A drilling cuttings sampling and separating device

Abstract

The utility model relates to drilling rock debris and waste liquid processing technical field, concretely is a kind of drilling rock debris sampling separation device. Including separation outer box, rotating inner tube, hopper and multiple first filter screen;Rotating inner tube rotation is installed in the inboard of separation outer box, and power assembly for driving rotating inner tube rotation is installed on separation outer box;Multiple first filter screen is side by side arranged in the inboard of rotating inner tube, and multiple deslagging holes are set up on rotating inner tube;Separating cover is set between adjacent two first filter screens, and the bottom end of multiple separating covers is vertically connected with first liquid discharge pipe;The bottom end of rotating inner tube is connected with liquid guide pipe assembly;Hopper is located in the top end of rotating inner tube, and the inboard bottom end of hopper is provided with bottom plate, and the above of multiple first filter screen is provided with discharge pipe.This technical scheme has the advantages of fast separation speed and good separation effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling rock debris and waste liquid processing technical field, especially a kind of drilling rock debris sampling separation device. BACKGROUND

[0002] Rock debris description refers to the description of rock debris generated by breaking rock layer by drill bit during drilling process through naked eye observation or simple field analysis test, and drilling fluid is mainly composed of liquid phase, solid phase and chemical treatment agent. Since the main function of drilling fluid is to carry rock debris from well bottom to ground, the generated drilling waste liquid contains a large amount of solid phase particles, such as rock debris and barite, which makes the flow performance of drilling fluid deteriorate, not only destroys the stability of drilling fluid performance, but also increases the friction of circulating system, which causes equipment to wear out prematurely. Therefore, the drilling waste liquid must be separated and treated before it reenters the circulating system.

[0003] Patent No. CN115405246B discloses a drilling rock debris and waste liquid separation device, which belongs to the technical field of drilling rock debris and waste liquid processing, and comprises a solid-liquid separation tank and a waste liquid recovery cylinder. A top cover is installed on the top surface of the solid-liquid separation tank, and a feed inlet is provided on the top surface of the top cover. The waste liquid recovery cylinder is fixedly installed in the inner cavity of the solid-liquid separation tank. An annular coaming is fixedly connected to the lower part of the solid-liquid centrifugal separation filter cover. Two arc-shaped flip scrapers are symmetrically hinged to the lower part of the solid-liquid centrifugal separation filter cover and between the solid-liquid centrifugal separation filter cover and the annular coaming. Two electric push-pull rods are symmetrically hinged to the bottom surface of the solid-liquid centrifugal separation filter cover and perform arc-shaped flip motion.

[0004] The above-mentioned patent still has the following technical defects: when the filtration flow is large, the single-layer filter cover separates slowly, which cannot meet the demand. When the waste liquid is poured, it cannot ensure that the waste liquid flows uniformly to the surface of the separation cover. The waste liquid is discharged from one side to the separation cover, which makes the filtration pressure of the separation cover at that position larger, and the separation is not complete. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a drilling rock debris sampling separation device.

[0006] The technical scheme of the utility model provides a drilling rock debris sampling separation device, which comprises:

[0007] A separation outer box;

[0008] A rotating inner cylinder is rotatably installed on the inner side of the separation outer box. A power assembly for driving the rotating inner cylinder to rotate is installed on the separation outer box.

[0009] A plurality of first filter screens are arranged side by side on the inner side of the rotating inner cylinder, a plurality of slag discharge holes are formed in the rotating inner cylinder, and the plurality of slag discharge holes are respectively located at the bottom ends of the plurality of first filter screens; a partition cover is arranged between any two adjacent first filter screens, and the bottom end of each of the plurality of partition covers is vertically connected with a first liquid discharge pipe, and the bottom end of the first liquid discharge pipe is arranged at the bottom end of the inner cavity of the rotating inner cylinder; and a liquid guide pipe assembly is arranged in communication with the bottom end of the rotating inner cylinder.

[0010] A funnel is arranged at the top end of the rotating inner cylinder, a bottom plate is arranged at the inner bottom end of the funnel, a discharge pipe is arranged above each of the plurality of first filter screens, and the discharge pipe penetrates through the bottom plate.

