Drilling fluid centrifugal machine equipment for oil exploitation

Abstract

The invention relates to the technical field of mechanical equipment, in particular to drilling fluid centrifugal machine equipment for oil exploitation, which comprises a spiral propeller, a rotary drum, a driving assembly, a cleaning assembly I and a cleaning assembly II. According to the working principle of the existing horizontal spiral centrifugal machine, the spiral propeller and the rotary drum rotate in the same direction, but the rotating speed is lower than that of the rotary drum; the three rolling brushes are rotationally connected to the outer side of the spiral propeller, the right ends of the three rolling brushes are rotationally connected to the tripod, the tripod is fixedly connected with the right end of the spiral propeller, gears are fixedly connected to the positions, close to the right ends, of the three rolling brushes, the gear ring is fixedly connected with the inner wall of the right end of the rotary drum, and the gear ring is meshed with the gear. Therefore, the gear ring is driven to rotate when the rotary drum rotates, the gear drives the rolling brush to rotate through the meshing effect of the gear ring and the gear, and the fixed ring layer on the inner wall of the rotary drum is further cleaned when the rolling brush rotates.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a drilling fluid centrifuge device for petroleum mining. Background Art

[0002] It is composed of a high-speed drum, a screw conveyor with a hollow shaft that has the same direction as the drum and a slightly lower speed than the drum, and a differential. When the suspension to be separated is sent into the drum by the hollow shaft, it is immediately thrown into the drum cavity under the centrifugal force generated by high-speed rotation. The high-speed rotating drum generates a strong centrifugal force to throw the solid phase particles with a density greater than the liquid phase onto the inner wall of the drum to form a solid layer (called a solid ring layer because of its ring shape); the water has a small density and a small centrifugal force, so it can only form a liquid layer on the inside of the solid ring layer, called a liquid ring layer. Due to the different speeds of the spiral and the drum, there is a relative movement between the two (i.e., the speed difference). The relative movement of the spiral and the drum is used to slowly push the sludge in the solid ring layer to the cone end of the drum, and after passing through the drying area, it is continuously discharged from the outlets distributed around the drum; the liquid in the liquid ring layer is continuously "overflowed" from the weir to the outside of the drum by gravity to form a separated liquid.

[0003] The existing Chinese patent with authorization number: CN117414955B includes a rotary drum, a spiral propeller located in the rotary drum, and a machine cover arranged outside the rotary drum, and also includes: a slag discharge barrel, the slag discharge barrel is detachably installed at the discharge end of the rotary drum, a plurality of slag discharge holes are opened circumferentially on the surface of the slag discharge barrel, the slag discharge barrel is connected to the rotary drum, an adjustment component is detachably installed on the end of the slag discharge barrel away from the rotary drum, the spiral propeller extends into the slag discharge barrel and the adjustment component in turn, the machine cover is rotatably installed on the end of the slag discharge barrel away from the rotary drum, an annular grinding disc mounted on the spiral propeller is installed in the slag discharge barrel, and the annular grinding disc is connected to the adjustment component.

[0004] The existing decanter centrifuges have the following main disadvantages: Due to the rotation, the screw propeller has inertia force when rotating, which causes friction between the screw propeller and the inner wall of the drum. Long-term use may cause the screw propeller to be unable to remove the solid ring layer inside the drum. Summary of the invention

