Coal mine goaf fire prevention grouting delivery device

Abstract

This disclosure relates to the field of coal mining technology. One embodiment of this disclosure provides a coal mine goaf fireproof grouting conveying device, including a base plate. A mixing and stirring assembly is fixedly installed on the top of the base plate, and fixing blocks are fixedly installed on both sides of the bottom of the base plate. In the fixing process, a stable anchoring mechanism is formed through a multi-stage transmission structure from the second adjusting block to the fixing protrusion. The horizontality of the connecting sleeve can be precisely adjusted according to different geological conditions to ensure that the fixing protrusion is firmly drilled into the ground, providing reliable support for the base plate and the mixing and stirring assembly, and effectively resisting the pressure and vibration generated by the grouting operation. In terms of position adjustment, the fixing protrusion is first lifted off the ground, and then the second adjusting block is rotated in the opposite direction to restore the component to its original position. Flexible movement is achieved with the help of external force and the support of the moving assembly. The grouting position can be adjusted according to the actual situation of the goaf. Through the above technical solution, the technical problem of a coal mine goaf fireproof grouting conveying device in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of coal mine equipment technology, and more specifically, to a coal mine goaf fireproof grouting conveying device. Background Technology

[0002] Coal mine goaf areas pose risks such as spontaneous combustion of coal and roof collapse, seriously threatening safe production and the ecological environment. Fire prevention grouting, as a core prevention and control method, effectively isolates oxygen and reduces temperature by injecting materials such as mud into the goaf area, thus curbing the risk of spontaneous combustion of coal at its source. At the same time, it fills voids and enhances the stability of the roof. As the scale and depth of coal mining expand, the goaf environment becomes increasingly complex, placing higher demands on the flexibility, adaptability, and stability of fire prevention grouting equipment.

[0003] Existing coal mine goaf fire prevention grouting equipment mainly relies on pre-laid fixed pipeline networks. Ground pump stations centrally mix the grout, which is then transported to the goaf under pipeline pressure for grouting. While this traditional method achieves fire prevention, it has significant limitations: fixed ground pump station locations are difficult to adapt to the complex and varied terrain and spatial distribution of the goaf; when the grouting area expands or its location changes, the equipment struggles to respond quickly, leading to low operational efficiency; the fixed pipeline system lacks flexibility, making it impossible to adjust the grouting position promptly in the event of a sudden fire or in areas requiring special protection, thus delaying fire prevention efforts; and the equipment lacks a stable and adjustable support structure, making it difficult to ensure stability even with limited position adjustments, posing a risk of uneven grouting or even equipment failure due to shaking or displacement. These limitations hinder the refined and efficient development of coal mine goaf fire prevention work, thus requiring improvement and optimization. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a coal mine goaf fire prevention grouting conveying device, which solves the technical problem of a coal mine goaf fire prevention grouting conveying device in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal mine goaf fireproof grouting conveying device, comprising a base plate, a mixing and stirring assembly fixedly installed on the top of the base plate, fixed blocks fixedly installed on both sides of the bottom of the base plate, a moving assembly provided at the bottom of the base plate, and stabilizing and adapting assemblies fixedly installed on the sides of the fixed blocks. Each stabilizing and adapting assembly includes a fixed bracket fixedly installed on the side of the fixed block, a rotating shaft rotatably installed on the inner side of the fixed bracket, a C-shaped bracket fixedly sleeved on the outer surface of the rotating shaft, connecting rods fixedly installed at both ends of the side of the C-shaped bracket, a first lead screw fixedly installed between the two connecting rods, a connecting sleeve threadedly connected to the outer surface of the first lead screw, a threaded fixing pin threadedly connected inside the connecting sleeve with both ends penetrating inside the connecting sleeve, a first adjusting block fixedly installed at the top of the threaded fixing pin, a fixing protrusion fixedly installed at the bottom of the threaded fixing pin, a second lead screw fixedly installed at one end of the rotating shaft, the second lead screw penetrating the fixed bracket and threadedly connected to its outer surface, and a second adjusting block fixedly installed at the end of the second lead screw.

