A composite capsule preparation device based on concrete crack self-repair

Abstract

The present invention discloses a composite capsule preparation device based on concrete crack self-repair, which relates to the field of microbial repair, including a main body, two lifting cylinders are arranged on the top of the main body, and a limit guide rail is arranged on the outer end of each arc plate; a grouting pipe is arranged in the middle of the top of the main body, a liquid inlet pipe is arranged on the outer sleeve of the grouting pipe, a metal hose connected to the liquid inlet pipe is arranged in the cavity, and an infusion pipeline is arranged in the movable plate, and the grouting pipe extends vertically downward along the axis of the metal hose and is connected to the secondary branch of the infusion pipeline through a secondary plug connector, and the output end extension sections of the two lifting cylinders are respectively connected to the outer wall of the primary plug connector. The present invention improves the existing process, that is, firstly prepares the core, and then performs multi-layer composite coating on the core to complete the batch production of composite microbial capsules, and at the same time controls the stability of the microbial capsules when in use, and reduces the probability of inactivation of the microbial capsules during the preparation process.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a composite capsule preparation device based on concrete crack self-repair. Background Art

[0002] Concrete components are widely used in the field of civil engineering due to their high strength, easy material acquisition, strong moldability and good integrity. However, concrete is a typical porous and brittle material. Affected by adverse factors such as temperature changes, corrosion and aging, the internal components will inevitably breed cracks of various widths due to damage accumulation under long-term loads, reducing the mechanical properties of the components and threatening the durability of the structure; traditional concrete structure crack repair methods such as surface sealing, groove filling, grouting plugging, etc. have a series of problems such as high energy consumption, high cost, environmental unfriendliness, and even secondary damage to the building structure. The following concrete self-repair methods are disclosed in the prior art: shape memory alloy self-repair, hollow optical fiber and hollow fiber self-repair, microbial self-repair and microcapsule self-repair, among which microcapsule self-repair has been widely favored for its relatively excellent self-repair performance and relatively low economic cost. Microcapsule self-repair is to evenly disperse microcapsules in concrete. When concrete is subjected to external stress and produces microcracks, the capsule wall of the microcapsule corresponding to the crack will break, and its core material will be precipitated as a repair agent, thereby repairing the microcracks in the concrete. Based on the special characteristics of microcapsules that are a combination of microbial strains and inorganic wall materials, and compared with traditional medical capsules, the preparation of microcapsules requires multi-layer composite wrapping treatment including wall materials, nutrient matrix, solidifying liquid and microbial core, and a slight temperature change during the preparation process can easily lead to the inactivation of microorganisms, making the overall production process of microcapsules complicated and the preparation efficiency low. Summary of the invention

[0003] The present invention aims to provide a composite capsule preparation device based on concrete crack self-repair, which forms a microcapsule core by mixing microbial strains with gel, thereby ensuring that the activity of the microbial strains meets the subsequent repair requirements of building components.

[0004] The present invention is realized by the following technical scheme: comprising a body with a cavity provided inside, a forming assembly rotatably arranged in the cavity, two lifting cylinders provided on the top of the body, an arc-shaped movable plate provided horizontally in the cavity, a slide groove with a T-shaped longitudinal section provided on the outer circumferential walls at both ends of the movable plate, an output end of the lifting cylinder extending vertically downward and an arc-shaped plate provided on the extended section thereof, a limiting guide rail matched with the slide groove provided on the outer end of each arc-shaped plate, and both ends of the forming assembly are located in the two limiting guide rails;

[0005] A grouting pipe is provided in the middle of the top of the main body, a liquid inlet pipe is provided on the outer sleeve of the grouting pipe, and a metal hose connected with the liquid inlet pipe is provided in the cavity, a liquid infusion pipeline is provided in the movable plate, and a primary plug connector is provided at the end of the metal hose to match the liquid inlet end of the primary branch of the liquid infusion pipeline, the grouting pipe extends vertically downward along the axis of the metal hose and is connected with the secondary branch of the liquid infusion pipeline through the secondary plug connector, and the output end extension sections of the two lifting cylinders are respectively connected with the outer wall of the primary plug connector;

[0006] A connecting rod is provided on the outer wall of the primary plug connector, a driving cylinder is provided on the top of the body, and the output end of the driving cylinder passes through the body and is connected to the connecting rod; when in use, the molding component is docked with the liquid outlet end of the infusion pipeline to realize the preparation and molding of the composite capsule core.

