Centrifugal solid-liquid separation and reduction machine for oilfield sludge

By using the shearing force of the rotating drum and turbine blades to crush solids, and combined with scraping to remove adhering objects, the problem of incomplete separation of liquid inside solids in centrifugal solid-liquid separators for oilfield sludge is solved, thus improving the separation effect and equipment efficiency.

CN224332377UActive Publication Date: 2026-06-09SHAANXI TUOPU SCI IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI TUOPU SCI IND & TRADE CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing centrifugal solid-liquid separators for oilfield sludge cannot completely separate solids containing liquids using centrifugal force alone, resulting in poor separation performance.

Method used

The design employs a rotating drum and turbine blades. The turbine blades rotate in opposite directions to generate shearing force to shred the solids, and the combined structure of a scraper and an elastic scraper removes the adhered objects, ensuring thorough solid-liquid separation.

Benefits of technology

It achieves thorough solid-liquid separation, prevents solid adhesion and clogging, and improves the efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses oil field oil sludge centrifugal solid -liquid separation reduction machine relates to oil field oil sludge processing technical field, the utility model discloses a base is fixedly connected with a plurality of support blocks to the outer wall of base, the utility model discloses a drum and turbine blade are set up, because the rotation direction of first gear and second gear is different, so when drum rotates clockwise, then the connecting pipe will rotate counterclockwise, so need to set up the blade of turbine blade into left -hand blade in advance, at this moment can send the object to the small end of drum through the rotation of turbine blade, and because turbine blade is reverse rotation, so the shear force produced when it rotates can cut the solid, reached through the rotation of turbine blade and drum opposite, utilize the shear force of turbine blade and cut the object conveniently extrude liquid, prevent appearing because the inside of solid has liquid, and only rely on centrifuge rotation produced centrifugal force to be difficult to completely carry out solid -liquid separation, leading to the separation effect of device is poor.
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Description

Technical Field

[0001] This utility model belongs to the field of oilfield sludge processing technology, and in particular relates to a centrifugal solid-liquid separation and volume reduction machine for oilfield sludge. Background Technology

[0002] A centrifugal solid-liquid separator according to the published patent CN208373344U includes a filter cylinder connected to a power assembly for driving its rotation. The filter cylinder has a water filtration structure for filtering out liquid material. The solid-liquid mixture enters the filter cylinder through an inlet. The discharge device includes an air compressor assembly and a discharge pipe. The air compressor assembly provides a high-speed airflow to blow the solid material in the filter cylinder to the discharge pipe, where it is then discharged. When the centrifugal solid-liquid separator is working, the filter cylinder... Driven by the power unit, the filter cylinder begins to rotate. Simultaneously, the solid-liquid mixture inside rotates with the filter cylinder and is subjected to centrifugal force. Under this force, the liquid portion of the mixture is filtered out or ejected through the filtration structure, while the solid portion concentrates on the inner wall of the filter cylinder. At the same time, the discharge device includes an air compressor assembly and a discharge pipe. The air compressor assembly provides a high-speed airflow, which passes through the filtration structure and blows the solid portion located on the inner wall of the filter cylinder to the discharge pipe, where it is then output. However, the following shortcomings still exist:

[0003] After completion, the above equipment simply separates solids and liquids by rotating a centrifuge. However, since the solid contains liquid, the centrifugal force generated by the centrifuge rotation alone is insufficient to completely separate the solids and liquids, resulting in poor separation performance of the device. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal solid-liquid separation and reduction machine for oilfield sludge. Through the separation mechanism and auxiliary mechanism, it solves the problem that because the solid contains liquid, the centrifugal force generated by the centrifuge rotation alone is insufficient to completely separate the solid and liquid, resulting in poor separation effect of the device.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a centrifugal solid-liquid separation and volume reduction machine for oilfield sludge, including a base, a plurality of support blocks are fixedly connected to the outer wall of the base, and an outer shell is fixedly connected to the outer wall of the support blocks.

[0007] The inner wall of the support block is provided with a separation mechanism, which includes a motor. The outer wall of the motor is fixedly connected to the inner wall of the support block. The output end of the motor is fixedly connected to a connecting shaft via a coupling. A first crown gear is fixedly connected to the outer wall of the connecting shaft. A first gear meshes with the outer wall of the first crown gear. A drum is fixedly connected to the outer wall of the first gear. The inner wall of the drum has several discharge ports. A second gear meshes with the outer wall of the first crown gear. A connecting pipe is fixedly connected to the outer wall of the second gear. A discharge hole is opened on the inner wall of the connecting pipe. A turbine blade is fixedly connected to the outer wall of the connecting pipe. The outer wall of the turbine blade is rotatably connected to the inner wall of the drum.

