Novel rapid hole sealing grouting material and preparation device thereof

Abstract

The invention relates to the technical field of grouting materials, in particular to a novel rapid hole sealing grouting material and a preparation device thereof. Comprising the following components in parts by weight: 50 to 60 parts of superfine Portland cement, 10 to 14 parts of ordinary Portland cement, 10 to 14 parts of silica fume, 5 to 10 parts of slag powder, 1 to 2 parts of activated and modified nano silicon dioxide, 0.02 to 0.025 part of a composite high-efficiency water reducing agent, 0.02 to 0.05 part of an expanding agent, 0.06 to 0.08 part of an accelerator, 0.02 to 0.04 part of a suspending agent and 0.01 to 0.03 part of a defoaming agent. The superfine Portland cement and the ordinary Portland cement are adopted as main materials, the compactness of the grouting material is improved, the solidification process of the grouting material is accelerated, meanwhile, the overall cost is reduced, the expanding agent is added into the grouting material, and the anti-permeability of the grouting material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grouting materials, and in particular to a novel rapid hole-sealing grouting material and a preparation device thereof. Background Art

[0002] Rapid hole-sealing grouting materials have the characteristics of fast curing speed and good sealing performance. They can form a stable sealing structure in a short time and are specially used in coal mining, tunnel construction and other fields. In the field of coal mining, in order to ensure the safety and efficiency of coal mining, sealing technology becomes extremely important. Sealing can prevent gas outbursts and reinforce the stratum, thereby ensuring the smooth production of coal mines. However, traditional hole-sealing grouting materials are mostly ordinary cement and polymer materials. Ordinary cement has many limitations such as long sealing time, slow curing speed and large particle size, which affect construction efficiency. Polymer materials have disadvantages such as high price and flammability. Therefore, a new type of rapid hole-sealing grouting material is needed to meet the needs of rapid advancement in the field of coal mining. Summary of the invention

[0003] In order to overcome the problems raised in the above background technology, the present invention provides a novel rapid hole sealing grouting material and a preparation device thereof.

[0004] Technical solution: A new type of rapid hole sealing grouting material, including:

[0005] 50-60 parts of ultrafine Portland cement, 10-14 parts of ordinary Portland cement, 10-14 parts of microsilica powder, 5-10 parts of slag powder, 1-2 parts of activated modified nano-silicon dioxide, 0.02-0.025 parts of composite high-efficiency water reducing agent, 0.02-0.05 parts of expansion agent, 0.06-0.08 parts of accelerator, 0.02-0.04 parts of suspending agent and 0.01-0.03 parts of defoaming agent.

[0006] Furthermore, the composite high-efficiency water reducer is lignin sulfonate, polycarboxylic acid-based high-efficiency water reducer or aliphatic high-efficiency water reducer.

[0007] Furthermore, the expansion agent is calcium sulfoaluminate, magnesium oxide or ettringite.

[0008] A preparation device for a novel rapid hole-sealing grouting material, based on the novel rapid hole-sealing grouting material, comprises:

[0009] Mixing tank;

[0010] A motor is fixedly connected to the stirring barrel, the stirring barrel is rotatably connected to a rotating tube, the motor is drivingly connected to the rotating tube, the rotating tube is fixedly connected to a stirring blade, and the stirring blade is provided with a slide groove;

[0011] A reciprocating screw is threadedly connected to the mixing barrel, the central axis of the reciprocating screw coincides with the central axis of the rotating tube, the reciprocating screw is fixedly connected to a connecting block, the connecting block is rotatably connected to a material pocket shell, the material pocket shell is fixedly connected to a transmission disk, a plurality of protrusions are provided on the outside of the transmission disk, the stirring blade is fixedly connected to an extrusion frame, the extrusion frame is extruded and matched with the groove of the transmission disk, the material pocket shell is rotatably connected to a rectangular slider, and the rectangular slider is slidably connected to the slide groove of the stirring blade.

[0012] Furthermore, there is damping between the connecting block and the pocket shell.

[0013] Furthermore, the central angles corresponding to the two protrusions on the transmission plate that are farthest apart are 180°.

