CN214808943U

CN214808943U - Petroleum drilling fluid sieving mechanism

Info

Publication number: CN214808943U
Application number: CN202023296497.6U
Authority: CN
Inventors: 李萧杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-23
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an oil drilling fluid sieving mechanism, be the rose box of opening setting including the top, the top fixed mounting of rose box has the case lid, and establish to the toper structure the inboard bottom of rose box, the bottom intercommunication of rose box is fixed with the discharging pipe, and the bottom fixed mounting of discharging pipe has the valve, be equipped with the toper feeder hopper in the rose box, the top of toper feeder hopper extends to the top of case lid, and the fixed cover of case lid is established on the toper feeder hopper, and the fixed cover is equipped with the first filter screen that the slope set up and is located the second filter screen of first filter screen below in the rose box. The utility model relates to a rationally, be convenient for carry out multistage filtration to the drilling fluid, be convenient for shake the collection that falls to solid impurity automatically when filtering the screening, reduce because of solid impurity piles up the jam that causes, improve screening filtration efficiency, and can take out the clearance fast with the solid impurity who filters off, satisfy the user demand.

Description

Petroleum drilling fluid sieving mechanism

Technical Field

The utility model relates to a drilling fluid screening installation technical field especially relates to an oil drilling fluid sieving mechanism.

Background

Petroleum plays a very important role in economic construction, is the foundation of national economy of China, and occupies an important position in developing various cares, the petrochemical industry is the basic industry of China, the most common drilling fluid in the process of exploiting the petroleum is drilling fluid, the drilling fluid (originally called mud) refers to working fluid used in drilling, and can be liquid or gas, so the drilling fluid is exactly called drilling fluid, and a circulating flushing medium used in holes in the process of drilling the petroleum is also called drilling flushing fluid; the drilling fluid can be divided into clear water, slurry, clay-phase-free flushing fluid, emulsion, foam, compressed air and the like according to the components; the clear water is the earliest drilling fluid of use, need not to handle, and convenient to use is applicable to complete stratum and the area that the water source is sufficient, and mud is the drilling fluid of wide use, and the unstable stratum of pore wall such as loose, crack development, the easy piece that falls that collapses, water swelling spalling need screen after the drilling fluid uses and get rid of impurity, recycles, consequently needs to use sieving mechanism.

The solid impurities in the drilling fluid are mostly screened out through a screen, the solid impurities screened out cannot be timely shaken out in the screening process, a large amount of solid impurities are accumulated at the top of the screen, the screen is easily blocked, the screening efficiency is influenced, the multi-stage screening cannot be achieved, the screening efficiency is low, the use requirement cannot be met, and therefore the petroleum drilling fluid screening device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an oil drilling fluid screening device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a petroleum drilling fluid screening device comprises a filter box with an opening arranged at the top, wherein a box cover is fixedly arranged at the top of the filter box, a conical structure is arranged at the bottom of the inner side of the filter box, a discharging pipe is communicated and fixed at the bottom of the filter box, a valve is fixedly arranged at the bottom end of the discharging pipe, a conical feeding hopper is arranged in the filter box, the top of the conical feeding hopper extends to the upper part of the box cover, the box cover is fixedly sleeved on the conical feeding hopper, a first filter screen which is obliquely arranged and a second filter screen which is positioned below the first filter screen are fixedly sleeved in the filter box, two discharging holes are formed in the inner wall of the right side of the filter box, the inner walls of the bottoms of the two discharging holes are respectively arranged as inclined planes and are respectively flush with the top of the first filter screen and the top of the second filter screen, two support plates are fixedly arranged at the right side of the filter box, and the top of the support plates is movably contacted with a collecting box with an opening arranged at the top, the right sides of the two collecting boxes are fixedly provided with the same connecting plate, the left side of the connecting plate is fixedly provided with two clamping rods, the supporting plate is movably sleeved on the corresponding clamping rods, the tops of the collecting boxes are flush with the inner walls of the bottoms of the corresponding discharge holes, the right side of the connecting plate is fixedly provided with a U-shaped handle, the bottoms of the first filter screen and the second filter screen are movably contacted with a collision block with an arc-shaped top, the bottom of the collision block is fixedly provided with a movable rod, a filter box is provided with a cavity, the left ends of the two movable rods both penetrate through the cavity and extend to the left side of the filter box and are fixedly provided with the same vertical rod, a baffle is sleeved in the cavity in a sliding manner, the baffle is fixedly sleeved on the two movable rods, the left bottom of the filter box is fixedly provided with an L-shaped positioning rod, the vertical rod is sleeved on the L-shaped positioning rod in a sliding manner, and a compression spring in a compression state is fixedly arranged between the bottom end of the vertical rod and the inner wall of the L-shaped positioning rod, the top fixed mounting of montant has L shape pole, the top of L shape pole extends to the top of case lid, the top fixed mounting of case lid has the dead lever, the left side fixed mounting of dead lever has driving motor, driving motor's output shaft front end fixed mounting eccentric wheel, the top of L shape pole is inlayed and is equipped with the ball, the ball is located the below of eccentric wheel and cooperatees with the eccentric wheel, first through-hole has been seted up on the right side of dead lever, fixed mounting has the rectangular pole between the top inner wall of first through-hole and the bottom inner wall, the right-hand member of L shape pole extends to in the first through-hole, L shape pole slip cap is established on the rectangular pole.

