Grouting and filling device for shallow coal seam

Abstract

The present application relates to grouting filling device technical field, specifically disclose a kind of shallow coal seam grouting filling device, including base, two support frames are fixed symmetrically on the upper side of base front end left and right, the side of two support frames opposite each other is vertically provided with side edge rectangular plate, two first advance oil cylinders are fixed symmetrically on the upper side of base rear end left and right, the telescopic end of two first advance oil cylinders is respectively fixedly connected with the side of two side edge rectangular plates, vertically provided with intermediate rectangular plate between two side edge rectangular plates, two support frames are all provided with top advance mechanism and bottom advance mechanism of pushing intermediate rectangular plate, rear end advance mechanism is provided in base rear end and is butt-jointed with two bottom advance mechanism.The present application can be quickly formed when slurry filling operation, realize the close filling with goaf, and flexible multiple filling effect can also be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grouting filling device, in particular to a shallow coal seam grouting filling device. BACKGROUND

[0002] With the development of coal mining conditions and coal mine related technologies, in order to meet the needs of coal mine production, coal mine filling mining technology has been further developed. The goaf will be produced in the shallow coal seam mining, which will cause the ground subsidence area, and the house cracking, road damage and farmland destruction, and a large amount of coal gangue and fly ash will be produced in the process of coal mining. The shallow coal seam grouting filling green mining technology can not only effectively dispose solid waste and reduce the environmental damage caused by traditional coal mining, but also realize the secondary utilization of waste to the goaf filling, which is of great significance to promote the ecological civilization construction.

[0003] The shallow coal seam grouting filling technology is to pump the mixed slurry of coal gangue and fly ash into the goaf for filling. However, the existing device only achieves simple enclosure and grouting during filling operation, which has the problems of poor slurry forming effect, ineffective and close filling with the goaf, low solidification efficiency, and single filling effect, and cannot realize flexible and multiple filling effects.

[0004] Therefore, in order to solve such problems, we propose a shallow coal seam grouting filling device. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art and provide a shallow coal seam grouting filling device.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A shallow coal seam grouting filling device, comprising a base, two support frames are fixed on the upper side of the front end of the base in left-right symmetry, a side edge rectangular plate is vertically arranged on the side away from each other of the two support frames, two first pushing oil cylinders are fixed on the upper side of the rear end of the base in left-right symmetry, the telescopic ends of the two first pushing oil cylinders are respectively fixedly connected with the side edges of the two side edge rectangular plates, a middle rectangular plate is vertically arranged between the two side edge rectangular plates, a top pushing mechanism and a bottom pushing mechanism for pushing the middle rectangular plate are arranged on the two support frames, and a rear end pushing mechanism is arranged at the rear end of the base and is in abutment with the two bottom pushing mechanisms.

[0008] The side of the intermediate rectangular plate away from the support frame is matched with a vibrating plate of the same shape, the vibrating plate is connected to the front and back of the intermediate rectangular plate in an extension and contraction mode and is matched with a vibrating mechanism, a connecting cylinder is fixed to the side of the intermediate rectangular plate close to the support frame, the vibrating plate and the intermediate rectangular plate are both provided with a circular hole aligned with the connecting cylinder, a slurry conveying connector is connected to the side of the connecting cylinder, and a quick-setting agent mixing mechanism and a plugging mechanism are arranged on the connecting cylinder.

[0009] Preferably, the two support frames are both horizontally fixed with two light poles on the opposite sides of the two side rectangular plates, and the sides of the side rectangular plates are slidingly matched with the corresponding two light poles.

[0010] Preferably, the top pushing mechanism comprises a top pushing oil cylinder horizontally fixed to the top of the support frame in a front and back mode, and the extension and contraction end of the top pushing oil cylinder is rotationally connected to the side of the intermediate rectangular plate.