[0014] Furthermore, it also includes:

[0015] An intermittent feeding assembly is arranged on the rotating tube, and is used to make the grouting raw materials more evenly distributed in the mixed liquid. The intermittent feeding assembly includes:

[0016] A circulation shell is fixedly connected to the material pocket shell, the circulation shell is communicated with the material pocket shell, a fixing plate is fixedly connected to the inner side of the circulation shell, a truncated cone block is slidably connected to the fixing plate, the truncated cone block is sealed with the circulation shell, a first spring is fixedly connected between the fixing plate and the truncated cone block, and an extrusion column is fixedly connected to the truncated cone block;

[0017] A material storage bin is fixedly connected to the rotating tube, the material storage bin is provided with a through hole, the central axis of the material storage bin through hole coincides with the central axis of the circulation shell, a shielding plate is fixedly connected in the through hole of the material storage bin, the shielding plate is rotatably connected to a shielding frame, the shielding frame is fixedly connected to an extrusion block, the extrusion column is extrusion-matched with the extrusion block of the shielding frame, and a first torsion spring is fixedly connected between the shielding plate and the shielding frame;

[0018] The material receiving assembly is arranged on the stirring blade and is used to accelerate the distribution of the grouting raw materials in the material bag shell into the mixed liquid.

[0019] Furthermore, the truncated cone block is made of soft material.

[0020] Furthermore, the elastic coefficient of the first spring is smaller than the elastic coefficient of the first torsion spring.

[0021] Furthermore, the material receiving assembly comprises:

[0022] A rotating rod, rotatably connected to the stirring blade, the rotating rod is fixedly connected with a square block, a second torsion spring is fixedly connected between the rotating rod and the stirring blade, the square block is slidably connected with a trapezoidal block, and a second spring is fixedly connected between the square block and the trapezoidal block;

[0023] A rectangular block, fixedly connected to the stirring blade, the rectangular block being limitedly matched with the lower side surface of the trapezoidal block;

[0024] The extrusion plate is fixedly connected to the extrusion column, and the extrusion plate is extrusion-matched with the trapezoidal block.

[0025] The beneficial effects of the present invention are as follows: 1. The present invention adopts ultrafine silicate cement and ordinary silicate cement as main materials, improves the density of the grouting material, accelerates the solidification process of the grouting material, enables it to form a stable plugging structure in a short time, and reduces the overall cost while ensuring the performance through reasonable proportions, and adds an expansion agent to the grouting material to compensate for the shrinkage of the grouting material during the hardening process, thereby improving the impermeability of the grouting material.

[0026] 2. The present invention brings the grouting raw materials deposited below the stirring barrel to the mixed liquid above by continuously moving the material shell up and down when stirring the grouting raw materials and water, so that the grouting raw materials are distributed more widely, and at the same time drives the bubbles in the mixed liquid to move upward, accelerates the discharge of bubbles, and improves the density of the grouting material.

[0027] 3. The present invention presses the grouting raw materials into the mixed liquid in batches through the material bag shell, thereby avoiding the phenomenon that the grouting raw materials are unevenly dispersed and agglomerated when they are poured into water at one time.

[0028] 4. The present invention allows the mixed liquid to flow through the inner side of the bag shell intermittently, so that the grouting raw materials remaining on the inner side of the bag shell are brought into the mixed liquid, thereby ensuring the quality of the grouting material. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting block and the pocket shell of the present invention;

[0031] Figure 3 It is a three-dimensional structural schematic diagram of the reciprocating screw and the connecting block of the present invention;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the material pocket shell and the extrusion frame of the present invention;

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the fixing plate and the truncated cone block of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the storage bin of the present invention;

[0035] Figure 7It is a schematic diagram of the three-dimensional structure of the storage bin and the shielding plate of the present invention;

[0036] Figure 8 It is a schematic diagram of the three-dimensional structure of the shielding plate and the first torsion spring of the present invention;

[0037] Fig. 9 An exploded view of the shielding plate and the shielding frame of the present invention;

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure of the square block and the extruded plate of the present invention;

[0039] Fig.11 It is a schematic diagram of the three-dimensional structure of the rotating rod and the second torsion spring of the present invention.

