Slurry filtering device for geological core drilling

Abstract

The utility model relates to the technical field of slurry filtering equipment, and discloses a slurry filtering device for geological core drilling, which comprises a support, a cylinder is fixedly mounted on the support, and the cylinder is of a through structure; the centrifugal cylinder is mounted in the cylinder body through a bearing, and the top of the centrifugal cylinder extends out of the cylinder body; the rotary driving mechanism comprises a motor which is fixedly mounted on the surface of the barrel through a supporting plate; the centrifugal barrel can be driven to rotate through the motor; the annular blocking plate is fixed on the inner side wall of the cylinder body; according to the mud filtering device for geological core drilling, an efficient centrifugal filtering mechanism is adopted, the filtering efficiency of solid particles in mud can be remarkably improved, through mud filtering, abrasion to drilling equipment is reduced, the efficiency of drilling operation is improved, the function of automatically cleaning the solid particles is achieved, the frequency of manual intervention is reduced, and the labor intensity of workers is relieved. And the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mud filtering equipment technical field, concretely is a kind of mud filtering device for geological core drilling. BACKGROUND

[0002] Geological core drilling is a commonly used geological exploration method, and core samples are extracted from the ground by drilling equipment to obtain geological structure and lithology information. In the drilling process, mud acts as a circulating medium, plays an important role in cooling the drill bit, lubricating the drilling tool, carrying the cuttings and maintaining the stability of the well wall.

[0003] However, in the process of geological core drilling, mud often contains a large amount of cuttings, sand particles and other solid particles, which can cause wear and tear to the drilling equipment, reduce drilling efficiency, and even cause equipment failure, so a mud filtering device is needed. However, the existing mud filtering device has low filtering efficiency and needs to be cleaned frequently by manual filtering of solid particles, which increases the labor intensity of workers and reduces the use effect of the device, so we propose a mud filtering device for geological core drilling to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a mud filtering device for geological core drilling, which solves the problems of low filtering efficiency of the mud filtering device and the need for frequent manual cleaning of filtered solid particles, which increases the labor intensity of workers.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a mud filtering device for geological core drilling, comprising a support, a cylinder fixedly installed on the support, the cylinder being designed in a through structure;

[0006] A centrifugal cylinder is installed in the cylinder through a bearing, and the top of the centrifugal cylinder extends to the outside of the cylinder.

[0007] A rotary drive mechanism comprises:

[0008] A motor is fixedly installed on the surface of the cylinder through a support plate, and the motor can drive the centrifugal cylinder to rotate.

[0009] An annular blanking plate is fixed to the inner wall of the cylinder, and the centrifugal cylinder is rotatably connected to the inner wall of the annular blanking plate through a sealing bearing.

[0010] A slurry discharge pipe is fixedly connected to the surface of the cylinder, and the bottom surface of the slurry discharge pipe is flush with the upper surface of the annular blanking plate.

[0011] A slurry inlet pipe is arranged above the cylinder.

[0012] A dirt removal mechanism comprises:

[0013] A blocking disc is arranged at the bottom of the centrifugal cylinder and used for blocking the bottom of the centrifugal cylinder.

[0014] A rotating shaft rod is rotatably connected to the bottom of the blocking disc through a sealing bearing.

[0015] Two groups of electric push rods are arranged outside the cylinder body and used for driving the rotating shaft rod to move up and down.

[0016] Preferably, the outer surface of the cylinder body is fixedly connected with the inlet pipe through a connecting block.

[0017] Preferably, the output end of the motor is fixedly provided with a first gear, and the top of the centrifugal cylinder is fixedly provided with a second gear which is in meshing connection with the first gear.

[0018] Preferably, the end of the rotating shaft rod away from the blocking disc is fixedly provided with a U-shaped rod, the surface of the cylinder body is provided with a rectangular hole for the movement of the U-shaped rod, the outer surface of the cylinder body is fixedly provided with a sealing cover near the rectangular hole, the top of the two groups of sealing covers is fixedly provided with the two groups of electric push rods, the two ends of the U-shaped rod are fixedly connected with the output ends of the two groups of electric push rods, and the top of the sealing cover is provided with a circular hole for the extension and retraction of the output end of the electric push rod.

[0019] Preferably, the top of the centrifugal cylinder is fixedly provided with a splash-proof sheet, and one end of the inlet pipe is located at the center hole of the splash-proof sheet.