[0011] Preferably, the bottom pushing mechanism comprises a bottom pushing oil cylinder horizontally arranged on the bottom of the support frame in a front and back mode, the extension and contraction end of the bottom pushing oil cylinder is rotationally connected to the side of the intermediate rectangular plate, the rear end of the bottom pushing oil cylinder is rotationally connected with a sliding block, the lower ends of the support frame are symmetrically fixed with two slide rails slidingly matched with the two sides of the sliding block, the sliding block and the bottom pushing oil cylinder are both located on the lower side between the corresponding two slide rails, and the gap between the two slide rails is greater than the diameter of the bottom pushing oil cylinder.

[0012] Preferably, the rear end pushing mechanism comprises two second pushing oil cylinders symmetrically fixed on the upper side of the rear end of the base, the extension and contraction ends of the two second pushing oil cylinders are respectively aligned with the rear sides of the two sliding blocks and are fixedly connected with the sliding blocks.

[0013] Preferably, the vibrating mechanism comprises a vibrating motor fixedly connected to the side of the middle part of the vibrating plate, the intermediate rectangular plate is provided with a rectangular hole corresponding to the vibrating motor, the vibrating motor passes through the rectangular hole and is connected to the intermediate rectangular plate through a plurality of extension and contraction columns, and the intermediate rectangular plate and the vibrating plate are fixedly connected through a plurality of springs.

[0014] Preferably, the quick-setting agent mixing mechanism comprises a storage barrel fixedly connected to the side of the intermediate rectangular plate, the storage barrel is located above the connecting cylinder, the lower end of the storage barrel is funnel-shaped and horizontally fixed with a material conveying pipe, the material conveying pipe is in communication with the lower end of the storage barrel, a spiral blade is arranged in the material conveying pipe, a motor is fixedly connected to one end of the material conveying pipe in a coaxial fixed connection mode with the spiral blade, the material conveying pipe is in communication with the connecting cylinder, and the communication position is located between the intermediate rectangular plate and the slurry conveying connector.

[0015] Preferably, the plugging mechanism comprises an electric push rod fixedly connected to one end of the connecting cylinder, the electric push rod is coaxial with the connecting cylinder, the extension and contraction end of the electric push rod extends into the connecting cylinder and is coaxially fixed with a plugging sleeve, the sleeve is slidingly matched with the connecting cylinder, and the rear end of the connecting cylinder is provided with a cavity matched with the sleeve.

[0016] Preferably, the top of each of the two side rectangular plates is provided with a side top plate, which is detachably connected to the top of the side rectangular plate.

[0017] Preferably, the top of the middle rectangular plate is provided with a middle top plate, which is detachably connected to the top of the middle rectangular plate and abuts against the sides of the two side top plates at both ends.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1: In the present application, the side rectangular plate and the middle rectangular plate are provided, and both the side rectangular plate and the middle rectangular plate can move forward and backward. The middle rectangular plate and the two side rectangular plates can enclose a grouting space. The middle rectangular plate is provided with a connecting cylinder, a corresponding grout delivery connector and a material conveying pipe for conveying the accelerator. The grouting space can be filled with grout mixed with the accelerator. The vibration plate and the corresponding vibration mechanism are provided. The vibration plate can vibrate the grout during grouting, which can effectively remove the air in the grout and mix the accelerator with the grout, thereby accelerating the solidification speed of the grout, effectively improving the speed of the grout changing into a block, and having high work efficiency. Through pushing operation, the generated support block can be effectively and closely attached to the upper and lower goaf, achieving good filling effect.

[0020] 2: In the present application, the middle top plate and the side top plate are provided, and the middle top plate and the side top plate are detachably fixedly connected to the top of the middle rectangular plate and the side rectangular plate, respectively. The distance between the middle rectangular plate and the side rectangular plate and the top of the goaf can be effectively filled, achieving flexible setting, effectively reducing the leakage of grout during filling, and effectively ensuring that the formed block can be closely attached to the upper and lower goaf.

