Grouting material mixing device for synchronous grouting of sand shale interbed shield

Abstract

The utility model discloses a grouting material mixing device for synchronous grouting of a sand shale interbed shield, which comprises a grouting material mixing tank, a rotary stirring rod, a fixed stirring rod, a circulating pipe and a grouting circulating pump. A rotary mixing mechanism is arranged between the grouting material mixing tank and the fixing side plates and connected with the two fixing transverse plates. By arranging the rotary mixing mechanism and the driving assembly, rotary stirring is formed, grouting materials are stirred in multiple directions and multiple angles, the mixing efficiency and uniformity are greatly improved, dynamic rotary stirring and relative static fixed stirring rod participation are achieved, all areas in the mixing tank can be covered, mixing dead angles are avoided, and the mixing efficiency is improved. The slurry is circulated through the circulating pipe and the grouting circulating pump, it is further ensured that the slurry of different parts can make full contact and be mixed, and the quality of a grouting project is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting material mixing, in particular to a grouting material mixing device used for synchronous grouting of sand-mudstone interlayer shield. Background Art

[0002] In the field of shield construction, especially when facing complex geological conditions such as interbedded sand and mudstone, higher requirements are placed on synchronous grouting, which needs to meet the need for sufficient and uniform mixing of grouting materials in the interbedded sand and mudstone environment.

[0003] After searching, the Chinese patent application number CN202321717537.0 discloses a grouting material mixing device. At present, the mixing of grouting materials is mainly carried out by a mixer. Since the mixing of grouting materials requires the proportioning and addition of different raw materials, the existing method is to manually pour the raw materials into the mixing barrel after proportioning through a measuring tool, which has a high labor intensity and low efficiency for personnel. By turning on the pump to extract the grouting material, the grouting material is extracted into the interior of the raw material barrel, and then by turning the valve between the metering barrel and the raw material barrel, the grouting material flows into the metering barrel for metered addition, which makes it easy to add grouting materials for mixing, thereby reducing manual labor intensity and improving addition efficiency. The main problems of the grouting material mixing device for synchronous grouting of sandstone and mudstone interlayer shield are:

[0004] (1) In the interbedded sand and mudstone geology, due to the large differences in the physical properties of the sand and mudstone layers, the mixing uniformity of the grouting material directly affects the grouting effect and the stability of the tunnel structure. The grouting material mixing equipment adopts a conventional single stirring method, which cannot effectively cover the entire mixing space.

[0005] (2) The slurry is prone to mixing dead corners, resulting in poor mixing effect, and the lack of circulation treatment of the slurry makes it impossible to fully achieve uniform fusion of different parts of the slurry. Utility Model Content

[0006] In order to overcome the problems and defects in the prior art, the utility model provides a grouting material mixing device for synchronous grouting of sand and mudstone interlayer shields to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The grouting material mixing device for synchronous grouting of sandstone and mudstone interlayer shield includes a grouting material mixing tank, a fixed side plate is provided on one side of the grouting material mixing tank, and a rotating mixing mechanism is provided between the grouting material mixing tank and the fixed side plate; the rotating mixing mechanism includes two fixed transverse plates, and the two fixed transverse plates are respectively fixed on the top and bottom of one side of the fixed side plate, a motor is fixedly installed on the top of one of the fixed transverse plates, the output end of the motor is fixedly connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a rotating stirring rod, the inner wall of the grouting material mixing tank is fixedly connected to a fixed stirring rod, the outer side of the grouting material mixing tank is fixedly connected to a circulation pipe, one end of the circulation pipe is installed with a grouting circulation pump, the top of the grouting material mixing tank is fixedly connected to a rotating pipe, the bottom of the grouting material mixing tank is fixedly connected to a rotating grouting pipe, an electromagnetic valve is installed inside the rotating grouting pipe, and a driving component is provided at the bottom of the rotating grouting pipe.