[0006] As one aspect of this utility model, the mixing assembly includes a mixing tank fixedly installed on the top of a base plate. A planetary gear disk is fixedly installed on the top of the mixing tank. Teeth are fixedly installed on the inner wall of the planetary gear disk, and the teeth cover the entire inner wall of the planetary gear disk. A motor bracket is fixedly installed on the top of the planetary gear disk. A motor is fixedly installed on the inner side of the motor bracket, and the output shaft of the motor extends into the interior of the planetary gear disk. A main gear is fixedly installed at the end of the output shaft of the motor. Multiple auxiliary gears are movably installed on the inner side of the planetary gear disk, and the auxiliary gears mesh with the main gear and the teeth covering the inner wall of the planetary gear disk. A drive shaft is fixedly installed on the inner side of the auxiliary gears. A stirring rod is fixedly installed on the outer surface of the drive shaft, and the stirring rod covers the entire outer surface of the drive shaft. A feed pipe is fixedly connected to the outer surface of the mixing tank. An output pump is fixedly installed on the outer surface of the mixing tank, with one end of the output pump connected to the mixing tank and the other end provided with a grouting pipe.

[0007] As one aspect of this utility model, the top front and rear sides of the base plate are fixedly installed with support brackets and the support brackets do not contact the mixing tank. A support block is fixedly installed between the two support brackets and the support block is arc-shaped and fits against the outer surface of the feed pipe.

[0008] As one aspect of this utility model, a vibrating ball is placed inside the stirring rod, and there are multiple vibrating balls.

[0009] As one aspect of this utility model, an auxiliary stirring rod is fixedly installed on the bottom side of the main gear, and multiple stirring blades are provided on the outer surface of the auxiliary stirring rod.

[0010] As one aspect of this utility model, a protective cover is fixedly installed on the top of the planetary gear disk, and the protective cover is narrow at the top and wide at the bottom.

[0011] As one aspect of this utility model, the movable component includes a movable bracket rotatably mounted on the bottom of the base plate, and the movable bracket is rotatably mounted around the bottom of the base plate, with rollers rotatably mounted on the inner side of the movable bracket.

[0012] As one aspect of this utility model, the fixing protrusion is conical in shape and located below the connecting sleeve.

[0013] As one aspect of this utility model, fixing blocks are fixedly installed on both sides of the bottom of the base plate, and there is a set of two fixing blocks on one side.

[0014] As one aspect of this utility model, the diameter of the bottom plate is larger than the diameter of the mixing tank, and grooves are provided around the outer perimeter of the bottom plate.

[0015] 1. The beneficial effects of the embodiments disclosed herein are as follows: In the fixing stage, a stable anchoring mechanism is formed through the multi-stage transmission structure from the second adjusting block to the fixed protrusion. The level of the connecting sleeve can be precisely adjusted according to different geological conditions to ensure that the fixed protrusion is firmly drilled into the ground, providing reliable support for the base plate and mixing components, and effectively resisting the pressure and vibration generated by the grouting operation. In terms of position adjustment, the fixed protrusion is first lifted off the ground, and then the second adjusting block is rotated in the opposite direction to restore the component to its original position. Flexible movement is achieved with the help of external force and the support of the moving components. The grouting position can be adjusted according to the actual situation of the goaf, which greatly improves the overall applicability of the equipment, can better adapt to different working conditions, reduce the inconvenience caused by position limitations, improve work efficiency, and reduce manpower and time costs. At the same time, it is easy to flexibly fix and adjust the position through stable adapter components, which simplifies the operation process, improves the reusability of the equipment, greatly reduces the project implementation cost, and significantly improves the operation efficiency and safety of goaf treatment.