[0040] In the figure: 1. mixing barrel, 2. motor, 3. rotating tube, 4. mixing blade, 5. reciprocating screw, 6. connecting block, 7. material bag shell, 8. transmission plate, 9. extrusion frame, 10. rectangular slider, 901. circulation shell, 902. fixed plate, 903. truncated cone block, 904. first spring, 905. extrusion column, 906. material storage bin, 907. shielding plate, 908. shielding frame, 909. first torsion spring, 1001. rotating rod, 1002. square block, 1003. second torsion spring, 1004. trapezoidal block, 1005. second spring, 1006. rectangular block, 1007. extrusion plate. DETAILED DESCRIPTION

[0041] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0042] Example 1: A new type of rapid sealing grouting material, including: 50-60 parts of ultrafine silicate cement, 10-14 parts of ordinary silicate cement, 10-14 parts of microsilica powder, 5-10 parts of slag powder, 1-2 parts of activated modified nano silicon dioxide, 0.02-0.025 parts of composite high-efficiency water reducing agent, 0.02-0.05 parts of expansion agent, 0.06-0.08 parts of accelerator, 0.02-0.04 parts of suspending agent, and 0.01-0.03 parts of defoaming agent.

[0043] In the present invention, the composite high-efficiency water reducer is lignin sulfonate, polycarboxylic acid-based high-efficiency water reducer or aliphatic high-efficiency water reducer.

[0044] In the present invention, the expansion agent is calcium sulphoaluminate, magnesium oxide or ettringite.

[0045] Most of the existing grouting material production devices are mixers. In order to avoid too much air being drawn into the mixed liquid during stirring, the stirring blades rotate relatively slowly at the beginning, and the driving force for the grouting raw materials is poor, causing some of the grouting raw materials to settle at the bottom of the mixing barrel and cannot be fully mixed with the mixed liquid in time, affecting production efficiency.

[0046] Example 2: Based on Example 1, a new type of rapid hole sealing grouting material preparation device is provided. Based on the above-mentioned new type of rapid hole sealing grouting material, combined with Figure 1-Figure 6 As shown, it includes: a stirring barrel 1; a motor 2, which is fixed to the stirring barrel 1, and the stirring barrel 1 is rotatably connected to a rotating tube 3, the motor 2 is transmission-connected to the rotating tube 3, the rotating tube 3 is fixed to a stirring blade 4, and the stirring blade 4 is provided with a slide groove; a reciprocating screw 5, which is threadedly connected to the stirring barrel 1, the central axis of the reciprocating screw 5 coincides with the central axis of the rotating tube 3, the reciprocating screw 5 is fixed to a connecting block 6, the connecting block 6 is rotatably connected to a pocket shell 7, there is damping between the connecting block 6 and the pocket shell 7, the pocket shell 7 is fixed to a transmission disk 8, a plurality of protrusions are arranged on the outside of the transmission disk 8, and the central angles corresponding to the two protrusions on the transmission disk 8 that are farthest apart are 180°; the stirring blade 4 is fixed to an extrusion frame 9, the extrusion frame 9 is extruded and matched with the groove of the transmission disk 8, the pocket shell 7 is rotatably connected to a rectangular slider 10, and the rectangular slider 10 is slidingly connected to the slide groove of the stirring blade 4.

[0047] In the above scheme, the mixing barrel 1 is the shell of the existing equipment. The mixing barrel 1 is composed of a cylinder, an N-shaped frame and two L-shaped frames. The inner wall of the mixing barrel 1 is fixedly connected with a plurality of arc plates distributed in the circumferential direction. The bending direction of the arc plates is the rotation direction of the mixing blades 4, which is used to make the grouting raw materials close to the inner wall of the mixing barrel 1 flow to the middle of the mixing barrel 1. The lower part of the mixing barrel 1 is provided with a discharge port for taking out the grouting materials after stirring. The L-shaped rod on the right side of the mixing barrel 1 is fixedly connected with a motor 2, and the output shaft of the motor 2 is fixedly connected with a first gear. The rotating tube 3 is located in the middle of the n-shaped frame, a second gear is fixedly connected to the upper part of the rotating tube 3, the first gear is meshed with the second gear, and is used to make the motor 2 drive the rotating tube 3 to rotate, the number of teeth of the first gear and the second gear can be adjusted according to actual use conditions, the stirring blade 4 includes two centrally symmetrically distributed ones, which are respectively fixed to the left and right sides of the rotating tube 3, and the stirring blade 4 is L-shaped, and one side of the stirring blade 4 that pushes the grouting raw material during stirring is set as an arc surface, which is used to make the grouting raw material flow along the arc surface to the two sides of the stirring blade 4 to avoid accumulation on the stirring blade 4.

