A filling device

Abstract

The utility model relates to coal seam mining technical field especially relates to a kind of filling device, including agitator, grout feeder and anti-blocking mechanism, agitator includes stirring drum, stirring rod and stirring driver, stirring drum is equipped with stirring cavity, stirring rod is located in stirring cavity, and rotationally connected in stirring drum, stirring driver is connected in stirring rod, and stirring driver is used to drive stirring rod rotation, grout feeder includes grouting pump, material taking pipe and grouting pipe, both ends of material taking pipe are respectively connected in stirring drum and the inlet of grouting pump, one end of grouting pipe is connected in the outlet of grouting pump, and anti-blocking mechanism is located in grouting pipe, and anti-blocking mechanism can extrude or vibrate grouting pipe;Above all, the anti-blocking mechanism of the utility model filling device is located in grouting pipe, the slurry inside grouting pipe is disturbed by extruding or vibrating mode, reduces its settlement and the probability of agglomeration, and then reduce the risk of blocking.

Description

Technical Field

[0001] This utility model relates to the field of coal seam mining technology, and in particular to a filling device. Background Technology

[0002] In traditional coal seam mining, surface structures need to be relocated before mining to avoid property damage and casualties caused by surface subsidence. However, relocating surface structures is difficult, costly, and time-consuming, resulting in high mining costs. To address this, overburden separation grouting technology is widely used. This technology injects fly ash slurry into mining-induced fractures to form a support structure, effectively controlling overburden deformation and preventing surface subsidence, thus enabling mining without relocation of villages. However, fly ash particles are fine, easily agglomerate, and have adsorption properties. Fly ash slurry is more viscous and less fluid than ordinary slurries, making it more prone to clogging. When using conventional equipment (a combination of mixer, grouting pump, and grouting pipes), clogging is very likely to occur, leading to inconvenience and low work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a filling device to solve the technical problem that conventional devices are prone to clogging when grouting and filling fly ash slurry, resulting in inconvenience and low work efficiency.

[0004] To achieve the above objectives, this utility model provides a filling device, including a mixer, a grout injector, and an anti-clogging mechanism. The mixer includes a mixing cylinder, a mixing rod, and a mixing driver. The mixing cylinder has a mixing chamber, and the mixing rod is disposed in the mixing chamber and rotatably connected to the mixing cylinder. The mixing driver is connected to the mixing rod and is used to drive the mixing rod to rotate. The grout injector includes a grout pump, a material receiving pipe, and a grouting pipe. The two ends of the material receiving pipe are respectively connected to the mixing cylinder and the inlet of the grout pump. One end of the grouting pipe is connected to the outlet of the grout pump. The anti-clogging mechanism is disposed on the grouting pipe and can squeeze or vibrate the grouting pipe.

[0005] Optionally, the anti-clogging mechanism includes multiple balls, the grouting pipe includes a rigid pipe and a flexible pipe, the rigid pipe is sleeved on the outside of the flexible pipe, and the multiple balls are disposed between the rigid pipe and the flexible pipe.

[0006] Optionally, the rigid tube is provided with a rolling groove, which is an elongated groove, and a plurality of balls are disposed in the rolling groove, the balls being able to move along the length direction of the rolling groove.

[0007] Optionally, the rolling groove is arranged around the axis of the grouting pipe.

[0008] Optionally, the stirrer further includes a rotating plate and a feed pipe. The top of the stirring cylinder is provided with a top hole that extends through to the stirring chamber. The rotating plate is covered by the top hole and rotatably connected to the stirring cylinder. The top surface of the rotating plate is provided with a through feed hole. The feed hole is arranged around the axis of the rotating plate. The feed pipe is arranged through the feed hole. The stirring rod is connected to the rotating plate and / or the feed pipe.

[0009] When the stirring rod rotates, it drives the rotating plate and the feed pipe to rotate.

[0010] Optionally, the stirrer further includes a sun gear and planetary gears, which are disposed inside the stirring chamber. The planetary gears are sleeved on the outside of the feed pipe and fixedly connected to the feed pipe. The bottom end of the stirring rod is rotatably connected to the stirring cylinder, and the top end of the stirring rod is rotatably connected to the rotating plate. The sun gear is sleeved on the outside of the stirring rod and fixedly connected to the stirring rod. The wall of the stirring chamber is provided with multiple internal teeth around its axis, and the planetary gears are meshed with the sun gears and the internal teeth.

[0011] Optionally, the stirrer further includes a plurality of feed pipes, and the rotating plate is provided with a plurality of feed holes, with the feed holes and feed pipes being arranged in a one-to-one correspondence.