[0016] 2. The beneficial effects of the embodiments disclosed herein are as follows: The motor is controlled by an external controller, and the power transmission is cleverly achieved through the meshing of the main gear and the auxiliary gear. This drives the stirring rod to efficiently stir the mud. The design of multiple sets of auxiliary gears rotating around the inner side of the planetary gear disk, combined with their own reverse rotation, forms a three-dimensional stirring effect, effectively preventing mud sedimentation and stratification, ensuring the uniformity of the mud, and improving the grouting quality. At the same time, the stable transmission structure can reduce energy consumption and equipment wear during the stirring process, and extend the service life. The stirred mud is directly transported to the coal mine goaf through the grouting pipe connected to the output pump, simplifying the process flow, improving grouting efficiency, and providing reliable and efficient technical support for the treatment of coal mine goaf. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0019] Figure 2 This is a schematic diagram of the fixed bracket structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the planetary gear disk structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary stirring rod structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the stirring rod structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the base plate structure of this utility model.

[0024] In the diagram: 1. Base plate; 2. Mixing and stirring assembly; 201. Mixing and stirring tank; 202. Planetary gear disk; 203. Gear teeth; 204. Main gear; 205. Motor bracket; 206. Motor; 207. Auxiliary gear; 208. Drive shaft; 209. Stirring rod; 210. Auxiliary stirring rod; 211. Vibrating ball; 3. Protective cover; 4. Fixing block; 5. Stabilizing adapter assembly; 501. Fixing bracket; 502. Rotating shaft; 503. C-shaped bracket; 504. Connecting rod; 505. First lead screw; 506. Connecting sleeve; 507. Threaded fixing pin; 508. Fixing protrusion; 509. First adjusting block; 510. Second lead screw; 511. Second adjusting block; 6. Moving assembly; 601. Moving bracket; 602. Roller; 7. Feed pipe; 8. Output pump; 9. Support bracket; 10. Support block. Detailed Implementation

[0025] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0026] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0027] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0028] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-6As shown, this utility model provides a fireproof grouting conveying device for coal mine goaf areas, including a base plate 1. A mixing and stirring assembly 2 is fixedly installed on the top of the base plate 1, and fixed blocks 4 are fixedly installed on both sides of the bottom of the base plate 1. A moving assembly 6 is provided at the bottom of the base plate 1. Stable adapter assemblies 5 are fixedly installed on the sides of the fixed blocks 4. The stable adapter assemblies 5 include fixed brackets 501 fixedly installed on the sides of the fixed blocks 4. A rotating shaft 502 is rotatably installed on the inner side of the fixed bracket 501. A C-shaped bracket 503 is fixedly sleeved on the outer surface of the rotating shaft 502. Connecting rods 504 are fixedly installed at both ends of the side of the C-shaped bracket 503. A first lead screw 505 is fixedly installed between 504. A connecting sleeve 506 is threadedly connected to the outer surface of the first lead screw 505. A threaded fixing pin 507 is threadedly connected inside the connecting sleeve 506, and both ends of the threaded fixing pin 507 pass through the inside of the connecting sleeve 506. A first adjusting block 509 is fixedly installed at the top of the threaded fixing pin 507, and a fixing protrusion 508 is fixedly installed at the bottom of the threaded fixing pin 507. A second lead screw 510 is fixedly installed at one end of the rotating shaft 502, and the second lead screw 510 passes through the fixed bracket 501 and is threadedly connected to its outer surface. A second adjusting block 511 is fixedly installed at the end of the second lead screw 510.