[0021] 3: In the present application, the two top pushing oil cylinders and the two bottom pushing oil cylinders are provided, and the corresponding rear end pushing mechanism is provided, so as to realize the rotation operation of the middle rectangular plate and the corresponding vibration plate. The solid filling material can be continuously pushed and squeezed, the solid filling material can be rammed, and the effect of solid filling operation is achieved, which has high flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a first axonometric view of a shallow coal seam grouting and filling device proposed in the present application;

[0023] Figure 2 It is a second axonometric view of a shallow coal seam grouting and filling device proposed in the present application;

[0024] Figure 3 It is a sectional view of a middle rectangular plate and a vibration plate of a shallow coal seam grouting and filling device proposed in the present application;

[0025] Figure 4 Structure diagram of the back of the vibration plate of the shallow coal seam grouting filling device according to the present application;

[0026] Figure 5 Structure diagram of several springs of the shallow coal seam grouting filling device according to the present application;

[0027] Figure 6 Structure diagram of the internal structure of the connecting cylinder and the material conveying pipe of the shallow coal seam grouting filling device according to the present application;

[0028] Figure 7 Working principle diagram of the rotation of the middle rectangular plate of the shallow coal seam grouting filling device according to the present application.

[0029] In the figure: 1, base; 2, support frame; 3, middle rectangular plate; 4, side edge rectangular plate; 5, top pushing oil cylinder; 6, bottom pushing oil cylinder; 7, first pushing oil cylinder; 8, connecting cylinder; 9, slurry conveying joint; 10, sliding block; 11, sliding rail; 12, second pushing oil cylinder; 13, vibration plate; 14, vibration motor; 15, telescopic column; 16, spring; 17, storage barrel; 18, material conveying pipe; 19, electric push rod; 20, sleeve; 21, polished rod; 22, side edge top plate; 23, middle top plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0031] REFERENCE Figures 1-7A shallow coal seam grouting and filling device includes a base 1, which provides stable support for components mounted on it. The base 1 moves synchronously with the coal mining equipment; that is, during the process of mining coal and continuously generating goaf areas, the base 1 is located behind the mining equipment, and the components on the base 1 continuously fill the goaf areas. Two support frames 2 are symmetrically fixed to the upper front side of the base 1, both close to the edge of the base 1. A rectangular side plate 4 is vertically provided on the opposite side of each support frame 2. Two first propulsion cylinders 7 are symmetrically fixed to the upper rear side of the base 1. The telescopic ends of the two first propulsion cylinders 7 are respectively fixedly connected to the sides of the two rectangular side plates 4, and the two first propulsion cylinders 7 are used to control the forward and backward movement of the corresponding rectangular side plates 4. A middle rectangular plate 3 is vertically arranged between the two side rectangular plates 4. Both support frames 2 are equipped with a top pushing mechanism and a bottom pushing mechanism to push the middle rectangular plate 3. The rear end of the base 1 is equipped with a rear pushing mechanism that connects with the two bottom pushing mechanisms. The middle rectangular plate 3 can also move back and forth. The middle rectangular plate 3 and the two side rectangular plates 4 can enclose a grouting space, which is cubic in shape.

[0032] A vibrating plate 13 of the same shape is matched to the side of the middle rectangular plate 3 away from the supporting frame 2. The vibrating plate 13 is telescopically connected to the middle rectangular plate 3 and matched with a vibration mechanism, and the vibrating plate 13 can vibrate. A connecting cylinder 8 is fixed to the side of the middle rectangular plate 3 near the supporting frame 2. Both the vibrating plate 13 and the middle rectangular plate 3 are provided with round holes aligned with the connecting cylinder 8. A slurry conveying joint 9 is connected to the side of the connecting cylinder 8. The slurry conveying joint 9 can be connected to an existing slurry conveying pipeline. The pipeline is detachable. The slurry conveyed by the pipeline is a mixed slurry, which can be a concrete slurry mixed with fly ash, coal gangue and other materials. Therefore, it can effectively treat fly ash and coal gangue and achieve the effect of green mining. The connecting cylinder 8 is equipped with a quick-setting agent mixing mechanism and a sealing mechanism. The quick-setting agent mixing mechanism is used to mix in quick-setting agent to accelerate the solidification speed of the slurry. The quick-setting agent is in powder form and cannot be added during the mixing of the mixed materials, because the quick-setting agent absorbs water in a short period of time, which will affect the setting time and reduce the concrete strength. Before use, a trial mix design test should be conducted on the concrete to be used in the project, and the appropriate dosage should be selected before large-scale use.

