Mine water disaster grouting control device

Abstract

The utility model discloses a mine water disaster grouting control device which comprises a stirring box body, an inlet, an outlet and supporting legs. The bottom end of the stirring box communicates with the outlet, the top area of the left end of the stirring box communicates with the inlet, multiple sets of supporting legs are arranged at the bottom end of the stirring box, and a stirring mechanism is arranged in the stirring box and comprises a stirring assembly and a transmission assembly; at least two groups of stirring mechanisms are symmetrically arranged along the axis of the box body; the stirring assembly comprises a stirring unit extending into the box body; the transmission assembly is connected with the stirring assembly and comprises bevel gear pairs which are meshed with each other; the transmission assembly is connected with a driving assembly, and the driving assembly drives the two stirring assemblies through a bevel gear pair to achieve synchronous reverse rotation. According to the utility model, the two groups of stirring components are matched with the vertical meshing transmission of the transmission component, so that the double-shaft synchronous reverse stirring is realized; the structure effectively breaks the vortex phenomenon formed by single-shaft stirring, the slurry stirring uniformity is improved, and it is ensured that grouting materials are fully mixed.

Description

Technical Field

[0001] This utility model belongs to the field of mine grouting technology, specifically a mine water hazard grouting prevention and control device. Background Technology

[0002] Coal mine water hazards are a major safety hazard in mining operations, seriously threatening mine construction safety and production efficiency. They not only cause project delays and deteriorate the working environment, but also significantly increase investment in and operating costs for drainage facilities, and can even trigger mine flooding accidents, resulting in irreversible loss of life and property.

[0003] During mining operations, water inrush accidents caused by water accumulation in old mine shafts occur frequently. Furthermore, water hazards can easily induce weakening of the surrounding rock, secondary disasters, and water resource damage, leading to a decrease in resource recoverability and an increase in the cost per ton of coal. my country's coalfields have complex hydrogeological conditions, and a large amount of unmined coal reserves are under serious threat from water hazards. Therefore, the development of efficient water hazard prevention technologies is of urgent practical significance.

[0004] Grouting technology, as a mainstream prevention and control method, relies heavily on the performance of its core components, which directly impacts grout permeability, consolidation effect, and overall prevention and control efficiency. Existing mine water hazard grouting prevention and control devices mostly employ a single-shaft mixing structure. While this design achieves basic mixing functionality, it suffers from the following drawbacks in practical applications:

[0005] Single-shaft agitation is prone to forming unidirectional vortices, which can lead to slurry stratification or incomplete mixing in certain areas, resulting in uneven curing strength of the grouting material and reduced water-blocking effect. At the same time, a single agitator shaft requires a high-power motor drive, which consumes a lot of energy, and the agitation blind zone is difficult to eliminate, which restricts the grouting efficiency.

[0006] The aforementioned problems directly lead to a gap between the actual effectiveness of the grouting prevention device and its theoretical design, making it difficult to meet the high-intensity grouting requirements under complex hydrogeological conditions. Utility Model Content

[0007] The main purpose of this utility model is to provide a grouting prevention and control device for mine water hazards that avoids eddy currents during stirring and thus improves stirring efficiency.

[0008] The grouting and prevention device for mine water hazards provided by this utility model includes a mixing tank, an inlet, an outlet, and support legs. The bottom end of the mixing tank is connected to the outlet, and the top area on the left end is connected to the inlet. Multiple sets of support legs are provided at the bottom end. A mixing mechanism is provided inside the mixing tank, which includes a mixing component and a transmission component. There are at least two sets of mixing mechanisms, symmetrically arranged along the axis of the tank. The mixing component includes a mixing unit extending into the tank. The transmission component is connected to the mixing component, and the transmission component includes a meshing bevel gear pair. The transmission component is connected to a drive component, which drives the two sets of mixing components to achieve synchronous counter-rotation through the bevel gear pair.

[0009] In one embodiment of the above-mentioned device, the stirring assembly includes a rotating shaft and rotating blades uniformly disposed thereon, the top of the rotating shaft is rotatably connected to the top bearing of the stirring tank, and the rotating blades are streamlined.

[0010] In one embodiment of the above-mentioned device, the transmission assembly includes a fixed seat, a first shaft, a first bevel gear, and a second bevel gear; the fixed seat is fixedly connected to the top of the mixing tank; a first shaft is rotatably connected between a pair of fixed seats via bearings, and a vertical second bevel gear is fixedly connected to the first shaft; a horizontal first bevel gear is fixedly connected to the top of the mixing assembly; the first bevel gear meshes with the corresponding second bevel gear.