[0009] Furthermore, the driving assembly includes a gear, which is fixed on the outside of the rotating grouting pipe. A movable tooth plate is engaged with the rear side of the gear, and one end of the movable tooth plate is fixedly connected to a movable plate.

[0010] Furthermore, a telescopic cylinder is fixedly connected to one side of the movable plate, a fixed base is fixedly provided on one side of the telescopic cylinder, and the movable tooth plate and the movable plate are both slidably connected to the inner wall of the fixed base.

[0011] Furthermore, a fixed plate is fixedly connected to one side of the inner wall of the fixed base, a connecting plate is fixedly connected to the other side of the inner wall of the fixed base, the fixed plate is fixedly connected to one side of the fixed side plate, and the connecting plate is fixedly connected to one side of one of the fixed horizontal plates.

[0012] Furthermore, the bottom of the rotating shaft passes through the fixed horizontal plate and the grouting material mixing tank and extends to the interior of the grouting material mixing tank, and the rotating shaft is rotatably connected to the fixed horizontal plate and the rotating tube.

[0013] Furthermore, the rotating pipe and the rotating grouting pipe are both rotatably connected to the fixed horizontal plate, and one end of the circulation pipe passes through the grouting material mixing tank and extends to the interior of the grouting material mixing tank.

[0014] Furthermore, a fixed cone is fixedly connected to the outer side of the rotating stirring rod, and a feeding pipe is fixedly connected to the rear side of the grouting material mixing tank.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting up a rotating mixing mechanism and a driving component, the rotating stirring rod and the fixed stirring rod form a rotating stirring, and the grouting material is stirred in multiple directions and angles, which greatly improves the mixing efficiency and uniformity. Not only dynamic rotating stirring, but also relatively static fixed stirring rods participate, which can cover all areas in the mixing tank and avoid mixing dead corners. The slurry is circulated through the circulation pipe and the grouting circulation pump, which further ensures that the slurry in different parts can fully contact and mix, strengthens the mixing effect, and ultimately effectively improves the quality of the grouting project and reduces the quality problems caused by uneven mixing of grouting materials.

[0017] 2. By setting a fixed cone on the outside of the rotating stirring rod, the rotating stirring rod can puncture the bubbles in the slurry during the stirring process, thereby improving the slurry effect. The fully and evenly mixed slurry is more suitable for complex geological conditions such as sandstone interbeds, and can fully mix the grouting materials to meet the grouting needs of different strata, ensuring the grouting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings that constitute part of the specification of this application are used to provide further understanding of the application. The illustrative embodiments of the application and their descriptions are used to explain the application and do not constitute improper limitations on the application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a rear view structural diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the grouting material mixing tank of the present utility model;

[0022] Figure 4 This is a schematic diagram of the fixed base structure of the utility model;

[0023] Figure 5 It is a front cross-sectional structural schematic diagram of the present utility model.

[0024] The accompanying drawings are marked as follows: 1. grouting material mixing tank; 2. fixed side plate; 3. fixed horizontal plate; 4. motor; 5. rotating shaft; 6. rotating stirring rod; 7. fixed stirring rod; 8. circulation pipe; 9. grouting circulation pump; 10. rotating pipe; 11. rotating grouting pipe; 12. electromagnetic valve; 13. gear; 14. movable gear plate; 15. movable plate; 16. telescopic cylinder; 17. fixed base; 18. fixed plate; 19. connecting plate; 20. fixed cone; 21. feed pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention, and should not be understood as a limitation on the present invention.