[0008] Furthermore, a feed hopper is rotatably connected to the outer wall of the end of the connecting pipe away from the second gear. The outer wall of the feed hopper is fixedly connected to the outer wall of the support block. The outer wall of the first crown gear is rotatably connected to the inner wall of the support block. The outer wall of the drum is rotatably connected to the inner wall of the outer shell. A discharge port is provided on the inner wall of the support block. An auxiliary mechanism is provided on the inner wall of the support block.

[0009] Furthermore, the auxiliary mechanism includes a first pulley, the outer wall of the first pulley is fixedly connected to the outer wall of the connecting shaft, a belt is drivenly connected to the inner wall of the first pulley, a second pulley is drivenly connected to the outer wall of the belt away from the first pulley, a positioning shaft is fixedly connected to the inner wall of the second pulley, the outer wall of the positioning shaft is rotatably connected to the outer wall of the support block, and a second crown gear is fixedly connected to the outer wall of the positioning shaft away from the support block.

[0010] Furthermore, a third gear meshes with the outer wall of the second crown gear, and a baffle plate is rotatably connected to the outer wall of the third gear. The outer wall of the baffle plate is fixedly connected to the outer wall of the support block.

[0011] Furthermore, the outer wall of the third gear is rotatably connected to several connecting plates, the inner wall of the connecting plates is provided with a sliding groove, and a spring is fixedly connected to the inner wall of the connecting plates.

[0012] Furthermore, a slider is fixedly connected to the outer wall of the end of the spring away from the connecting plate, and the outer wall of the slider is slidably connected to the inner wall of the groove.

[0013] Furthermore, an elastic scraper is rotatably connected to the bottom outer wall of the connecting plate, and the outer wall of the elastic scraper is slidably connected to the outer wall of the drum.

[0014] Furthermore, a scraper is fixedly connected to the outer wall of the connecting plate, the outer wall of the scraper is slidably connected to the inner wall of the support block, and several collection boxes are slidably connected to the bottom of the inner wall of the base.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a rotating drum and turbine blades. Since the first and second gears rotate in different directions, the connecting pipe rotates counterclockwise when the drum rotates clockwise. Therefore, the turbine blades need to be set to left-handed rotation beforehand. The rotation of the turbine blades can then deliver the object to the small end of the drum. Furthermore, because the turbine blades rotate in the opposite direction, the shearing force generated during their rotation can shred the solid. This achieves the goal of using the shearing force of the turbine blades, which is opposite to the rotation of the drum, to shred the object and facilitate the extrusion of liquid. This prevents the problem that the centrifugal force generated during the centrifuge rotation alone is insufficient to completely separate the solid and liquid due to the presence of liquid inside the solid, resulting in poor separation performance of the device.

[0017] 2. This utility model incorporates a scraper and an elastic scraper. During the rotation of the third gear, multiple connecting plates move, simultaneously causing the elastic scraper to slide around the discharge port surface at the small end of the drum. The elastic scraper pushes out any objects blocking the discharge port. As the connecting plates move, the scraper on the outer side of the connecting plates comes into contact with stubborn objects on the inner wall of the support block. This achieves the goal of scraping away objects stuck inside the device through the movement of the scraper and the elastic scraper, preventing solids from sticking to the inside of the device after the liquid is discharged, thus blocking the discharge port and reducing the device's efficiency.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the separation structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the auxiliary structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a cross-sectional view of the detached structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base; 101. Support block; 102. Outer shell; 2. Separation mechanism; 201. Motor; 202. Connecting shaft; 203. First crown gear; 204. First gear; 205. Rotary drum; 206. Turbine blade; 207. Discharge port; 208. Feed hopper; 209. Second gear; 210. Connecting pipe; 211. Discharge hole; 212. Unloading port; 3. Auxiliary mechanism; 301. First pulley; 302. Belt; 303. Second pulley; 304. Positioning shaft; 305. Second crown gear; 306. Third gear; 307. Baffle plate; 308. Connecting plate; 309. Slide groove; 310. Elastic scraper; 311. Scraper; 312. Connecting rod; 313. Spring; 314. Slider; 315. Collection box. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a centrifugal solid-liquid separation and volume reduction machine for oilfield sludge, including a base 1. Several support blocks 101 are fixedly connected to the outer wall of the base 1. A shell 102 is fixedly connected to the outer wall of the support blocks 101. The rotating part of the device is wrapped by the support blocks 101 and the shell 102.