Preferably, the left side of discharge opening is equipped with the baffle of the slope setting of fixed mounting on the filter box right side inner wall.

Preferably, the right side of the supporting plate is provided with a clamping groove, and the clamping groove is clamped with the corresponding clamping rod.

Preferably, the distance between the bottom of the output shaft of the driving motor and the top of the ball is smaller than the distance between the top of the output shaft of the driving motor and the top of the eccentric wheel.

Preferably, two rectangular holes which are communicated with the cavity in a cross mode are formed in the inner wall of the left side of the filter box, and the inner wall of the front side and the inner wall of the rear side of each rectangular hole are connected with the front side and the rear side of the baffle in a sliding mode respectively.

Preferably, the bottom end of the vertical rod is provided with a rectangular groove, and the inner wall of the rectangular groove is in sliding connection with the outer side of the L-shaped positioning rod.

Compared with the prior art, the beneficial effects of the utility model are that:

through a filter box, a box cover, a first filter screen, a second filter screen, a discharge hole, a support plate, a connecting plate, a collecting box, a clamping rod, a collision block, a moving rod, a baffle plate, a cavity, a vertical rod, an L-shaped positioning rod, a compression spring, an L-shaped rod, a driving motor, an eccentric wheel and a fixed rod which are matched with a first through hole, drilling fluid is poured into a conical feed hopper, the drilling fluid sequentially passes through the first filter screen and the second filter screen to enter the bottom of the second filter screen, the first filter screen performs first filtration on the drilling fluid, the second filter screen performs second filtration on the drilling fluid, filtered solid impurities are respectively shielded at the tops of the first filter screen and the second filter screen, the driving motor is started to drive the eccentric wheel to gradually contact with and perform collision extrusion on the eccentric wheel during rotation of the first half circle, the force of the collision extrusion drives the L-shaped rod to move downwards through the balls, the L-shaped rod drives the vertical rod to slide downwards on the L-shaped positioning rod and compress the compression spring, the vertical rod drives the two collision blocks to downwards separate from the first filter screen and the second filter screen respectively through the two moving rods, when the eccentric wheel rotates for the second half turn, the extrusion force on the balls is gradually released and separated from the balls, at the moment, the elasticity of the compression spring drives the two moving rods to upwards move through the vertical rod, the two moving rods drive the two collision blocks to upwards collide with the bottoms of the corresponding first filter screen and the second filter screen respectively, so that the first filter screen and the second filter screen vibrate, the vibration force is matched with the inclined arrangement of the first filter screen and the second filter screen, solid impurities fall into the collection box through corresponding discharge holes along the inclined surfaces of the first filter screen and the second filter screen respectively, the eccentric wheel continuously rotates, and the collision blocks continuously and circularly collide and knock the first filter screen and the second filter screen, and then reach the purpose that the automatic solid impurity that shakes fell, when the solid impurity that needs will collect takes out, pull the U-shaped handle right and drive two through the connecting plate and collect the box and take off right, can pour out the clearance with solid impurity.