[0020] Preferably, the surface of the cylinder body is provided with a cleaning port near the centrifugal cylinder, and a blocking fan door is arranged at the cleaning port and fixedly connected with the cylinder body through bolts, and the inner side wall of the blocking fan door is fixedly provided with a sealing gasket.

[0021] Beneficial effects

[0022] The mud filtering device for geological core drilling has the following beneficial effects compared with the prior art:

[0023] The mud filtering device for geological core drilling adopts the high-efficiency centrifugal filtering mechanism, can significantly improve the filtering efficiency of solid particles in the mud, reduces the abrasion of the drilling equipment through the filtering of the mud, improves the efficiency of the drilling operation, has the function of automatically cleaning the solid particles, reduces the frequency of manual intervention, and reduces the labor intensity of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a whole structure schematic view of the utility model;

[0025] Fig. 2 It is a whole structure sectional view of the utility model.

[0026] Fig. 3 The overall structure is shown in the rear view.

[0027] In the figure: 101, support; 102, cylinder; 103, centrifugal cylinder; 104, annular blocking plate; 105, pulp inlet pipe; 106, splash-proof sheet; 107, pulp discharge pipe; 108, blocking fan door; 2, rotary drive mechanism; 201, motor; 202, first gear; 203, second gear; 3, sewage discharge mechanism; 301, blocking disc; 302, rotating shaft rod; 303, U-shaped rod; 304, sealing cover; 305, electric push rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] As Figs. 1-3 shown:

[0030] A mud filtering device for geological core drilling, comprising a support 101, a cylinder 102 is fixedly installed on the support 101, and the cylinder 102 is designed in a through structure;

[0031] A centrifugal cylinder 103 is installed in the cylinder 102 through a bearing, and the top of the centrifugal cylinder 103 extends to the outside of the cylinder 102;

[0032] A rotary drive mechanism 2 comprises:

[0033] A motor 201 is fixedly installed on the surface of the cylinder 102 through a support plate, the centrifugal cylinder 103 can be driven to rotate through the motor 201, the output end of the motor 201 is fixedly installed with a first gear 202, and the top periphery of the centrifugal cylinder 103 is fixedly installed with a second gear 203 which is meshed and connected with the first gear 202;

[0034] An annular blocking plate 104 is fixed to the inner wall of the cylinder 102, and the centrifugal cylinder 103 is rotationally connected to the inner wall of the annular blocking plate 104 through a sealing bearing;

[0035] A pulp discharge pipe 107 is fixedly connected to the surface of the cylinder 102, and the bottom surface of the pulp discharge pipe 107 is flush with the upper surface of the annular blocking plate 104;

[0036] A pulp inlet pipe 105 is arranged above the cylinder 102, and the outer surface of the cylinder 102 is fixedly connected with the pulp inlet pipe 105 through a connecting block;

[0037] The decontamination mechanism 3 comprises:

[0038] The blocking disc 301 is arranged at the bottom of the centrifugal cylinder 103 and is used for blocking the bottom of the centrifugal cylinder 103. The top of the blocking disc 301 is designed as a conical structure. The bottom of the centrifugal cylinder 103 is fixed with a rubber ring.

[0039] The rotating shaft rod 302 is rotatably connected to the bottom of the blocking disc 301 through a sealing bearing.

[0040] The electric push rod 305 is arranged in two groups and is located outside the cylinder body 102 and drives the rotating shaft rod 302 to move up and down. The end of the rotating shaft rod 302 away from the blocking disc 301 is fixed with a U-shaped rod 303. Rectangular holes for the movement of the U-shaped rod 303 are arranged on both sides of the surface of the cylinder body 102. The sealing cover 304 is sealingly fixed to the outer surface of the cylinder body 102 near the position of the rectangular hole. The two groups of electric push rods 305 are respectively fixed to the top of the two groups of sealing covers 304. The two ends of the U-shaped rod 303 are fixedly connected with the output ends of the two groups of electric push rods 305. The top of the sealing cover 304 is provided with a circular hole for the extension and retraction of the output end of the electric push rod 305.

[0041] In the embodiment, when the mud filtering device for geological core drilling is used, the slurry inlet pipe 105 can draw the mud to be filtered into the centrifugal cylinder 103 through the liquid pump one (not shown in the figure) and deliver it into the centrifugal cylinder 103. At the same time, the motor 201 is started to drive the first gear 202 to rotate. The first gear 202 is meshingly connected with the second gear 203, thereby driving the second gear 203 to rotate. The rotation of the second gear 203 can drive the centrifugal cylinder 103 to rotate. In the process of rotation of the centrifugal cylinder 103, the mud liquid in the inside is thrown out through the filter hole of the centrifugal cylinder 103 under the action of centrifugal force. The mud liquid is then located in the space formed by the cylinder body 102 and the annular blocking plate 104 and is discharged back to the drilling area through the slurry discharge pipe 107. In this process, the slurry liquid can be drawn out by installing the slurry pump two (not shown in the figure) at one end of the slurry discharge pipe 107, so as to realize the recycling of the slurry liquid.

