Multi-directional switching device for mine filling slurry conveying pipeline

Abstract

The present invention relates to the technical field of mine filling auxiliary devices, and discloses a multi-directional switching device for conveying pipelines of mine filling slurry, comprising a mounting bracket, a pipeline switching structure, a main pipeline and a plurality of branch pipelines, wherein the pipeline switching structure is arranged on the mounting bracket, and the pipeline switching structure is used to connect the main pipeline with a plurality of branch pipelines one by one; the pipeline switching structure comprises a mounting plate 1, a mounting plate 2, a rotary tube and a driving component; the bottom ends of the mounting plate 1 and the mounting plate 2 are both fixedly mounted on the mounting bracket, one end of the rotary tube has a rotating connecting part, and the rotating connecting part is rotatably mounted on the mounting plate 1, and a plurality of branch pipelines are fixedly mounted on the mounting plate 2 in a circumferential array, and the other end of the rotary tube is movably connected with the branch pipeline through a movable connecting part. The present invention flows into the branch pipeline through the rotary tube, and there are only two blunt-angle bends throughout the whole process, which greatly reduces the kinetic energy loss in the flow of filling slurry.

Description

Technical Field

[0001] The invention relates to the technical field of mine filling auxiliary devices, in particular to a multi-directional switching device for a mine filling slurry conveying pipeline. Background Art

[0002] When mining underground, filling slurry is needed to fill the mining area. The filling slurry is often prepared on the surface and transported to the destination through pipelines. At present, the transportation pipeline of the filling slurry is often composed of a feed pipe and multiple discharge pipes. The feed pipe is the main transportation pipeline from the surface to the underground, and the discharge pipe is the pipeline that enters the underground and is transported to each mining area.

[0003] For example, a Chinese utility model patent with authorization announcement number CN220488366U discloses a multi-directional switching device for a mine filling slurry conveying pipeline, including a feed pipe, on which a first connecting pipe is provided, and the right end of the feed pipe is connected to the left side of the first connecting pipe; the first connecting pipe is provided with a plurality of second connecting pipes, and the left end of each second connecting pipe is connected to the right side of the first connecting pipe; each second connecting pipe is provided with a third connecting pipe, and the right end of the second connecting pipe is connected to the left bottom of the corresponding third connecting pipe; each third connecting pipe is provided with a discharge pipe, and the right top of the third connecting pipe is connected to the left end of the corresponding discharge pipe; each third connecting pipe is also provided with a control mechanism for quickly adjusting the opening and closing of the connection between pipelines; through this device, the switching operation of the filling slurry conveying pipeline is facilitated, which is convenient for operators to quickly adjust the opening and closing of the connection between pipelines, saving time and effort and improving work efficiency.

[0004] Although the device is directly connected to multiple branch pipelines through a main pipeline and then independently closes or connects the corresponding branch pipelines through a control mechanism to switch the main pipeline to different branch pipelines, since there is a filling body in the pipeline, studies have shown that the local resistance loss of the filling slurry bend gradually decreases with the increase of the pipeline diameter and the curvature radius of the bend. In this device, there are more bends in the conveying pipeline and the control mechanism and the curvature radius of the bend is small, resulting in a large local resistance loss of the filling slurry bend, which ultimately makes it easy for the filling body to condense and clog in the upstream section of the control mechanism and inside the control mechanism. Summary of the invention

[0005] The present invention aims to solve the technical problem that too many curved parts in the pipeline and the right angle of the curved parts lead to easy blockage of the filling slurry. To this end, the present invention provides a multi-directional switching device for the mine filling slurry conveying pipeline.

[0006] The technical solution of the present invention:

[0007] A multi-directional switching device for conveying pipelines of filling slurry in mines, comprising a mounting bracket, a pipeline switching structure, a main pipeline and a plurality of branch pipelines, wherein the main pipeline is arranged on one side of the mounting bracket, and the plurality of branch pipelines are arranged on the other side of the mounting bracket, and the pipeline switching structure is arranged on the mounting bracket, and the pipeline switching structure is used to connect the main pipeline with the plurality of branch pipelines one by one;

[0008] The pipeline switching structure includes a mounting plate 1, a mounting plate 2, a rotary tube and a driving component; the bottom ends of the mounting plate 1 and the mounting plate 2 are fixedly mounted on the mounting bracket, one end of the rotary tube has a rotating connecting portion, the rotating connecting portion is rotatably mounted on the mounting plate 1, and a plurality of branch pipes are fixedly mounted on the mounting plate 2 in a circumferential array; the driving component is used to drive the bottom end of the rotary tube to rotate, and the other end of the rotary tube is movably connected to the branch pipe via a movable connecting portion.