[0012] Optionally, the outer wall of the stirring rod is provided with multiple sets of first stirring columns spaced apart in the vertical direction, and each set of first stirring columns includes multiple first stirring columns arranged around the axis of the stirring rod.

[0013] Optionally, the cavity wall of the stirring chamber is provided with multiple sets of second stirring columns at intervals along the vertical direction. The first stirring column and the second stirring column are staggered in the vertical direction. Each set of second stirring columns includes multiple second stirring columns arranged around the axis of the stirring cylinder.

[0014] Optionally, it also includes multiple support feet, with the stirring driver mounted on the bottom surface of the stirring drum, the grouting pump mounted on the bottom surface of the stirring driver, and the multiple support feet arranged around the axis of the stirring drum on the bottom surface of the stirring drum, the bottom surface of the support feet not being higher than the bottom surface of the grouting pump.

[0015] Compared with the prior art, the filling device implemented in this utility model has the following advantages:

[0016] This utility model filling device includes a mixer for mixing fly ash and water into a uniform slurry, a grouting device for conveying the uniformly mixed slurry outwards, and an anti-clogging mechanism for reducing the risk of slurry clogging in the grouting pipe. Specifically, in the mixer, a mixing chamber inside the mixing drum is used to contain fly ash and water. The mixing driver drives the mixing rod to rotate to mix the fly ash and water, thereby obtaining a fly ash slurry. In the grouting device, an inlet pipe is connected to the mixing drum and the grouting pump to convey the uniform fly ash slurry in the mixing chamber to the grouting pump. The grouting pump then inputs the fly ash slurry into one end of the grouting pipe and outputs it from the other end of the grouting pipe for filling operations. Since the grouting pipe is relatively long, the risk of clogging is high. The anti-clogging mechanism is located in the grouting pipe and disturbs the slurry inside the grouting pipe by squeezing or vibrating, reducing the probability of sedimentation and agglomeration, thereby reducing the risk of clogging. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the filling device of this utility model.

[0018] Fig. 2 This is a schematic diagram of the filling device of this utility model with a portion cut off along a plane perpendicular to the horizontal direction.

[0019] Fig. 3 This is a schematic diagram of the filling device of this utility model with a portion cut off along a plane perpendicular to the vertical direction.

[0020] Fig. 4 This is a schematic diagram of the structure of the grouting pipe with a portion cut off in one embodiment of the present invention.

[0021] Fig. 5 This is a cross-sectional view of the rolling groove and the ball in one embodiment of the present invention.

[0022] Figure descriptions: 1. Agitator; 11. Agitator drum; 111. Agitator chamber; 12. Agitator rod; 13. Agitator driver; 14. Rotating plate; 15. Feed pipe; 16. Sun gear; 17. Planetary gear; 18. Internal gear; 19a. First agitator column; 19b. Second agitator column; 2. Grouting device; 21. Feed pipe; 22. Grouting pump; 23. Grouting pipe; 231. Rigid pipe; 2311. Rolling groove; 232. Flexible hose; 3. Anti-clogging mechanism; 31. Ball bearing; 4. Support foot. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] In the description of this utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] like Figs. 1 to 5 As shown, a filling device of this utility model includes a mixer 1, a grout injector 2, and an anti-blocking mechanism 3. The mixer 1 includes a mixing cylinder 11, a mixing rod 12, and a mixing driver 13. The mixing cylinder 11 has a mixing chamber 111 inside. The mixing rod 12 is disposed in the mixing chamber 111 and rotatably connected to the mixing cylinder 11. The mixing driver 13 is connected to the mixing rod 12 and is used to drive the mixing rod 12 to rotate. The grout injector 2 includes a grout pump 22, a material receiving pipe 21, and a grouting pipe 23. The two ends of the material receiving pipe 21 are respectively connected to the mixing cylinder 11 and the inlet of the grout pump 22. One end of the grouting pipe 23 is connected to the outlet of the grout pump 22. The anti-blocking mechanism 3 is disposed on the grouting pipe 23 and can squeeze or vibrate the grouting pipe 23.

[0027] In the above technical solution, the mixing chamber 111 inside the mixing drum 11 is used to contain fly ash and water. The mixing driver 13 drives the mixing rod 12 to rotate to mix the fly ash and water, thereby obtaining fly ash slurry. The feed pipe 15 is connected to the mixing drum 11 and the grouting pump 22 to transport the uniform fly ash slurry in the mixing chamber 111 to the grouting pump 22. The grouting pump 22 then inputs the fly ash slurry into one end of the grouting pipe 23 and outputs it from the other end of the grouting pipe 23 for filling operations. Since the grouting pipe 23 is relatively long, the risk of blockage is relatively high. The anti-blockage mechanism 3 is set in the grouting pipe 23. By squeezing or vibrating, it disturbs the slurry inside the grouting pipe 23 to reduce its chance of settling and agglomeration, thereby reducing the risk of blockage.