[0007] In view of the complicated process of preparing microbial capsules in the prior art, the applicant has improved the existing process, that is, first preparing a core, and then performing multi-layer composite coating on the core to complete the mass production of composite microbial capsules, while controlling the stability of the microbial capsules during use and reducing the probability of inactivation of the microbial capsules during the preparation process; the specific operation steps are as follows: pre-preparing the solution required for the core, the main components of the core in the technical scheme include calcium chloride solution, sodium alginate solution and Bacillus pasteurianus, utilizing the reaction of calcium chloride solution and sodium alginate solution to produce gel, and mixing Bacillus pasteurianus at the same time, after the gel is formed and fixed, performing a drainage operation, separating the metal hose, the grouting tube and the infusion pipeline, and then completing the mass molding of the core after the centrifugal operation of the molding assembly for mass production of composite microbial capsules. Among them, the technical solution does not require special environmental conditions and can be carried out at room temperature; when used specifically, Bacillus pasteurianus and sodium alginate solution are mixed into a mixed liquid of a preset concentration, which is injected into the secondary branch of the infusion pipeline through a grouting pipe, and then flows into the molding component under the opening and closing control of the solenoid valve of the secondary branch. At the same time, the calcium chloride solution is injected into the primary branch of the infusion pipeline through the liquid inlet pipe, and then enters the molding component under the opening and closing control of the solenoid valve of the primary branch to achieve the mutual reaction between the calcium chloride solution and the sodium alginate solution.

[0008] The forming assembly includes a sleeve, an adjustment motor and a forming cylinder. The sleeve is horizontally arranged in the middle of the body. A left blocking plate and a right blocking plate are respectively arranged on both sides of the sleeve for blocking the open end of the sleeve and are both circular. A rotating cylinder is arranged on the side walls opposite to the left blocking plate and the right blocking plate. The rotating cylinder is rotatably arranged on the inner wall of the body. The adjustment motor is horizontally arranged on the outer wall of the body and its output end moves through the outer wall of the body and the middle of the left blocking plate in sequence and is fixedly connected to the inner wall of the sleeve.

[0009] The forming cylinder is arranged horizontally, and the inner circumferential walls at both ends are connected to the outer circumferential walls of the left blocking plate and the right blocking plate respectively. A plurality of primary forming grooves are opened on the outer circumferential wall of the forming cylinder along the axial direction thereof, and a plurality of outer sleeves are arranged on the inner arc surface of the movable plate. A lower pressing block corresponding to the primary forming groove is connected to the end of each outer sleeve, and a secondary forming groove is opened on the lower pressing block. The primary forming groove and the secondary forming groove are combined to form a forming cavity.

[0010] An inner sleeve is arranged inside the outer sleeve, and the outer sleeve is connected to the liquid outlet end of the primary branch of the infusion pipeline, and the inner sleeve is connected to the liquid outlet end of the secondary branch of the infusion pipeline, and the secondary branch of the infusion pipeline is placed inside the primary branch;

[0011] A plurality of through holes are opened on the inner circumferential wall of the forming cylinder along the axial direction thereof, the through holes are connected with the primary forming groove, a blocking block is slidably arranged in each through hole, and an L-shaped flow channel is opened inside the blocking block;

[0012] An adjusting mechanism is provided in the molding cylinder to drive the blocking block to perform linear motion along the axial direction of the through hole, and the blocking block is driven to realize the communication between the inside of the molding cavity and the inside of the molding cylinder through the L-shaped flow channel.