[0032] When the mixing assembly 2 and the base plate 1 need to be fixed, the second adjusting block 511 is rotated. When the second adjusting block 511 rotates, it will drive the second lead screw 510 to rotate. When the second lead screw 510 rotates, it will drive the rotating shaft 502 to start rotating. When the rotating shaft 502 starts rotating, it will drive the C-shaped bracket 503 to gradually approach the ground. Then, the C-shaped bracket 503 will drive the connecting rods 504 on both sides and the first lead screw 505 to approach the ground. When the connecting rod 504 approaches the ground, because the connecting sleeve 506 and the first lead screw 505 are threadedly connected, the adjusting connecting sleeve 506 is kept parallel to the ground. Then, the first adjusting block 509 is rotated. When the first adjusting block 509 rotates, it will drive the threaded fixing pin 507 to rotate. When 07 rotates, the threaded connection between the threaded fixing pin 507 and the connecting sleeve 506 will cause the fixing protrusion 508 to drill into the ground, thereby stabilizing the base plate 1 and the mixing assembly 2. When it is necessary to adjust the position of the goaf grouting, firstly rotate the first adjusting block 509 so that the threaded fixing pin 507 drives the fixing protrusion 508 to disengage from the ground, and then rotate the second adjusting block 511 in the opposite direction, thereby causing the C-shaped bracket 503, connecting rod 504, first screw 505 and connecting sleeve 506 to return to their original positions. At this time, the component 6 can be moved simultaneously by external force to provide movement support, thereby allowing for flexible position adjustment of the goaf, improving overall applicability, and facilitating flexible fixing and position adjustment through the stable adapter component 5.

[0033] In the fixing stage, a stable anchoring mechanism is formed through the multi-stage transmission structure from the second adjusting block 511 to the fixed protrusion 508. The level of the connecting sleeve 506 can be precisely adjusted according to different geological conditions to ensure that the fixed protrusion 508 is firmly drilled into the ground, providing reliable support for the base plate 1 and the mixing component 2, and effectively resisting the pressure and vibration generated by the grouting operation. In terms of position adjustment, the fixed protrusion 508 is first lifted off the ground, and then the second adjusting block 511 is rotated in the opposite direction to restore the component to its original position. With the help of external force and the support of the moving component 6, flexible movement can be achieved. The grouting position can be adjusted according to the actual situation of the goaf, which greatly improves the overall applicability of the equipment, can better adapt to different working conditions, reduce the inconvenience caused by position limitations, improve work efficiency, and reduce labor and time costs. At the same time, it is easy to flexibly fix and adjust the position through the stable adapter component 5, which simplifies the operation process, improves the reusability of the equipment, greatly reduces the project implementation cost, and significantly improves the operation efficiency and safety of goaf treatment.

[0034] In some examples, the mixing assembly 2 includes a mixing tank 201 fixedly mounted on the top of the base plate 1. A planetary gear disk 202 is fixedly mounted on the top of the mixing tank 201. Teeth 203 are fixedly mounted on the inner wall of the planetary gear disk 202, and the teeth 203 cover the entire inner wall of the planetary gear disk 202. A motor bracket 205 is fixedly mounted on the top of the planetary gear disk 202. A motor 206 is fixedly mounted on the inner side of the motor bracket 205, and the output shaft of the motor 206 extends into the planetary gear disk 202. A main gear 204 is fixedly mounted on the end of the output shaft of the motor 206. Multiple auxiliary gears 207 are movably installed on the inner side of the disc 202, and the auxiliary gears 207 mesh with the main gear 204 and the teeth 203 that cover the inner wall of the planetary gear disc 202. A drive shaft 208 is fixedly installed on the inner side of the auxiliary gears 207. A stirring rod 209 is fixedly installed on the outer surface of the drive shaft 208, and the stirring rod 209 covers the outer surface of the drive shaft 208. A feed pipe 7 is fixedly connected to the outer surface of the mixing tank 201. An output pump 8 is fixedly installed on the outer surface of the mixing tank 201, and one end of the output pump 8 is connected to the mixing tank 201, while the other end is provided with a grouting pipe.