[0042] When the solid particles such as rock debris and sand particles accumulated in the centrifugal cylinder 103 are too much and need to be cleaned, the electric push rod 305 can be started to realize the downward movement of the U-shaped rod 303, thereby causing the rotating shaft rod 302 to move downward. The downward movement of the rotating shaft rod 302 drives the blocking disc 301 to move downward, thereby removing the blocking of the bottom of the centrifugal cylinder 103. In this way, the solid particles such as rock debris and sand particles in the centrifugal cylinder 103 can be discharged from the bottom of the centrifugal cylinder 103. Since the top of the blocking disc 301 is designed as a conical structure, this helps to prevent the solid particles such as rock debris and sand particles from gathering on it, thereby ensuring that they can be more effectively discharged and discharged through the bottom of the cylinder body 102.

[0043] The rotation connection between the rotation shaft rod 302 and the blocking disc 301 is through a sealing bearing, and when the electric push rod 305 pulls and lifts the U-shaped rod 303, the rotation shaft rod 302 and the blocking disc 301 are also driven to move upwards, so that the blocking disc 301 contacts the bottom of the centrifugal cylinder 103 and generates extrusion pressure; when the centrifugal cylinder 103 rotates, the blocking disc 301 rotates on the rotation shaft rod 302, and a rubber ring is fixed at the bottom of the centrifugal cylinder 103 to increase the sealing performance between the centrifugal cylinder 103 and the blocking disc 301.

[0044] The centrifugal filtering mechanism adopted in the scheme can significantly improve the filtering efficiency of solid particles in the mud, reduce the wear of the drilling equipment through filtering of the mud, improve the efficiency of the drilling operation, and reduce the frequency of manual intervention and the labor intensity of the workers through the automatic cleaning of the solid particles.

[0045] It should be noted that the power equipment involved in the product is powered by an external power source, and the scheme further provides an electric control box, which is arranged on the equipment and can be used to start the operation of each electrical equipment, and the power connection mode of each electrical equipment is a mature existing technology known to those skilled in the art, which will not be described in detail here.

[0046] Meanwhile, the contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

[0047] Further;

[0048] In an optional embodiment, the top of the centrifugal cylinder 103 is fixedly provided with a splash-proof sheet 106, and one end of the mud inlet pipe 105 is located at the center hole of the splash-proof sheet 106.

[0049] In the embodiment, the top of the centrifugal cylinder 103 is provided with a splash-proof sheet 106, which blocks the filtered mud liquid under the action of centrifugation to reduce liquid splashing, and one end of the mud inlet pipe 105 is matched with the center hole of the splash-proof sheet 106, but the mud inlet pipe 105 and the splash-proof sheet 106 are kept in a non-contact state to avoid interfering with the normal work of the centrifugal cylinder 103.

[0050] Further;

[0051] In an optional embodiment, a cleaning port is arranged on the surface of the cylinder body 102 close to the centrifugal cylinder 103, and a blocking flashboard 108 is arranged at the cleaning port, the blocking flashboard 108 is fixedly connected to the cylinder body 102 through bolts, and a sealing gasket is fixedly arranged on the inner side wall of the blocking flashboard 108.

[0052] In the embodiment, the outer part of the barrel 102 is provided with a blocking fan door 108, which is connected with the barrel 102 through bolts, and can be easily removed after the bolts are removed, so that the centrifugal barrel 103 and other components can be cleaned and maintained when not in use, thereby improving the overall use effect of the device.

