Coal gangue slurry long distance pipeline transportation anti-blocking device
Patent Information
- Application Number
- CN202522504981.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-26
AI Technical Summary
然而在对于长距离管道运输过程中，用于泵送压力的逐步减小，容易造成浆液在管道内的沉积，随着时间的增长，进而造成管道的堵塞，影响浆液的运输
通过在运输管道上间隔安装防堵塞机构，使煤矸石浆液在运输管道内经过防堵塞机构时，连通管上连通的压力气体吹向叶片，使叶片在流动的浆液和气体的共同作用下旋转，同时两处转轴之间经过动力传递组件保证转轴上的叶片进行稳定的相向旋转，对经过的浆液向前拨动加压，保证浆液流动的动力，避免浆液因长距离流动造成动力不足而形成沉淀堵塞，提高了长距离运输效果。
Smart Images
Figure CN224814634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal gangue slurry transportation technology, and in particular to an anti-blocking device for long-distance pipeline transportation of coal gangue slurry. Background Technology
[0002] Coal gangue is waste and gangue generated during coal mining. If not properly treated and managed locally, it can have a significant impact on the environment. Therefore, establishing a coal gangue transportation management system is a necessary measure to protect the ecological environment and conserve resources. Currently, coal gangue is mainly processed through a three-stage crushing process using a jaw crusher, impact crusher, and vertical mill to achieve a particle size ≤5mm (for low-concentration slurry) or below 0.2mm (for delamination grouting). The gangue powder is then mixed with cementitious materials (cement, fly ash), and water in a predetermined ratio, typically at a concentration of 60%-70%, to ensure the slurry's fluidity and solidification strength. The coal gangue slurry is then pumped to the underground goaf using coal gangue slurry filling pipeline technology, achieving the dual goals of solid waste resource utilization and goaf remediation. However, during long-distance pipeline transportation, the gradual reduction in pumping pressure can easily cause slurry deposition within the pipeline. Over time, this can lead to pipeline blockage, affecting slurry transportation. Utility Model Content
[0003] The purpose of this invention is to provide a device for preventing blockages in long-distance pipeline transportation of coal gangue slurry in order to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions: A long-distance pipeline transportation anti-clogging device for coal gangue slurry includes an anti-clogging mechanism installed at intervals between transportation pipelines to increase the transportation power of the coal gangue slurry in the pipeline. The anti-clogging mechanism includes an anti-clogging box with connecting pipes running through both ends. Spherical cavities are provided at the front and rear ends of the inner side of the anti-clogging box. A rotating shaft is vertically installed in the spherical cavity. Blades are evenly distributed on the outer diameter of the rotating shaft around the inner circumference of the spherical cavity. A power transmission component that causes the two rotating shafts to rotate in opposite directions is installed at the upper end of the rotating shaft through the anti-clogging box. An inclined air pipe is provided on the connecting pipe at the slurry inlet end. A connecting pipe is connected to the inclined air pipe. The end of the connecting pipe is connected to pressurized gas. The inclined air pipes are arranged in opposite directions, with the inclined air pipes facing the edge of the adjacent blades in the middle part of the anti-clogging box. The blades extend into the rotation area of the other blade.
[0005] Further configuration: The power transmission assembly includes a main gear fixedly mounted on the upper side of the rotating shaft, two support shafts are provided between the main gears, and meshing transmission gears are installed on the support shafts. A cover is installed on the upper end of the anti-blocking box, which covers the outside of the power transmission assembly.
[0006] Further configuration: The center lines of the support shaft and the rotating shaft are on the same horizontal plane, the support shaft is rotatably connected to the anti-blocking box and the box cover, and the main gear meshes and rotates with the adjacent transmission gear.
[0007] Further details: The rotating shaft is rotatably connected to the anti-blocking box, and a sealing ring is installed at the rotatable connection between the rotating shaft and the anti-blocking box.
[0008] Further details: The inclined air tube is welded to the connecting tube, and the connecting tube is welded to the anti-blocking box.
[0009] Further features: The lower end of the anti-clogging box is equipped with a discharge assembly for cleaning the inner cavity of the anti-clogging box.
[0010] Further configuration: The unloading assembly includes a cleaning pipe connected to the lower end of the anti-blocking box. An end cap is installed at the lower end of the cleaning pipe. A spring is fixedly connected to the upper end of the end cap. A baffle is installed at the upper end of the spring. A sealing ring is fitted around the outer ring of the baffle.
[0011] Further details: The cleaning tube is welded to the anti-clogging box, the end cap is connected to the cleaning tube by threads, and the sealing ring is slidably connected to the inner wall of the cleaning tube.