[0048] The reciprocating screw 5 is an existing device, which is threadedly connected to the L-shaped frame on the left side of the mixing barrel 1. The reciprocating screw 5 passes through the rotating tube 3. The diameter of the reciprocating screw 5 is smaller than the inner diameter of the rotating tube 3. The connecting block 6 is located at the lower end of the reciprocating screw 5. There are two bag shells 7 that are symmetrically distributed around the center. The bag shells 7 are composed of two cylinders, two circular plates and a semi-cylinder. The bag shells 7 are rotatably connected to the side of the connecting block 6 close to the stirring blade 4. The damping between the connecting block 6 and the bag shell 7 should ensure that the two themselves do not rotate relative to each other during the rotation process. The transmission disk 8 is located on the cylinder of the bag shell 7 away from the connecting block 6. The transmission disk 8 is provided with a number of evenly distributed protrusions. The extrusion frame 9 is located in the upper and middle part of the stirring blade 4. The extrusion frame 9 is composed of an n-shaped plate and a number of cross bars distributed in a linear array.

[0049] Before using the present invention to produce fast-sealing grouting materials, the staff will pour water and grouting raw materials that meet the work requirements into the mixing barrel 1 according to a certain ratio. However, it is inevitable that some air will be mixed into the water when the grouting raw materials are added, so that the water and the grouting raw materials exist in the mixing barrel 1 in a mixed state. When the liquid level of the water and the grouting raw materials in the mixing barrel 1 submerges the extrusion frame 9 but does not submerge the storage bin 906 above, the staff will no longer pour water and grouting raw materials into the mixing barrel 1.

[0050] When no more water and grouting materials are poured into the mixing barrel 1, the staff starts the motor 2. The output shaft of the motor 2 drives the rotating tube 3 to rotate through the meshing transmission of the first gear and the second gear. The rotating tube 3 drives the two stirring blades 4 symmetrically distributed in the center to rotate counterclockwise to stir the water and the grouting materials to form a mixed liquid. During the stirring process, the mixed liquid will bring some air into it and form bubbles.

[0051] When the stirring blade 4 rotates, the stirring blade 4 drives the adjacent rectangular slider 10 to rotate, the rectangular slider 10 drives the adjacent pocket shell 7 to rotate, the two pocket shells 7 symmetrically distributed in the center jointly drive the connecting block 6 to rotate, the connecting block 6 drives the reciprocating screw 5 to rotate, the reciprocating screw 5 rotates and moves up and down at the same time, and the reciprocating screw 5 drives the connecting block 6 to move up and down.

[0052] When the reciprocating screw 5 moves upward, the reciprocating screw 5 drives the connecting block 6 to move upward, and the connecting block 6 moves upward, driving the two material pocket shells 7 to move upward. The following will take the movement process of the right side parts of the reciprocating screw 5 as an example: the material pocket shell 7 moves upward and drives part of the grouting raw material deposited below to move upward through its own cavity, and the material pocket shell 7 drives the transmission plate 8 and the rectangular slider 10 to move upward, so that the rectangular slider 10 slides upward along the slide groove opened by the stirring blade 4.

[0053] When the transmission disc 8 moves upward to contact the extrusion frame 9, the cross bar on the extrusion frame 9 squeezes the groove on the transmission disc 8, causing the transmission disc 8 to rotate. The rotation of the transmission disc 8 enables the material pocket shell 7 to overcome the resistance of the rotation connection with the connecting block 6, driving the material pocket shell 7 to rotate. The rotation of the material pocket shell 7 pours the grouting raw material in its own cavity into the mixed liquid above, so that the grouting raw material is dispersed more evenly and helps to discharge bubbles in the mixed liquid from the mixed liquid.

[0054] When the material pocket shell 7 rotates upward by 180°, the cross bar on the extrusion frame 9 releases the extrusion of the groove on the transmission plate 8, and the material pocket shell 7 stops rotating. As the stirring blade 4 keeps rotating, the reciprocating screw 5 continues to move upward for a distance and then starts to move downward.

[0055] When the reciprocating screw 5 moves downward, the above action is repeated, but the direction of movement and the direction of rotation of the transmission plate 8 are opposite to those described above.

[0056] As the stirring blade 4 rotates continuously, the above two actions are repeated alternately, and the material bag shell 7 continuously drives the grouting raw materials deposited below into the mixed liquid above, thereby enhancing the mixing degree of water and the grouting raw materials and making the grouting raw materials dispersed more evenly.