[0029] A separation mechanism 2 is provided on the inner wall of the support block 101. The separation mechanism 2 includes a motor 201. The motor 201 is started, and its outer wall is fixedly connected to the inner wall of the support block 101. The output end of the motor 201 is fixedly connected to a connecting shaft 202 via a coupling. A first crown gear 203 is fixedly connected to the outer wall of the connecting shaft 202. A first gear 204 meshes with the outer wall of the first crown gear 203. Through the meshing of the first crown gear 203 and the first gear 204, the first crown gear 204... The first gear 203 drives the first gear 204 to rotate. A drum 205 is fixedly connected to the outer wall of the first gear 204. The first gear 204 drives the drum 205 to rotate clockwise. Several discharge ports 207 are opened on the inner wall of the drum 205. A second gear 209 meshes with the outer wall of the first crown gear 203. A connecting pipe 210 is fixedly connected to the outer wall of the second gear 209. Through the meshing of the first crown gear 203 and the second gear 209, the first crown gear 203 drives the second gear 209. As the wheel 209 rotates, it drives the connecting pipe 210 to rotate counterclockwise. The inner wall of the connecting pipe 210 has a discharge hole 211, and a turbine blade 206 is fixedly connected to the outer wall of the connecting pipe 210. Because the connecting pipe 210 rotates counterclockwise, the overall tooth shape of the turbine blade 206 is left-handed. The outer wall of the turbine blade 206 is rotatably connected to the inner wall of the drum 205. A feed hopper 208 is rotatably connected to the outer wall of the end of the connecting pipe 210 away from the second gear 209, allowing for feeding. The inside of the hopper 208 is sloping, so the poured material can flow into the connecting pipe 210. The outer wall of the feed hopper 208 is fixedly connected to the outer wall of the support block 101. The outer wall of the first crown gear 203 is rotatably connected to the inner wall of the support block 101. The outer wall of the drum 205 is rotatably connected to the inner wall of the outer shell 102. The inner wall of the support block 101 is provided with a discharge port 212. The separated objects can be discharged from both ends through the discharge port 212. The inner wall of the support block 101 is provided with an auxiliary mechanism 3.

[0030] Auxiliary mechanism 3 includes a first pulley 301, the outer wall of which is fixedly connected to the outer wall of connecting shaft 202. Rotation of connecting shaft 202 drives the first pulley 301 to rotate. A belt 302 is drivenly connected to the inner wall of the first pulley 301. A second pulley 303 is drivenly connected to the outer wall of the end of belt 302 away from the first pulley 301. Since both ends of belt 302 connect the first pulley 301 and the second pulley 303, rotation of the first pulley 301 simultaneously drives the belt 302 and the second pulley 303 at the other end. A positioning shaft 304 is fixedly connected to the inner wall of the second pulley 303. The outer wall of positioning shaft 304 is connected to a support block. The outer wall of 101 is rotatably connected. The positioning shaft 304 is driven to rotate by the second pulley 303, and the rotation of the positioning shaft 304 is supported by the support block 101. The outer wall of the end of the positioning shaft 304 away from the support block 101 is fixedly connected to the second crown gear 305. The outer wall of the second crown gear 305 is meshed with the third gear 306. The third gear 306 is driven to rotate by the rotation of the second crown gear 305. The outer wall of the third gear 306 is rotatably connected to the baffle plate 307. The baffle plate 307 prevents objects from running out from the gap between the third gear 306 and the support block 101. The outer wall of the baffle plate 307 is fixedly connected to the outer wall of the support block 101.