[0011] In one embodiment of the above-described device, the fixing base is fixedly connected to the top of the mixing tank body by bolts.

[0012] In one embodiment of the above-mentioned device, the driving mechanism includes a rotary motor, a fixed frame, a second shaft, a third bevel gear, and a driving bevel gear; the bottom end of the fixed frame is connected to the center of the top end of the mixing tank; the top end of the vertical second shaft is rotatably connected to the fixed frame; the rotary motor is mounted on the top end of the fixed frame, and the output end of the rotary motor is connected to the top end of the second shaft; the bottom end of the second shaft is fastened to the corresponding driving bevel gear; the inner side of each transmission component is fixed with a third bevel gear, and the driving bevel gear meshes with the corresponding third bevel gear.

[0013] In one embodiment of the above-described device, the rotating motor is a servo motor.

[0014] In one embodiment of the above-mentioned device, a controller is vertically mounted on the side of the mixing tank and is electrically connected to the rotating motor.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By using two sets of symmetrically arranged rotating shafts and evenly distributed rotating blades, combined with the vertical meshing transmission of the first and second bevel gears, dual-shaft synchronous reverse mixing is achieved; this structure effectively breaks the vortex phenomenon formed by single-shaft mixing, significantly improves the uniformity of slurry mixing, and ensures that the grouting material is fully mixed;

[0017] 2. A servo motor drives a bevel gear via a second shaft, which in turn drives the first shaft to rotate via a third bevel gear. Power distribution is achieved through the meshing of the second and first bevel gears. This transmission structure enables a single motor to drive two stirring shafts to operate synchronously, ensuring transmission stability and consistent power output. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an isometric structure according to an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A schematic diagram of the main structure.

[0020] Figure 3 for Figure 1 A side view structural diagram.

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the rotating plate and the rotating shaft.

[0022] In the diagram: 1. Mixing tank body; 2. Inlet; 3. Outlet; 4. Support leg; 5. Rotating shaft; 6. Rotating plate; 7. Fixed base; 8. First shaft; 9. First bevel gear; 10. Second bevel gear; 11. Rotating motor; 12. Fixed frame; 13. Second shaft; 14. Third bevel gear; 15. Drive bevel gear; 16. Bolt; 17. Controller. Detailed Implementation

[0023] The relevant technical solutions will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Combination Figure 1 , Figure 2 and Figure 3 As can be seen, the grouting device for preventing and controlling water hazards in mines disclosed in this embodiment includes a mixing tank 1, an inlet 2, an outlet 3, and support legs 4.

[0025] The bottom of the mixing tank 1 is connected to the outlet 3, and the top area on the left is connected to the inlet 2. Multiple sets of support legs 4 are provided at the bottom, and a mixing mechanism is provided inside the mixing tank 1.

[0026] The stirring mechanism includes a rotating shaft 5, a rotating plate 6, a fixed base 7, a first shaft 8, a first bevel gear 9, and a second bevel gear 10.

[0027] Two sets of rotating shafts 5 are symmetrically arranged at the top of the mixing tank 1, and the top areas of the rotating shafts are rotatably connected to the top areas of the mixing tank 1 by bearings.

[0028] like Figure 4 As shown, the bottom area of ​​the rotating shaft 5 is located inside the mixing tank, and multiple sets of rotating blades 6 are evenly arranged on the surface of the bottom area of ​​the rotating shaft. The rotating blades are designed to be streamlined.

[0029] Two pairs of fixed seats 7 are symmetrically arranged on both sides of the two rotating shafts 5 at the top of the mixing tank body 1. The fixed seats are fixedly connected to the top of the mixing tank body by bolts 16.

[0030] A first shaft 8 is rotatably connected between a pair of fixed seats via an isometric connection. A vertical second bevel gear 10 is fixedly connected to the first shaft. A horizontal first bevel gear 9 is fixedly connected to the top of the rotating shaft. The first bevel gear meshes with the corresponding second bevel gear.

[0031] Because the two pairs of fixed seats are symmetrically arranged, when the two first shafts 8 rotate in the same direction, the two rotating shafts 5 rotate in opposite directions.

[0032] A drive mechanism is provided on the inner side of both first shafts 8.

[0033] like Figure 2 As shown, the drive mechanism includes a rotary motor 11, a fixed frame 12, a second shaft 13, a third bevel gear 14, and a drive bevel gear 15.

