Novel centrifugal machine

Abstract

The utility model relates to the technical field of drilling fluid centrifugal machines, and discloses a novel centrifugal machine which has the advantage of good filtering effect, after drilling fluid flows into a filter screen I in a shell through a rotary drum, a motor is started to drive a belt pulley II to rotate, the belt pulley II drives a belt pulley I to rotate when rotating, and the rotary drum rotates when the belt pulley I rotates. Then the first filter screen and the second filter screen rotate at a high speed, drilling fluid in the first filter screen is splashed to the periphery through centrifugal force, a large solid phase in the drilling fluid cannot penetrate through the first filter screen, and a liquid phase with tiny impurities penetrates through the first filter screen and continues to be filtered by the second filter screen; at the moment, fine impurities in the drilling fluid are filtered out through the second filter screen with the small filter holes, the filtered drilling fluid is discharged out of the shell through the liquid outlet pipe, and the impurities filtered out of the first filter screen and the second filter screen are discharged out of the shell through the slag outlet. The problem that fine impurities are easy to remain after the drilling fluid is filtered once, so that the next use of the drilling equipment is influenced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling fluid centrifuges, in particular to a new type of centrifuge. Background Art

[0002] Drilling fluid centrifuge (petroleum centrifuge) Drilling fluid centrifuge is a five-stage solid phase particle control device in the drilling mud solid control system. It uses the centrifugal sedimentation separation principle to separate the suspension in the drilling fluid. It is an important device for solid phase particle separation and control in the field of environmentally friendly waste mud treatment to balance the viscosity and specific gravity of the drilling fluid, recover the heavy metal powder in the drilling fluid, and save drilling costs. Principle: The drilling centrifuge uses the high-speed rotation of the drum to drive the mud entering the drum to rotate at high speed. The mud is thrown onto the wall of the drum to form a liquid circle. The solid phase particles in the liquid circle are subjected to the centrifugal force hundreds or even thousands of times greater than their own gravity. The drilling centrifuge overcomes the resistance of the mud viscosity and quickly settles to the inner wall of the drum to form a solid phase layer, and the liquid forms a liquid phase layer. The ratio of the centrifugal force to the gravity of the solid phase particles in the liquid circle of the drilling centrifuge is called the separation factor of the centrifuge. A centrifuge with a large separation factor can separate finer particles from the mud.

[0003] According to the Chinese utility model disclosure CN217421103U, a centrifuge for drilling fluid is disclosed, comprising: an equipment mounting platform, on which a high-efficiency conveying centrifugal structure is mounted; the high-efficiency conveying centrifugal structure comprises: a pair of first supporting legs, a centrifugal tank, a centrifugal chamber, a driving supporting centrifugal assembly, a driving connecting gear and a fixed pipe feeding assembly; the utility model relates to the technical field of centrifugal equipment, and solves the problem that the existing drilling fluid has no perfect circulation treatment equipment, a large amount of impurities contained in the drilling fluid will cause wear of the equipment, and will cause damage to the equipment for a long time, affecting the overall progress of drilling.

[0004] The centrifuge in this utility model can only filter the drilling fluid once, and some fine impurities cannot be filtered out, which affects the subsequent use of the drilling fluid. In order to solve this problem, we propose a new centrifuge. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a novel centrifuge with the advantage of good filtering effect, which solves the problem that fine impurities are easily left after the drilling fluid is filtered once, thereby affecting the next use of the drilling equipment.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solution: a novel centrifuge, comprising an external frame, wherein the external frame comprises:

[0009] The outer shell has support legs symmetrically arranged at the bottom thereof, and a filter assembly is arranged on the outer shell, and the filter assembly comprises:

[0010] A rotating drum, penetrating through and rotatably connected to the right side wall of the shell;

[0011] A pulley 1, sleeved on the outside of the drum;

[0012] The motor is arranged on the top surface of the support leg of the right part through the support plate;

[0013] A second pulley is fixedly connected to the output end of the motor and is provided with the same belt as the first pulley;

[0014] A filter screen 1 is arranged inside the housing, and a right end of the filter screen is sleeved on the outer wall of the drum;

[0015] The second filter screen is arranged inside the shell, and its right end is sleeved on the outer wall of the drum and surrounds the first filter screen. The filter holes in the second filter screen are smaller than the filter holes in the first filter screen.

[0016] Preferably, a slag outlet is provided on the left side of the filter screen 1 and the filter screen 2.