[0013] Furthermore, the molding assembly, as the core component of the present technical solution, can be fitted and separated with the movable plate, and its main component is a molding cylinder, a plurality of primary molding grooves are provided on the outer wall of the molding cylinder, the primary molding grooves are composed of a circular groove and a bottom groove arranged at the bottom of the circular groove and having a semi-elliptical shape, and the end face of the lower pressing block on the inner wall of the movable plate is provided with a secondary molding groove which is also semi-elliptical and corresponds to the primary molding groove. When the movable plate is fitted with the molding cylinder, the lower pressing block enters into the circular groove, and the bottom groove and the secondary molding groove are combined to form an elliptical molding cavity for forming a gel produced by a solution reaction, and then the movable plate and the molding cylinder are centrifuged. Operation, so that the core in the molding cavity is elliptical, and preferably the core is elliptical, the purpose is to increase the fit between the core and the outer layer during the subsequent multi-layer composite wrapping, and at the same time facilitate the microbial capsule to increase the space occupation in the crack in actual use. At the same time, compared with the spherical microbial capsule, the microorganisms in the core of the microbial capsule in the technical solution can quickly contact with the nutrient matrix when the local outer layer is broken, and then realize rapid reproduction to produce calcium carbonate for repair operation, that is, the elliptical microbial capsule can shorten the release time of the microbial strains in the core to a certain extent;

[0014] The infusion pipeline is a set-type structure, that is, the same as the grouting pipe and the liquid inlet pipe, which includes a primary branch and a secondary branch. The primary branch is set outside the secondary branch. The injection condition is that the injection amount of calcium chloride solution is greater than the injection amount of sodium alginate and microbial strains; after the solution in the molding cavity is injected, the output end of the driving cylinder retracts to drive the metal hose, the grouting pipe and the infusion pipeline to separate, and gel is generated in the molding cavity. After a period of rest, the drainage operation is performed, that is, the liquid outlet end of the L-shaped flow channel is separated from the through hole through the adjustment mechanism, and the liquid other than the gel enters through the liquid inlet end of the L-shaped flow channel, and then flows into the molding cylinder from its liquid outlet end, and then is discharged through the drainage pipe. The adjustment mechanism is operated again to reset the blocking block. At this time, the movable plate and the molding cylinder become a whole and perform circular motion together under the drive of the adjustment motor, that is, the generated gel begins to be centrifugally dehydrated.

[0015] The adjustment mechanism includes a push-pull cylinder, a follower plate, and a plurality of guide rods arranged on the follower plate. The push-pull cylinder is arranged on the outer wall of the body and its output end is rotatably connected to the outer wall of the follower plate. The follower plate is placed in a rotating cylinder on the outer wall of the right blocking plate, and the ends of the plurality of guide rods movably penetrate the right blocking plate and extend in a direction away from the follower plate.

[0016] A plurality of wedge blocks are arranged on the guide rod, a support block is arranged on the outer wall of each blocking block, and a guide groove is opened at the bottom of the support block along the axial direction of the guide rod. The push-pull cylinder pushes the guide rod to make horizontal reciprocating motion while driving the wedge block to contact or separate from the bottom of the guide groove, so as to realize the connection or isolation between the L-shaped flow channel and the inside of the forming cylinder.

[0017] Furthermore, the main function of the adjusting mechanism is to drive the sealing block to move linearly along the axis of the through hole, and the output end of the push-pull cylinder is extended and retracted, which can drive the main part of the guide rod to make linear reciprocating motion in the annulus between the forming cylinder and the sleeve. At the same time, the contact position change between the wedge block and the bottom of the guide groove can drive the change of the height of the sealing block in the vertical direction, thereby realizing the opening or closing of the liquid outlet end of the L-shaped flow channel.