[0028] In some embodiments, the anti-blocking mechanism 3 can be a pneumatic vibrator, which vibrates the grouting pipe 23 to disturb the grout inside the grouting pipe 23, thereby preventing it from settling, agglomerating, and thus blocking. The pneumatic vibrator is a device that uses compressed air as a power source to generate mechanical vibration through the periodic movement of internal components. Specifically, it can be a piston-type pneumatic vibrator, a ball-type pneumatic vibrator, or a turbine-type pneumatic vibrator.

[0029] In other embodiments, the anti-clogging mechanism 3 includes a plurality of balls 31, the grouting pipe 23 includes a rigid pipe 231 and a flexible pipe 232, the rigid pipe 231 is sleeved on the outside of the flexible pipe 232, and the plurality of balls 31 are disposed between the rigid pipe 231 and the flexible pipe 232.

[0030] When the ball bearing 31 rolls between the rigid tube 231 and the flexible tube 232, it periodically squeezes the flexible tube 232, thereby breaking the agglomeration structure of the slurry and reducing adhesion and accumulation.

[0031] Furthermore, the rigid tube 231 is provided with a rolling groove 2311, which is an elongated groove, and a plurality of balls 31 are disposed in the rolling groove 2311, and the balls 31 can move along the length direction of the rolling groove 2311.

[0032] Among them, the ball 31 can roll along the rolling groove 2311 to prevent the ball 31 from accumulating between the rigid tubes 231 and the rigid tubes 231.

[0033] Specifically, the rolling groove 2311 may include an outer groove and an inner groove that are interconnected. The outer groove is located on the inner side wall of the outer tube, and the inner groove is located at the bottom of the outer groove. The width of the outer groove is smaller than the width of the inner groove. The diameter of the ball 31 is larger than the width of the outer groove and smaller than the width of the inner groove. The ball 31 is located in the inner groove and the outer groove and protrudes from the inner side wall of the outer tube. The inner groove can prevent the ball 31 from falling out.

[0034] Furthermore, when there is a gap between the rigid pipe 231 and the flexible pipe 232, it is best to provide sealing rings on both sides of the grouting pipe 23. The sealing rings are connected to one end of the rigid pipe 231 and the flexible pipe 232 to seal the gap between the rigid pipe 231 and the flexible pipe 232 and prevent grout from flowing in.

[0035] Furthermore, the rolling groove 2311 is arranged around the axis of the grouting pipe 23. Specifically, the rolling groove 2311 can be spiral or annular around the grouting pipe 23.

[0036] Compared to a straight-line rolling groove 2311, the circumferentially distributed rolling balls 31 in this type of rolling groove 2311 can form a spiral disturbance path, which enhances the axial mixing of the slurry and avoids sedimentation and accumulation in local areas due to insufficient disturbance. It is especially suitable for uniform anti-clogging of large-diameter grouting pipes 23.

[0037] Furthermore, the stirrer 1 also includes a rotating plate 14 and a feed pipe 15. The top of the stirring cylinder 11 is provided with a top hole that extends through to the stirring chamber 111. The rotating plate 14 covers the top hole and is rotatably connected to the stirring cylinder 11. The top surface of the rotating plate 14 is provided with a through feed hole. The feed hole is arranged around the axis of the rotating plate 14. The feed pipe 15 is arranged through the feed hole. The stirring rod 12 is connected to the rotating plate 14 and / or the feed pipe 15. When the stirring rod 12 rotates, the stirring rod 12 drives the rotating plate 14 and the feed pipe 15 to rotate.

[0038] The stirring rod 12 can drive the feed pipe 15 to rotate together, achieving the effect of dynamic feeding. The rotating feed pipe 15 can evenly spread the fly ash into the mixing chamber 111, avoiding concentrated accumulation. Furthermore, the feed pipe 15 can rotate in the same direction as the stirring rod 12 or in the opposite direction to the stirring rod 12.