[0027] like Figure 1-5 The grouting material mixing device shown for synchronous grouting of sand and mud interlayer shield includes a grouting material mixing tank 1, a fixed side plate 2 is provided on one side of the grouting material mixing tank 1, and a rotating mixing mechanism is provided between the grouting material mixing tank 1 and the fixed side plate 2; the rotating mixing mechanism includes two fixed horizontal plates 3, and the two fixed horizontal plates 3 are respectively fixed on the top and bottom of one side of the fixed side plate 2, a motor 4 is fixedly installed on the top of one of the fixed horizontal plates 3, a rotating shaft 5 is fixedly connected to the output end of the motor 4, a rotating stirring rod 6 is fixedly connected to the outside of the rotating shaft 5, a fixed stirring rod 7 is fixedly connected to the inner wall of the grouting material mixing tank 1, a circulation pipe 8 is fixedly connected to the outside of the grouting material mixing tank 1, a grouting circulation pump 9 is installed at one end of the circulation pipe 8, a rotating pipe 10 is fixedly connected to the top of the grouting material mixing tank 1, a rotating grouting pipe 11 is fixedly connected to the bottom of the grouting material mixing tank 1, an electromagnetic valve 12 is installed inside the rotating grouting pipe 11, and a driving component is provided at the bottom of the rotating grouting pipe 11.

[0028] like Figure 1-5 As shown, the driving assembly includes a gear 13, which is fixed on the outside of the rotating grouting pipe 11, and a movable tooth plate 14 is meshed with the rear side of the gear 13, one end of the movable tooth plate 14 is fixedly connected to a movable plate 15, one side of the movable plate 15 is fixedly connected to a telescopic cylinder 16, and one side of the telescopic cylinder 16 is fixedly provided with a fixed base 17, the movable tooth plate 14 and the movable plate 15 are both slidably connected to the inner wall of the fixed base 17, one side of the inner wall of the fixed base 17 is fixedly connected to a fixed plate 18, and the other side of the inner wall of the fixed base 17 is fixedly connected to a connecting plate 19, the fixed plate 18 is fixedly connected to one side of the fixed side plate 2, and the connecting plate 19 is fixedly connected to one side of one of the fixed horizontal plates 3, so that the rotating grouting pipe 11 and the grouting material mixing tank 1 and the fixed stirring rod 7 inside it can rotate back and forth, thereby improving the mixing and stirring effect.

[0029] like Figure 1-5 As shown, the bottom of the rotating shaft 5 passes through the fixed horizontal plate 3 and the grouting material mixing tank 1 and extends to the inside of the grouting material mixing tank 1. The rotating shaft 5 is rotationally connected to the fixed horizontal plate 3 and the rotating tube 10. The rotating tube 10 and the rotating grouting pipe 11 are rotationally connected to the fixed horizontal plate 3. One end of the circulation pipe 8 passes through the grouting material mixing tank 1 and extends to the inside of the grouting material mixing tank 1, thereby improving the mixing effect and uniformity of the slurry.

[0030] like Figure 5 As shown, a fixed cone 20 is fixedly connected to the outside of the rotating stirring rod 6 to facilitate breaking the bubbles in the slurry, and a feed pipe 21 is fixedly connected to the rear side of the grouting material mixing tank 1 to facilitate the slurry to enter the grouting material mixing tank 1 through the feed pipe 21.

[0031] Working principle of the utility model: During use, the grouting material mixing device for synchronous grouting of sand and mudstone interlayer shield provided by the utility model first enters the grouting material mixing tank 1 through the feed pipe 21, and then the motor 4 drives the rotating shaft 5 to rotate, so that the rotating stirring rod 6 stirs and mixes the slurry inside, and at the same time, the telescopic cylinder 16 on one side of the inner wall of the fixed base 17 retracts and retracts back and forth, thereby driving the movable plate 15 to move back and forth, and then driving the movable tooth plate 14 to move back and forth. At the same time, due to the engagement between the movable tooth plate 14 and the gear 13, the gear 13 and the grouting material mixing tank 1 are driven to rotate, thereby causing the grouting material mixing tank 1 to rotate back and forth, so that a back and forth rotation is formed between the fixed stirring rod 7 and the rotating stirring rod 6 and the rotating stirring rod 6 rotates, thereby improving the mixing effect. At the same time, the slurry mixed in the grouting material mixing tank 1 is continuously circulated through the circulation pipe 8 by the grouting circulation pump 9 and re-enters the grouting material mixing tank 1 for mixing, further improving the slurry mixing effect.