[0009] Wherein, a slide groove is arranged on the rotating connecting part, a slide plate is slidably installed in the slide groove, a flow hole is arranged on the slide plate, and the slide plate is driven to slide by a linear driving member;

[0010] When the axis of the flow hole on the slide plate coincides with the axis of the rotating connecting part, the projections of the flow hole and the internal channel of the rotating connecting part on the vertical plane coincide with each other;

[0011] When the linear driving member drives the slide plate to slide to the bottom, the slide plate can completely close the internal passage of the rotating connecting portion.

[0012] Wherein, the linear drive component is a telescopic cylinder whose bottom is fixedly connected to the mounting bracket through a mounting plate.

[0013] Wherein, the main pipeline is fixedly mounted on the mounting bracket;

[0014] The bottom end of the rotary tube is rotatably mounted on the first mounting plate via a bearing;

[0015] The first mounting plate is provided with a through slot for the sliding slot portion provided on the rotating connecting part to pass through, and the through slot is provided with a fixing sleeve for fixing the sliding slot portion provided on the rotating connecting part.

[0016] Wherein, the rotating connecting part is a sleeve with one end sleeved on the end of the main pipeline and the other end sleeved on the bottom end of the rotating tube.

[0017] Wherein, the driving component includes a servo motor fixedly mounted on the mounting plate 1, a driving gear coaxially fixedly mounted on the output shaft of the servo motor, and a gear ring fixedly sleeved on the bottom end of the rotary tube, and the gear ring is meshed with the driving gear.

[0018] Wherein, the movable connecting part includes a connecting pipe fixedly arranged on the second mounting plate and connected with the branch pipe, the connecting pipe is slidably sleeved with a butt joint pipe through a linear sliding rod, the butt joint pipe is used to be sleeved on the rotary pipe, the inner wall of the butt joint pipe is provided with an extrusion ring convex 1, the outer wall of the rotary pipe is provided with an extrusion ring convex 2, the side of the extrusion ring convex 1 away from the branch pipe is provided with a cavity rubber ring 1, the side of the butt joint pipe away from the branch pipe is provided with a cavity rubber ring 2, and the inner cavity of the cavity rubber ring 1 is connected with the inner cavity of the cavity rubber ring 2 through a pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Firstly, the present invention utilizes a driving component to rotate the rotary tube, so as to connect the branch pipes one by one, thereby avoiding the problem that it is difficult to achieve due to the need to set up multiple main pipes. After the filling slurry enters the rotary tube through the main pipe, it flows into the branch pipe from the rotary tube. There are only two blunt-angle bends in the whole process, which greatly reduces the kinetic energy loss in the flow of the filling slurry. Due to the special shape of the rotary tube, when it rotates around the bottom end, multiple branch pipes can be distributed in a circular array on its rotation axis, so that switching of a specific rotation angle can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0023] Figure 2 It is a side view of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0025] Figure 4 It is a structural explosion diagram of the rotating connecting part of the present invention;

[0026] Figure 5It is a longitudinal section view of the movable connecting portion of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 1. Mounting bracket; 2. Pipeline switching structure; 3. Main pipeline; 4. Branch pipeline; 5. Mounting plate one; 6. Mounting plate two; 7. Rotary tube; 8. Driving component; 71. Rotating connecting part; 72. Movable connecting part; 9. Slide; 10. Slide plate; 11. Flow hole; 12. Linear driving part; 13. Mounting plate three; 14. Fixed sleeve; 15. Bearing; 81. Servo motor; 82. Gear ring; 83. Driving gear; 721. Connecting tube; 722. Butt tube; 723. Linear sliding rod; 724. Extrusion ring convex two; 725. Extrusion ring convex one; 726. Cavity rubber ring one; 727. Cavity rubber ring two. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] In order to solve the problem that there are multiple 90-degree bends in the switching device of the patent document with authorization announcement number CN220488366U, which leads to excessive kinetic energy loss of the filling slurry and easy solidification, the present invention provides a multi-directional switching device for a mine filling slurry conveying pipeline, including a mounting bracket 1, a pipeline switching structure 2, a main pipeline 3 and a plurality of branch pipelines 4, the main pipeline 3 is arranged on one side of the mounting bracket 1, the plurality of branch pipelines 4 are arranged on the other side of the mounting bracket 1, the pipeline switching structure 2 is arranged on the mounting bracket 1, and the pipeline switching structure 2 is used to The main pipeline 3 is connected with multiple branch pipelines 4 one by one, and the pipeline switching structure 2 includes a mounting plate 1 5, a mounting plate 2 6, a rotary tube 7 and a driving component 8; the bottom ends of the mounting plate 1 5 and the mounting plate 2 6 are fixedly mounted on the mounting bracket 1, one end of the rotary tube 7 has a rotating connecting portion 71, and the rotating connecting portion 71 is rotatably mounted on the mounting plate 1 5, and multiple branch pipelines 4 are fixedly mounted on the mounting plate 2 6 in a circumferential array. The driving component 8 is used to drive the bottom end of the rotary tube 7 to rotate, and the other end of the rotary tube 7 is movably connected to the branch pipeline 4 through a movable connecting portion 72.