[0057] When the water and the grouting raw materials are fully mixed, the staff turns off the motor 2 and takes out the finished grouting material from the discharge hole below the mixing barrel 1.

[0058] When producing existing grouting materials, the grouting raw materials and water are added to the mixer at one time. This will cause the grouting raw materials to gather at a certain location and cause agglomeration, resulting in uneven distribution of the grouting raw materials, prolonging the mixing time and affecting production efficiency.

[0059] Embodiment 3: Based on Embodiment 2, Figure 4-Figure 9As shown, it also includes: an intermittent feeding component, which is arranged on the rotating tube 3. The intermittent feeding component is used to make the grouting raw materials more evenly distributed in the mixed liquid. The intermittent feeding component includes: a circulation shell 901, which is fixed to the material pocket shell 7. The circulation shell 901 is connected to the material pocket shell 7. A fixed plate 902 is fixed to the inner side of the circulation shell 901. The fixed plate 902 is slidably connected to a truncated block 903. The truncated block 903 is set to a soft material. The truncated block 903 is sealed with the circulation shell 901. A first spring 904 is fixed between the fixed plate 902 and the truncated block 903. The truncated block 903 is fixed to an extrusion column 905; a storage bin 906, fixedly connected to the rotating tube 3, the storage bin 906 is provided with a through hole, a baffle plate 907 is fixedly connected in the through hole of the storage bin 906, the baffle plate 907 is rotatably connected to a baffle frame 908, the baffle frame 908 is fixedly connected to an extrusion block, the extrusion column 905 is extruded and matched with the extrusion block of the baffle frame 908, a first torsion spring 909 is fixedly connected between the baffle plate 907 and the baffle frame 908, and the elastic coefficient of the first spring 904 is smaller than the elastic coefficient of the first torsion spring 909; a material receiving assembly, arranged on the stirring blade 4, is used to accelerate the distribution of the grouting raw materials in the material bag shell 7 into the mixed liquid.

[0060] In the above scheme, the material pocket shell 7 is provided with three through holes, and the central axes of the circles corresponding to the three through holes are perpendicular to the central axis of the material pocket shell 7, so as to better allow the material to pass through when the material pocket shell 7 moves vertically. The circulation shell 901 is fixedly connected to the through holes on the material pocket shell 7. The circulation shell 901 is composed of a circular tube and two truncated cone rings. The small bottom surfaces of the two truncated cone rings fit together, and the large bottom surface of one of the truncated cone rings fits together with the bottom surface of the circular tube. The fixed plate 902 is located at the upper part of the inner side of the circular tube of the circulation shell 901. The upper side surface of the truncated cone block 903 is fixedly connected with a sliding rod, and the truncated cone block is slidably connected to the fixed plate 902 through the sliding rod. The truncated cone block 903 is sealed with the inner side surface of the truncated cone ring located in the middle of the circulation shell 901. The elastic material of the truncated cone block 903 is used to extrude the truncated cone block 903 and the grouting raw material when the circulation shell 901 is blocked. The first spring 904 is made of stainless steel, and the extrusion column 905 is composed of a round rod and two extrusion pins. The extrusion column 905 is fixed to the lower side of the truncated cone block 903. In the present invention, there are two storage bins 906 that are symmetrically distributed in the center. The number of through holes in the storage bin 906 is consistent with the number of through holes in the bag shell 7. The central axis of the through hole of the storage bin 906 coincides with the central axis of the through hole of the bag shell 7. The shape of the baffle plate 907 is a disc with two fan-shaped notches symmetrically distributed in the center. The baffle frame 908 is composed of a disc with fan-shaped notches and two extrusion blocks. The cross-section of the extrusion block is triangular. The middle part of the baffle frame 908 is rotatably connected to the baffle plate 907, and the upper side of the baffle frame 908 is tightly fitted with the lower side of the baffle plate 907 to ensure that the grouting raw materials will not leak.

[0061] Combination Fig.10 and Fig.11As shown, the material receiving assembly includes: a rotating rod 1001, which is rotatably connected to the stirring blade 4, the rotating rod 1001 is fixedly connected with a square block 1002, a second torsion spring 1003 is fixedly connected between the rotating rod 1001 and the square block 1002, the square block 1002 is slidably connected with a trapezoidal block 1004, and a second spring 1005 is fixedly connected between the square block 1002 and the stirring blade 4; a rectangular block 1006, which is fixedly connected to the stirring blade 4, and the rectangular block 1006 is limitedly matched with the lower side surface of the trapezoidal block 1004; an extrusion plate 1007, which is fixedly connected to the extrusion column 905, and the extrusion plate 1007 is extruded and matched with the trapezoidal block 1004.