[0035] When the operator starts the motor 206 via the external controller, the output shaft of the motor 206 will drive the main gear 204 to rotate. When the main gear 204 starts to rotate, it will drive multiple auxiliary gears 207 to start to rotate clockwise in the direction of the meshing of the teeth 203 on the inner side of the planetary gear disk 202. At the same time, the auxiliary gears 207 will also rotate counterclockwise. When the auxiliary gears 207 rotate counterclockwise, they will drive the stirring rod 209 to start to rotate counterclockwise. When the stirring rod 209 rotates counterclockwise, it will drive the mud material conveyed to the mixing tank 201 through the feed pipe 7 to rotate and stir, so as to avoid the mud material settling and affecting the grouting. Then, it will be transported to the coal mine goaf area for grouting through the grouting pipe set at the other end of the output pump 8.

[0036] The motor 206 is controlled by an external controller, and the power is cleverly transmitted through the meshing of the main gear 204 and the auxiliary gear 207. This drives the stirring rod 209 to efficiently stir the mud. The design of multiple sets of auxiliary gears 207 rotating in a circular motion around the inner side of the planetary gear disk 202, combined with their own reverse rotation, forms a three-dimensional stirring effect. This effectively avoids mud sedimentation and stratification, ensures mud uniformity, and improves grouting quality. At the same time, the stable transmission structure can reduce energy consumption and equipment wear during the stirring process, and extend service life. The stirred mud is directly transported to the coal mine goaf through the grouting pipe connected to the output pump 8, simplifying the process, improving grouting efficiency, and providing reliable and efficient technical support for the treatment of coal mine goaf.

[0037] In some instances, support brackets 9 are fixedly installed on the front and rear sides of the top of the base plate 1, and the support brackets 9 do not contact the mixing tank 201. A support block 10 is fixedly installed between the two support brackets 9, and the support block 10 is arc-shaped and fits against the outer surface of the feed pipe 7.

[0038] A support block 10 is fixedly installed between two support brackets 9. The support block 10 is arc-shaped and fits against the outer surface of the feed pipe 7, which can effectively provide stable support for the feed pipe 7.

[0039] In some instances, the stirring rod 209 contains vibrating balls 211, and there are multiple vibrating balls 211.

[0040] The stirring rod 209 contains multiple vibrating balls 211. When the driving shaft 208 drives the stirring rod 209 to rotate, the vibrating balls 211 collide inside the stirring rod 209, thereby generating vibration. This vibration in the mud reduces the viscosity of the mud, helps to eliminate air bubbles and voids, and thus improves the strength and density of the mud.

[0041] In some instances, an auxiliary stirring rod 210 is fixedly mounted on the bottom side of the main gear 204, and the outer surface of the auxiliary stirring rod 210 is provided with multiple stirring blades.

[0042] The auxiliary stirring rod 210 has multiple stirring blades on its outer surface, which can assist the drive shaft 208 and the stirring rod 209 in stirring, thereby increasing the stirring effect.

[0043] In some instances, a protective cover 3 is fixedly mounted on the top of the planetary gear disk 202, and the protective cover 3 is narrower at the top and wider at the bottom.

[0044] A protective cover 3 is fixedly installed on the top of the planetary gear disk 202. The protective cover 3 is narrow at the top and wide at the bottom, which can effectively protect the motor 206 from external physical impacts.

[0045] In some instances, the movable component 6 includes a movable bracket 601 rotatably mounted on the bottom of the base plate 1, and the movable bracket 601 is rotatably mounted around the bottom of the base plate 1, with rollers 602 rotatably mounted on the inner side of the movable bracket 601.

[0046] The movable bracket 601 is rotatably mounted around the bottom of the base plate 1, which facilitates multi-directional adjustment, and the rollers 602 provide movement support for the entire device.

[0047] In some instances, the retaining protrusion 508 is tapered and located below the connecting sleeve 506.

[0048] By fixing the protrusion 508 in a conical shape and placing it below the connecting sleeve 506, the threaded fixing pin 507 can be made to penetrate deeper into the ground, thereby enhancing the fixing effect of the entire device.