[0031] The working principle of the present invention is as follows:

[0032] Firstly, the present invention utilizes a driving component 8 (any device with a rotational drive and a hovering function after rotating a certain angle) to rotate a rotary tube 7 (similar to a "z" shape, with both upper and lower ends being a section of horizontal tube, with an inclined tube in the middle connecting the two horizontal tubes, and the angles between the inclined tube and the two horizontal tubes are both obtuse angles), so as to connect the branch pipes 4 one by one, thereby avoiding the problem of difficulty in achieving the desired effect due to the need to set up multiple main pipes 3. After the filling slurry enters the rotary tube 7 through the main pipe 3, it flows into the branch pipe 4 through the rotary tube 7. There are only two obtuse bends in the entire process, which greatly reduces the kinetic energy loss in the flow of the filling slurry. Due to the special shape of the rotary tube 7, when it rotates around the bottom end (actually, it is the end of the rotary tube 7 away from the mounting plate 6. When the rotary tube 7 rotates, this end is not necessarily the actual bottom end, but it is recorded as the bottom end for the convenience of description), multiple branch pipes 4 can be distributed in a circular array on the rotation axis thereof, so that switching of a specific rotation angle can be achieved.

[0033] Specifically, one end of the rotating connecting part 71 is fixedly connected to the main pipeline 3, and the other end is rotatably connected to the rotary tube 7. The fixed connection can be a direct welding seal or a static seal in the prior art, and the rotating connection is a dynamic seal in the prior art, such as a packing seal and a mechanical seal, which are not specifically limited in the present invention.

[0034] Specifically, the movable connecting part 72 can be a pair of sealing flanges, which are fixedly and sealingly installed on the rotary tube 7 and the branch pipe 4 respectively. When the rotary tube 7 rotates, the pair of sealing flanges are removed; and when the rotary tube 7 is suspended, the pair of sealing flanges are sealed and connected using bolts. Other forms are also acceptable and are not specifically limited in the present invention.

[0035] In order to prevent the rotary tube 7 from being staggered with the branch pipe 4 when the rotary tube 7 is rotated, if the delivery of the filling slurry is not closed at this time, it will cause it to overflow from the rotary tube 7, so the present invention is provided:

[0036] A slide groove 9 is provided on the rotating connecting part 71, and a slide plate 10 is slidably installed in the slide groove 9. A flow hole 11 is provided on the slide plate 10, and the slide plate 10 is driven to slide by a linear driving member 12; when the axis of the flow hole 11 on the slide plate 10 coincides with the axis of the rotating connecting part 71, the projection of the flow hole 11 and the internal channel of the rotating connecting part 71 on the vertical plane coincides; when the linear driving member 12 drives the slide plate 10 to slide to the bottom end, the slide plate 10 can completely close the internal channel of the rotating connecting part 71.

[0037] When the driving component 8 drives the rotary tube 7 to rotate, the linear driving component 12 drives the slide plate 10 to slide downward, so that the flow holes 11 on the slide plate 10 will gradually stagger with the internal channel of the rotating connecting part 71 until the two are completely staggered, and the non-flow holes 11 on the slide plate 10 will close the rotating connecting part 71. At this time, the main pipeline 3 stops supplying filling slurry to the rotary tube 7. On the one hand, it can prevent the overflow of the filling slurry. On the other hand, since the left end of the rotary tube 7 is closed, it is convenient to clean the inside of the rotary tube 7. Accordingly, the present invention also facilitates the cleaning of the branch pipeline 4 after use through this rotation switching method.

[0038] In addition, the flow hole 11 is provided on the slide plate 10 to seal the rotating connecting portion 71. Compared with the general sealing method (such as a valve), the connecting state has no corners, which avoids the deceleration of the filling slurry. Therefore, the cross-section of the opening is large and less prone to blockage.