[0018] A guide block connected to the wedge block is provided on the guide rod, and a universal ball is rotatably provided at the bottom of the guide groove; in the initial state, the end face of the support block facing the guide rod is close to but not in contact with the outer circumferential wall of the guide rod, and the inclined surface of the wedge block keeps in contact with the universal ball. Preferably, a guide block that is rectangular and matches the guide groove is provided on the guide rod, the wedge block is in the guide groove and keeps in contact with the universal ball, and when the position of the blocking block needs to be adjusted, the push-pull cylinder drives the guide rod to move until the guide block contacts the universal ball, the spacing between the blocking block and the outer wall of the guide rod becomes smaller, and the liquid outlet end of the L-shaped flow channel moves out of the through hole, and at the same time, the distance between the end face of the support block facing the guide rod and the outer circumferential wall of the guide rod is sufficient to meet the movement requirements of the blocking block, and can ensure that a part of the guide block is always in the guide groove.

[0019] The position-limiting guide rail is composed of an upper semicircular guide ring and a lower semicircular guide ring whose ends are mutually clamped; in the initial state, the upper semicircular guide ring and the lower semicircular guide ring are separated, and the upper semicircular guide ring cooperates with the slide groove; when in use, the lifting cylinder drives the movable plate to move downward, and the upper semicircular guide ring and the lower semicircular guide ring are clamped to form a circular ring-shaped position-limiting guide rail, and the movable plate is connected to the forming cylinder as a whole and performs circular motion along the circumference of the position-limiting guide rail. Preferably, the position-limiting guide rail is divided into two semicircular rings that can be clamped, so that the rotation of the movable plate can be consistent with that of the forming cylinder, and the upper semicircular guide ring is connected to the arc plate, and the lower semicircular guide ring can be connected to the outer wall of the forming cylinder. After the two are spliced, they can provide stable support and guidance for the movable plate, thereby improving the movement consistency of the movable plate and the forming cylinder.

[0020] Electromagnets are provided on the outer walls of the two rotating cylinders, and suction protrusions cooperating with the electromagnets are provided on the inner walls at both ends of the movable plate. Preferably, the cooperation between the electromagnets and the suction protrusions can ensure that there is no relative movement between the movable plate and the forming cylinder, thereby reducing the probability of damage to the parts that have a docking relationship between the infusion pipeline and the forming cylinder.

[0021] A conveyor plate is provided in the lower section of the body, both ends of which are movable through the outer wall of the body and extend outward, and baffles are provided on both sides of the conveyor plate. Preferably, the baffles and the conveyor plate are used together to continuously collect the cores that fall out of the primary forming groove after the movable plate is separated.

[0022] There are multiple filter holes on the conveying plate, a protective plate is fixed under the conveying plate, a driving motor is provided at the bottom of the protective plate, a fan blade is provided on the output end of the driving motor, and exhaust pipes are provided on the two side walls of the lower section of the main body; the driving motor can drive the fan blades to suck the airflow above the conveying plate and discharge it outward along the exhaust pipe. Preferably, the technical solution sets a protective plate under the conveying plate, and the upper surface of the protective plate is a smooth curved surface convex toward the conveying plate. When the driving motor is started, the fan blades begin to extract the gas inside the main body, and finally discharge it outward through the exhaust pipe. By accelerating the air flow, the discharge of residual liquid can be accelerated to a certain extent, that is, the surface of the formed core is ensured to be relatively dry.

[0023] A water collecting tank is arranged on the inner wall of the bottom of the main body. Preferably, the water collecting tank arranged at the bottom of the main body can collect and process the residual liquid generated in the middle and upper part of the main body.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] 1. The present invention improves the existing process, that is, firstly preparing the core, and then performing multi-layer composite coating on the core to complete the batch production of composite microbial capsules, while controlling the stability of the microbial capsules during use, and reducing the probability of inactivation of the microbial capsules during the preparation process;

[0026] 2. In the present invention, when the mixed solution and calcium chloride solution begin to be injected, the lifting cylinder drives the arc plate and the movable plate to move downward, and the driving cylinder drives the connecting rod to move downward. The lower section of the grouting pipe is also a foldable metal pipe, and the metal hose and the grouting pipe are respectively connected to the infusion pipeline through the primary plug connector and the secondary plug connector, and electromagnetic valves are provided on the metal hose, the grouting pipe, the primary branch and the secondary branch to achieve quantitative injection of the solution into the molding component, and at the same time ensure the uniformity of the quality of the cores prepared in batches in the molding component;