The utility model relates to a rationally, be convenient for carry out multistage filtration to the drilling fluid, be convenient for shake the collection that falls to solid impurity automatically when filtering the screening, reduce because of solid impurity piles up the jam that causes, improve screening filtration efficiency, and can take out the clearance fast with the solid impurity who filters off, satisfy the user demand.

Drawings

Fig. 1 is a schematic sectional structural view of an oil drilling fluid screening device provided by the utility model;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the filter box comprises a filter box 1, a box cover 2, a first filter screen 3, a second filter screen 4, a discharge hole 5, a support plate 6, a connecting plate 7, a collecting box 8, a clamping rod 9, a collision block 10, a movable rod 11, a baffle 12, a cavity 13, a vertical rod 14, a positioning rod 15L-shaped, a compression spring 16, a rod 17L-shaped, a driving motor 18, an eccentric wheel 19, a fixing rod 20 and a first through hole 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an oil drilling fluid screening device comprises a filter box 1 with an opening at the top, a box cover 2 is fixedly installed at the top of the filter box 1, a conical structure is arranged at the bottom of the inner side of the filter box 1, a discharge pipe is communicated and fixed at the bottom of the filter box 1, a valve is fixedly installed at the bottom end of the discharge pipe, a conical feed hopper is arranged in the filter box 1, the top of the conical feed hopper extends to the upper part of the box cover 2, the box cover 2 is fixedly sleeved on the conical feed hopper, a first filter screen 3 which is obliquely arranged and a second filter screen 4 which is positioned below the first filter screen 3 are fixedly sleeved in the filter box 1, two discharge holes 5 are formed in the inner wall of the right side of the filter box 1, the inner walls of the bottoms of the two discharge holes 5 are respectively arranged as inclined planes and are respectively flush with the top of the first filter screen 3 and the top of the second filter screen 4, two support plates 6 are fixedly installed at the right side of the filter box 1, the top of the supporting plate 6 is movably contacted with a collecting box 8 with the top arranged as an opening, the right sides of the two collecting boxes 8 are fixedly provided with the same connecting plate 7, the left side of the connecting plate 7 is fixedly provided with two clamping rods 9, the supporting plate 6 is movably sleeved on the corresponding clamping rods 9, the top of the collecting box 8 is flush with the inner wall of the bottom of the corresponding discharge hole 5, the right side of the connecting plate 7 is fixedly provided with a U-shaped handle, the bottom of the first filter screen 3 and the bottom of the second filter screen 4 are both movably contacted with an impact block 10 with the top in an arc structure, the bottom of the impact block 10 is fixedly provided with a movable rod 11, the filter box 1 is provided with a cavity 13, the left ends of the two movable rods 11 both penetrate through the cavity 13 to extend to the left side of the filter box 1 and are fixedly provided with a same vertical rod 14, a baffle 12 is sleeved in the cavity 13 in a sliding manner, and the baffle 12 is fixedly sleeved on the two movable rods 11, an L-shaped positioning rod 15 is fixedly installed at the bottom of the left side of the filter box 1, a vertical rod 14 is slidably sleeved on the L-shaped positioning rod 15, a compression spring 16 in a compressed state is fixedly installed between the bottom end of the vertical rod 14 and the inner wall of the bottom of the L-shaped positioning rod 15, an L-shaped rod 17 is fixedly installed at the top end of the vertical rod 14, the top of the L-shaped rod 17 extends to the upper side of the box cover 2, a fixed rod 20 is fixedly installed at the top of the box cover 2, a driving motor 18 is fixedly installed at the left side of the fixed rod 20, an eccentric wheel 19 is fixedly installed at the front end of an output shaft of the driving motor 18, a ball is embedded at the top of the L-shaped rod 17, the ball is located below the eccentric wheel 19 and matched with the eccentric wheel 19, a first through hole 21 is formed in the right side of the fixed rod 20, a rectangular rod is fixedly installed between the inner wall of the top of the first through hole 21 and the inner wall of the bottom, and the right end of the L-shaped rod 17 extends into the first through hole 21, the L shape pole 17 slip cover is established on the rectangle pole, the utility model relates to a rationally, be convenient for carry out multistage filtration to the drilling fluid, be convenient for shake the collection that falls to solid impurity automatically when filtering the screening, reduce because of solid impurity piles up the jam phenomenon who causes, improve screening filtration efficiency, and can take out the clearance fast with the solid impurity who filters off, satisfy the user demand.