[0012] Further configuration: In its natural state, the baffle is flush with the inner bottom wall of the anti-blocking box.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By installing anti-clogging mechanisms at intervals on the transport pipeline, when the coal gangue slurry passes through the anti-clogging mechanism in the transport pipeline, the pressurized gas connected in the connecting pipe blows onto the blades, causing the blades to rotate under the combined action of the flowing slurry and gas. At the same time, the power transmission component between the two rotating shafts ensures that the blades on the rotating shafts rotate stably in opposite directions, pushing and pressurizing the passing slurry forward, ensuring the power of the slurry flow, and avoiding the formation of sedimentation and blockage due to insufficient power caused by long-distance flow of the slurry, thus improving the long-distance transportation efficiency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to the present invention; Figure 2 This is a schematic diagram of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to this utility model from another perspective. Figure 3 This is a half-sectional structural schematic diagram of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to the present invention; Figure 4 This is a schematic diagram of the main cross-sectional structure of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to the present invention; Figure 5 This is a top-section structural diagram of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to the present invention; Figure 6 This is a side sectional structural diagram of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to the present invention; Figure 7 This is a schematic diagram of the structure of some parts of the anti-blocking device for long-distance pipeline transportation of coal gangue slurry described in this utility model.
[0016] The annotations in the attached figures are explained as follows: 1. Transport pipeline; 2. Anti-blocking box; 21. Connecting pipe; 22. Spherical cavity; 23. Rotating shaft; 24. Blade; 25. Main gear; 26. Support shaft; 27. Transmission gear; 28. Box cover; 29. Angled air pipe; 210. Connecting pipe; 31. Cleaning pipe; 32. End cap; 33. Spring; 34. Baffle; 35. Sealing ring. Detailed Implementation
[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-7 As shown, a long-distance pipeline transportation anti-clogging device for coal gangue slurry includes anti-clogging mechanisms installed at intervals between transportation pipelines 1 to increase the transportation power of the coal gangue slurry in the pipeline.
[0020] In this embodiment: the anti-blocking mechanism includes an anti-blocking box 2, with connecting pipes 21 extending through both ends of the anti-blocking box 2. Flanges connected to the transport pipeline 1 are provided at the ends of the connecting pipes 21. Spherical cavities 22 are provided at both the front and rear ends of the inner side of the anti-blocking box 2. A rotating shaft 23 is vertically arranged inside the spherical cavity 22. Blades 24 are evenly distributed and fixed on the outer diameter of the rotating shaft 23 along the circumference of the inner circumference of the spherical cavity 22. A power transmission assembly that causes the two rotating shafts 23 to rotate in opposite directions is installed at the upper end of the rotating shaft 23, passing through the anti-blocking box 2. An inclined air pipe 29 is provided on the connecting pipe 21 at the slurry inlet end. A connecting pipe 210 is connected to the inclined air pipe 29. The end of the connecting pipe 210 is connected to pressurized gas. The inclined air pipes 29 are arranged in opposite directions. The inclined air pipes 29 face the edge of the adjacent blades 24 in the middle part of the anti-blocking box 2. The inclined air pipes 29 are welded to the connecting pipe 21. The connecting pipe 21 is welded to the anti-blocking box 2. The blades 24 extend into the rotation area of another blade 24, so that the blades 24 alternately agitate the slurry. The rotating shaft 23 is rotatably connected to the anti-blocking box 2. A sealing ring is installed at the rotatable connection between the rotating shaft 23 and the anti-blocking box 2. When the coal gangue slurry passes through the transport pipeline 1, the pressurized gas connected through the connecting pipe 210 blows onto the blade 24, causing the blade 24 to rotate under the combined action of the flowing slurry and gas. At the same time, the two rotating shafts 23 are connected by a power transmission component to ensure that the blade 24 on the rotating shaft 23 rotates stably in opposite directions, pushing and pressurizing the passing slurry forward, ensuring the power of the slurry flow, and avoiding sedimentation and blockage caused by insufficient power due to long-distance flow of the slurry.
[0021] The power transmission assembly includes a main gear 25 fixedly mounted on the upper side of the rotating shaft 23. Two support shafts 26 are provided between the main gears 25. Meshing transmission gears 27 are mounted on the support shafts 26. A cover 28 covering the outside of the power transmission assembly is installed on the upper end of the anti-clogging box 2. The center lines of the support shafts 26 and the rotating shaft 23 are on the same horizontal plane. The support shafts 26 are rotatably connected to the anti-clogging box 2 and the cover 28. The main gear 25 meshes with the adjacent transmission gear 27 and rotates. When the rotating shaft 23 rotates, power is transmitted through the main gear 25 on the rotating shaft 23 and the transmission gear 27 on the support shaft 26, so that the two rotating shafts 23 and the blades 24 rotate stably in opposite directions, propelling the passing slurry forward.