[0039] Furthermore, the stirrer 1 also includes a sun gear 16 and a planetary gear 17, which are disposed within the stirring chamber 111. The planetary gear 17 is sleeved on the outside of the feed pipe 15 and fixedly connected to the feed pipe 15. The bottom end of the stirring rod 12 is rotatably connected to the stirring cylinder 11, and the top end of the stirring rod 12 is rotatably connected to the rotating plate 14. The sun gear 16 is sleeved on the outside of the stirring rod 12 and fixedly connected to the stirring rod 12. The cavity wall of the stirring chamber 111 is provided with a plurality of internal teeth 18 around its axis, and the planetary gear 17 is meshed with the sun gear 16 and the internal teeth 18.

[0040] The stirring driver 13 drives the stirring rod 12 to rotate, which in turn drives the sun gear 16 to rotate. The sun gear 16 drives the planetary gear 17 located between the sun gear 16 and the internal gear 18 to rotate. The planetary gear 17 and the sun gear 16 rotate in opposite directions, so that the stirring direction is opposite to the rotation direction of the feed pipe 15, thereby increasing the stirring efficiency and uniformity.

[0041] Furthermore, the stirrer 1 also includes a plurality of feed pipes 15, and the rotating plate 14 is provided with a plurality of feed holes, the feed holes and the feed pipes 15 being arranged in a one-to-one correspondence.

[0042] Among them, multiple feed pipes 15 can disperse the feeding, avoiding local agglomeration caused by excessive concentration at a single point.

[0043] Furthermore, the outer wall of the stirring rod 12 is provided with multiple sets of first stirring columns 19a at intervals along the vertical direction, and each set of first stirring columns 19a includes multiple first stirring columns 19a arranged around the axis of the stirring rod 12.

[0044] Among them, the first stirring column 19a at different heights forms a longitudinal shear surface, which enhances the convection of the upper and lower slurry layers.

[0045] Furthermore, the cavity wall of the stirring chamber 111 is provided with multiple sets of second stirring columns 19b at intervals along the vertical direction. The first stirring column 19a and the second stirring column 19b are staggered in the vertical direction. Each set of second stirring columns 19b includes multiple second stirring columns 19b arranged around the axis of the stirring cylinder 11.

[0046] The first stirring column 19a and the second stirring column 19b are arranged alternately to form a dynamic and static shear field. The relative motion generates eddies, which enhances the dispersion and stirring effect of the slurry.

[0047] Furthermore, the material extraction pipe 21 is connected to the bottom surface of the mixing drum 11 to continuously extract the bottom slurry and maintain the overall uniformity of the slurry.

[0048] Furthermore, it also includes multiple support feet 4. The stirring driver 13 is installed on the bottom surface of the stirring drum 11, and the grouting pump 22 is installed on the bottom surface of the stirring driver 13. The multiple support feet 4 are arranged around the axis of the stirring drum 11 on the bottom surface of the stirring drum 11. The bottom surface of the support feet 4 is not higher than the bottom surface of the grouting pump 22, so as to form a stable layout of low-level support and high-level equipment.

[0049] Furthermore, fixed setting and fixed connection refer to the fixed relative positional relationship of two components, including but not limited to fixing by connectors, fixing by welding, fixing by adhesive, fixing by integral molding, and fixing by snap-fit ​​connection.

[0050] Furthermore, rotatable connection and rotatable setting refer to the ability of two connected components to rotate, including but not limited to connections via bearings or clearance fits.

[0051] Furthermore, the connectors include, but are not limited to, fasteners, straps, ropes, pneumatic connectors, hydraulic connectors, flanges, Velcro, and buttons.

[0052] In summary, the present invention provides a filling device, the technical effects of which are as follows:

[0053] The filling device of this utility model includes a mixer 1 for mixing fly ash and water into a uniform slurry, a grouting device 2 for conveying the uniformly mixed slurry outward, and an anti-clogging mechanism 3 for reducing the risk of slurry clogging in the grouting pipe 23. Specifically, in the mixer 1, the mixing chamber 111 inside the mixing drum 11 is used to contain fly ash and water. The mixing driver 13 drives the mixing rod 12 to rotate to mix the fly ash and water, thereby obtaining a fly ash slurry. In the grouting device 2, the feed pipe 15 is connected to... The mixing drum 11 and the grouting pump 22 are used to transport the uniform fly ash slurry in the mixing chamber 111 to the grouting pump 22. The grouting pump 22 then inputs the fly ash slurry into one end of the grouting pipe 23 and outputs it from the other end of the grouting pipe 23 for filling operations. Since the grouting pipe 23 is relatively long, the risk of blockage is relatively high. The anti-blockage mechanism 3 is set in the grouting pipe 23. By squeezing or vibrating, the slurry inside the grouting pipe 23 is disturbed to reduce the probability of its settling and agglomeration, thereby reducing the risk of blockage.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A filling device, characterized in that, The device includes a mixer (1), a grout injector (2), and an anti-clogging mechanism (3). The mixer (1) includes a mixing drum (11), a mixing rod (12), and a mixing driver (13). The mixing drum (11) has a mixing chamber (111). The mixing rod (12) is located in the mixing chamber (111) and rotatably connected to the mixing drum (11). The mixing driver (13) is connected to the mixing rod (12) and is used to drive the mixing drum. The stirring rod (12) rotates. The grouting device (2) includes a grouting pump (22), a material taking pipe (21), and a grouting pipe (23). The two ends of the material taking pipe (21) are respectively connected to the stirring drum (11) and the inlet of the grouting pump (22). One end of the grouting pipe (23) is connected to the outlet of the grouting pump (22). The anti-blocking mechanism (3) is provided on the grouting pipe (23). The anti-blocking mechanism (3) can squeeze or vibrate the grouting pipe (23).