[0034] The bottom end of the fixing frame 12 is connected to the center of the top of the mixing tank body 1.

[0035] A vertical second shaft 13 is rotatably connected to a fixed frame 12 at its top end; a rotating motor 11 is mounted on the top end of the fixed frame, and the output end of the rotating motor is connected to the top end of the second shaft 13. The bottom end of the second shaft is fastened to the corresponding drive bevel gear 15.

[0036] The inner sides of both first shafts 8 are fixedly connected with third bevel gears 14, and drive bevel gears 15 mesh with the corresponding third bevel gears.

[0037] The rotating motor 11 is a servo motor. A controller 17 is vertically located on the side of the mixing tank 1 and is electrically connected to the rotating motor 11.

[0038] The drive mechanism of this device starts the rotating motor 11 through the controller 17. The rotating motor 11 drives the second shaft 13 and the drive bevel gear 15 to rotate. The drive bevel gear 15 drives the corresponding third bevel gear 14 to rotate, thereby causing the third bevel gear 14 to drive the corresponding first shaft 8 to rotate.

[0039] The stirring mechanism of this device drives the corresponding first shaft 8 to rotate through the drive mechanism. Then, the first shaft 8 drives the corresponding two sets of second bevel gears 10 to rotate, and the two sets of second bevel gears 10 drive the corresponding first bevel gears 9 to rotate. This makes the two sets of rotating shafts 5 and rotating plates 6 rotate synchronously in opposite directions, so as to efficiently stir the slurry in the stirring tank 1 without generating eddy currents and achieve good stirring effect.

[0040] The advantages of using this device are:

[0041] Existing grout mixing mechanisms are single-shaft mixing mechanisms, which result in poor mixing effects and often lead to reduced grouting efficiency due to uneven mixing, making them inconvenient to use. This device adopts dual-shaft reverse mixing, which enhances the efficiency and effectiveness of the grouting prevention device and makes it highly practical.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mine water disaster grouting prevention device, comprising a stirring box, an inlet, an outlet and a leg; the bottom end of the stirring box is communicated with the outlet, the left end top area is communicated with the inlet, and the bottom end is provided with a plurality of groups of legs, characterized in that: a stirring mechanism is arranged in the stirring box, the stirring mechanism comprises a stirring assembly and a transmission assembly; the stirring mechanism is at least two groups, which are symmetrically arranged along the axis of the box; the stirring assembly comprises a stirring unit extending into the box; the transmission assembly is connected with the stirring assembly, and the transmission assembly comprises a bevel gear pair; the transmission assembly is connected with a driving assembly, the driving assembly drives two groups of stirring assemblies to realize synchronous reverse rotation through the bevel gear pair.

2. The mine water disaster grouting prevention device of claim 1, wherein: the stirring assembly comprises a rotating shaft and rotating blades uniformly arranged thereon, the top of the rotating shaft is rotatably connected with the top bearing of the stirring box, and the rotating blades are streamline.

3. The mine water disaster grouting prevention device of claim 1, wherein: the transmission assembly comprises a fixed seat, a first shaft, a first bevel gear and a second bevel gear; the fixed seat is fixedly connected with the top end of the stirring box; a pair of fixed seats are rotatably connected with the first shaft through bearings, and the first shaft is fixedly connected with the vertical second bevel gear; the top end of the stirring assembly is fixedly connected with the horizontal first bevel gear; the first bevel gear is meshed with the corresponding second bevel gear.

4. The mine water disaster grouting prevention device of claim 3, characterized in that: the fixed seat is fixedly connected with the top end of the stirring box through bolts.

5. The mine water disaster grouting prevention device of claim 1, wherein: the driving assembly comprises a rotating motor, a fixed frame, a second shaft, a third bevel gear and a driving bevel gear; the bottom end of the fixed frame is connected with the center of the top end of the stirring box; the vertical second shaft is rotatably connected with the fixed frame at the top end; the rotating motor is installed at the top end of the fixed frame, and the output end of the rotating motor is connected with the top end of the second shaft; the bottom end of the second shaft is tightly connected with the corresponding driving bevel gear; the inner side of the transmission assembly is fixedly provided with the third bevel gear, and the driving bevel gear is meshed with the corresponding third bevel gear.

6. The mine water disaster grouting prevention device of claim 5, wherein: the rotating motor is a servo motor.

7. The mine water disaster grouting prevention device of claim 5, wherein: a controller is vertically arranged on the side of the stirring box and is electrically connected with the rotating motor.

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