum. The centrifugal force reaches the maximum at the top of the frustum. The annular screen 5 and the auger 9 rotate in the reverse direction, achieving the effect of efficiently filtering solid impurities in the petroleum and also avoiding the situation where solid impurities adhere to the annular screen 5.

[0108] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for petroleum refining, comprising a housing (4) and support columns (12), characterized in that, It further includes: A filtering component which is arranged inside the housing (4) and filters the oil entering the housing (4); A driving component which is arranged inside the housing (4) and provides power for the filtering component; The filtering component includes a conical filtering chamber (8) arranged inside the housing (4); an annular screen (5) arranged at the upper end of the conical filtering chamber (8); a feed pipe (10) fixedly connected to one side of the housing (4) and having one end extending into the housing (4) and communicating with the bottom of the conical filtering chamber (8); a valve (11) whose rotating shaft part is fixed to the feed pipe (10) outside the housing (4) through a first bearing (17); a discharge pipe (16) having one end formed as a circular ring surrounding the top of the conical filtering chamber (8) and the annular screen (5) and the other end extending out of the housing (4) from the side wall of the other end of the housing (4); an impurity pipe (15) fixedly connected to the bottom of the housing (4) and having one end extending into the housing (4) sharing a pipe wall with the feed pipe (10); a gear set (19) which includes three gears with exactly the same shape and size meshed in a row and is arranged at the end of the shared pipe wall where the feed pipe (10) and the impurity pipe (15) are connected and leading to the bottom of the conical filtering chamber (8); a first baffle (20) fixedly connected to the gear on the side of the gear set (19) close to the feed pipe (10); a second baffle (21) fixedly connected to the gear on the side of the gear set (19) close to the impurity pipe (15); a second bearing (29) fixedly connected to the side wall of the housing (4) close to the middle gear of the gear set (19); a first rotating shaft (22) having one end fixedly connected to the middle gear of the gear set (19) and the other end extending through the second bearing (29) and reaching outside the housing (4); a knob (30) fixedly connected to the end of the first rotating shaft (22) extending out of the housing (4); The driving assembly includes a motor (1) disposed at the top of the housing (4); a first bevel gear (2) fixedly connected to the end of the transmission part of the motor (1); a third bearing (3) fixedly connected to the upper end of the housing (4) near the first bevel gear (2); a fourth bearing (23) fixedly connected to the annular end of the discharge pipe (16); a second rotating shaft (24); one end is located outside the upper end of the housing (4), and the other end passes through the third bearing (3) and the fourth bearing (23) and extends into the conical filtering chamber (8); a second bevel gear (25) fixedly connected to one end of the second rotating shaft (24) located outside the upper end of the housing (4) and meshing with the first bevel gear (2); a first fixing rod (6), one end of the two first fixing rods (6) is fixedly connected to the second rotating shaft (24), and the other end is fixedly connected to the annular screen (5); a third bevel gear (26) fixedly connected to the end of the second rotating shaft (24) located in the conical filtering chamber (8); a screw conveyor (9) disposed in the conical filtering chamber (8), and a fourth bevel gear (28) is fixedly connected to the upper end; a fifth bevel gear (27) perpendicular to the third bevel gear (26) and the fourth bevel gear (28) and meshing with the third bevel gear (26) and the fourth bevel gear (28); a second fixing rod (7), one end of the multiple second fixing rods (7) is fixedly connected to the inner side wall of the housing (4), and the other end is fixedly connected to the outer side wall of the conical filtering chamber (8); a chute (36), multiple chutes (36) are opened on the inner side wall of the conical filtering chamber (8); a third fixing rod (32), one end of the multiple third fixing rods (32) is fixedly connected to the screw conveyor (9), and the other end is respectively fixedly connected with a pulley (33); a brush (34), one end of the multiple brushes (34) is placed in the chute (36), and the other end is fixedly connected to one side of the third fixing rod (32) fixedly connected with the pulley (33) through a bushing (35), and two brushes (34) are respectively fixedly connected to one third fixing rod (32) through bushings (35) and are respectively located at the front and rear ends of the pulley (33).

2. The solid-liquid separation device for petroleum refining according to claim 1, characterized in that: A polytetrafluoroethylene coating is provided on the surfaces of all components in the conical filtering chamber (8).

3. A solid-liquid separation device for petroleum refining according to claim 1, characterized in that: The diameters of the blades on the screw conveyor (9) gradually increase from bottom to top.

4. A solid-liquid separation device for petroleum refining according to claim 1, characterized in that: A static settling tank (13) is provided at the bottom of the housing (4); the impurity pipeline (15) passes through the bottom of the housing (4) and communicates with the static settling tank (13).

5. A solid-liquid separation device for petroleum refining according to claim 4, characterized in that: A discharge pipe (14) is provided at the bottom of the static settling tank (13); a filter screen (31) is provided at the connection of the discharge pipe (14) and the static settling tank (13); the other end of the discharge pipe (14) communicates with the discharge pipe (16); the height of the bottom of the static settling tank (13) is higher than the height of the discharge pipe (16) placed on the ground.

6. A solid-liquid separation device for petroleum refining according to claim 1, characterized in that: The annular screen (5) is in close contact with the inner walls of the top of the conical filtering chamber (8) and the top of the discharge pipe (16).

7. A solid-liquid separation device for petroleum refining according to claim 1, characterized in that: The cross-sectional shapes of the feed pipe (10) and the impurity pipe (15) at the gear set (19) are square; and the cross-sectional dimensions of the feed pipe (10) and the impurity pipe (15) at the gear set (19) are exactly the same as those of the first baffle (20) and the second baffle (21), respectively.

8. A solid-liquid separation device for petroleum refining according to claim 1, characterized in that: A protrusion (18) is provided at the lower end of the inner wall of the feed pipe (10) where the first baffle (20) vertically points and at the lower end of the inner wall of the impurity pipe (15) where the second baffle (21) vertically points, respectively.

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