2. The filling device according to claim 1, characterized in that, The anti-blocking mechanism (3) includes multiple balls (31), and the grouting pipe (23) includes a rigid pipe (231) and a flexible pipe (232). The rigid pipe (231) is sleeved on the outside of the flexible pipe (232), and the multiple balls (31) are disposed between the rigid pipe (231) and the flexible pipe (232).

3. The filling device according to claim 2, characterized in that, The rigid tube (231) is provided with a rolling groove (2311), which is a long groove. A plurality of balls (31) are disposed in the rolling groove (2311), and the balls (31) can move along the length direction of the rolling groove (2311).

4. The filling device according to claim 3, characterized in that, The rolling groove (2311) is arranged around the axis of the grouting pipe (23).

5. The filling device according to claim 1, characterized in that, The stirrer (1) further includes a rotating plate (14) and a feed pipe (15). The top of the stirring cylinder (11) is provided with a top hole that extends through to the stirring chamber (111). The rotating plate (14) covers the top hole and is rotatably connected to the stirring cylinder (11). The top surface of the rotating plate (14) is provided with a through feed hole. The feed hole is arranged around the axis of the rotating plate (14). The feed pipe (15) is arranged through the feed hole. The stirring rod (12) is connected to the rotating plate (14) and / or the feed pipe (15). When the stirring rod (12) rotates, the stirring rod (12) drives the rotating plate (14) and the feed pipe (15) to rotate.

6. The filling device according to claim 5, characterized in that, The stirrer (1) further includes a sun gear (16) and a planetary gear (17). The sun gear (16) and the planetary gear (17) are disposed in the stirring chamber (111). The planetary gear (17) is sleeved on the outside of the feed pipe (15) and fixedly connected to the feed pipe (15). The bottom end of the stirring rod (12) is rotatably connected to the stirring cylinder (11). The top end of the stirring rod (12) is rotatably connected to the rotating plate (14). The sun gear (16) is sleeved on the outside of the stirring rod (12) and fixedly connected to the stirring rod (12). The cavity wall of the stirring chamber (111) is provided with a plurality of internal teeth (18) around its axis. The planetary gear (17) is meshed with the sun gear (16) and the internal teeth (18).

7. The filling device according to claim 5, characterized in that, The stirrer (1) also includes a plurality of feed pipes (15), and the rotating plate (14) is provided with a plurality of feed holes, and the feed holes and the feed pipes (15) are arranged in a one-to-one correspondence.

8. The filling device according to claim 1, characterized in that, The outer wall of the stirring rod (12) is provided with multiple sets of first stirring columns (19a) spaced apart in the vertical direction. Each set of first stirring columns (19a) includes multiple first stirring columns (19a) arranged around the axis of the stirring rod (12).

9. The filling device according to claim 8, characterized in that, The stirring chamber (111) has multiple sets of second stirring columns (19b) spaced apart along the vertical direction. The first stirring column (19a) and the second stirring column (19b) are staggered in the vertical direction. Each set of second stirring columns (19b) includes multiple second stirring columns (19b) arranged around the axis of the stirring cylinder (11).

10. The filling device according to claim 1, characterized in that, It also includes multiple support feet (4), the stirring driver (13) is installed on the bottom surface of the stirring drum (11), the grouting pump (22) is installed on the bottom surface of the stirring driver (13), the multiple support feet (4) are arranged around the axis of the stirring drum (11) on the bottom surface of the stirring drum (11), and the bottom surface of the support feet (4) is not higher than the bottom surface of the grouting pump (22).

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