[0027] 3. Compared with the spherical microbial capsule, the microorganisms in the core of the microbial capsule of the present invention can quickly contact with the nutrient matrix when the outer layer is partially broken, and then quickly reproduce to produce calcium carbonate for repair operations. That is, the elliptical microbial capsule can shorten the release time of the microbial strains in the core to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 for Figure 1The enlarged view of point A in the middle;

[0031] Figure 3 Schematic diagram of the structure of the wedge block.

[0032] Marks and corresponding parts names in the attached drawings:

[0033] 1-body, 2-lifting cylinder, 3-arc plate, 4-grouting pipe, 5-liquid inlet pipe, 6-metal hose, 7-movable plate, 8-liquid infusion pipeline, 9-primary plug connector, 10-electromagnet, 11-right blocking plate, 12-adjusting motor, 13-forming cylinder, 14-baffle, 15-exhaust pipe, 16-water collecting tank, 17-fan blades, 18-drive motor, 19-protective plate, 20-transmission Plate, 21-push-pull cylinder, 22-follower plate, 23-guide rod, 24-circular groove, 25-blocking block, 26-primary molding groove, 27-sleeve, 28-drain pipe, 29-left blocking plate, 30-down pressure block, 31-secondary molding groove, 32-limiting guide rail, 33-guide block, 34-wedge block, 35-guide groove, 36-universal ball, 37-support block, 38-L-type flow channel. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example 1

[0036] like Figures 1 to 3 As shown, this embodiment includes a body 1 with a cavity formed inside, a forming component is rotatably arranged in the cavity, two lifting cylinders 2 are arranged on the top of the body 1, an arc-shaped movable plate 7 is horizontally arranged in the cavity, and a slide groove with a T-shaped longitudinal section is respectively opened on the outer circumferential wall at both ends of the movable plate 7, the output end of the lifting cylinder 2 extends vertically downward and an arc-shaped plate 3 is arranged on its extended section, and a limiting guide rail 32 cooperating with the slide groove is arranged on the outer end of each arc-shaped plate 3, and the two ends of the forming component are located in the two limiting guide rails 32;

[0037] A grouting pipe 4 is provided in the middle of the top of the body 1, a liquid inlet pipe 5 is provided on the outer sleeve of the grouting pipe 4, and a metal hose 6 connected with the liquid inlet pipe 5 is provided in the cavity, a liquid infusion pipeline 8 is provided in the movable plate 7, and a primary plug connector 9 is provided at the end of the metal hose 6 to match the liquid inlet end of the primary branch of the liquid infusion pipeline 8. The grouting pipe 4 extends vertically downward along the axis of the metal hose 6 and is connected with the secondary branch of the liquid infusion pipeline 8 through the secondary plug connector, and the output end extension sections of the two lifting cylinders 2 are respectively connected to the outer wall of the primary plug connector 9;

[0038] A connecting rod is provided on the outer wall of the primary plug connector 9, and a driving cylinder is provided on the top of the main body 1. The output end of the driving cylinder passes through the main body 1 and is connected to the connecting rod; when in use, the molding component is docked with the liquid outlet end of the infusion pipeline 8 to realize the preparation and molding of the composite capsule core.

