Automatic broken stone collecting device for drilling machine hole forming process

Abstract

The invention discloses an automatic broken stone collecting device used in the hole forming process of a drilling machine. The technical problem that broken stones cannot be directly recycled in the hole drilling construction process is solved. The device comprises a supporting frame body arranged in a mud pit, a broken stone filter screen is obliquely arranged on the supporting frame body, a broken stone conveyor is arranged below the broken stone filter screen, broken stone discharged by a mud pipe is blocked by the broken stone filter screen and rolls into the broken stone conveyor, and mud falls into the mud pit from meshes of the broken stone filter screen. According to the technical scheme, emissions in the drilling construction process are reduced, broken stones generated in the drilling construction process are recycled conveniently and efficiently in an energy-saving and environment-friendly mode, drilled rock fragments are separated from slurry and used for other parts of a project, such as a pipeline broken stone foundation, pipe side backfilling and roadbed filling, and the construction efficiency is improved. The method can not only reduce the discarding transportation cost, but also save the investment of materials of other parts, and create economic benefits.

Description

Technical Field

[0001] The invention relates to the technical field of gravel recovery in drilling construction, in particular to an automatic gravel collection device used in the drilling process of a drilling rig. Background Art

[0002] Bored piles are an important form of modern bridge foundation construction, and are widely used in highway, municipal elevated, railway and other bridge projects. Drilling construction is a common hole-making process, and the strata in the boreholes are generally pebbles, rounded stones, crushed stones, fully weathered rock strata, medium weathered rock strata and other hard rock strata. In conventional construction processes, rock fragments in the strata are discharged into the mud pool along with the mud in the hole, and then transported and abandoned, causing certain economic losses. If a device can be used to separate the drilled rock fragments from the mud and use them in other parts of the project, such as pipeline gravel foundation, pipe side backfill, roadbed filling, and access road construction, it can not only reduce the cost of external transportation, but also save the input of materials in other parts, creating economic benefits.

[0003] In recent years, energy conservation and environmental protection have gradually become the development trend of engineering construction, including how to recycle the emissions generated during the construction of bored piles. For example, the invention patent with an application publication date of 2021.12.31 and an application publication number of CN 113856319A discloses a method for comprehensive recovery and treatment of bored pile mud and gravel, which utilizes a bored pile mud and gravel comprehensive recovery and treatment system including a sand and gravel separator, a slurry storage tank, a filter press, a mixer, a reagent tank, a belt conveyor and a three-stage sedimentation tank. In this system, the sand and gravel separator is used to extract mud from the borehole and separate it to obtain fine sand, the slurry storage tank is used to store the mud separated by the sand and gravel separator, the filter press is used to further process the mud separated by the sand and gravel separator to recover clean water, and the reagent tank and the mixer are used to add reagents to the mud transported to the filter press to make the mud easier to filter by the filter press. The above technical solution adopts a complete set of mud sand and gravel processing equipment. Although it can reduce the waste discharge in bored pile projects, it is not directly compatible with the drilling construction process. It needs to configure a complete system at another site, requires multi-stage separation and multi-stage sedimentation, and also requires filter pressing and chemical mixing. In addition, it is impossible to directly recover the gravel or transport the gravel.

[0004] For example, the invention patent with an application publication date of 2023.03.07 and application publication number CN 115738479 A discloses a bored pile mud and sand recovery device, including a filter screen sand removal device, a cyclone sand removal device and a vibration sand removal device; the filter screen sand removal device includes a box body, which is provided with a mud inlet, a mud water outlet and a sand and gravel outlet; the interior of the box body is provided with a filter screen sand removal mechanism and a mud water baffle for guiding the mud water to the mud water outlet; the cyclone sand removal device includes at least one main cyclone sand removal device, and the feed port of the main cyclone sand removal device is connected to the mud input pipe connected to the mud inlet; the vibration sand removal device includes a mud water receiving pan, a vibrating screen and a spray pipe. The above technical solution realizes the separation of sand and gravel in the mud through the filter screen sand removal device and the cyclone sand removal device, and utilizes the vibration sand removal device to separate and clean the mud and water flowing out of the mud and water outlet on the box body and the bottom flow outlet of the main cyclone sand removal device to obtain fine sand. However, the filter screen sand removal device, the cyclone sand removal device, and the vibration sand removal device not only have high energy consumption, but also cannot be directly adapted to the drilling construction process, and the mud in the mud pool can only be extracted at another site for secondary treatment.

[0005] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an automatic gravel collection device for use in the drilling process of a drilling rig, which solves the technical problem that gravel cannot be directly recovered during the drilling construction process.

