Ore pulp conveying pipeline internal slurry flow state observation device and ore pulp conveying pipeline

Abstract

The utility model discloses a device for observing the flow state of slurry inside an ore pulp conveying pipeline, which comprises a transparent pipe body and further comprises a first connecting assembly used for arranging the transparent pipe body on the ore pulp conveying pipeline, and the two ends of the transparent pipe body are connected with the first connecting assembly. A supporting assembly used for bearing conveying pressure is arranged between the first connecting assemblies at the two ends of the transparent pipe body. The utility model further discloses an ore pulp conveying pipeline with the internal slurry flow state capable of being observed. According to the observation device, the first connecting assembly and the supporting assembly are arranged, so that the observation device is stable in structure, high in pressure bearing capacity and capable of bearing large pressure generated in the ore body conveying process. The ore pulp conveying pipeline can visually detect the flow state change of the slurry in the ore pulp pipeline through the observation device, and the critical flow velocity is observed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of ore pulp conveying, especially relates to a flow state observation device. BACKGROUND

[0002] Pipeline transportation has developed into the fifth largest transportation mode in the world after highway, railway, aviation and water transportation. In recent years, the slurry pipeline transportation technology in China has achieved cross-line, multi-type, long-distance and other developments and improvements. Slurry pipeline transportation has expanded from steel and metallurgical mines to non-ferrous and non-metallic mine tailings transportation, mine cement filling, ocean mining, coal transportation and other industrial fields. In the actual production of slurry pipeline transportation, critical flow velocity and resistance loss are almost the key to determine whether the pipeline operation is successful or not. Critical flow velocity and resistance loss are greatly related to the flow state change of the slurry inside the pipeline, and the observation of the flow state of the slurry inside the slurry pipeline is particularly important.

[0003] Patent document CN204854802U discloses a pipeline through liquid observation device, which comprises a vertical transparent pipeline, flanges are arranged at both ends of the transparent pipeline, a thermometer is arranged on the side of the transparent pipeline, a bulb is arranged on the side of the transparent pipeline, a flow rate tester is further arranged in the pipeline, the flow rate tester is connected with a display device, and liquid flows through the glass tube to measure the flow rate. Since the slurry in the slurry pipeline transportation is a solid-liquid two-phase flow, a greater pressure is needed to push the slurry through the pipeline, resulting in that the slurry pipeline usually bears a large pressure. The device is used for observing liquid and does not consider the pressure bearing problem, and has weak pressure bearing capacity and is not suitable for tailings slurry pipeline transportation. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies and defects mentioned in the above background technology, and to provide a slurry pipeline internal slurry flow state observation device and a slurry pipeline with observable internal slurry flow state, which can bear the greater pressure generated in the slurry conveying process and accurately observe the slurry settling behavior when the pipeline is running and standing.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0006] A slurry pipeline internal slurry flow state observation device, comprising a transparent pipe body, further comprising a first connecting assembly for arranging the transparent pipe body on the slurry pipeline, both ends of the transparent pipe body are connected with the first connecting assembly, and a support assembly for bearing the conveying pressure is arranged between the first connecting assemblies at both ends of the transparent pipe body. The first connecting assemblies at both ends of the transparent pipe body are connected with the support assembly to provide support for the transparent pipe body, strengthen the overall structure and ensure the pressure bearing capacity of the observation device.

[0007] Preferably, the first connecting assembly comprises a first flange plate and a connecting sleeve sleeved outside the transparent tube body, the connecting sleeve is connected with the flange plate, and the end of the transparent tube body is arranged on the flange plate. The connecting sleeve is tightly combined with the outer wall of the transparent tube body, one end of the connecting sleeve is connected with the flange plate, the stability of the structure is improved, and a good seal is formed between the transparent tube body and the flange plate.

[0008] Preferably, an inner clamping step for clamping the transparent tube body is arranged on the first flange plate. The inner clamping step can ensure that the end of the transparent tube body is accurately clamped on the flange plate, and the sealing performance between the transparent tube body and the flange plate is improved.