[0062] In the above scheme, the number of rotating rods 1001 in a single material receiving assembly is five distributed in a linear array, the rotating rods 1001 are located on the side of the stirring blade 4 close to the reciprocating screw 5, the square block 1002 is provided with a rectangular notch, the trapezoidal block 1004 is slidably connected with the rectangular notch of the square block 1002, the height of the trapezoidal block 1004 is greater than the maximum distance that the truncated cone block 903 can slide along the fixed plate 902, and is used to extend the time for 903 to release the blockage of the convection shell 901, and the second spring 1005 is located at In the rectangular notch of the square block 1002, the second spring 1005 is made of stainless steel. The number of rectangular blocks 1006 is consistent with the number of rotating rods 1001. The upper side of the rectangular block 1006 contacts the lower side of the trapezoidal block 1004 to limit the downward swing of the trapezoidal block 1004. The extrusion plate 1007 is fixedly connected to the three extrusion columns 905, and the distance from the upper side of the extrusion plate 1007 to the lower side of the circulation shell 901 is equal to the maximum distance that the truncated cone block 903 can slide along the fixed plate 902.

[0063] Take the movement process of the right side part of the reciprocating screw 5 as an example: repeat the action in Example 2, when the pocket shell 7 moves upward, the pocket shell 7 drives the three circulation shells 901 to move upward, the circulation shell 901 moves upward to drive the adjacent fixed plate 902 to move upward, the fixed plate 902 moves upward to drive the adjacent truncated block 903 to move upward, the truncated block 903 moves upward to drive the adjacent extrusion column 905 to move upward, the three extrusion columns 905 move upward to jointly drive the extrusion plate 1007 to move upward, and the extrusion plate 1007 moves upward according to Five trapezoidal blocks 1004 are squeezed at a time, and the squeezing of the squeezing plate 1007 and one of the trapezoidal blocks 1004 is taken as an example: the trapezoidal block 1004 is squeezed during the upward movement of the squeezing plate 1007, so that the trapezoidal block 1004 drives the rotating rod 1001 to rotate through the square block 1002, and the second torsion spring 1003 is twisted. When the rotating rod 1001 rotates a certain angle, the squeezing plate 1007 releases the squeezing of the trapezoidal block 1004, and the rotating rod 1001 drives the trapezoidal block 1004 to return to its original position under the action of the elastic force of the second torsion spring 1003.

[0064] When the material pocket shell 7 rotates upward by 180°, the material pocket shell 7 drives the three circulation shells 901 and their internal accessories to rotate 180° together. At the same time, the cross bar on the extrusion frame 9 releases the extrusion of the grooves on the adjacent transmission disk 8, and the material pocket shell 7 stops rotating. Then the reciprocating screw 5 continues to drive the material pocket shell 7 to move upward, and the above action is repeated.

[0065] When the material bag shell 7 moves upward, the material bag shell 7 gradually exposes the liquid surface of the mixed liquid, and the extrusion column 905 gradually contacts the extrusion block on the lower side of the adjacent baffle frame 908, and then the extrusion column 905 squeezes the two extrusion blocks on the lower side of the adjacent baffle frame 908. The first spring 904 is compressed under the squeezing of the two extrusion blocks on the lower side of the adjacent baffle frame 908, so that the extrusion column 905 moves relatively toward the adjacent fixed plate 902. The relative movement of the extrusion column 905 toward the adjacent fixed plate 902 drives the adjacent truncated cone block 903 to move relatively toward the adjacent fixed plate 902, so that the truncated cone block 903 releases the blockage of the adjacent circulation shell 901.