[0007] The technical solution of this application is: An automatic gravel collection device for a drilling process includes a support frame arranged in a mud pool. The support frame is directly arranged in the mud pool without occupying additional space or setting up other equipment, and can be directly used in the drilling process. A gravel filter is arranged obliquely on the support frame. During the drilling process, the mud discharged from the mud pipe carries the gravel and is directly sprayed onto the inclined surface of the gravel filter. A gravel conveyor is arranged below the gravel filter. The gravel discharged from the mud pipe is blocked by the gravel filter and rolls into the conveyor, and then is transmitted to the gravel collection pool, while the mud discharged from the mud pipe falls into the mud pool from the mesh of the gravel filter.

[0008] On the basis of the above technical scheme, as an optimal technical scheme for the automatic gravel collection device, the support frame is an I-beam support frame to ensure the structural strength and stability of the support, and the slurry outlet of the mud pipe of the drilling rig is arranged on the I-beam support frame to ensure the stability of the slurry outlet position and the accuracy of the slurry outlet direction. The slurry outlet is opposite to the gravel filter, and the slurry carrying gravel is sprayed onto the gravel filter with the help of the power of the mud pipe itself.

[0009] On the basis of the above technical solution, as an optimal technical solution for the automatic gravel collection device, the slurry outlet is horizontally arranged through a mud pipe support beam, and the height of the slurry outlet is below the median height of the gravel filter, so that the mud pipe can be dissipated.

[0010] On the basis of the above technical scheme, as an optimal technical scheme for the automatic gravel collection device, the angle between the extension direction of the slurry outlet and the gravel filter is an obtuse angle, and the gravel conveyor is arranged horizontally. The mud pipe spreads the slurry entrained with gravel along the inclined surface of the gravel filter, which can prevent splashing, maximize the utilization of the gravel filter, and facilitate the gravel to roll onto the gravel conveyor.

[0011] On the basis of the above technical solution, as a preferred technical solution of the automatic gravel collection device, the gravel conveyor is a belt conveyor, one end of the belt of the belt conveyor is located below the gravel filter screen, and the other end of the belt is located in the gravel collection pool.

[0012] On the basis of the above technical solution, as an optimal technical solution for the automatic gravel collection device, mud and water holes are provided on the belt of the belt conveyor to facilitate further discharge of mud and water attached to the gravel and prevent part of the mud and water from entering the gravel collection pool along the belt conveyor.

[0013] On the basis of the above technical solution, as a preferred technical solution of the automatic gravel collection device, the gravel conveyor is a screw conveyor, the feed port of the belt conveyor is located below the gravel filter screen, and the discharge port is located in the gravel collection pool.

[0014] On the basis of the above technical solution, as a preferred technical solution of the automatic gravel collection device, a funnel-shaped feed bin is provided between the feed port of the screw conveyor and the discharge end of the gravel filter screen, and a muddy water hole is provided on the funnel-shaped feed bin to facilitate further discharge of the muddy water attached to the gravel, and prevent part of the muddy water from entering the gravel collection pool along with the screw conveyor. In addition, the spiral bin shell of the screw conveyor can also be set as a hollow structure, so that part of the muddy water carried by the gravel can be discharged at the same time when the screw conveyor is conveying the gravel.

[0015] On the basis of the above technical solution, as a preferred technical solution of the automatic gravel collection device, the gravel filter is a filter mesh structure formed by welding smooth round steel bars, and at least four filter mesh welding positions for fixing the gravel filter are arranged on the top of the support frame.

[0016] On the basis of the above technical solution, as a preferred technical solution for the automatic gravel collection device, the support frame is a three-dimensional steel structure welded from I-beams, the four corners of the three-dimensional steel structure are welded to the steel sheet piles around the mud pool and / or the bottom of the mud pool is provided with a pad for supporting the support frame.

[0017] Compared with the prior art, the technical solution provided by the present invention not only reduces emissions during the drilling construction process, but also conveniently, efficiently, energy-saving and environmentally friendly recycles the gravel generated during the drilling construction process, separates the drilled rock fragments from the mud, and uses them in other parts of the project, such as pipeline gravel foundation, pipe side backfill, roadbed filling, and access road construction. It not only reduces the cost of external transportation, but also saves the investment in materials in other parts, creating economic benefits.

[0018] The technical solution provided by the present invention can not only be directly placed in the mud pool during the drilling construction process without providing another site for secondary or multi-stage treatment, but also can be directly adapted to the mud pipe during the drilling construction process without the need to use other power function equipment such as cyclone, filtration or filter press. It can not only conveniently and efficiently recycle the gravel generated during the drilling construction process, but also only requires one energy-consuming conveying equipment, which is green and energy-saving and conforms to the development trend of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A top view of Figure 3 for Figure 1 The elevation view of the supporting frame in FIG. Figure 4 for Figure 3 A top view of Figure 5 for Figure 4 Partial mounting frame for medium belt conveyor; Figure 6 A three-dimensional diagram of the support frame.