[0022] In this embodiment: a discharge assembly for cleaning the inner cavity of the anti-blocking box 2 is provided at the lower end of the anti-blocking box 2; the discharge assembly includes a cleaning pipe 31 connected to the lower end of the anti-blocking box 2, an end cap 32 is installed at the lower end of the cleaning pipe 31, a spring 33 is fixedly connected to the upper end of the end cap 32, a baffle 34 is installed at the upper end of the spring 33, and a sealing ring 35 is sleeved on the outer ring of the baffle 34; the cleaning pipe 31 is welded to the anti-blocking box 2, the end cap 32 is connected to the cleaning pipe 31 by threads, and the sealing ring 35 is connected to the cleaning pipe 31. The inner wall is slidably connected; in its natural state, the baffle 34 is flush with the inner bottom wall of the anti-blocking box 2. During use, as the amount of slurry in the anti-blocking box 2 increases, the baffle 34 is squeezed downwards, and the slurry in the pipeline is adjusted by the support and reset of the spring 33. When it is necessary to clean the anti-blocking box 2 later, the end cover 32 can be rotated to remove it, and the spring 33 and the baffle 34 can be pulled out, so that the debris in the anti-blocking box 2 can be cleaned quickly, avoiding the need to load and unload the entire anti-blocking box 2.
[0023] The working principle and usage process of this utility model are as follows: When the coal gangue slurry passes through the transport pipeline 1, the pressurized gas connected to the connecting pipe 210 blows onto the blades 24, causing the blades 24 to rotate under the combined action of the flowing slurry and gas. At the same time, the main gear 25 on the rotating shaft 23 meshes and rotates with the transmission gear 27 on the support shaft 26, ensuring that the blades 24 on the two rotating shafts 23 rotate stably in opposite directions, pushing and pressurizing the passing slurry forward, ensuring the power of the slurry flow. When it is necessary to clean the anti-blocking box 2, the end cover 32 is removed by rotating it, and the spring 33 and the baffle 34 are pulled out, so that the debris in the anti-blocking box 2 can be cleaned quickly, avoiding the need to load and unload the entire anti-blocking box 2, thus improving the convenience of operation.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A device for preventing blockages in long-distance pipeline transportation of coal gangue slurry, characterized in that: The system includes an anti-clogging mechanism installed at intervals between transport pipelines (1) to increase the transport power of coal gangue slurry in the pipelines; the anti-clogging mechanism includes an anti-clogging box (2), with connecting pipes (21) running through both ends of the anti-clogging box (2), and spherical cavities (22) arranged at both the front and rear ends of the inner side of the anti-clogging box (2). A rotating shaft (23) is vertically arranged inside the spherical cavity (22), and blades (24) are evenly distributed on the outer diameter of the rotating shaft (23) around the inner circumference of the spherical cavity (22). The upper end of the rotating shaft (23) passes through the anti-clogging box (2). A power transmission assembly is installed to make the two rotating shafts (23) rotate in opposite directions. An inclined air pipe (29) is provided on the connecting pipe (21) at the slurry inlet end. A connecting pipe (210) is connected to the inclined air pipe (29). The end of the connecting pipe (210) is connected to pressurized gas. The inclined air pipes (29) are arranged in opposite directions. The inclined air pipes (29) face the edge of the adjacent blade (24) in the middle part of the anti-blocking box (2). The blade (24) extends into the rotation area of the other blade (24).
2. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 1, characterized in that: The power transmission assembly includes a main gear (25) fixedly installed on the upper side of the rotating shaft (23), two support shafts (26) are provided between the main gears (25), and meshing transmission gears (27) are installed on the support shafts (26). A cover (28) covering the outside of the power transmission assembly is installed on the upper end of the anti-blocking box (2).
3. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 2, characterized in that: The center lines of the support shaft (26) and the rotating shaft (23) are on the same horizontal plane. The support shaft (26) is rotatably connected to the anti-blocking box (2) and the box cover (28). The main gear (25) meshes and rotates with the adjacent transmission gear (27).
4. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 1, characterized in that: The rotating shaft (23) is rotatably connected to the anti-blocking box (2), and a sealing ring is installed at the rotatable connection between the rotating shaft (23) and the anti-blocking box (2).
5. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 1, characterized in that: The inclined air pipe (29) is welded to the connecting pipe (21), and the connecting pipe (21) is welded to the anti-blocking box (2).
6. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 1, characterized in that: The lower end of the anti-blocking box (2) is provided with a discharge assembly for cleaning the inner cavity of the anti-blocking box (2).
7. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 6, characterized in that: The unloading assembly includes a cleaning pipe (31) connected to the lower end of the anti-blocking box (2). An end cap (32) is installed at the lower end of the cleaning pipe (31). A spring (33) is fixedly connected to the upper end of the end cap (32). A baffle (34) is installed at the upper end of the spring (33). A sealing ring (35) is fitted around the outer ring of the baffle (34).
8. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 7, characterized in that: The cleaning tube (31) is welded to the anti-blocking box (2), the end cap (32) is connected to the cleaning tube (31) by a thread, and the sealing ring (35) is slidably connected to the inner wall of the cleaning tube (31).
9. The anti-blocking device for long-distance pipeline transportation of coal gangue slurry according to claim 7, characterized in that: In its natural state, the spring (33) makes the baffle (34) flush with the inner bottom wall of the anti-blocking box (2).