[0053] The working principle and use process of the mud filtering device for geological core drilling are as follows: when the mud filtering device for geological core drilling is used, the slurry inlet pipe 105 can draw the mud to be filtered into the centrifugal barrel 103 through the liquid pump one (not shown in the figure) and deliver the mud to the centrifugal barrel 103 through the slurry inlet pipe 105, and at the same time, the motor 201 is started to drive the first gear 202 to rotate, the first gear 202 is meshed and connected with the second gear 203, and the second gear 203 is further driven to rotate, the rotation of the second gear 203 can drive the centrifugal barrel 103 to rotate, and in the rotation process of the centrifugal barrel 103, the mud liquid in the centrifugal barrel 103 is thrown out through the filter holes of the centrifugal barrel 103 under the action of centrifugal force, and then the mud liquid is located in the space formed by the barrel 102 and the annular blocking plate 104, and is discharged back to the drilling area through the slurry discharge pipe 107, in this process, the slurry pump two (not shown in the figure) can be installed at one end of the slurry discharge pipe 107 to draw out the mud liquid, so as to realize the recycling of the mud liquid; when the solid particles such as rock debris and sand particles accumulated in the centrifugal barrel 103 are too much and need to be cleaned, the electric push rod 305 can be started to realize, the starting of the electric push rod 305 drives the U-shaped rod 303 to move downward, and then the shaft rod 302 moves downward, and the downward movement of the shaft rod 302 drives the blocking disc 301 to move downward, so as to remove the blocking of the bottom of the centrifugal barrel 103, so that the solid particles such as rock debris and sand particles in the centrifugal barrel 103 can be discharged from the bottom of the centrifugal barrel 103, and since the top of the blocking disc 301 is designed as a conical structure, this helps to prevent the solid particles such as rock debris and sand particles from gathering on the top, so as to ensure that they can be effectively discharged and discharged through the bottom of the barrel 102.

[0054] Finally, it should be pointed out that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A mud filtration device for geological core drilling, comprising a support (101), characterized in that: Include: Support (101), the fixed installation of the barrel (102) on the support (101), the barrel (102) is through the structure design; Centrifugal cylinder (103), mounted in the barrel (102) through the bearing, its top extends to the outside of the barrel (102); Rotary drive mechanism (2), comprising: Motor (201), fixedly installed on the surface of the barrel (102) through the support plate, the centrifugal cylinder (103) can be driven to rotate by the motor (201); Annular blanking plate (104), fixed in the inner wall of the barrel (102), the centrifugal cylinder (103) is rotatably connected with the inner wall of the annular blanking plate (104) through the sealing bearing; Slurry discharge pipe (107), fixedly connected on the surface of the barrel (102), and the bottom surface of the slurry discharge pipe (107) is flush with the upper surface of the annular blanking plate (104); Slurry inlet pipe (105), arranged above the barrel (102); Unloading mechanism (3), comprising: Blocking disc (301), arranged at the bottom of the centrifugal cylinder (103), used for blocking the bottom of the centrifugal cylinder (103); Shaft rod (302), rotatably connected at the bottom of the blocking disc (301) through the sealing bearing; Electric push rod (305), provided with two groups, located outside the barrel (102), and driving the shaft rod (302) to move up and down.

2. The mud filter device for geological core drilling according to claim 1, characterized in that: The outer surface of the barrel (102) is fixedly connected with the slurry inlet pipe (105) through the connecting block.

3. The mud filter device for geological core drilling according to claim 1, characterized in that: The output end of the motor (201) is fixedly provided with a first gear (202), and the top peripheral surface of the centrifugal cylinder (103) is fixedly provided with a second gear (203) meshed with the first gear (202).

4. The mud filter apparatus for geological core drilling according to claim 1, characterized in that: The end of the shaft rod (302) away from the blocking disc (301) is fixedly provided with a U-shaped rod (303), the surface of the barrel (102) is provided with a rectangular hole for the movement of the U-shaped rod (303), the outer surface of the barrel (102) is fixedly provided with a sealing cover (304) close to the rectangular hole, two groups of electric push rods (305) are fixedly arranged at the top of two groups of sealing covers (304), the two ends of the U-shaped rod (303) are fixedly connected with the output ends of the two groups of electric push rods (305), and the top of the sealing cover (304) is provided with a circular hole for the extension of the output end of the electric push rod (305).

5. The mud filter device for geological core drilling according to claim 1, characterized in that: The top of the centrifugal cylinder (103) is fixedly provided with a splash plate (106), and one end of the slurry inlet pipe (105) is located at the center hole of the splash plate (106).

6. The mud filter apparatus for geological core drilling according to claim 1, characterized in that: A cleaning port is arranged on the surface of the barrel (102) close to the centrifugal cylinder (103), and a blocking flashboard (108) is arranged at the cleaning port, the blocking flashboard (108) is fixedly connected with the barrel (102) through bolts, and a sealing gasket is fixedly arranged on the inner wall of the blocking flashboard (108).

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