[0031] Several connecting plates 308 are rotatably connected to the outer wall of the third gear 306. The inner wall of each connecting plate 308 has a groove 309. A spring 313 is fixedly connected to the inner wall of each connecting plate 308. The elasticity of the spring 313 increases the pushing force of the connecting plate 308 on the object, while also relieving the pressure of stubborn stains on the connecting plate 308. A slider 314 is fixedly connected to the outer wall of the end of the spring 313 away from the connecting plate 308. The outer wall of the slider 314 is slidably connected to the inner wall of the groove 309. Pressure is applied by the slider 314 moving along the interior of the groove 309. The spring 313 inside the chute 309 is rotatably connected to the bottom outer wall of the connecting plate 308. The overall material of the elastic scraper 310 can be deformed, thereby facilitating the relief of the pressure of the object ejected from the discharge port 207. The outer wall of the elastic scraper 310 is slidably connected to the outer wall of the drum 205. The outer wall of the connecting plate 308 is fixedly connected to the scraper 311, which scrapes away stubborn stains on the inner wall of the base 1. The outer wall of the scraper 311 is slidably connected to the inner wall of the support block 101. Several collection boxes 315 are slidably connected to the bottom of the inner wall of the base 1.

[0032] One specific application of this embodiment is:

[0033] When the equipment is needed, the object to be processed is poured into the feed hopper 208. Because the feed hopper 208 is tilted at a certain angle, the object can flow into the connecting pipe 210. Then, the motor 201 is started, causing the connecting shaft 202 to rotate, which in turn rotates the first crown gear 203. Since the first crown gear 203 meshes with the second gear 209, the rotation of the first crown gear 203 drives the second gear 209 to rotate, which in turn drives the connecting pipe 210 to rotate. Through the continuous flow of the object, it gradually flows to the discharge hole 211. The centrifugal force generated by the rotation of the connecting pipe 210 throws the object out through the discharge hole 211. During the rotation of the connecting pipe 210, the connecting... The connecting pipe 210 drives the turbine blades 206 to rotate. The rotation and compression of the turbine blades 206 squeezes out water from the object, and the water is pushed to one end of the drum 205 by the rotation of the turbine blades 206 through the solid. During the rotation of the first crown gear 203, since the first crown gear 203 meshes with the first gear 204, the first crown gear 203 can drive the first gear 204 to rotate. The rotation of the first gear 204 drives the drum 205 to rotate inside the outer casing 102. Because the rotation directions of the first gear 204 and the second gear 209 are different, when the drum 205 rotates clockwise, the connecting pipe 210 will rotate counterclockwise. Therefore, the blades of the turbine blades 206 need to be set to left-handed blades beforehand. The rotation of the turbine blades 206 delivers the object to the other end of the drum 205. Since the turbine blades 206 rotate in opposite directions, the shearing force generated during rotation can shred solids. The drum 205 is shaped like a cone with one end larger than the other. Solids are pushed to the smaller end by the rotation of the turbine blades 206, while liquids are squeezed to the larger end. Multiple identical discharge ports 207 are provided on both sides of the drum 205 to discharge the object. Two identical collection boxes 315 are located at the bottom of each discharge port 207 to separate and collect the discharged liquids and solids. During the rotation of the connecting shaft 202, the first pulley 301 rotates, simultaneously driving the belt 302 to transmit power. The belt 302 is connected to a second pulley 303 at the other end, thus driving the second pulley 303 to rotate. During the rotation of the second pulley 303, the positioning shaft 304 rotates, causing the positioning shaft 304 to drive the second crown gear 305 to rotate. Since the second crown gear 305 meshes with the third gear 306, it drives the third gear 306 to rotate. The baffle plate 307 blocks the gap between the third gear 306 and the support block 101. During the rotation of the third gear 306, multiple connecting plates 308 move, simultaneously causing the elastic scraper 310 to slide around the surface of the discharge port 207 at the small end of the drum 205.The elastic scraper 310 pushes out the object blocking the discharge port 207. During the movement of the connecting plate 308, the scraper 311 on the outer side of the connecting plate 308 comes into contact with stubborn objects on the inner wall of the support block 101. Through the obstruction of these objects, the scraper 311 is pushed, causing the connecting plate 308 to rotate around the connection point of the third gear 306. The rotation of the connecting plate 308 pushes the slider 314 to move, simultaneously moving the connecting rod 312. Since the outer sides of both connecting plates 308 are connected with the same structure and one end of the two connecting rods 312 is connected, when one connecting rod 312 moves, it will rotate around the outer side of the other connecting rod 312. The rotation of the connecting rod 312 pushes the slider 314 to move along the inside of the groove 309. The movement of the slider 314 compresses the spring 313 inside the groove 309, and the elasticity of the spring 313 increases the pushing force of the connecting rod 312 on the object.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A centrifugal solid-liquid separation and weight reduction machine for oilfield sludge, comprising a base (1), characterized in that: The outer wall of the base (1) is fixedly connected to a plurality of support blocks (101), and the outer wall of the support blocks (101) is fixedly connected to a shell (102). The inner wall of the support block (101) is provided with a separation mechanism (2), which includes a motor (201). The outer wall of the motor (201) is fixedly connected to the inner wall of the support block (101). The output end of the motor (201) is fixedly connected to a connecting shaft (202) via a coupling. The outer wall of the connecting shaft (202) is fixedly connected to a first crown gear (203). The outer wall of the first crown gear (203) meshes with a first gear (204). The outer wall of the first gear (204) is fixedly connected to a first gear (204). A rotating drum (205) is connected to the inner wall of the rotating drum (205), which has several discharge ports (207). The outer wall of the first crown gear (203) is meshed with a second gear (209). The outer wall of the second gear (209) is fixedly connected to a connecting pipe (210). The inner wall of the connecting pipe (210) has a discharge hole (211). The outer wall of the connecting pipe (210) is fixedly connected to a turbine blade (206). The outer wall of the turbine blade (206) is rotatably connected to the inner wall of the rotating drum (205).