[0033] As a technical optimization of the present invention, two light rods 21 are horizontally fixed on the sides of the two supporting frames 2 and the two side rectangular plates 4 respectively. The side of the side rectangular plate 4 and the corresponding two light rods 21 are slidably matched. The two light rods 21 play a stabilizing and restricting role on the movement of the side rectangular plate 4.

[0034] As a technical optimization scheme of the present application, the top pushing mechanism comprises a top pushing oil cylinder 5 fixed horizontally in front and back of the top of the support frame 2, and the telescopic end of the top pushing oil cylinder 5 is rotatably connected to the side edge of the middle rectangular plate 3, and the top pushing oil cylinder 5 is used to drive the middle rectangular plate 3 to move.

[0035] As a technical optimization scheme of the present application, the bottom pushing mechanism comprises a bottom pushing oil cylinder 6 arranged horizontally in front and back of the bottom of the support frame 2, and the telescopic end of the bottom pushing oil cylinder 6 is rotatably connected to the side edge of the middle rectangular plate 3. The front and back movement of the middle rectangular plate 3 requires the synchronous telescopic movement of the two top pushing oil cylinders 5 and the two bottom pushing oil cylinders 6. The rear end of the bottom pushing oil cylinder 6 is rotatably connected with a sliding block 10, the lower end of the support frame 2 is symmetrically fixed with two slide rails 11 which are slidably matched with the two sides of the sliding block 10, and the sliding block 10 and the bottom pushing oil cylinder 6 are located on the lower side between the corresponding two slide rails 11, and the gap of the two slide rails 11 is greater than the diameter of the bottom pushing oil cylinder 6.

[0036] As a technical optimization scheme of the present application, the rear end pushing mechanism comprises two second pushing oil cylinders 12 fixed symmetrically on the upper side of the rear end of the base 1, the telescopic ends of the two second pushing oil cylinders 12 are respectively aligned with the rear side of the two sliding blocks 10 and fixedly connected with the sliding blocks 10, and the second pushing oil cylinders 12 can drive the sliding blocks 10 to move, thereby driving the bottom pushing oil cylinders 6 to move.

[0037] As a technical optimization scheme of the present application, the vibration mechanism comprises a vibration motor 14 fixedly connected with the middle side edge of the vibration plate 13, i.e. the vibration motor 14 is arranged in a rectangular shell, and the rectangular shell is fixedly connected with the vibration plate 13. The middle rectangular plate 3 is provided with a rectangular hole corresponding to the vibration motor 14, the rectangular hole corresponds to the rectangular shell, the vibration motor 14 passes through the rectangular hole and is connected with the middle rectangular plate 3 through a plurality of telescopic columns 15, i.e. one end of the plurality of telescopic columns 15 is fixedly connected with the rectangular shell, and the other end is fixedly connected with the middle rectangular plate 3, and the plurality of telescopic columns 15 are used to stably support the vibration motor 14. The middle rectangular plate 3 and the vibration plate 13 are fixedly connected through a plurality of springs 16, and the plurality of springs 16 enable the vibration motor 14 to effectively vibrate the vibration plate 13.