[0009] Preferably, the supporting assembly comprises a plurality of supporting steel pipes, and the supporting steel pipes are fixed between the connecting assemblies at the two ends of the transparent tube body. The supporting steel pipes are connected to the connecting assemblies at the two ends of the transparent tube body, so that additional support is provided for the transparent tube body, and the pressure bearing capacity of the observation device is increased.

[0010] Preferably, a scale for observing the settling behavior of the slurry is arranged on the outer wall of the transparent tube body. When the slurry in the pipeline is at rest, the scale can be used to observe and calculate the settling behavior parameters of the slurry and measure the repose angle and other parameters of the slurry at rest, so as to meet the production needs.

[0011] As a general technical concept, the utility model also provides a mineral slurry conveying pipeline with the internal slurry flow state being observable, which comprises the mineral slurry conveying pipeline and the observation device, the mineral slurry conveying pipeline is arranged at the two ends of the observation device, the end of the mineral slurry conveying pipeline is provided with a second connecting assembly for matching the first connecting assembly, and the mineral slurry conveying pipeline and the observation device are connected through the first connecting assembly and the second connecting assembly. The observation device can be arranged at any position of the mineral slurry conveying pipeline, so that multi-point real-time observation is met, when the mineral slurry flows through the transparent pipeline, the state of the slurry can be observed, such as laminar flow or turbulent flow, full-pipe flow or non-full-pipe flow, whether the solid in the slurry has a deposition phenomenon, and the critical flow velocity, and the process parameters of pipeline conveying can be better adjusted according to the state of the observed mineral slurry.

[0012] Preferably, the first connecting assembly comprises a first flange plate, the second connecting assembly comprises a second flange plate, and the first flange plate and the second flange plate are connected through bolts and nuts.

[0013] Preferably, the first connecting assembly comprises a first flange plate, the second connecting assembly comprises a second flange plate, the supporting assembly comprises a plurality of threaded rods, both ends of the threaded rods are provided with threads, and both ends of the threaded rods are located at the connecting positions of the first flange plate and the second flange plate at both ends of the transparent pipe body, and the first flange plate and the second flange plate at both ends of the transparent pipe body are fixedly connected through cooperating nuts. The threaded rods are arranged in the bolt holes corresponding to the first flange plate and the second flange plate at both ends of the transparent pipe body, the threads protruding from the bolt holes cooperate with the nuts, so that the first flange plate and the second flange plate are fixedly connected, and the threaded rods can provide additional support for the transparent pipe body and increase the pressure bearing capacity of the observation device.

[0014] Compared with the prior art, the observation device has the advantages that:

[0015] The observation device is stable in structure and high in pressure bearing capacity, and can bear the large pressure generated in the ore body conveying process. The ore slurry conveying pipeline can intuitively detect the flow state change of the slurry in the pipeline and observe the critical flow velocity. The device is simple to install, low in cost, safe and environmentally friendly, and can provide auxiliary effect for the safe and stable operation of the ore slurry pipeline conveying engineering in the fields of mining, metallurgy, chemical industry and environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 It is a perspective structural schematic view of the ore slurry conveying pipeline internal slurry flow state observation device of embodiment 1.

[0018] Figure 2 It is a front view of the ore slurry conveying pipeline internal slurry flow state observation device of embodiment 1.

[0019] Figure 3 It is a structural schematic view of A-A section. Figure 2

[0020] Figure 4 It is a front view of the ore slurry conveying pipeline internal slurry flow state observation device of embodiment 2.