[0005] The object of the present invention is to provide a drilling fluid centrifuge device for petroleum mining to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A drilling fluid centrifuge device for oil mining, comprising a screw propeller, a drum, a driving assembly, a cleaning assembly 1 and a cleaning assembly 2, wherein the screw propeller is rotatably arranged in the inner cavity of the drum, the drum is rotatably connected to the driving assembly, the right end of the cleaning assembly 1 is fixedly connected to the right end of the screw propeller, the cleaning assembly 1 is arranged on the outer side of the screw propeller, the right end of the cleaning assembly 2 is fixedly connected to the outer side of the cleaning assembly 1 near the right end, and the cleaning assembly 2 is arranged in the inner cavity of the screw propeller; wherein The cleaning assembly 1 includes: three roller brushes, the three roller brushes are rotatably connected to the outside of the spiral propeller, the right ends of the three roller brushes are rotatably connected to a tripod, the tripod is fixedly connected to the right end of the spiral propeller, and the three roller brushes are fixedly connected to gears at positions near the right ends; and A gear ring, the gear ring is fixedly connected to the inner wall of the right end of the drum and meshes with the gear; The cleaning component 2 includes: A guide rod, one end of which is fixedly connected to the right end of the screw propeller, a slider is slidably connected to the guide rod, three rotating shafts are rotatably connected in the inner cavity of the screw propeller, a rotating propulsion block is fixedly connected to the rotating shaft, a sliding groove is opened along the outer curved surface of the rotating propulsion block, the sliding groove is symmetrically arranged about the plane where the axis of the rotating propulsion block is located, three sliding rods are fixedly connected to the outer side of the slider, and the other end of the sliding rod is slidably connected in the sliding groove.

[0007] Furthermore, the right ends of the three rotating shafts are fixedly connected to a synchronous wheel 1, and the right ends of the three roller brushes are also fixedly connected to a synchronous wheel 1, and the two synchronous wheels 1 are driven by a synchronous belt 1.

[0008] Furthermore, the driving assembly includes: A bracket is fixedly connected to a motor, an output end of the motor is fixedly connected to one end of a driving shaft, the other end of the driving shaft is fixedly connected to a differential, the differential is respectively fixedly connected to a screw propeller and a drum, a workbench is also fixedly connected to the bracket, and the drum is rotatably connected to the workbench.

[0009] Furthermore, a second synchronous wheel is fixedly connected to the driving shaft, and driven shafts are rotatably connected to both sides of the workbench. One end of the driven shaft is fixedly connected to a second synchronous wheel, and the second synchronous wheel is driven by a second synchronous belt.

[0010] Furthermore, the other end of the driven shaft is fixedly connected to a cam, and a push rod is slidably connected to the workbench. A spring is sleeved on the push rod, and one end of the push rod abuts against the cam.

[0011] Furthermore, a slag discharge port and a liquid discharge port are provided at the lower portion of the workbench, and a connecting platform is fixedly connected to the right end of the bracket.

[0012] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: 1. According to the working principle of the existing horizontal screw centrifuge, the screw propeller rotates in the same direction as the drum, but the speed is lower than that of the drum. Three roller brushes are rotatably connected to the outside of the screw propeller. The right ends of the three roller brushes are rotatably connected to the tripod. The tripod is fixedly connected to the right end of the screw propeller. Gears are fixedly connected to the positions of the three roller brushes near the right end. The gear ring is fixedly connected to the inner wall of the right end of the drum. The gear ring is meshed with the gear, so the gear ring is driven to rotate when the drum rotates, and then through the meshing action of the gear ring and the gear, the gear drives the roller brush to rotate, so that the solid ring layer on the inner wall of the drum is further cleaned when the roller brush rotates.

[0013] 2. When the roller brush rotates, it drives the synchronous wheel 1 fixedly connected to it to rotate, and then drives the rotating shaft fixedly connected to the synchronous wheel 1 to rotate through the transmission action of the synchronous belt 1. When the roller brush rotates, it drives the rotating shaft to rotate, and then drives the rotating propulsion block fixedly connected to the rotating shaft to rotate. Through the cooperation of the slide groove and the slide rod, the slider slides back and forth on the guide rod, thereby cleaning the inside of the screw propeller.