2. The centrifugal solid-liquid separation and volume reduction machine for oilfield sludge according to claim 1, characterized in that, The outer wall of the connecting pipe (210) away from the second gear (209) is rotatably connected to the feed hopper (208). The outer wall of the feed hopper (208) is fixedly connected to the outer wall of the support block (101). The outer wall of the first crown gear (203) is rotatably connected to the inner wall of the support block (101). The outer wall of the drum (205) is rotatably connected to the inner wall of the outer shell (102). The inner wall of the support block (101) is provided with a discharge port (212). The inner wall of the support block (101) is provided with an auxiliary mechanism (3).

3. The centrifugal solid-liquid separation and weight reduction machine for oilfield sludge according to claim 2, characterized in that, The auxiliary mechanism (3) includes a first pulley (301), the outer wall of the first pulley (301) is fixedly connected to the outer wall of the connecting shaft (202), the inner wall of the first pulley (301) is connected to a belt (302), the outer wall of the belt (302) away from the first pulley (301) is connected to a second pulley (303), the inner wall of the second pulley (303) is fixedly connected to a positioning shaft (304), the outer wall of the positioning shaft (304) is rotatably connected to the outer wall of the support block (101), and the outer wall of the positioning shaft (304) away from the support block (101) is fixedly connected to a second crown gear (305).

4. The centrifugal solid-liquid separation and weight reduction machine for oilfield sludge according to claim 3, characterized in that, The outer wall of the second crown gear (305) is meshed with a third gear (306), and the outer wall of the third gear (306) is rotatably connected to a baffle plate (307). The outer wall of the baffle plate (307) is fixedly connected to the outer wall of the support block (101).

5. The centrifugal solid-liquid separation and weight reduction machine for oilfield sludge according to claim 4, characterized in that, The outer wall of the third gear (306) is rotatably connected to several connecting plates (308), the inner wall of the connecting plate (308) is provided with a sliding groove (309), and a spring (313) is fixedly connected to the inner wall of the connecting plate (308).

6. The oilfield sludge centrifugal solid-liquid separation and volume reduction machine according to claim 5, characterized in that, A slider (314) is fixedly connected to the outer wall of the end of the spring (313) away from the connecting plate (308), and the outer wall of the slider (314) is slidably connected to the inner wall of the groove (309).

7. The oilfield sludge centrifugal solid-liquid separation and volume reduction machine according to claim 6, characterized in that, The bottom outer wall of the connecting plate (308) is rotatably connected to an elastic scraper (310), and the outer wall of the elastic scraper (310) is slidably connected to the outer wall of the drum (205).

8. The centrifugal solid-liquid separation and weight reduction machine for oilfield sludge according to claim 7, characterized in that, The outer wall of the connecting plate (308) is fixedly connected to a scraper (311), the outer wall of the scraper (311) is slidably connected to the inner wall of the support block (101), and a number of collection boxes (315) are slidably connected to the bottom of the inner wall of the base (1).