[0038] As a technical optimization scheme of the present application, the accelerator mixing mechanism comprises a storage barrel 17 fixedly connected with the side edge of the intermediate rectangular plate 3, which is used for storing the powder-like accelerator, and is provided with an injection inlet for supplementing the accelerator at any time. The storage barrel 17 is located above the connecting cylinder 8, and the lower end of the storage barrel 17 is funnel-shaped and horizontally fixed with a feeding pipe 18 in communication with the lower end of the storage barrel 17. The feeding pipe 18 is internally matched with a spiral blade, and one end of the feeding pipe 18 is fixedly connected with a motor coaxially fixed with the spiral blade. The motor can control the accurate rotation of the spiral blade, thereby accurately adding the appropriate amount of accelerator. The feeding pipe 18 communicates with the connecting cylinder 8, and the communication position is located between the intermediate rectangular plate 3 and the slurry conveying joint 9. The added accelerator in the connecting cylinder 8 can be effectively mixed with the slurry injected through the slurry conveying joint 9.

[0039] As a technical optimization scheme of the present application, the plugging mechanism comprises an electric push rod 19 fixedly connected with one end of the connecting cylinder 8, which is coaxial with the connecting cylinder 8. The telescopic end of the electric push rod 19 extends into the connecting cylinder 8 and is coaxially fixed with a sleeve 20 for plugging. The sleeve 20 is slidingly matched with the connecting cylinder 8, and the rear end of the connecting cylinder 8 is provided with a cavity matched with the sleeve 20. The electric push rod 19 can control the movement of the sleeve 20. When the sleeve 20 moves into the cavity at the rear end of the connecting cylinder 8, the slurry conveying joint 9 and the feeding pipe 18 are both in communication with the connecting cylinder 8. When the sleeve 20 moves to the front end position of the connecting cylinder 8, the sleeve 20 can plug the slurry conveying joint 9 and the feeding pipe 18 from the connecting cylinder 8, and the sleeve 20 can also plug the vibrating plate 13 and the circular hole of the intermediate rectangular plate 3 aligned with the connecting cylinder 8 at the front end of the sleeve 20.

[0040] As a technical optimization scheme of the present application, the top of each of the two side edge rectangular plates 4 is provided with a side top plate 22, which is detachably connected with the top of the side edge rectangular plate 4. The side top plate 22 and the top of the side edge rectangular plate 4 can be fixed by bolts or can be fixed by sliding clamping. The side top plate 22 serves to increase the height of the side edge rectangular plate 4. The height specification of the side top plate 22 can be set according to requirements, and the side top plate 22 can effectively fill the distance between the side edge rectangular plate 4 and the top of the goaf.

[0041] As a technical optimization scheme of the present application, the top of the intermediate rectangular plate 3 is provided with an intermediate top plate 23, which is detachably connected with the top of the intermediate rectangular plate 3. The intermediate top plate 23 and the top of the intermediate rectangular plate 3 can be fixed by bolts or can be fixed by sliding clamping. The two ends of the intermediate top plate 23 are abuttingly matched with the side edges of the two side top plates 22, and the two ends of the intermediate top plate 23 can slide along the side edges of the two side top plates 22. The intermediate top plate 23 serves to increase the height of the intermediate rectangular plate 3. The height specification of the intermediate top plate 23 can be set according to requirements, and the intermediate top plate 23 can effectively fill the distance between the intermediate rectangular plate 3 and the top of the goaf.