[0032] Finally, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed in this utility model are intended to be covered by the claims of this utility model.

Claims

1. A grouting material mixing device for synchronous grouting of sandstone and mudstone interbeds in a shield tunnel, comprising a grouting material mixing tank (1), characterized in that: A fixed side plate (2) is provided on one side of the grouting material mixing tank (1), and a rotating mixing mechanism is provided between the grouting material mixing tank (1) and the fixed side plate (2); the rotating mixing mechanism comprises two fixed transverse plates (3), the two fixed transverse plates (3) being fixed to the top and bottom of one side of the fixed side plate (2), respectively; a motor (4) is fixedly mounted on the top of one of the fixed transverse plates (3), the output end of the motor (4) being fixedly connected to a rotating shaft (5), and a rotating stirring rod (6) being fixedly connected to the outer side of the rotating shaft (5). The inner wall of the grouting material mixing tank (1) is fixedly connected to a fixed stirring rod (7), the outer side of the grouting material mixing tank (1) is fixedly connected to a circulation pipe (8), one end of the circulation pipe (8) is installed with a grouting circulation pump (9), the top of the grouting material mixing tank (1) is fixedly connected to a rotating pipe (10), the bottom of the grouting material mixing tank (1) is fixedly connected to a rotating grouting pipe (11), an electromagnetic valve (12) is installed inside the rotating grouting pipe (11), and a driving component is provided at the bottom of the rotating grouting pipe (11).

2. The grouting material mixing device for synchronous grouting of sand and mudstone interbeds by shield tunneling according to claim 1 is characterized in that: The driving assembly comprises a gear (13), the gear (13) being fixed on the outside of the rotating grouting pipe (11), the rear side of the gear (13) being meshed with a movable tooth plate (14), and one end of the movable tooth plate (14) being fixedly connected to a movable plate (15).

3. The grouting material mixing device for synchronous grouting of sand-mudstone interbeds by shield tunneling according to claim 1, characterized in that: One side of the movable plate (15) is fixedly connected to a telescopic cylinder (16), and one side of the telescopic cylinder (16) is fixedly provided with a fixed base (17). The movable tooth plate (14) and the movable plate (15) are both slidably connected to the inner wall of the fixed base (17).

4. The grouting material mixing device for synchronous grouting of sand and mudstone interbeds by shield tunneling according to claim 1, characterized in that: A fixed plate (18) is fixedly connected to one side of the inner wall of the fixed base (17), and a connecting plate (19) is fixedly connected to the other side of the inner wall of the fixed base (17). The fixed plate (18) is fixedly connected to one side of the fixed side plate (2), and the connecting plate (19) is fixedly connected to one side of one of the fixed transverse plates (3).

5. The grouting material mixing device for synchronous grouting of sand-mudstone interbeds by shield tunneling according to claim 1, characterized in that: The bottom of the rotating shaft (5) passes through the fixed transverse plate (3) and the grouting material mixing tank (1) and extends into the interior of the grouting material mixing tank (1). The rotating shaft (5) is rotatably connected to the fixed transverse plate (3) and the rotating tube (10).

6. The grouting material mixing device for synchronous grouting of sand and mudstone interbeds by shield tunneling according to claim 1, characterized in that: The rotating pipe (10) and the rotating grouting pipe (11) are both rotatably connected to the fixed horizontal plate (3), and one end of the circulation pipe (8) passes through the grouting material mixing tank (1) and extends into the interior of the grouting material mixing tank (1).

7. The grouting material mixing device for synchronous grouting of sandstone and mudstone interbeds by shield tunneling according to claim 1, characterized in that: A fixed cone (20) is fixedly connected to the outer side of the rotating stirring rod (6), and a feed pipe (21) is fixedly connected to the rear side of the grouting material mixing tank (1).

Images