Tailing slurry discharging device

Abstract

The utility model provides a tailing slurry discharge device which comprises a fixing part, a buffer plate and a connecting part, the fixing part is used for being fixedly connected with an ore drawing pipe, one end of the connecting part is connected with the fixing part, and the other end of the connecting part is connected with the buffer plate; the buffering plate is arranged between the ore drawing pipe and the beach face of the tailing dam in a suspended mode and arranged below an opening of the ore drawing pipe, the horizontal highest point of the buffering plate is arranged on the orthographic projection extension line of the axis of the ore drawing pipe on the buffering plate, a plurality of through holes are formed in the buffering plate, and when tailing slurry is discharged through the ore drawing pipe, under the action of gravity, the tailing slurry impacts the buffering plate and is borne by the buffering plate. The buffering plate is arranged, so that tailing slurry can be dispersed by the buffering plate and discharged downwards along the through hole and the slope of the buffering plate, the potential energy of tailing discharging is dispersed, a beach face scouring pit cannot be formed, and the good scattering and scattering effect and the uniform deposition effect are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tailings slurry discharge, and particularly relates to a tailings slurry discharge device. Background Art

[0002] The dam body of a wet-drain tailings pond is mostly made of tailings accumulation. Whether the tailings discharge effect and sedimentation effect are regular not only affects the stability of the dam body, but also affects the seepage field of the tailings water in the dam body, further affecting the safety and stability of the accumulation dam. At present, the optimization of tailings discharge devices generally focuses on the improvement of the terminal pipeline type. Most of them adopt a multi-tube small-flow dispersed discharge method by controlling the tailings discharge flow. However, although the multi-tube small-flow dispersed discharge has adjusted the slope of the tailings deposition beach to a certain extent, due to the certain distance between the outlet ends of each discharge pipe and the certain height difference between the pipe mouth and the beach, the following defects are inevitable in the discharge process: when the tailings slurry flows out of the discharge pipe and contacts the beach, a crater will be formed on the beach due to the action of gravity and kinetic energy; with the crater as the center, the tailings slurry impacts the beach to form a "crater" shape, which makes it impossible for the beach to rise evenly; the tailings slurry flows in all directions with the crater as the center. The tailings slurry diffuses around the dam, and part of it flows toward the tailings sub-dam, causing scouring of the accumulation sub-dam; at the same time, there is no buffer device after the tailings slurry is discharged from the ore pipe, the flow rate is high, the deposition distance of tailings of various particle sizes becomes longer, and the slope of the beach becomes smaller, which is not conducive to the flood control of the tailings pond; the tailings deposition layer on the beach is messy, and the tailings stratification is irregular, resulting in a chaotic and irregular seepage water level in the accumulation dam; the smaller slope and the chaotic and irregular seepage water level reduce the stability of the accumulation dam, which may induce seepage damage to the accumulation dam, thereby leading to the occurrence of tailings dam burst accidents. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a tailings slurry discharge device to solve the technical problems raised in the background technology.

[0004] The utility model discloses a tailings slurry discharge device for dispersing tailings slurry discharged from a ore draw pipe, comprising:

[0005] A fixing component, used for fixedly connecting with the ore drawing pipe;

[0006] A buffer plate is provided below the opening of the ore-drawing pipe for receiving the tailings slurry, wherein the highest horizontal point of the buffer plate is provided on the extension line of the orthographic projection of the axis of the ore-drawing pipe on the buffer plate;

[0007] a connecting component, one end of which is connected to the fixing component, and the other end of which is connected to the buffer plate;

[0008] The buffer plate is provided with a plurality of through holes.

[0009] Furthermore, the buffer plate is an arched plate, and the ratio of the arch height to the bottom length of the arched plate is α.

[0010] Furthermore, the area of ​​the buffer plate is S, 0.2 m2≤S≤1.0 m2.

[0011] Furthermore, the vertical distance between the buffer plate and the opening of the ore-drawing pipe is D, 0.2m≤D≤0.5m.