[0042] The application is applied to filling of a coal mining goaf in use, two first pushing oil cylinders 7 are used to control corresponding side edge rectangular plates 4 to move forward, so that the middle rectangular plate 3 and the two side edge rectangular plates 4 can form a grouting space, the middle rectangular plate 3 and the two side edge rectangular plates 4 form three sides, and the other side can be the wall surface of the goaf. Then the middle top plate 23 and the two side edge top plates 22 are fixedly installed. Then the slurry conveying joint 9 is connected with an existing slurry conveying pipeline, the pipeline conveys the slurry mixed by fly ash, coal gangue and other materials, in the conveying process, the spiral blade inside the conveying pipe 18 rotates by motor control and accurately adds the accelerator. After the slurry is filled into the enclosed space and reaches a certain height, the grouting can be stopped, the electric push rod 19 controls the sleeve 20 to move to the front end position of the connecting cylinder 8, blocks the slurry conveying joint 9 and the connecting cylinder 8, and the sleeve 20 blocks the vibrating plate 13 and the middle rectangular plate 3 and the connecting cylinder 8 aligned with the round hole at the front end. At this time, the two top pushing oil cylinders 5 and the two bottom pushing oil cylinders 6 synchronously push the middle rectangular plate 3 and drive the vibrating plate 13 to push and extrude the slurry, along with the pushing and extruding of the vibrating plate 13, the grouting space becomes smaller, the slurry and the height rise, and finally completely fill the space inside and completely contact the bottom and the top of the space, effectively filling the goaf. At the same time, in the process of pushing and extruding of the vibrating plate 13, the vibrating motor 14 starts, the vibrating motor 14 starts and vibrates the vibrating plate 13, so that the vibrating plate 13 vibrates the slurry, and the vibration time is set, the slurry vibration can effectively remove the air in the slurry, and the accelerator is mixed with the slurry, so as to accelerate the solidification speed of the slurry, effectively improve the speed of the slurry into the block, have higher work efficiency, and the generated supporting block can be effectively and closely attached to the goaf up and down, and good filling effect is achieved.

[0043] And after the filling slurry is solidified into a block, the vibrating motor 14 can be started again and vibrate the vibrating plate 13, the vibration can be effectively transmitted, so that the side edge rectangular plate 4 and the vibrating plate 13 and the corresponding middle top plate 23 and the two side edge top plates 22 are quickly and effectively separated from the block, then the side edge rectangular plate 4 and the middle rectangular plate 3 can be retracted for slurry filling operation again.

[0044] Meanwhile, the device can also carry out solid filling operation, and has high flexibility. Compared with liquid filling of slurry, solid filling needs to deliver solid filling fragments composed of fly ash, coal gangue and other materials to the goaf. When the solid filling is carried out, two second pushing oil cylinders 12 can be started to synchronously push the corresponding sliding blocks 10 to move, and then push two bottom pushing oil cylinders 6 to move, at this time, the top pushing oil cylinder 5 is fixed, at this time, two bottom pushing oil cylinders 6 can be started and push the lower end of the middle rectangular plate 3, so that the middle rectangular plate 3 rotates around the upper end as the axis, two bottom pushing oil cylinders 6 also rotate, the rotation of the middle rectangular plate 3 and the corresponding vibration plate 13 can push the solid filling fragments at the bottom to the top of the goaf, and the continuous pushing can realize the ramming operation of the solid filling fragments. Since the sliding block 10 and the bottom pushing oil cylinder 6 are located on the lower side between the corresponding two slide rails 11, the falling solid filling fragments will not affect the sliding block 10 and the bottom pushing oil cylinder 6.

[0045] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A shallow seam grouting and filling device comprising a base (1), characterized in that, The bottom base (1) is vertically provided with two support frames (2) on the upper side of the front end, and the opposite sides of the two support frames (2) are vertically provided with side rectangular plates (4), the upper side of the rear end of the bottom base (1) is vertically provided with two first pushing oil cylinders (7), the telescopic ends of the two first pushing oil cylinders (7) are fixedly connected with the side edges of the two side rectangular plates (4), and the middle rectangular plate (3) is vertically arranged between the two side rectangular plates (4). The side, away from the support frame (2), of the middle rectangular plate (3) is matched with an equal-shaped vibration plate (13), the vibration plate (13) is telescopically connected with the front and back of the middle rectangular plate (3) and is matched with a vibration mechanism, the side, close to the support frame (2), of the middle rectangular plate (3) is fixedly connected with a connecting cylinder (8), the middle rectangular plate (3) and the vibration plate (13) are both provided with a circular hole aligned with the connecting cylinder (8), the side of the connecting cylinder (8) is connected with a slurry conveying joint (9), and the connecting cylinder (8) is provided with a quick-setting agent mixing mechanism and a plugging mechanism. The top pushing mechanism comprises a top pushing oil cylinder (5) fixedly arranged on the top of the support frame (2) and horizontally arranged in front and back directions. The bottom pushing mechanism comprises a bottom pushing oil cylinder (6) horizontally arranged on the bottom of the support frame (2) and arranged in front and back directions, the telescopic end of the bottom pushing oil cylinder (6) is rotatably connected with the side edge of the middle rectangular plate (3), the rear end of the bottom pushing oil cylinder (6) is rotatably connected with a sliding block (10), the lower side of the sliding block (10) and the bottom pushing oil cylinder (6) are located between the corresponding two sliding rails (11), and the gap between the two sliding rails (11) is greater than the diameter of the bottom pushing oil cylinder (6).