[0011] Preferably, the separation outer box is provided with a sealing mechanism for plugging the plurality of slag discharge holes, the sealing mechanism comprises an electric telescopic rod, a lifting block, a rotating ring and a plurality of sealing rings, the plurality of sealing rings are respectively arranged on the outer sides of the plurality of slag discharge holes and cover the corresponding slag discharge holes, any two adjacent sealing rings are fixedly connected, the rotating ring is arranged on the outer periphery of the sealing ring, the lifting block has a U-shaped structure, the edge of the rotating ring is slidably arranged in the inner groove of the lifting block, and the electric telescopic rod is arranged on the separation outer box and connected with the lifting block.

[0012] Preferably, the inner bottom end of the separation outer box is provided with a second filter screen, the second filter screen has a funnel-shaped structure, and the second filter screen is located below the rotating inner cylinder, the bottom end of the second filter screen is provided with a protrusion, the protrusion has an inverted funnel-shaped structure, a through hole is formed in the center of the bottom end of the separation outer box, and a fourth liquid discharge pipe is arranged in communication with the side of the bottom end of the separation outer box.

[0013] Preferably, the power assembly comprises a motor, a gear and a gear ring, the motor is arranged on the separation outer box, the gear is connected with the output shaft of the motor, and the gear ring is arranged on the outer periphery of the rotating inner cylinder and is in meshing connection with the gear.

[0014] Preferably, the liquid guide pipe assembly comprises a second liquid discharge pipe and a third liquid discharge pipe, the second liquid discharge pipe is vertically arranged in communication with the bottom end of the rotating inner cylinder, the third liquid discharge pipe penetrates through the inner and outer sides of the separation outer box, the third liquid discharge pipe has a bent pipe structure, and the bottom end of the second liquid discharge pipe is arranged on the inner side of the third liquid discharge pipe.

[0015] Preferably, the first filter screen and the partition cover have a conical or circular table-shaped structure.

[0016] Compared with the prior art, the present application has the following beneficial technical effects: the plurality of first filter screens arranged side by side can increase the filtering area of the waste liquid and the filter screen, thereby improving the filtering effect of the waste liquid and the filtering efficiency of the waste liquid per unit time, the first filter screen has a conical structure, the filtering area of the first filter screen is larger than that of a planar filter screen, the first filter screen occupies a small space after being arranged side by side, the outer surface of the first filter screen forms an inclined surface, which can help the rock debris to slide down and avoid the accumulation of the rock debris. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 and Fig. 2 are structural schematic diagrams of the utility model.

[0018] Fig. 3 is a sectional structure diagram of the utility model.

[0019] Reference Signs: 1, separate outer box; 2, rotating inner cylinder; 201, slag hole; 3, hopper; 4, bottom plate; 5, first filter screen; 6, partition cover; 7, sealing ring; 8, rotating ring; 9, lifting block; 10, electric telescopic rod; 11, discharge pipe; 121, motor; 122, gear; 123, gear ring; 13, first liquid discharge pipe; 14, second liquid discharge pipe; 15, second filter screen; 16, protrusion; 17, third liquid discharge pipe; 18, fourth liquid discharge pipe. DETAILED DESCRIPTION

[0020] Example One

[0021] As Figs. 1-3 shown, the drilling rock sample separation device provided by the embodiment comprises a separate outer box 1, a rotating inner cylinder 2, a hopper 3 and a plurality of first filter screens 5.

[0022] The rotating inner cylinder 2 is rotatably installed on the inner side of the separate outer box 1, and the separate outer box 1 is provided with a power assembly for driving the rotating inner cylinder 2 to rotate, the power assembly comprising a motor 121, a gear 122 and a gear ring 123, wherein the motor 121 is installed on the separate outer box 1, the gear 122 is connected with the output shaft of the motor 121, and the gear ring 123 is arranged on the outer periphery of the rotating inner cylinder 2 and is in meshing connection with the gear 122.

[0023] The plurality of first filter screens 5 are arranged side by side on the inner side of the rotating inner cylinder 2, and a plurality of slag holes 201 are formed in the rotating inner cylinder 2, and the plurality of slag holes 201 are respectively located at the bottom ends of the plurality of first filter screens 5; the partition cover 6 is arranged between the adjacent two first filter screens 5, and the first filter screen 5 and the partition cover 6 are both in conical or circular table structure, so that the surface area of the filter screen is larger and the filtering effect is better, and the plurality of first filter screens 5 can reduce the occupied space as much as possible after being arranged vertically and side by side, and the bottom end of the plurality of partition covers 6 is vertically connected with the first liquid discharge pipe 13, and the bottom end of the first liquid discharge pipe 13 is arranged at the bottom end of the inner cavity of the rotating inner cylinder 2.