[0039] Specifically, the linear drive member 12 is a telescopic cylinder whose bottom is fixedly connected to the mounting bracket 1 through a mounting plate 3 13 .

[0040] Specifically, the main pipeline 3 is fixedly mounted on the mounting bracket 1; the bottom end of the rotating tube 7 (referring to its left end) is rotatably mounted on the mounting plate 5 through a bearing 15 to enhance the rotation stability of the rotating tube 7 and reduce its rotation friction; a through groove is provided on the mounting plate 5 for the portion of the slide groove 9 provided on the rotating connecting portion 71 to pass through, and a fixing sleeve 14 is provided on the through groove for fixing the portion of the slide groove 9 provided on the rotating connecting portion 71 to resist the inertia moment generated during the sliding process of the slide plate 10 and enhance its stability.

[0041] Specifically, the rotating connecting portion 71 is a sleeve having one end sleeved on the end of the main pipeline 3 and the other end sleeved on the bottom end (referring to the left end) of the rotary tube 7, that is, one end of the sleeve is sealed and connected to the main pipeline 3 by welding or a static sealing form in the prior art, and the other end of the sleeve is rotatably sleeved on the rotary tube 7 by a dynamic sealing form in the prior art.

[0042] Specifically, the driving component 8 includes a servo motor 81 fixedly mounted on the mounting plate 5, a driving gear 83 coaxially fixedly mounted on the output shaft of the servo motor 81, and a ring gear 82 fixedly sleeved on the bottom end (referring to its left end) of the rotary tube 7, and the ring gear 82 is meshed with the driving gear 83.

[0043] When the servo motor 81 drives the driving gear 83 to rotate, the rotation of the driving gear 83 drives the ring gear 82 to rotate by a certain angle, and the ring gear 82 drives the left end of the rotary tube 7 fixedly connected thereto to rotate.

[0044] On the other hand, photoelectric sensors having the same number as the branch pipes 4 can be installed on any of the output shaft of the servo motor 81, the drive gear 83 or the ring gear 82, so that the position of the rotating pipe 7 can be controlled by sensing the position of the photoelectric sensors, and the slide plate 10 can be controlled accordingly. The present invention does not limit the specific method, and only needs to adopt a method that can achieve quantitative rotation and monitoring of the angle.

[0045] Since the installation and removal of the flange may involve the use of manual labor, resulting in high costs and low efficiency, the present invention also replaces the flange of the movable connecting part 72 in the above embodiment with the following structure: the movable connecting part 72 includes a connecting pipe 721 fixedly arranged on the mounting plate 2 6 and connected to the branch pipe 4, the connecting pipe 721 is slidably sleeved with a butt pipe 722 through a linear sliding rod 723, the butt pipe 722 is used to be sleeved on the rotary pipe 7, the inner wall of the butt pipe 722 is provided with an extrusion ring convex 1 725, the outer wall of the rotary pipe 7 is provided with an extrusion ring convex 2 724, the side of the extrusion ring convex 1 725 away from the branch pipe 4 is provided with a cavity rubber ring 1 726, the side of the butt pipe 722 away from the branch pipe 4 is provided with a cavity rubber ring 2 727, and the inner cavity of the cavity rubber ring 1 726 and the cavity rubber ring 2 727 are connected through a pipeline.

[0046] In the initial position, the butt joint tube 722 is retracted in the connecting tube 721, and the rotation of the rotating tube 7 will not be hindered by the butt joint tube 722. When the right end of the rotating tube 7 is directly opposite to the butt joint tube 722, the butt joint tube 722 is slid to the left by the linear sliding rod 723 until the second cavity rubber ring 727 contacts the second extrusion ring convex 724. At this time, the second cavity rubber ring 727 is squeezed, and the gas in the inner cavity of the second cavity rubber ring 727 can be transferred to the first cavity rubber ring 726 through the pipeline, so that the volume of the second cavity rubber ring 727 is reduced. , until it finally passes through the extrusion ring convex 2 724, and then to the extrusion ring convex 1 725 and the extrusion ring convex 2 724 gradually approach each other, and at the same time squeeze the cavity rubber ring 1 726, the gas in the cavity rubber ring 1 726 is transferred to the cavity rubber ring 1 726 through the pipeline, and the cavity rubber ring 1 726 expands until it contacts the rotary tube 7, and finally forms a double seal with the cavity rubber ring 1 726 as the first seal and the cavity rubber ring 2 727 as the second seal. This process has strong sealing performance and is automatically controlled, which can significantly reduce the difficulty of flange installation.