In the utility model, the left side of the discharge hole 5 is provided with a guide plate which is fixedly arranged on the inner wall of the right side of the filter box 1 and is obliquely arranged, the right side of the filter box 1 is provided with two first clamping grooves, the right side of the support plate 6 is provided with a clamping groove which is clamped with the corresponding clamping rod 9, the distance between the bottom of the output shaft of the driving motor 18 and the top of the ball is smaller than the distance between the top of the output shaft of the driving motor 18 and the top of the eccentric wheel 19, the left side inner wall of the filter box 1 is provided with two rectangular holes which are communicated with the cavity 13 in a crossing way, the front side inner wall and the rear side inner wall of the rectangular hole are respectively connected with the front side and the rear side of the baffle 12 in a sliding way, the bottom end of the vertical rod 14 is provided with a rectangular groove, and the inner wall of the rectangular groove is connected with the outer side of the L-shaped positioning rod 15 in a sliding way, the utility model has reasonable design, is convenient for multi-stage filtration of drilling fluid, and is convenient for automatically shaking and collecting solid impurities when filtering, reduce because of the solid impurity piles up the jam phenomenon who causes, improve screening filtration efficiency, and can get the clearance fast with the solid impurity who filters off, satisfy the user demand.

The working principle is as follows: when the drilling fluid filtering device is used, during filtering operation, drilling fluid is poured into the conical feed hopper, the drilling fluid sequentially passes through the first filter screen 3 and the second filter screen 4 and enters the bottom of the second filter screen 4, the first filter screen 3 performs first filtering on the drilling fluid, the second filter screen 4 performs second filtering on the drilling fluid, and the filtering quality is improved in a two-time filtering mode;

the filtered solid impurities are respectively shielded at the top parts of the first filter screen 3 and the second filter screen 4, the driving motor 18 is simultaneously started, the output shaft of the driving motor 18 drives the eccentric wheel 19 to rotate, the eccentric wheel 19 gradually contacts with the balls and performs collision extrusion on the balls when rotating for the first half circle, the extrusion force drives the balls to move downwards, the balls drive the L-shaped rods 17 to move downwards, the L-shaped rods 17 drive the vertical rods 14 to slide downwards on the L-shaped positioning rods 15 and compress the compression springs 16, the vertical rods 14 drive the two movable rods 11 to move downwards, the two movable rods 11 simultaneously drive the shielding plates 12 to slide downwards in the cavities 13, the movable rods 11 drive the corresponding collision blocks 10 to move downwards, the two collision blocks 10 are respectively separated from the first filter screen 3 and the second filter screen 4 downwards, when the eccentric wheel 19 rotates for the second half circle, the extrusion force on the balls is gradually released and separated from the balls, at the moment, the elastic force of the compression spring 16 in a compressed state drives the vertical rod 14 to move upwards, the vertical rod 14 drives the two moving rods 11 to move upwards, the moving rods 11 drive the corresponding impact blocks 10 to move upwards, the two impact blocks 10 respectively collide with the bottoms of the corresponding first filter screen 3 and the second filter screen 4 while moving upwards, under the action of impact force, the first filter screen 3 and the second filter screen 4 are vibrated, the vibration force is matched with the inclined arrangement of the first filter screen 3 and the second filter screen 4, so that solid impurities on the tops of the first filter screen 3 and the second filter screen 4 respectively drop into the collecting box 8 through the corresponding discharge holes 5 along the inclined surfaces of the first filter screen 3 and the second filter screen 4, the eccentric wheel 19 continuously rotates, and the impact blocks 10 continuously and circularly collide and knock the first filter screen 3 and the second filter screen 4, and further the purpose of automatically shaking and dropping the solid impurities is achieved, the solid impurities can be automatically shaken off and collected while being filtered and screened, so that the blocking phenomenon caused by accumulation of the solid impurities is reduced, and the screening and filtering efficiency is improved;