[0024] The bottom end of the rotating inner cylinder 2 is provided with a liquid guide pipe assembly, which includes a second liquid discharge pipe 14 and a third liquid discharge pipe 17. The second liquid discharge pipe 14 is vertically connected to the bottom end of the rotating inner cylinder 2, and the third liquid discharge pipe 17 penetrates the inner and outer sides of the separation outer box 1. The third liquid discharge pipe 17 is a bent pipe structure, and the bottom end of the second liquid discharge pipe 14 is located inside the third liquid discharge pipe 17. The drilling fluid is discharged through the second liquid discharge pipe 14 and then flows into the inside of the third liquid discharge pipe 17. A certain gap should be reserved between the outer wall of the second liquid discharge pipe 14 and the inner wall of the third liquid discharge pipe 17 to prevent a large friction force from being generated between the second liquid discharge pipe 14 and the third liquid discharge pipe 17.

[0025] The funnel 3 is arranged at the top end of the rotating inner cylinder 2, and the inside bottom end of the funnel 3 is provided with a bottom plate 4. A plurality of first filter screens 5 are arranged above the discharge pipes 11, and the discharge pipes 11 penetrate the bottom plate 4.

[0026] Specifically, when the waste liquid containing cuttings is separated and treated, the specific implementation process includes the following steps:

[0027] I. The waste liquid is poured into the inside of the funnel 3, and then flows into the above of the plurality of first filter screens 5 through the plurality of discharge pipes 11. The cuttings and the drilling fluid can be separated through the installed first filter screens 5. The cuttings are blocked inside the first filter screens 5 and are discharged into the inside bottom end of the separation outer box 1 through the slag discharge holes 201, and finally are discharged outside the box through the through holes. The separated drilling fluid flows into the surface of the lower separation cover 6 through the first filter screens 5, and then flows into the inside of the first liquid discharge pipe 13 at the bottom end of the separation cover 6, and finally is discharged through the liquid guide pipe assembly.

[0028] II. While the above filtering operation is being performed, the rotating inner cylinder 2 is driven to rotate by the installed power assembly, that is, the plurality of first filter screens 5 are rotated, so that the waste liquid flowing out through the discharge pipes 11 can uniformly flow onto the surface of the first filter screens 5, thereby improving the filtering effect of the waste liquid.

[0029] It should be noted that the installed power assembly also has another effect: the power assembly drives the rotating inner cylinder 2 to rotate at high speed, at which time the centrifugal force of the first filter screens 5 increases, so that the cuttings stuck on the outer surface of the first filter screens 5 can accelerate to fall off.

[0030] In summary, the technical scheme has the following technical effects: the plurality of first filter screens 5 arranged side by side can increase the filtering area of the waste liquid and the filter screens, thereby improving the filtering effect of the waste liquid. At the same time, the first filter screens 5 are arranged in a conical shape, which has a larger filtering area than a planar filter screen, occupies a small space after being arranged side by side, and the outer surface forms an inclined surface, which can help the cuttings to slide off and avoid the accumulation of cuttings.

[0031] Embodiment two

[0032] As Fig. 3 shown, the drilling rock sample separation device provided in the embodiment, compared with embodiment one, in order to realize the sealing of the plurality of slag holes 201, the sealing mechanism is further provided, the sealing mechanism comprises an electric telescopic rod 10, a lifting block 9, a rotating ring 8 and a plurality of sealing rings 7, wherein the plurality of sealing rings 7 are respectively arranged on the outer side of the plurality of slag holes 201 and cover the corresponding side of the slag hole 201, further, the sealing ring 7 is provided with a sealing ring, so as to improve the sealing between the sealing ring 7 and the rotating inner cylinder 2, the adjacent two sealing rings 7 are fixedly connected, the rotating ring 8 is arranged on the outer periphery of the sealing ring 7, the lifting block 9 is of U-shaped structure, the edge of the rotating ring 8 is slidably arranged in the inner side groove of the lifting block 9, and the electric telescopic rod 10 is installed on the separation outer box 1 and the output shaft thereof is connected with the lifting block 9; specifically, the electric telescopic rod 10 is started to work to drive the lifting block 9 to move, the lifting block 9 moves to drive the rotating ring 8 and the plurality of sealing rings 7 to move, so as to realize the exposure and sealing of the slag hole 201; when the filtered flow is large, the slag hole 201 is sealed to prevent the unfiltered waste liquid from flowing out through the slag hole 201, when the rock debris at the bottom end of the first filter screen 5 is accumulated to a certain amount, the slag hole 201 is exposed, at this time, the rock debris is discharged through the slag hole 201, and then the slag hole 201 is quickly sealed.