[0066] When the first spring 904 is compressed to a certain extent, the elastic force generated by the first spring 904 acts on the adjacent extrusion column 905, increasing the extrusion force of the extrusion column 905 on the two extrusion blocks on the lower side of the adjacent shielding frame 908, causing the shielding frame 908 to rotate. The shielding frame 908 rotates and gradually releases the shielding of the adjacent shielding plate 907. A gap begins to appear between the two, and the material in the storage bin 906 begins to flow downward from the gap between the adjacent shielding plate 907 and the adjacent shielding frame 908. As the extrusion column 905 moves upward, the shielding plate 907 and the adjacent shielding frame 908 gradually increases, and at this time, the side of the circulation shell 901 away from the adjacent fixed plate 902 is located above the lower side of the through hole of the adjacent storage bin 906, ensuring that the grouting raw materials in the storage bin 906 can also fall into the circulation shell 901 in a rotating state. When the reciprocating screw 5 moves to the maximum height, the gap between the baffle plate 907 and the adjacent baffle frame 908 is the largest, and the material falling into the circulation shell 901 falls along the inner wall of the circulation shell 901 and the gap between the frustum block 903 and the inner wall of the adjacent circulation shell 901 onto the mixed liquid surface below the bag shell 7.

[0067] When the reciprocating screw 5 moves downward, the action of Example 2 is repeated, the reciprocating screw 5 drives the connecting block 6 to move downward, the connecting block 6 moves downward and drives the bag shell 7 to move downward, the bag shell 7 moves downward to press the grouting raw material below the bag shell 7 below the liquid surface of the mixed liquid to ensure that the grouting raw material is in full contact with the mixed liquid, the bag shell 7 moves downward and drives the three extrusion columns 905 to move downward, the extrusion columns 905 move downward and gradually release the extrusion of the two extrusion blocks on the lower side of the adjacent shielding frame 908, the shielding frame 908 is reset under the action of the adjacent second torsion spring 1003, and the gap of the shielding plate 907 is blocked, and after the shielding frame 908 is reset, the cone moves relatively in the direction away from the adjacent fixed plate 902 under the action of the elastic force of the adjacent first spring 904, and re-blocks the adjacent circulation shell 901.

[0068] When the three extrusion columns 905 move downward, the three extrusion columns 905 move downward together to drive the extrusion plate 1007 to move downward, and the extrusion plate 1007 moves downward to sequentially squeeze the five trapezoidal blocks 1004. Taking the extrusion of the extrusion plate 1007 and one of the trapezoidal blocks 1004 as an example, the extrusion plate 1007 squeezes the trapezoidal block 1004 during the downward movement, and the first spring 904 is compressed under the extrusion of the inclined surface of the trapezoidal block 1004, so that the extrusion column 905 moves relatively toward the direction of the adjacent fixed plate 902, and the extrusion column 905 moves toward the adjacent fixed plate 902. The relative movement in the direction of the adjacent fixed plate 902 drives the adjacent truncated block 903 to move relative to the direction of the adjacent fixed plate 902, so that the truncated block 903 releases the blockage of the adjacent flow shell 901. When the first spring 904 is compressed to a certain extent, the elastic force generated by the first spring 904 acts on the extrusion plate 1007 through the adjacent extrusion column 905, so that the pressure of the extrusion plate 1007 on the inclined surface of the trapezoidal block 1004 is greater than the elastic force of the second spring 1005, and the trapezoidal block 1004 slides backward and compresses the second spring 1005.

[0069] When the trapezoidal block 1004 slides backward for a certain distance, the extrusion plate 1007 releases the extrusion with the trapezoidal block 1004, and the truncated cone block 903 moves relatively to the direction away from the adjacent fixed plate 902 under the action of the elastic force of the adjacent first spring 904, and re-blocks the adjacent circulation shell 901. When the bag shell 7 moves downward, the intermittent blocking of the adjacent circulation shell 901 by the truncated cone block 903 allows the mixed liquid to flow through the bag shell 7, and the grouting raw materials remaining on the bag shell 7 are carried to various places, thereby ensuring the quality of the grouting material. As the stirring blade 4 continues to rotate, the above actions are repeated alternately.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of rapid sealing grouting material, characterized in that: include: 50-60 parts of ultrafine Portland cement, 10-14 parts of ordinary Portland cement, 10-14 parts of microsilica powder, 5-10 parts of slag powder, 1-2 parts of activated modified nano-silicon dioxide, 0.02-0.025 parts of composite high-efficiency water reducing agent, 0.02-0.05 parts of expansion agent, 0.06-0.08 parts of accelerator, 0.02-0.04 parts of suspending agent and 0.01-0.03 parts of defoaming agent.

2. A novel rapid hole sealing grouting material according to claim 1, characterized in that: The composite high-efficiency water reducer is lignin sulfonate, polycarboxylic acid-based high-efficiency water reducer or aliphatic high-efficiency water reducer.