[0012] Furthermore, the buffer plate includes an axisymmetric polygon, a semicircle and a circle; preferably, the buffer plate is a rectangle and a square.

[0013] Furthermore, the through hole shape includes a regular polygon and a circle.

[0014] Furthermore, the through hole diameter is d, 0.5cm≤d≤3.0cm.

[0015] Furthermore, the through holes are arranged radially from the highest horizontal point of the buffer plate to the outer edge.

[0016] Furthermore, the through holes are evenly arranged.

[0017] The utility model has the following beneficial effects:

[0018] The buffer plate in the tailings slurry discharge device provided by the utility model is suspended and arranged between the ore discharge pipe and the tailings dam beach surface, and is arranged below the pipe opening of the ore discharge pipe.

[0019] 1) The highest horizontal point of the buffer plate is set on the extended line of the projection of the axis of the ore-drawing pipe on the buffer plate. When the tailings slurry is discharged through the ore-drawing pipe, it impacts the buffer plate under the action of gravity and is received by the buffer plate, so that the tailings slurry can be dispersed by the buffer plate and discharged downward along the through holes on the buffer plate and the slope of the plate surface, dispersing the potential energy of the tailings discharge and preventing the formation of beach scour pits. It has a good effect of dispersing the ore and uniformly depositing the tailings. The opening design of the buffer plate allows the tailings slurry to be dispersed and drained by the through holes when it contacts the plate surface, avoiding the formation of "crater"-shaped punching holes below the buffer plate, and ensuring a uniform rising effect on the beach surface.

[0020] 2) The buffer plate is an arched plate. The curved surface of the arched plate changes the flow direction of the tailings slurry when passing through the buffer plate, thereby dispersing the tailings slurry flow to the side of the buffer plate to avoid the formation of a single landing point causing concentrated impact on the beach surface; the ratio of the arch height to the bottom length of the arched plate is adjusted so that It ensures that the direction of tailings slurry discharge forms an obtuse angle with the tangent of the curved surface. The flow path of tailings slurry on the arch plate is relatively long. The friction between the contact surface of tailings slurry and arch plate consumes part of the kinetic energy of tailings discharge, slows down the speed of tailings slurry discharge, and further reduces the impact of tailings slurry on the beach surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of a tailings slurry discharge device provided by some embodiments of the present invention.

[0022] Figure 2 This is a front view of a tailings slurry discharge device provided by some embodiments of the present utility model.

[0023] Figure 3 This is a left view of a tailings slurry discharge device provided in some embodiments of the present invention.

[0024] Figure 4 It is a top view of a tailings slurry discharge device provided in some embodiments of the present utility model.

[0025] Description of reference numerals:

[0026] 010 Ore pipe,

[0027] 100 fixed parts,

[0028] 200 buffer board,

[0029] 300 connecting parts. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The utility model provides a tailings slurry discharge device for dispersing tailings slurry discharged from a ore-drawing pipe 010, comprising a fixing component 100, a buffer plate 200 and a connecting component 300; wherein the fixing component 100 is used for fixed connection with the ore-drawing pipe 010; one end of the connecting component 300 is connected to the fixing component 100, and the other end of the connecting component 300 is connected to the buffer plate 200; the buffer plate 200 is arranged below the pipe mouth of the ore-drawing pipe 010 for receiving the tailings slurry, the highest horizontal point of the buffer plate 200 is arranged on the extension line of the orthographic projection of the axis of the ore-drawing pipe 010 on the buffer plate 200, and the buffer plate (200) is arranged with a plurality of through holes. The buffer plate 200 in the tailings slurry discharge device provided by the present invention is suspended and arranged between the discharge pipe 010 and the tailings dam beach, and is arranged below the mouth of the discharge pipe 010 to receive the tailings slurry. The highest horizontal point of the buffer plate 200 is set on the extension line of the orthographic projection of the axis of the discharge pipe 010 on the buffer plate 200. When the tailings slurry is discharged through the discharge pipe 010, it impacts the buffer plate 200 under the action of gravity, so that the tailings slurry can be dispersed by the buffer plate 200 and discharged downward along the through holes and slopes of the buffer plate 200, dispersing the potential energy of the tailings discharge and preventing the formation of beach scour pits. The specific landing point of the tailings slurry is related to its flow rate and viscosity. Preferably, according to the flow rate and viscosity of different tailings slurries, the specific landing point corresponding to different tailings slurries can be calculated. The highest horizontal point of the buffer plate 200 is set at the landing point, which is conducive to the downward flow of the tailings slurry without causing accumulation on the buffer plate 200. The opening design of the buffer plate 200 allows the tailings slurry to be dispersed and drained by the through holes when it contacts the plate surface, avoiding the formation of a crater under the buffer plate 200 and ensuring a uniform rising effect of the beach surface.