[0021] Description of Figure Numbers: Support frame 1, mud pipe support beam 101, filter screen welding position 102, frame welding position 103; Gravel filter 2, gravel conveyor 3; Mud pool 100; Drilling rig 200, mud pipe 201; Gravel collection tank 300. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0024] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0026] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0027] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0029] An automatic gravel collection device for use in a drilling process, such as Figures 1 to 6 As shown, it includes a support frame 1 arranged in a mud pool 100. The support frame 1 is directly arranged in the mud pool 100 without occupying additional space or setting up other equipment, and can be directly used in the drilling process. A gravel filter 2 is arranged obliquely on the support frame 1. During the drilling process, the mud discharged from the mud pipe 201 is directly sprayed onto the inclined surface of the gravel filter 2 with gravel. A gravel conveyor 3 is arranged below the gravel filter 2. The gravel discharged from the mud pipe 201 is blocked by the gravel filter 2 and rolls into the conveyor 3, and then is transmitted to the gravel collection pool 300. The mud discharged from the mud pipe 201 falls from the mesh of the gravel filter 2 into the mud pool 100.

[0030] This technical solution can not only be directly placed in the mud pool during the drilling construction process without providing another site for secondary or multi-stage treatment, but also can be directly adapted to the mud pipe during the drilling construction process without the need to use other power function equipment such as cyclone, filtration or filter press. It can not only conveniently and efficiently recycle the gravel generated during the drilling construction process, but also only requires one energy-consuming conveying equipment, which is green and energy-saving and in line with the development trend of energy conservation and environmental protection.

[0031] On the basis of the above embodiments, as a preferred embodiment of the automatic gravel collection device, the support frame 1 is an I-beam support frame to ensure the structural strength and stability of the support, and the slurry outlet of the mud pipe 201 of the drilling rig 200 is arranged on the I-beam support frame to ensure the stability of the slurry outlet position and the accuracy of the slurry outlet direction. The slurry outlet is opposite to the gravel filter 2, and the slurry carrying gravel is sprayed onto the gravel filter 2 with the help of the power of the mud pipe 201 itself.

[0032] On the basis of the above embodiment, as a preferred embodiment of the automatic gravel collection device, the slurry outlet is horizontally arranged through a mud pipe support beam 101, and the height of the slurry outlet is below the median height of the gravel filter 2, so that the mud pipe 201 can be dissipated.

[0033] On the basis of the above embodiments, as a preferred embodiment of the automatic gravel collection device, the angle between the extension direction of the slurry outlet and the gravel filter 2 is an obtuse angle, and the gravel conveyor 3 is arranged horizontally. The mud pipe 201 spreads the gravel slurry along the inclined surface of the gravel filter 2, which can prevent splashing, maximize the utilization of the gravel filter 2, and facilitate the gravel to roll to the gravel conveyor 3.

[0034] On the basis of the above embodiment, as a preferred embodiment of the automatic gravel collection device, the gravel conveyor 3 is a belt conveyor, one end of the belt of the belt conveyor is located below the gravel filter 2, and the other end of the belt is located in the gravel collection pool 300.

[0035] On the basis of the above embodiment, as a preferred embodiment of the automatic gravel collection device, muddy water holes are provided on the belt of the belt conveyor to facilitate further discharge of muddy water attached to the gravel and prevent part of the muddy water from entering the gravel collection pool 300 along with the belt conveyor.

[0036] On the basis of the above embodiments, as a preferred embodiment of the automatic gravel collection device, the gravel conveyor 3 is a screw conveyor, the feed port of the belt conveyor is located below the gravel filter 2, and the discharge port is located in the gravel collection pool 300.

[0037] On the basis of the above embodiment, as a preferred embodiment of the automatic gravel collection device, a funnel-shaped feed bin is provided between the feed port of the screw conveyor and the discharge end of the gravel filter 2, and a muddy water hole is provided on the funnel-shaped feed bin to facilitate further discharge of the muddy water attached to the gravel, and prevent part of the muddy water from entering the gravel collection pool 300 along with the screw conveyor. In addition, the spiral bin shell of the screw conveyor can also be set as a hollow structure, so that part of the muddy water carried by the gravel can be discharged at the same time when the screw conveyor is conveying the gravel.