3. A novel rapid hole sealing grouting material according to claim 1, characterized in that: The expansion agent is calcium sulfoaluminate, magnesium oxide or ettringite.

4. A preparation device for a novel rapid hole-sealing grouting material, according to the novel rapid hole-sealing grouting material of claim 1, characterized in that: include: Mixing bucket (1); The motor (2) is fixedly connected to the stirring barrel (1), the stirring barrel (1) is rotatably connected to a rotating tube (3), the motor (2) is transmission-connected to the rotating tube (3), the rotating tube (3) is fixedly connected to a stirring blade (4), and the stirring blade (4) is provided with a slide groove; A reciprocating screw (5) is threadedly connected to the stirring barrel (1), the central axis of the reciprocating screw (5) coincides with the central axis of the rotating tube (3), the reciprocating screw (5) is fixedly connected to a connecting block (6), the connecting block (6) is rotatably connected to a material pocket shell (7), the material pocket shell (7) is fixedly connected to a transmission disk (8), the outside of the transmission disk (8) is provided with a plurality of protrusions, the stirring blade (4) is fixedly connected to an extrusion frame (9), the extrusion frame (9) is extruded and matched with the groove of the transmission disk (8), the material pocket shell (7) is rotatably connected to a rectangular slider (10), and the rectangular slider (10) is slidably connected to the slide groove of the stirring blade (4).

5. A preparation device for a novel rapid hole sealing grouting material according to claim 4, characterized in that: There is damping between the connecting block (6) and the pocket shell (7).

6. A preparation device for a novel rapid hole sealing grouting material according to claim 4, characterized in that: The central angles of the two protrusions on the transmission plate (8) that are farthest apart from each other are 180°.

7. A preparation device for a novel rapid hole sealing grouting material according to claim 4, characterized in that: include: An intermittent feeding assembly is arranged on the rotating tube (3), and is used to make the grouting raw material more evenly distributed in the mixed liquid. The intermittent feeding assembly comprises: A circulation shell (901) is fixedly connected to the material pocket shell (7), the circulation shell (901) is communicated with the material pocket shell (7), a fixing plate (902) is fixedly connected to the inner side of the circulation shell (901), a truncated cone block (903) is slidably connected to the fixing plate (902), the truncated cone block (903) and the circulation shell (901) are sealed and matched, a first spring (904) is fixedly connected between the fixing plate (902) and the truncated cone block (903), and an extrusion column (905) is fixedly connected to the truncated cone block (903); A material storage bin (906) is fixedly connected to the rotating tube (3), the material storage bin (906) is provided with a through hole, the central axis of the through hole of the material storage bin (906) coincides with the central axis of the circulation shell (901), a shielding plate (907) is fixedly connected in the through hole of the material storage bin (906), the shielding plate (907) is rotatably connected to a shielding frame (908), the shielding frame (908) is fixedly connected to an extrusion block, the extrusion column (905) is extrusion-matched with the extrusion block of the shielding frame (908), and a first torsion spring (909) is fixedly connected between the shielding plate (907) and the shielding frame (908); The material receiving assembly is arranged on the stirring blade (4) and is used to accelerate the distribution of the grouting raw materials in the material pocket shell (7) into the mixed liquid.

8. A preparation device for a novel rapid hole sealing grouting material according to claim 7, characterized in that: The truncated cone block (903) is made of a soft material.

9. A preparation device for a novel rapid hole sealing grouting material according to claim 7, characterized in that: The elastic coefficient of the first spring (904) is smaller than the elastic coefficient of the first torsion spring (909).

10. A preparation device for a novel rapid hole sealing grouting material according to claim 7, characterized in that: The material receiving assembly comprises: A rotating rod (1001) is rotatably connected to the stirring blade (4); the rotating rod (1001) is fixedly connected to a square block (1002); a second torsion spring (1003) is fixedly connected between the rotating rod (1001) and the stirring blade (4); the square block (1002) is slidably connected to a trapezoidal block (1004); a second spring (1005) is fixedly connected between the square block (1002) and the trapezoidal block (1004); A rectangular block (1006) is fixedly connected to the stirring blade (4), and the rectangular block (1006) is limitedly matched with the lower side surface of the trapezoidal block (1004); The extrusion plate (1007) is fixedly connected to the extrusion column (905), and the extrusion plate (1007) is extruded and matched with the trapezoidal block (1004).

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