[0034] For example, Figure 1 As shown, the fixing component 100 includes two rings and four connecting ribs which are sleeved and fixed on the ore-discharging pipe 010, and the connecting component 300 includes six connecting rods, of which one end of four connecting rods are respectively connected to the four end points of the buffer plate, and the other ends are respectively connected to the rings of the fixing component 100, and one end of the remaining two connecting rods is connected to the midpoint of the side of the buffer plate, and the other ends are respectively connected to the rings of the fixing component 100.

[0035] In some embodiments provided by the present invention, the buffer plate 200 is an arched plate. The curved surface of the arched plate changes the flow direction of the tailings slurry when passing through the buffer plate 200, thereby dispersing the tailings slurry flow to the sides of the buffer plate 200, avoiding the formation of a single landing point causing concentrated impact on the beach surface; the ratio of the arch height to the bottom length of the arched plate is α, To ensure that the direction of tailings slurry discharge is at an obtuse angle to the tangent of the curved surface, at the same time, the flow path of the tailings slurry on the arch plate is relatively long, and the friction between the tailings slurry and the contact surface of the arch plate consumes part of the kinetic energy of the tailings discharge, slowing down the speed of the tailings slurry discharge and further reducing the impact of the tailings slurry on the beach.

[0036] The size of the buffer plate 200 needs to be adjusted according to the amount of tailings discharged to ensure that all tailings discharged fall on the buffer plate 200, avoiding an area that is too small to form an effective buffer surface. At the same time, the area of ​​the buffer plate 200 should not be too large to prevent the tailings slurry from accumulating on the buffer plate 200 and flowing poorly, or even causing blockage of the ore pipe 010. Therefore, in some embodiments provided by the present invention, the area of ​​the buffer plate 200 is S, and the area S of the buffer plate 200 is controlled within an appropriate range: 0.2㎡≤S≤1.0㎡.

[0037] When the tailings slurry flow rate or flow rate is greater, the buffer plate 200 requires a larger vertical distance D to ensure that the tailings slurry has enough time and space to decelerate and disperse. However, if the distance D is too large, the potential energy of the tailings slurry will be too large, causing a greater impact on the buffer plate 200, resulting in poor buffering effect. In some embodiments provided by the present invention, the vertical distance between the buffer plate 200 and the pipe mouth of the ore discharge pipe 010 is D, 0.2m≤D≤0.5m, to ensure better deceleration and dispersion effect.

[0038] In some embodiments provided by the present invention, the buffer plate 200 includes an axisymmetric polygon, a semicircle, and a circle; illustratively, the buffer plate 200 is a rectangle, a square, a regular hexagon, an isosceles trapezoid, a semicircle, and a circle.

[0039] In some embodiments provided herein, the through-holes include regular polygons and circles. For example, the regular polygons are squares and regular hexagons. A through-hole diameter that is too small can easily cause clogging, while a through-hole diameter that is too large cannot disperse the tailings slurry. Preferably, the through-hole diameter is d, 0.5 cm ≤ d ≤ 3.0 cm.

[0040] In some embodiments of the present invention, the through holes are arranged radially outward from the highest horizontal point of the buffer plate 200; in other embodiments of the present invention, the through holes are evenly arranged. Both embodiments can effectively disperse the tailings slurry.