[0014] 3. When the motor rotates, it drives the driving shaft to rotate, and then the synchronous wheel fixedly connected to the driving shaft rotates. Through the transmission action of the synchronous belt 2, the driven shaft rotates, and then the push rod is driven to slide on the workbench. When the push rod slides inward, the spring is compressed, and the other end of the push rod hits the outer surface of the drum. When the push rod slides outward, the spring is reset. In this way, the solid ring layer remaining in the drum can be better cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the cleaning component of the present invention; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the cleaning component 2 of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the middle A area; Figure 5 It is a schematic diagram of the overall three-dimensional structure of the top rod of the present invention; Figure 6 It is a schematic diagram of the overall three-dimensional structure of the workbench of the present invention; Figure 7 It is a schematic diagram of the overall three-dimensional structure of the cam of the present invention; Figure 8 It is a schematic diagram of the overall three-dimensional structure of the cleaning component 2 of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Screw propeller; 2. Rotating drum; 3. Driving assembly; 31. Bracket; 311. Connecting table; 32. Motor; 33. Driving shaft; 331. Synchronous wheel 2; 332. Driven shaft; 333. Synchronous belt 2; 334. Cam; 335. Ejector rod; 336. Spring; 34. Differential; 35. Workbench; 351. Slag outlet; 352. Liquid outlet; 4. Cleaning component 1; 41. Roller brush; 42. Tripod; 43. Gear; 44. Gear ring; 5. Cleaning component 2; 51. Guide rod; 52. Sliding block; 521. Sliding rod; 53. Rotating shaft; 531. Synchronous wheel 1; 532. Synchronous belt 1; 54. Rotating propulsion block; 541. Sliding groove. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0020] Reference Figure 1-4As shown in Figure 8, a drilling fluid centrifuge device for oil mining includes a screw propeller 1, a drum 2, a driving assembly 3, a cleaning assembly 1 4 and a cleaning assembly 2 5, wherein the screw propeller 1 is rotatably arranged in the inner cavity of the drum 2, the drum 2 is rotatably connected to the driving assembly 3, the right end of the cleaning assembly 1 4 is fixedly connected to the right end of the screw propeller 1, and the cleaning assembly 1 4 is arranged on the outside of the screw propeller 1; and The right end of the cleaning component 2 5 is fixedly connected to the outer part of the cleaning component 1 4 near the right end, and the cleaning component 2 5 is arranged in the inner cavity of the screw propeller 1; The cleaning component 14 includes: Three roller brushes 41, the three roller brushes 41 are rotatably connected to the outside of the screw propeller 1, the right ends of the three roller brushes 41 are rotatably connected to a tripod 42, the tripod 42 is fixedly connected to the right end of the screw propeller 1, and the three roller brushes 41 are fixedly connected to a gear 43 near the right end; and A gear ring 44, wherein the gear ring 44 is fixedly connected to the inner wall of the right end of the drum 2, and the gear ring 44 is meshed with the gear 43; The cleaning component 2 5 includes: A guide rod 51, one end of which is fixedly connected to the right end of the screw propeller 1, a slider 52 is slidably connected to the guide rod 51, three rotating shafts 53 are rotatably connected in the inner cavity of the screw propeller 1, a rotating propulsion block 54 is fixedly connected to the rotating shaft 53, a sliding groove 541 is opened along the outer curved surface of the rotating propulsion block 54, the sliding groove 541 is symmetrically arranged about the plane where the axis of the rotating propulsion block 54 is located, three sliding rods 521 are fixedly connected to the outer side of the slider 52, and the other end of the sliding rod 521 is slidably connected in the sliding groove 541.