[0049] In some instances, fixing blocks 4 are fixedly installed on both sides of the bottom of the base plate 1, and there are two fixing blocks 4 on one side.

[0050] Fixing blocks 4 are fixedly installed on both sides of the bottom of the base plate 1, and there are two fixing blocks 4 on one side, which can provide fixed support for the fixing bracket 501.

[0051] In some instances, the diameter of the base plate 1 is larger than the diameter of the mixing tank 201, and grooves are provided around the outer perimeter of the base plate 1.

[0052] By making the diameter of the base plate 1 larger than the diameter of the mixing tank 201, the stability of the entire device can be enhanced, and it can be prevented from being easily affected by external physical factors.

[0053] Working principle and usage process of this utility model:

[0054] When the mixing assembly 2 and the base plate 1 need to be fixed, the second adjusting block 511 is rotated. When the second adjusting block 511 rotates, it will drive the second lead screw 510 to rotate. When the second lead screw 510 rotates, it will drive the rotating shaft 502 to start rotating. When the rotating shaft 502 starts rotating, it will drive the C-shaped bracket 503 to gradually approach the ground. Then, the C-shaped bracket 503 will drive the connecting rods 504 on both sides and the first lead screw 505 to approach the ground. When the connecting rod 504 approaches the ground, because the connecting sleeve 506 and the first lead screw 505 are threadedly connected, the adjusting connecting sleeve 506 is kept parallel to the ground. Then, the first adjusting block 509 is rotated. When the first adjusting block 509 rotates, it will drive the threaded fixing pin 507 to rotate. When 07 rotates, the threaded connection between the threaded fixing pin 507 and the connecting sleeve 506 will cause the fixing protrusion 508 to drill into the ground, thereby stabilizing the base plate 1 and the mixing assembly 2. When it is necessary to adjust the position of the goaf grouting, firstly rotate the first adjusting block 509 so that the threaded fixing pin 507 drives the fixing protrusion 508 to disengage from the ground, and then rotate the second adjusting block 511 in the opposite direction, thereby causing the C-shaped bracket 503, connecting rod 504, first screw 505 and connecting sleeve 506 to return to their original positions. At this time, the component 6 can be moved simultaneously by external force to provide movement support, thereby allowing for flexible position adjustment of the goaf, improving overall applicability, and facilitating flexible fixing and position adjustment through the stable adapter component 5.

[0055] When the operator starts the motor 206 via the external controller, the output shaft of the motor 206 will drive the main gear 204 to rotate. When the main gear 204 starts to rotate, it will drive multiple auxiliary gears 207 to start to rotate clockwise in the direction of the meshing of the teeth 203 on the inner side of the planetary gear disk 202. At the same time, the auxiliary gears 207 will also rotate counterclockwise. When the auxiliary gears 207 rotate counterclockwise, they will drive the stirring rod 209 to start to rotate counterclockwise. When the stirring rod 209 rotates counterclockwise, it will drive the mud material conveyed to the mixing tank 201 through the feed pipe 7 to rotate and stir, so as to avoid the mud material settling and affecting the grouting. Then, it will be transported to the coal mine goaf area for grouting through the grouting pipe set at the other end of the output pump 8.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A coal mine goaf fire prevention grouting conveying device, comprising a bottom plate (1), characterized in that: A mixing and stirring assembly (2) is fixedly installed on the top of the base plate (1). Fixed blocks (4) are fixedly installed on both sides of the bottom of the base plate (1). A moving assembly (6) is provided at the bottom of the base plate (1). A stabilizing adapter assembly (5) is fixedly installed on the sides of each fixed block (4). The stabilizing adapter assembly (5) includes a fixed bracket (501) fixedly installed on the side of the fixed block (4). A rotating shaft (502) is rotatably installed on the inner side of the fixed bracket (501). A C-shaped bracket (503) is fixedly sleeved on the outer surface of the rotating shaft (502). Connecting rods (504) are fixedly installed at both ends of the side of the C-shaped bracket (503). A first connecting rod is fixedly installed between the two connecting rods (504). The first lead screw (505) has a connecting sleeve (506) threadedly connected to its outer surface. The connecting sleeve (506) has a threaded fixing pin (507) threadedly connected inside, with both ends of the threaded fixing pin (507) penetrating inside the connecting sleeve (506). A first adjusting block (509) is fixedly installed at the top end of the threaded fixing pin (507), and a fixing protrusion (508) is fixedly installed at the bottom end of the threaded fixing pin (507). A second lead screw (510) is fixedly installed at one end of the rotating shaft (502), and the second lead screw (510) is threadedly connected to the outer surface of the fixed bracket (501) through and in contact with it. A second adjusting block (511) is fixedly installed at the end of the second lead screw (510).

2. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: The mixing assembly (2) includes a mixing tank (201) fixedly mounted on the top of the base plate (1). A planetary gear disk (202) is fixedly mounted on the top of the mixing tank (201). Teeth (203) are fixedly mounted on the inner wall of the planetary gear disk (202), and the teeth (203) cover the inner wall of the planetary gear disk (202). A motor bracket (205) is fixedly mounted on the top of the planetary gear disk (202). A motor (206) is fixedly mounted on the inner side of the motor bracket (205), and the output shaft of the motor (206) extends into the planetary gear disk (202). A main gear (204) is fixedly mounted on the end of the output shaft of the motor (206). Multiple auxiliary gears (207) are movably installed on the inner side of (202), and the auxiliary gears (207) mesh with the main gear (204) and the teeth (203) covering the inner wall of the planetary gear disk (202). A drive shaft (208) is fixedly installed on the inner side of the auxiliary gears (207). A stirring rod (209) is fixedly installed on the outer surface of the drive shaft (208), and the stirring rod (209) covers the outer surface of the drive shaft (208). A feed pipe (7) is fixedly connected to the outer surface of the mixing tank (201). An output pump (8) is fixedly installed on the outer surface of the mixing tank (201), and one end of the output pump (8) is connected to the mixing tank (201), and the other end is provided with a grouting pipe.

3. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: Support brackets (9) are fixedly installed on the front and rear sides of the top of the base plate (1) and the support brackets (9) do not contact the mixing tank (201). A support block (10) is fixedly installed between the two support brackets (9) and the support block (10) is arc-shaped and fits against the outer surface of the feed pipe (7).

4. The coal mine goaf fire prevention grouting and conveying device according to claim 2, characterized in that: The stirring rod (209) contains a vibrating ball (211), and there are multiple vibrating balls (211).

5. The coal mine goaf fire prevention grouting and conveying device according to claim 2, characterized in that: An auxiliary stirring rod (210) is fixedly installed on the bottom side of the main gear (204), and multiple stirring blades are provided on the outer surface of the auxiliary stirring rod (210).

6. A coal mine goaf fireproof grouting conveying device according to claim 2, characterized in that: A protective cover (3) is fixedly installed on the top of the planetary gear disk (202), and the protective cover (3) is narrow at the top and wide at the bottom.

7. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: The movable component (6) includes a movable bracket (601) rotatably mounted on the bottom of the base plate (1), and the movable bracket (601) is rotatably mounted around the bottom of the base plate (1), and a roller (602) is rotatably mounted on the inner side of the movable bracket (601).

8. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: The fixing protrusion (508) is conical in shape and located below the connecting sleeve (506).

9. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly installed on both sides of the bottom with fixing blocks (4), and there are two fixing blocks (4) on one side.

10. The coal mine goaf fire prevention grouting and conveying device according to claim 1, characterized in that: The diameter of the bottom plate (1) is larger than the diameter of the mixing tank (201), and grooves are provided around the outside of the bottom plate (1).

Images