[0017] Preferably, the filter screen 1 and the filter screen 2 are both designed to be inclined.

[0018] Preferably, a liquid outlet pipe is provided through the bottom of the shell, a bracket is provided on the right side wall of the shell, a liquid inlet pipe is passed through the right side of the bracket, the bottom end of the liquid inlet pipe is located in the rotating drum, a coarse filter screen is provided on the inner wall of the liquid inlet pipe, and the coarse filter screen is disassembled by sliding.

[0019] Preferably, a sealing door is hingedly connected to the right side wall of the shell near the slag outlet.

[0020] Preferably, the left bottom of the second filter is slidably connected to the left inner wall of the shell via a slider, and the left inner wall of the shell is provided with an annular sliding groove for the movement of the second filter.

[0021] Preferably, the sealed door is made of visual glass, and a handle is provided on the outer side wall of the sealed door.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the utility model provides a new type of centrifuge, which has the following beneficial effects:

[0024] The centrifuge has the advantage of good filtering effect. The operator pours drilling fluid from the liquid inlet pipe, and the drilling fluid flows into the filter screen 1 inside the shell through the drum. The motor is started, and the motor drives the pulley 2 to rotate. When the pulley 2 rotates, it drives the pulley 1 to rotate. When the pulley 1 rotates, the drum rotates, and then the filter screens 1 and 2 rotate at high speed. The drilling fluid inside the filter screen 1 is splashed around by centrifugal force. The larger solid phase in the drilling fluid cannot pass through the filter screen 1, and the liquid phase with tiny impurities passes through the filter screen 1 and continues to be filtered by the filter screen 2. At this time, the filter screen 2 with a smaller filter hole filters out the fine impurities in the drilling fluid. The filtered drilling fluid is discharged from the shell through the liquid outlet pipe, and the impurities filtered out of the filter screen 1 and the filter screen 2 are discharged from the shell through the slag outlet. The problem that fine impurities are easily left after the drilling fluid is filtered once, thereby affecting the next use of the drilling equipment is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structural section of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the utility model;

[0027] Figure 3 It is a left side schematic diagram of the sealing door structure in the utility model.

[0028] In the figure:

[0029] 1. External frame; 11. Shell; 12. Support legs; 13. Liquid outlet pipe; 14. Bracket; 15. Liquid inlet pipe; 16. Coarse filter;

[0030] 2. Filter assembly; 21. Rotating drum; 22. Pulley 1; 23. Pulley 2; 24. Motor; 25. Filter screen 1; 26. Filter screen 2; 27. Slag outlet;

[0031] 3. Seal the door. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] See also Figure 1-3A novel centrifuge includes an external frame 1, the external frame 1 includes: a shell 11, a support leg 12 is symmetrically arranged at the bottom, a filter assembly 2 is arranged on the shell 11, and the filter assembly 2 includes: a drum 21, which penetrates and is rotatably connected to the right side wall of the shell 11, a pulley 1 22, which is sleeved on the outside of the drum 21, a motor 24, which is arranged on the top surface of the support leg 12 of the right part through a support plate, a pulley 23, which is fixedly connected to the output end of the motor 24, and the same belt is sleeved on the outside of the pulley 1 22, a filter screen 1 25, which is arranged inside the shell 11, and its right end is sleeved on the outer wall of the drum 21, and a filter screen 26, which is arranged inside the shell 11, and its right end is sleeved on the outer wall of the drum 21, and surrounds the filter screen 1 25, and the filter hole in the filter screen 26 is smaller than the filter hole in the filter screen 1 25. The filter screen 1 25 and the filter screen 2 26 are both provided with a slag outlet 27 on the left side. The filter screen 1 25 and the filter screen 2 26 are both tilted. A liquid outlet pipe 13 is provided through the bottom of the housing 11, a bracket 14 is provided on the right side wall of the housing 11, a liquid inlet pipe 15 is provided on the right side of the bracket 14, the bottom end of the liquid inlet pipe 15 is located in the drum 21, a coarse filter screen 16 is provided on the inner wall of the liquid inlet pipe 15, and the coarse filter screen 16 is disassembled by sliding.