[0021] The left ends of the screw propeller 1 and the drum are conical ends and the right ends are large ends. It is known from the working principle of the existing horizontal screw centrifuge that the screw propeller 1 rotates in the same direction as the drum 2, but the speed is lower than that of the drum 2. The three roller brushes 41 are rotatably connected to the outside of the screw propeller 1, and the right ends of the three roller brushes 41 are rotatably connected to the tripod 42. The tripod 42 is fixedly connected to the right end of the screw propeller 1. The three roller brushes 41 are fixedly connected with a gear 43 near the right end. The gear ring 44 is fixedly connected to the inner wall of the right end of the drum 2. The gear ring 44 is meshed with the gear 43, so when the drum 2 rotates, the gear ring 44 is driven to rotate, and then through the meshing action of the gear ring 44 and the gear 43, the gear 43 drives the roller brush 41 to rotate. When the roller brush 41 rotates, it drives the rotating shaft 53 to rotate, and then drives the rotating propulsion block 54 fixedly connected to the rotating shaft 53 to rotate, and through the cooperation of the slide groove 541 and the slide rod 521, the slider 52 slides back and forth on the guide rod 51.

[0022] The right ends of the three rotating shafts 53 are fixedly connected to a synchronous wheel 531 , and the right ends of the three rolling brushes 41 are also fixedly connected to a synchronous wheel 531 . The two synchronous wheels 531 are driven by a synchronous belt 532 .

[0023] When the roller brush 41 rotates, it drives the synchronous wheel 531 fixedly connected thereto to rotate, and then drives the rotating shaft 53 fixedly connected to the synchronous wheel 531 to rotate through the transmission action of the synchronous belt 532.

[0024] The driving assembly 3 includes: A bracket 31 is fixedly connected to a motor 32, an output end of the motor 32 is fixedly connected to one end of a driving shaft 33, the other end of the driving shaft 33 is fixedly connected to a differential 34, the differential 34 is respectively fixedly connected to the propeller 1 and the drum 2, a workbench 35 is also fixedly connected to the bracket 31, and the drum 2 is rotatably connected to the workbench 35.

[0025] The output end of the motor 32 is fixedly connected to one end of the driving shaft 33, and the other end of the driving shaft 33 is fixedly connected to a differential 34. The differential 34 is respectively fixedly connected to the screw propeller 1 and the drum 2. The motor 32 drives the differential 34 to rotate, thereby driving the drum 2 and the screw propeller 1 to rotate. The differential 34 makes the rotation speed of the screw propeller 1 lower than that of the drum 2. A workbench 35 is also fixedly connected to the bracket 31, and the drum 2 is rotatably connected to the workbench 35.

[0026] Reference Figure 5 and 7 As shown, a second synchronous wheel 331 is fixedly connected to the driving shaft 33, and driven shafts 332 are rotatably connected on both sides of the workbench 35. One end of the driven shaft 332 is fixedly connected to the second synchronous wheel 331, and the second synchronous wheel 331 is driven by a second synchronous belt 333.

[0027] The other end of the driven shaft 332 is fixedly connected to a cam 334 . A push rod 335 is slidably connected to the workbench 35 . A spring 336 is sleeved on the push rod 335 . One end of the push rod 335 abuts against the cam 334 .

[0028] When the motor 32 rotates, it drives the driving shaft 33 to rotate, and then the synchronous wheel fixedly connected to the driving shaft 33 rotates. Through the transmission action of the synchronous belt 2 333, the driven shaft 332 rotates, and then the push rod 335 is driven to slide on the workbench 35. When the push rod 335 slides inward, the spring 336 is compressed. At the same time, the other end of the push rod 335 hits the outer surface of the drum 2. When the push rod 335 slides outward, the spring 336 is reset.

[0029] Reference Figure 6As shown, a slag discharge port 351 and a liquid discharge port 352 are provided at the lower portion of the workbench 35 , a connecting platform 311 is fixedly connected to the right end of the bracket 31 , and the motor 32 is fixedly connected to the connecting platform 311 .