2. The shallow seam grouting and filling device according to claim 1, characterized in that, The opposite sides of the two support frames (2) and the two side rectangular plates (4) are both transversely fixedly provided with two light poles (21), and the side of the side rectangular plate (4) is slidingly matched with the corresponding two light poles (21).

3. The shallow seam grouting and filling device according to claim 1, characterized in that, The rear end pushing mechanism comprises two second pushing oil cylinders (12) symmetrically fixedly arranged on the upper side of the rear end of the bottom base (1), the telescopic ends of the two second pushing oil cylinders (12) are respectively aligned with the rear sides of the two sliding blocks (10) and are fixedly connected with the sliding blocks (10).

4. The shallow seam grouting and filling device according to claim 1, characterized in that, The vibration mechanism comprises a vibration motor (14) fixedly connected with the middle side of the vibration plate (13), the middle rectangular plate (3) is provided with a rectangular hole corresponding to the vibration motor (14), the vibration motor (14) passes through the rectangular hole and is connected with the middle rectangular plate (3) through a plurality of telescopic columns (15), and the middle rectangular plate (3) and the vibration plate (13) are fixedly connected through a plurality of springs (16).

5. The shallow seam grouting and filling device according to claim 1, characterized in that, The quick-setting agent mixing mechanism comprises a storage barrel (17) fixedly connected with the side edge of the middle rectangular plate (3), the storage barrel (17) is located above the connecting cylinder (8), the lower end of the storage barrel (17) is funnel-shaped and horizontally fixed with a feeding pipe (18), the feeding pipe (18) is in communication with the lower end of the storage barrel (17), helical blades are matched arranged in the feeding pipe (18), one end of the feeding pipe (18) is fixedly connected with a motor coaxially fixed with the helical blades, the feeding pipe (18) is in communication with the connecting cylinder (8), and the communication position is located between the middle rectangular plate (3) and the slurry conveying joint (9).

6. The shallow seam grouting and filling device according to claim 1, characterized in that, The sealing mechanism comprises an electric push rod (19) fixedly connected with one end of the connecting cylinder (8), the electric push rod (19) is coaxially corresponding to the connecting cylinder (8), the telescopic end of the electric push rod (19) extends into the connecting cylinder (8) and is fixedly connected with a sleeve (20) coaxially for sealing, the sleeve (20) is slidingly matched with the connecting cylinder (8), and the rear end of the connecting cylinder (8) is provided with a cavity matched with the sleeve (20).

7. The shallow seam grouting and filling device according to claim 1, characterized in that, The top of each of the two side rectangular plates (4) is provided with a side top plate (22), and the side top plate (22) is detachably connected with the top of the side rectangular plate (4).

8. The shallow seam grouting and filling device according to claim 7, characterized in that, The top of the middle rectangular plate (3) is provided with a middle top plate (23), the middle top plate (23) is detachably connected with the top of the middle rectangular plate (3), and the two ends of the middle top plate (23) are abuttingly matched with the side edges of the two side top plates (22).

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