[0041] The tailings slurry discharge device provided by the utility model is described below with specific embodiments:

[0042] Example

[0043] like Figures 1 to 4As shown, the tailings slurry discharge device in this embodiment includes a fixed component 100, a buffer plate 200 and a connecting component 300. The fixed component 100 includes two rings made of φ = 5.0mm diameter steel bars and four 0.5m steel connecting bars that are sleeved and fixed on the ore discharge pipe 010. The connecting component 300 includes six steel bars as connecting rods, one end of each of the four connecting rods is connected to the four end points of the buffer plate 200 respectively, and the other end is connected to the rings of the fixed component 100 respectively. One end of the remaining two connecting rods is connected to the midpoint of the side of the buffer plate 200, and the other end is connected to the rings of the fixed component 100 respectively; the buffer plate 200 is made of a standard steel plate with a thickness of 8.0mm. The buffer plate 200 is square and has a size of 1.0m×1.0m; the steel plate is bent into an arch, and the suspended distance between the arch plate and the tailings dam beach is 1.0m. The ratio of the arch height to the bottom length of the arch plate is α. Circular through holes with a diameter of 1 cm are evenly spaced on the buffer plate 200. The arched plate is suspended between the ore pipe 010 and the tailings dam beach, located below the ore pipe 010. The discharge speed of the ore pipe 010 is 1.5 m / s, the distance between the ore pipe 010 mouth and the beach is 1.5 m, and the height of the tailings reservoir sub-dam is 1.5 m. Using the tailings slurry discharge device provided by the utility model for tailings discharge operations reduces the scouring of the tailings dam beach by the tailings discharge, avoids the formation of a "crater"-like impact on the beach surface, ensures the effect of uniform beach surface rise, and achieves a relatively complete and regular tailings stratification layer on the beach surface. The seepage water level in the dam is flat, and the resulting beach surface slope is relatively large, which improves the stability of the dam and facilitates flood control in the tailings reservoir.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A tailings slurry discharge device, characterized in that: include: A fixing component (100) is used for fixed connection with the ore drawing pipe (010); A buffer plate (200), the buffer plate (200) being arranged below the opening of the ore-drawing pipe (010) for receiving the tailings slurry, the highest horizontal point of the buffer plate (200) being arranged on the orthographic projection extension line of the axis of the ore-drawing pipe (010) on the buffer plate (200); a connecting component (300), one end of the connecting component (300) being connected to the fixing component (100), and the other end of the connecting component (300) being connected to the buffer plate (200); The buffer plate (200) is provided with a plurality of through holes.

2. The tailings slurry discharge device according to claim 1, characterized in that: The buffer plate (200) is an arched plate, and the ratio of the arch height to the bottom length of the arched plate is α, 0<α≤1 / 15.

3. The tailings slurry discharge device according to claim 1, characterized in that: The area of ​​the buffer plate (200) is S, 0.2 m2≤S≤1.0 m2.

4. The tailings slurry discharge device according to claim 1, characterized in that: The vertical distance between the buffer plate (200) and the opening of the ore drawing pipe (010) is D, 0.2m≤D≤0.5m.

5. The tailings slurry discharge device according to claim 1, characterized in that: The buffer plate (200) includes an axisymmetric polygon, a semicircle, and a circle.

6. The tailings slurry discharge device according to claim 1, characterized in that: The through hole shape includes a regular polygon and a circle.

7. The tailings slurry discharge device according to claim 1, characterized in that: The through hole diameter is d, 0.5㎝≤d≤3.0㎝.

8. The tailings slurry discharge device according to claim 1, characterized in that: The through holes are arranged radially from the highest horizontal point of the buffer plate (200) toward the outer edge.

9. The tailings slurry discharge device according to claim 1, characterized in that: The through holes are evenly arranged.

10. The tailings slurry discharge device according to claim 5, characterized in that: The buffer plate (200) is rectangular and square.

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