[0030] Through the relative speed difference between the screw propeller 1 and the drum 2, the solid impurities are separated from the liquid and discharged from the slag discharge port 351 and the liquid discharge port 352 respectively, so as to achieve the purpose of centrifugal slag removal. A flap device can be set at the opening at the upper end of the workbench 35. This design is an existing technology to prevent the liquid from being thrown out by the centrifugal force when the drum rotates.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling fluid centrifuge device for oil mining, characterized in that: The invention comprises a screw propeller (1), a rotating drum (2), a driving assembly (3), a cleaning assembly 1 (4) and a cleaning assembly 2 (5), wherein the screw propeller (1) is rotatably arranged in the inner cavity of the rotating drum (2), the rotating drum (2) is rotatably connected to the driving assembly (3), the right end of the cleaning assembly 1 (4) is fixedly connected to the right end of the screw propeller (1), the cleaning assembly 1 (4) is arranged on the outer side of the screw propeller (1), the right end of the cleaning assembly 2 (5) is fixedly connected to the outer part of the cleaning assembly 1 (4) near the right end, and the cleaning assembly 2 (5) is arranged in the inner cavity of the screw propeller (1); wherein The cleaning assembly 1 (4) comprises: three roller brushes (41), the three roller brushes (41) are rotatably connected to the outside of the screw propeller (1), the right ends of the three roller brushes (41) are rotatably connected to a tripod (42), the tripod (42) is fixedly connected to the right end of the screw propeller (1), and the three roller brushes (41) are fixedly connected to a gear (43) at a position close to the right end; and A gear ring (44), the gear ring (44) being fixedly connected to the inner wall of the right end of the drum (2), and the gear ring (44) being meshed with the gear (43); The cleaning component 2 (5) includes: A guide rod (51), one end of which is fixedly connected to the right end of the screw propeller (1), a slider (52) being slidably connected to the guide rod (51), three rotating shafts (53) being rotatably connected in the inner cavity of the screw propeller (1), a rotating propulsion block (54) being fixedly connected to the rotating shaft (53), a sliding groove (541) being provided along the outer curved surface of the rotating propulsion block (54), the sliding groove (541) being symmetrically arranged about the plane where the axis of the rotating propulsion block (54) is located, three sliding rods (521) being fixedly connected to the outer side of the slider (52), the other end of the sliding rod (521) being slidably connected in the sliding groove (541).

2. A drilling fluid centrifuge device for oil mining according to claim 1, characterized in that: The right ends of the three rotating shafts (53) are fixedly connected to a synchronous wheel (531), and the right ends of the three rolling brushes (41) are also fixedly connected to a synchronous wheel (531). The two synchronous wheels (531) are driven by a synchronous belt (532).

3. The drilling fluid centrifuge equipment for oil mining according to claim 2, characterized in that: The driving component (3) comprises: A bracket (31), wherein a motor (32) is fixedly connected to the bracket (31), an output end of the motor (32) is fixedly connected to one end of a driving shaft (33), the other end of the driving shaft (33) is fixedly connected to a differential (34), the differential (34) is respectively fixedly connected to the screw propeller (1) and the drum (2), and a workbench (35) is also fixedly connected to the bracket (31), and the drum (2) is rotatably connected to the workbench (35).

4. The drilling fluid centrifuge equipment for oil mining according to claim 3, characterized in that: A second synchronous wheel (331) is fixedly connected to the driving shaft (33), and driven shafts (332) are rotatably connected to both sides of the workbench (35). One end of the driven shaft (332) is fixedly connected to the second synchronous wheel (331), and the second synchronous wheel (331) is driven by a second synchronous belt (333).

5. The drilling fluid centrifuge equipment for oil mining according to claim 4, characterized in that: The other end of the driven shaft (332) is fixedly connected to a cam (334), and a push rod (335) is slidably connected to the workbench (35). A spring (336) is sleeved on the push rod (335), and one end of the push rod (335) abuts against the cam (334).

6. The drilling fluid centrifuge equipment for oil mining according to claim 5, characterized in that: A slag discharge port (351) and a liquid discharge port (352) are provided at the lower portion of the workbench (35), and a connecting platform (311) is fixedly connected to the right end of the bracket (31).

Images