[0035] When ready for use, the operator pours drilling fluid into the liquid inlet pipe 15, and the drilling fluid flows into the filter screen 1 25 inside the housing 11 through the rotating drum 21, and the motor 24 is started. The motor 24 drives the pulley 2 23 to rotate. Since the pulley 23 is connected to the pulley 1 22 through the same belt, the pulley 1 22 is driven to rotate when the pulley 23 rotates. When the pulley 1 22 rotates, the rotating drum 21 rotates, and then the filter screen 1 25 and the filter screen 2 26 rotate at high speed, and the drilling fluid inside the filter screen 1 25 is splashed around by the centrifugal force. The larger solid phase in the drilling fluid cannot pass through the filter screen 1 25, and the liquid phase with tiny impurities passes through the filter screen 1 25 and continues to be filtered by the filter screen 2 26. At this time, the filter screen 2 26 with a smaller filter hole filters out the fine impurities in the drilling fluid, and the filtered drilling fluid is discharged from the housing 11 from the liquid outlet pipe 13, and the impurities filtered out of the filter screen 1 25 and the filter screen 2 26 are discharged from the housing 11 through the slag outlet 27 at the left end. The support legs 12 support the housing 11 and the motor 24, and the bracket 14 supports the liquid inlet pipe 15. The coarse filter 16 arranged in the liquid inlet pipe 15 performs preliminary filtration on the drilling fluid to prevent the filtering pressure of the filter assembly 2 from being too high. The coarse filter 16 can be pulled out by sliding to facilitate its cleaning or replacement.

[0036] Embodiment 2

[0037] On the basis of the first embodiment, an auxiliary function is added.

[0038] See also Figure 1-3The right side wall of the shell 11 is hinged with a sealing door 3 near the slag outlet 27. The left bottom of the filter screen 26 is slidably connected to the left inner wall of the shell 11 through a slider, and the left inner wall of the shell 11 is provided with an annular sliding groove for the movement of the filter screen 26. The sealing door 3 is made of visual glass, and a handle is provided on the outer side wall of the sealing door 3.

[0039] The operator opens the sealed door 3 through the handle on the outside of the sealed door 3 to facilitate the cleaning of impurities in the slag outlet 27. The sealed door 3 made of a visual glass door is convenient for the operator to observe the accumulation of impurities and clean them. The filter screen 26 slides on the inner wall of the housing 11 through the slider when rotating, which increases the stability of the filter screen 26 when rotating.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of centrifuge, characterized in that: The invention comprises an external frame (1), wherein the external frame (1) comprises: The housing (11) has support legs (12) symmetrically arranged at the bottom thereof. The housing (11) is provided with a filter assembly (2), and the filter assembly (2) comprises: A rotating drum (21) penetrates through and is rotatably connected to the right side wall of the housing (11); A pulley (22) sleeved on the outside of the rotating drum (21); A motor (24) is arranged on the top surface of the right support leg (12) through a support plate; A second pulley (23) is fixedly connected to the output end of the motor (24) and is provided with the same belt as the first pulley (22); A filter screen 1 (25) is arranged inside the housing (11), and its right end is sleeved on the outer wall of the drum (21); Filter screen 2 (26) is arranged inside the housing (11), with its right end sleeved on the outer wall of the drum (21) and surrounding filter screen 1 (25), and the filter holes in filter screen 2 (26) are smaller than the filter holes in filter screen 1 (25).

2. A novel centrifuge according to claim 1, characterized in that: The left sides of the filter screen 1 (25) and the filter screen 2 (26) are both provided with slag outlets (27).

3. A novel centrifuge according to claim 2, characterized in that: The filter screen 1 (25) and the filter screen 2 (26) are both designed to be inclined.

4. A novel centrifuge according to claim 3, characterized in that: A liquid outlet pipe (13) is provided through the bottom of the outer shell (11), a bracket (14) is provided on the right side wall of the outer shell (11), a liquid inlet pipe (15) is provided through the right side of the bracket (14), the bottom end of the liquid inlet pipe (15) is located in the rotating drum (21), a coarse filter screen (16) is provided on the inner wall of the liquid inlet pipe (15), and the coarse filter screen (16) is disassembled by sliding.

5. A novel centrifuge according to claim 4, characterized in that: A sealing door (3) is hingedly connected to the right side wall of the shell (11) near the slag outlet (27).

6. A novel centrifuge according to claim 5, characterized in that: The left bottom of the second filter screen (26) is slidably connected to the left inner wall of the shell (11) via a slider, and the left inner wall of the shell (11) is provided with an annular sliding groove for the movement of the second filter screen (26).

7. A novel centrifuge according to claim 6, characterized in that: The sealed door (3) is made of visible glass material, and a handle is provided on the outer side wall of the sealed door (3).

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