[0038] On the basis of the above embodiments, as a preferred embodiment of the automatic gravel collection device, the gravel filter 2 is a filter mesh structure formed by welding smooth round steel bars, and at least four filter mesh welding positions 102 for fixing the gravel filter 2 are arranged on the top of the support frame 1.

[0039] On the basis of the above embodiments, as a preferred embodiment of the automatic gravel collection device, the support frame 1 is a three-dimensional steel structure welded by I-beams, and the four corners of the three-dimensional steel structure are welded to the steel sheet piles around the mud pool 100 and / or the bottom of the mud pool 100 is provided with a pad for supporting the support frame 1.

[0040] The invention can automatically separate mud from rock fragments and collect the rock fragments. Preferably, the device adopts a 25a I-beam support frame, a belt conveyor, and a Φ6 smooth round steel bar welded gravel filter.

[0041] Support frame: The drilling rig pumping mud has a large impact force, so it is very important to ensure the stability of the frame. Since the device is relatively light, the frame is welded with 25a I-steel, and the four corners of the frame are welded to the steel sheet piles around the mud pool through the frame welding position 103. If the steel sheet piles are not installed, wooden boards can be placed under the mud pool for support; the frame is reinforced with cross bars at the support position of the mud pipe to ensure the stability of the mud pipe, and the transmission belt of the belt conveyor is fixed at the lower end of the filter screen in the middle of the frame, and the legs are fixed with cross beams.

[0042] Gravel filter: The gravel filter is 1m long and 0.7m wide. To ensure the smooth rolling of rock fragments, the gravel filter is welded vertically and horizontally with Φ6 smooth round steel bars, and the net distance between the steel bars is 3cm. The gravel filter is tilted 60 degrees for reinforcement to facilitate the sliding of rock fragments and the filtering of mud. The stones stuck in the filter are cleaned regularly.

[0043] Belt conveyor: The belt conveyor is fixed in the middle of the support frame, below the separation filter side, and transports the separated rock fragments from the mud pool to the gravel and pebble collection area. The belt at the collection area is higher than the side of the mud pool so that the mud attached to the gravel can flow into the mud pool.

[0044] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0045] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic gravel collection device for drilling rig hole forming process, characterized by: It comprises a support frame (1) arranged in a mud pool (100), a gravel filter screen (2) being arranged obliquely on the support frame (1), and a gravel conveyor (3) being arranged below the gravel filter screen (2).

2. The automatic gravel collection device for drilling process according to claim 1 is characterized in that: The support frame (1) is an I-beam support frame, and a slurry outlet of a slurry pipe (201) of the drilling rig (200) is arranged on the I-beam support frame, and the slurry outlet is opposite to the gravel filter (2).

3. The automatic gravel collection device for drilling process according to claim 2 is characterized in that: The slurry outlet is arranged horizontally through a slurry pipe supporting crossbeam (101), and the height of the slurry outlet is located below the median height of the gravel filter (2).

4. The automatic gravel collection device for drilling process according to claim 3 is characterized in that: The angle between the extension direction of the slurry outlet and the crushed stone filter (2) is an obtuse angle, and the crushed stone conveyor (3) is arranged horizontally.

5. The automatic gravel collection device for drilling process according to any one of claims 1 to 4, characterized in that: The gravel conveyor (3) is a belt conveyor, one end of the belt of the belt conveyor is located below the gravel filter (2), and the other end of the belt is located in the gravel collection pool (300).

6. The automatic gravel collection device for drilling process according to claim 5 is characterized in that: The belt of the belt conveyor is provided with mud and water holes.

7. The automatic gravel collection device for use in a drilling process according to any one of claims 1 to 4, characterized in that: The gravel conveyor (3) is a screw conveyor, the feed inlet of the belt conveyor is located below the gravel filter (2), and the discharge outlet is located in the gravel collection pool (300).

8. The automatic gravel collection device for drilling process according to claim 7 is characterized in that: A funnel-shaped feed bin is provided between the feed inlet of the screw conveyor and the discharge end of the gravel filter (2), and mud and water holes are provided on the funnel-shaped feed bin.

9. The automatic gravel collection device for use in a drilling process according to any one of claims 1 to 4, 6 and 8, characterized in that: The gravel filter (2) is a filter-like structure formed by welding round steel bars, and the top of the support frame (1) is provided with at least four filter welding positions (102) for fixing the gravel filter (2).

10. The automatic gravel collection device for drilling process according to claim 9, characterized in that: The support frame (1) is a three-dimensional steel structure formed by welding I-beams, the four corners of the three-dimensional steel structure being welded to steel sheet piles around the mud pool (100) and / or a pad for supporting the support frame (1) is provided at the bottom of the mud pool (100).

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