[0047] In the description of the present invention, it should be noted that, 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A multi-directional switching device for conveying a filling slurry pipeline in a mine, comprising a mounting bracket (1), a pipeline switching structure (2), a main pipeline (3) and a plurality of branch pipelines (4), wherein the main pipeline (3) is arranged on one side of the mounting bracket (1), the plurality of branch pipelines (4) are arranged on the other side of the mounting bracket (1), the pipeline switching structure (2) is arranged on the mounting bracket (1), and the pipeline switching structure (2) is used to connect the main pipeline (3) with the plurality of branch pipelines (4) one by one; characterized in that: The pipeline switching structure (2) comprises a mounting plate 1 (5), a mounting plate 2 (6), a rotary tube (7) and a driving component (8); the bottom ends of the mounting plate 1 (5) and the mounting plate 2 (6) are fixedly mounted on the mounting bracket (1); one end of the rotary tube (7) has a rotating connecting portion (71); the rotating connecting portion (71) is rotatably mounted on the mounting plate 1 (5); a plurality of branch pipelines (4) are fixedly mounted on the mounting plate 2 (6) in a circumferential array; the driving component (8) is used to drive the bottom end of the rotary tube (7) to rotate; the other end of the rotary tube (7) is movably connected to the branch pipeline (4) via a movable connecting portion (72); The movable connecting portion (72) comprises a connecting pipe (721) fixedly arranged on the second mounting plate (6) and connected to the branch pipe (4); the connecting pipe (721) is slidably sleeved with a butt joint pipe (722) via a linear sliding rod (723); the butt joint pipe (722) is used to be sleeved on the screw-on pipe (7); an inner wall of the butt joint pipe (722) is provided with a first extrusion ring protrusion (725); an outer wall of the screw-on pipe (7) is provided with a second extrusion ring protrusion (724); a first cavity rubber ring (726) is provided on a side of the first extrusion ring protrusion (725) away from the branch pipe (4); a second cavity rubber ring (727) is provided on a side of the butt joint pipe (722) away from the branch pipe (4); and the inner cavities of the first cavity rubber ring (726) and the second cavity rubber ring (727) are connected via a pipe.

2. The multi-directional switching device for conveying pipelines of mine filling slurry according to claim 1 is characterized in that: The rotating connecting portion (71) is provided with a slide groove (9), a slide plate (10) is slidably mounted in the slide groove (9), a flow hole (11) is provided on the slide plate (10), and the slide plate (10) is used to drive the slide plate (10) to slide via a linear drive member (12); When the axis of the flow hole (11) on the slide plate (10) coincides with the axis of the rotating connecting portion (71), the projections of the flow hole (11) and the internal channel of the rotating connecting portion (71) on the vertical plane coincide; When the linear drive member (12) drives the slide plate (10) to slide to the bottom, the slide plate (10) is able to completely close the internal passage of the rotating connecting portion (71).

3. The multi-directional switching device for conveying pipelines of mine filling slurry according to claim 2 is characterized in that: The linear drive member (12) is a telescopic cylinder whose bottom is fixedly connected to the mounting bracket (1) via a mounting plate three (13).

4. The multi-directional switching device for conveying pipelines of mine filling slurry according to claim 3 is characterized in that: The main pipeline (3) is fixedly mounted on the mounting bracket (1); The bottom end of the rotary tube (7) is rotatably mounted on the first mounting plate (5) via a bearing (15); The first mounting plate (5) is provided with a through groove for allowing the portion of the slide groove (9) provided on the rotating connecting portion (71) to pass through, and the through groove is provided with a fixing sleeve (14) for fixing the portion of the slide groove (9) provided on the rotating connecting portion (71).

5. The multi-directional switching device for conveying pipelines of mine filling slurry according to claim 4 is characterized in that: The rotating connecting portion (71) is a sleeve having one end sleeved on the end of the main pipe (3) and the other end sleeved on the bottom end of the rotating pipe (7).

6. The multi-directional switching device for conveying pipelines of mine filling slurry according to claim 1 is characterized in that: The driving component (8) comprises a servo motor (81) fixedly mounted on the mounting plate (5), a driving gear (83) coaxially fixedly mounted on the output shaft of the servo motor (81), and a gear ring (82) fixedly sleeved on the bottom end of the rotary tube (7), the gear ring (82) meshing with the driving gear (83).

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