[0033] Embodiment three

[0034] As Fig. 3 shown, the drilling rock sample separation device provided in the embodiment, compared with embodiment one, in the embodiment, the inner side bottom end of the separation outer box 1 is provided with a second filter screen 15, the second filter screen 15 is of a funnel structure, and the second filter screen 15 is located below the rotating inner cylinder 2, the bottom end of the second filter screen 15 is provided with a protrusion 16, the protrusion 16 is of an inverted funnel structure, a through hole is formed in the bottom end center of the separation outer box 1, and the fourth liquid discharge pipe 18 is communicated with the side of the bottom end of the separation outer box 1; when the unfiltered waste liquid is discharged through the slag hole 201, the second filter screen 15 can be used for secondary filtering of the waste liquid, so that the purity of the drilling fluid and the rock debris separated by the equipment is higher.

[0035] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the knowledge range possessed by the person skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A borehole cuttings sampling and separating device, characterized in that, The utility model relates to a kind of separation outer box (1);Rotary inner cylinder (2) is rotatably mounted in the inside of separation outer box (1), and power assembly for driving rotary inner cylinder (2) rotation is installed on separation outer box (1);Multiple first filter screens (5) are side by side arranged in the inside of rotary inner cylinder (2), and multiple slag discharge holes (201) are opened in rotary inner cylinder (2), and multiple slag discharge holes (201) are respectively located at the bottom end of multiple first filter screens (5);Separation cover (6) is arranged between adjacent two first filter screens (5), and the bottom end of multiple separation covers (6) is vertically connected with first liquid discharge pipe (13), and the bottom end of first liquid discharge pipe (13) is arranged at the bottom end of the inner cavity of rotary inner cylinder (2);Guide pipe assembly is communicated at the bottom end of rotary inner cylinder (2);Funnel (3) is arranged at the top end of rotary inner cylinder (2), and bottom plate (4) is arranged at the inside bottom end of funnel (3), and the above of multiple first filter screens (5) is provided with discharge pipe (11), and discharge pipe (11) penetrates bottom plate (4). Sealing mechanism for blocking multiple slag discharge holes (201) is installed on separation outer box (1), and sealing mechanism includes electric telescopic rod (10), lifting block (9), swivel (8) and multiple sealing rings (7), wherein multiple sealing rings (7) are respectively arranged at the outside of multiple slag discharge holes (201) and cover corresponding side slag discharge hole (201), and adjacent two sealing rings (7) are fixedly connected, swivel (8) is arranged at the outer periphery of sealing ring (7), lifting block (9) is U-shaped structure, the edge of swivel (8) is slidably arranged in the inside groove of lifting block (9), and electric telescopic rod (10) is installed on separation outer box (1) and its output shaft is connected with lifting block (9). The inside bottom end of separation outer box (1) is provided with second filter screen (15), and second filter screen (15) is funnel-shaped structure, and second filter screen (15) is located below rotary inner cylinder (2), and the bottom end of second filter screen (15) is provided with protrusion (16), and protrusion (16) is inverted funnel-shaped structure, and through hole is opened in the bottom end center of separation outer box (1), and fourth liquid discharge pipe (18) is communicated in the side of the bottom end of separation outer box (1). Power assembly includes motor (121), gear (122) and gear ring (123), wherein motor (121) is installed on separation outer box (1), gear (122) is connected with the output shaft of motor (121), and gear ring (123) is arranged at the outer periphery of rotary inner cylinder (2) and is engagedly connected with gear (122). Guide pipe assembly includes second liquid discharge pipe (14) and third liquid discharge pipe (17), and second liquid discharge pipe (14) is vertically communicated at the bottom end of rotary inner cylinder (2), and third liquid discharge pipe (17) penetrates the inside and outside of separation outer box (1), and third liquid discharge pipe (17) is elbow pipe structure, and the bottom end of second liquid discharge pipe (14) is arranged at the inside of third liquid discharge pipe (17).

2. A drill cuttings sampling and separating device according to claim 1, wherein, First filter screen (5) and separation cover (6) are conical or circular truncated cone structure.

3. The drill cuttings sampling and separating apparatus of claim 1, wherein, ​ 4. The drill cuttings sampling and separating apparatus of claim 1, wherein, ​ 5. The drill cuttings sampling and separating apparatus of claim 1, wherein, ​ 6. The drill cuttings sampling and separating apparatus of claim 1, wherein, ​

Images