when the solid impurity that needs will collect takes out, pulling the U-shaped handle right and driving connecting plate 7 and move right, connecting plate 7 drives two and collects box 8 and moves right, and connecting plate 7 drives two kellies 9 and shifts out from the draw-in groove that corresponds respectively, can take off collection box 8 and pour out the clearance with solid impurity.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The petroleum drilling fluid screening device comprises a filter box (1) with an opening at the top, wherein a box cover (2) is fixedly arranged at the top of the filter box (1), a conical structure is arranged at the bottom of the inner side of the filter box (1), a discharging pipe is communicated and fixed at the bottom of the filter box (1), and a valve is fixedly arranged at the bottom end of the discharging pipe, and is characterized in that a conical feeding hopper is arranged in the filter box (1), the top of the conical feeding hopper extends to the upper part of the box cover (2), the box cover (2) is fixedly sleeved on the conical feeding hopper, a first filter screen (3) which is obliquely arranged and a second filter screen (4) which is positioned below the first filter screen (3) are fixedly sleeved in the filter box (1), two discharging holes (5) are formed in the inner wall of the right side of the filter box (1), the inner walls of the two discharging holes (5) are arranged on an inclined plane and are flush with the top of the first filter screen (3) and the top of the second filter screen (4) respectively, the right side fixed mounting of rose box (1) has two backup pads (6), the top movable contact of backup pad (6) has collection box (8) that the top set up for the opening, the right side fixed mounting of two collection box (8) has same connecting plate (7), the left side fixed mounting of connecting plate (7) has two kellies (9), backup pad (6) movable sleeve is established on corresponding kellies (9), the top of collecting box (8) and the bottom inner wall parallel and level of corresponding discharge opening (5), the right side fixed mounting of connecting plate (7) has the U-shaped handle, the equal movable contact in bottom of the bottom of first filter screen (3) and the bottom of second filter screen (4) has collision piece (10) that the top is the arc structure, the bottom fixed mounting of collision piece (10) has carriage release lever (11), cavity (13) has been seted up on rose box (1), the left end of two carriage release levers (11) all runs through cavity (13) and extends to the left side of rose box (1) and fixed mounting has same perpendicular to erect A rod (14), a baffle (12) is slidably sleeved in the cavity (13), the baffle (12) is fixedly sleeved on the two movable rods (11), an L-shaped positioning rod (15) is fixedly installed at the bottom of the left side of the filter box (1), a vertical rod (14) is slidably sleeved on the L-shaped positioning rod (15), a compression spring (16) in a compression state is fixedly installed between the bottom end of the vertical rod (14) and the inner wall of the bottom of the L-shaped positioning rod (15), an L-shaped rod (17) is fixedly installed at the top end of the vertical rod (14), the top of the L-shaped rod (17) extends to the upper part of the box cover (2), a fixed rod (20) is fixedly installed at the top part of the box cover (2), a driving motor (18) is fixedly installed at the left side of the fixed rod (20), an eccentric wheel (19) is fixedly installed at the front end of an output shaft of the driving motor (18), a ball is embedded at the top part of the L-shaped rod (17), the ball is located below the eccentric wheel (19) and is matched with the eccentric wheel (19), a first through hole (21) is formed in the right side of the fixed rod (20), a rectangular rod is fixedly installed between the top inner wall and the bottom inner wall of the first through hole (21), the right end of the L-shaped rod (17) extends into the first through hole (21), and the L-shaped rod (17) is slidably sleeved on the rectangular rod; a guide plate which is fixedly arranged on the inner wall of the right side of the filter box (1) and is obliquely arranged is arranged on the left side of the discharge hole (5); the right side of the supporting plate (6) is provided with a clamping groove, and the clamping groove is clamped with the corresponding clamping rod (9).

2. The device for screening the petroleum drilling fluid as recited in claim 1, wherein the distance between the bottom of the output shaft of the driving motor (18) and the top of the ball is smaller than the distance between the top of the output shaft of the driving motor (18) and the top of the eccentric wheel (19).

3. The petroleum drilling fluid screening device according to claim 1, wherein the inner wall of the left side of the filter box (1) is provided with two rectangular holes which are in cross communication with the cavity (13), and the inner wall of the front side and the inner wall of the rear side of each rectangular hole are respectively in sliding connection with the front side and the rear side of the baffle (12).

4. The petroleum drilling fluid screening device of claim 1, wherein the bottom end of the vertical rod (14) is provided with a rectangular groove, and the inner wall of the rectangular groove is in sliding connection with the outer side of the L-shaped positioning rod (15).