[0021] LEGEND

[0022] ​1. Transparent tube body; 2. First flange; 3. Connecting sleeve; 4. Supporting steel pipe; 5. Screw; 6. Second flange; 7. Scale; 8. Bolt; 9. Nut. Detailed Implementation

[0023] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0024] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0025] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0026] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0027] Example 1:

[0028] like Figures 1 to 3 As shown, the slurry flow state observation device inside the slurry conveying pipeline of this embodiment includes a transparent tube 1 and a first connecting component for placing the transparent tube 1 on the slurry conveying pipeline. Both ends of the transparent tube 1 are connected to the first connecting component, and a support component for bearing the conveying pressure is provided between the first connecting components at both ends of the transparent tube 1.

[0029] In this embodiment, the first connecting assembly includes a first flange 2 and a connecting sleeve 3 sleeved outside the transparent tube 1. The connecting sleeve 3 is connected to the first flange 2, and the end of the transparent tube 1 abuts against the first flange 2.

[0030] like Figure 3 As shown, in this embodiment, the first flange 2 is provided with a locking inner step for locking the transparent tube 1.

[0031] In this embodiment, the support assembly includes multiple support steel pipes 4 (e.g., 4 pipes), and the support steel pipes 4 are fixed between the first connecting assemblies at both ends of the transparent tube body 1.

[0032] In this embodiment, the outer wall of the transparent tube 1 is provided with a scale 7 for observing the sedimentation behavior of the slurry.

[0033] In this embodiment, specifically, the first flange 2 is fixedly connected to the connecting sleeve 3 and sleeved at both ends of the transparent tube 1. The inner diameter of the inner step of the first flange 2 and the inner diameter of the connecting sleeve 3 are machined according to the outer wall of the transparent tube 1 to ensure a tight fit with the transparent tube 1. The two ends of the supporting steel pipe 4 are fixedly connected to the outer walls of the connecting sleeves 3 at both ends of the transparent tube 1, and multiple supporting steel pipes 4 are evenly spaced. Scale 7 is horizontally set on the outer wall of the transparent tube 1.

[0034] In this embodiment, the transparent tube 1 is a transparent plexiglass tube, the connecting sleeve 3 is a seamless steel tube, and the supporting steel tube 4 is four hot-rolled round steel bars. In other embodiments, the transparent tube 1 can be a transparent quartz glass tube, a transparent polycarbonate tube, etc., the connecting sleeve 3 can be an alloy steel tube, etc., and the supporting steel tube 4 can be a cold-drawn round steel bar, etc. The number of supporting steel tubes 4 can be determined according to the actual situation.

[0035] The internal slurry flow observable slurry transport pipeline of this embodiment includes a slurry transport pipeline and an observation device. The slurry transport pipeline is located at both ends of the observation device. The end of the slurry transport pipeline is provided with a second connecting component for matching with the first connecting component. The slurry transport pipeline and the observation device are connected through the first connecting component and the second connecting component.

[0036] In this embodiment, the first connecting assembly includes a first flange 2, and the second connecting assembly includes a second flange 6. Adjacent first flanges 2 and second flanges 6 are connected by bolts 8 and nuts 9.

[0037] In this embodiment, the transparent tube 1 can be 800mm in length and 250mm in diameter. The specific installation steps are as follows: Before installing the observation device on the slurry conveying pipeline, cut an opening of approximately 820mm at the observation location on the slurry conveying pipeline. Then, perform a trial installation of the observation device. After the position is determined, weld and fix both ends of the slurry conveying pipeline opening to the second flange 6. Finally, place the observation device between the two second flanges 6 for installation. Securely connect the adjacent first flange 2 and second flange 6 to the slurry conveying pipeline using bolts 8 and nuts 9. Both the first flange 2 and the second flange 6 are steel structure flanges.

[0038] Example 2:

[0039] like Figure 4 As shown, this embodiment is basically the same as embodiment 1, except that: the first connecting component includes a first flange 2, the second connecting component includes a second flange 6, and the support component includes multiple screws 5. Both ends of the screws 5 are threaded, and the two ends of the screws 5 are respectively located at the connection points of the first flange 2 and the second flange 6 at both ends of the transparent tube 1. The first flange 2 and the second flange 6 at both ends of the transparent tube 1 are fixedly connected with the nuts 9.

[0040] In the embodiment, specifically, the screw rod 5 is four steel screw rods, which are uniformly and spacedly arranged in the corresponding bolt holes of the first flange plate 2 and the second flange plate 6 at both ends of the transparent tube body 1, the threaded nuts 9 are arranged at the bolt holes, and the remaining bolt holes of the first flange plate 2 and the second flange plate 6 are matched by the bolts 8 and the nuts 9, so that the first flange plate 2 and the second flange plate 6 are tightly connected. In other embodiments, the number of the screw rod 5 can be set according to actual needs, for example, all the bolt holes are matched by the screw rod 5 and the nut 9 to realize the tight connection of the first flange plate 2 and the second flange plate 6.

[0041] In the embodiment, the support steel pipe 4 can also be used as a support assembly, but more preferably, the support steel pipe 4 is omitted (i.e. Figure 4 In the embodiment, the bolt 5 is used instead of the support steel pipe 4, so that the first flange plate 2 and the second flange plate 6 are tightly connected by only the bolt 5, the pressure bearing capacity of the observation device is ensured, the process of welding the support steel pipe 4 can be omitted, the components are less, and the assembly is more convenient.

[0042] In the above embodiment, rust removal, paint brushing and welding of all steel components, including steel structure flanges, seamless steel pipes, hot-rolled round steel and steel screw rods, are continuous, and water seepage is not allowed. The transparent tube body 1 and all the adhered steel components are sealed by waterproof glue, and water leakage is not allowed.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for observing the flow state of slurry inside a slurry conveying pipeline, comprising a transparent tube (1), characterized in that, It also includes a first connecting component for placing the transparent tube (1) on the slurry conveying pipeline, both ends of the transparent tube (1) are connected to the first connecting component, and a support component for bearing the conveying pressure is provided between the first connecting components at both ends of the transparent tube (1).

2. The slurry flow state observation device inside the slurry conveying pipeline according to claim 1, characterized in that, The first connecting assembly includes a first flange (2) and a connecting sleeve (3) sleeved outside the transparent tube (1). The connecting sleeve (3) is connected to the first flange (2), and the end of the transparent tube (1) abuts against the first flange (2).

3. The slurry flow state observation device inside the slurry conveying pipeline according to claim 2, wherein the first flange (2) is provided with a locking inner step for locking the transparent pipe body (1).

4. The slurry flow state observation device inside the slurry conveying pipeline according to claim 1, characterized in that, The support assembly includes multiple support steel pipes (4), which are fixed between the first connecting components at both ends of the transparent tube body (1).

5. The slurry flow state observation device inside the slurry conveying pipeline according to claim 1, characterized in that, The outer wall of the transparent tube (1) is provided with a scale (7) for observing the sedimentation behavior of the slurry.

6. A slurry transport pipeline with observable internal slurry flow, characterized in that, The device includes a slurry transport pipeline and an observation device according to any one of claims 1-5, wherein the slurry transport pipeline is disposed at both ends of the observation device, and the end of the slurry transport pipeline is provided with a second connecting component for matching with the first connecting component, and the slurry transport pipeline and the observation device are connected through the first connecting component and the second connecting component.

7. The slurry conveying pipeline according to claim 6, characterized in that, The first connecting assembly includes a first flange (2), and the second connecting assembly includes a second flange (6). The adjacent first flange (2) and second flange (6) are connected by bolts (8) and nuts (9).

8. The slurry conveying pipeline according to claim 6, characterized in that, The first connecting component includes a first flange (2), the second connecting component includes a second flange (6), and the support component includes multiple screws (5). Both ends of the screws (5) are threaded, and the two ends of the screws (5) are respectively located at the connection points of the first flange (2) and the second flange (6) at both ends of the transparent tube (1). The first flange (2) and the second flange (6) at both ends of the transparent tube (1) are fixedly connected with nuts (9).

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