[0039] When this embodiment is specifically implemented, Bacillus pasteurianus and sodium alginate solution are mixed into a mixed liquid of a preset concentration, which is injected into the secondary branch of the infusion pipeline 8 through the grouting pipe 4, and then flows into the molding component under the opening and closing control of the solenoid valve of the secondary branch. At the same time, the calcium chloride solution is injected into the primary branch of the infusion pipeline 8 through the liquid inlet pipe 5, and then enters the molding component under the opening and closing control of the solenoid valve of the primary branch to achieve the mutual reaction between the calcium chloride solution and the sodium alginate solution. The cavity in the molding component for the reaction of calcium chloride solution and sodium alginate solution is open, and the movable plate 7 is independent of the molding component at the initial stage of use. The metal hose 6 and the grouting pipe 4 are also not connected to the infusion pipeline 8, which facilitates the molded core to separate from the molding component; when the mixed liquid and calcium chloride solution begin to be injected, the lifting cylinder 2 drives the arc plate 3 and the movable plate 7 to move downward, and the driving cylinder drives the connecting rod to move downward. The lower section of the grouting pipe 4 is also a foldable metal pipe, and the metal hose 6 and the grouting pipe 4 are connected to the infusion pipeline 8 through the primary plug connector 9 and the secondary plug connector respectively, and solenoid valves are provided on the metal hose 6, the grouting pipe 4, the primary branch and the secondary branch to realize the quantitative injection of solution into the molding component, while ensuring the uniformity of the quality of the cores prepared in batches in the molding component. At the same time, the limit guide rail 32 adopts a splicing structure. On the premise of ensuring that the arc plate 3 and the movable plate 7 can normally move in a straight line in the vertical direction, it can also ensure that the movable plate 7 becomes a whole with the molding component during centrifugal operation, ensuring that the cavity in the molding component for the reaction of the calcium chloride solution and the sodium alginate solution is in a relatively closed state.

[0040] The core component forming assembly in this embodiment includes a sleeve 27, an adjustment motor 12 and a forming cylinder 13. The sleeve 27 is horizontally arranged in the middle of the main body 1. A left blocking plate 29 and a right blocking plate 11 are respectively arranged on both sides of the sleeve 27 for blocking the open end of the sleeve 27. The left blocking plate 29 and the right blocking plate 11 are both circular. A rotating cylinder is arranged on the side walls opposite to the left blocking plate 29 and the right blocking plate 11. The rotating cylinder is rotatably arranged on the inner wall of the main body 1. The adjustment motor 12 is horizontally arranged on the outer wall of the main body 1 and its output end is movable through the outer wall of the main body 1 and the middle of the left blocking plate 29 in turn, and then fixedly connected to the inner wall of the sleeve 27.

[0041] The forming cylinder 13 is arranged horizontally and the inner circumferential walls at both ends thereof are connected to the outer circumferential walls of the left blocking plate 29 and the right blocking plate 11 respectively. A plurality of primary forming grooves 26 are opened on the outer circumferential wall of the forming cylinder 13 along the axial direction thereof. A plurality of outer sleeves are arranged on the inner arc surface of the movable plate 7. A lower pressing block 30 corresponding to the primary forming groove 26 is connected to the end of each outer sleeve. A secondary forming groove 31 is opened on the lower pressing block 30. The primary forming groove 26 and the secondary forming groove 31 are combined to form a forming cavity.

[0042] An inner sleeve is arranged inside the outer sleeve, and the outer sleeve is connected to the liquid outlet end of the primary branch of the infusion pipeline 8, and the inner sleeve is connected to the liquid outlet end of the secondary branch of the infusion pipeline 8, and the secondary branch of the infusion pipeline 8 is placed inside the primary branch;

[0043] A plurality of through holes are opened on the inner circumferential wall of the forming cylinder 13 along the axial direction thereof, the through holes are connected to the primary forming groove 26, a blocking block 25 is slidably arranged in each through hole, and an L-shaped flow channel 38 is opened inside the blocking block 25;

[0044] An adjusting mechanism is provided in the molding tube 13 to drive the blocking block 25 to perform linear motion along the axial direction of the through hole, and the blocking block 25 is driven to achieve communication between the interior of the molding cavity and the interior of the molding tube 13 via the L-shaped flow channel 38 .

[0045] The molding assembly is the core component of the present technical solution, and can be attached to and separated from the movable plate 7. The main component is a molding cylinder 13. A plurality of primary molding grooves 26 are provided on the outer wall of the molding cylinder 13. The primary molding groove 26 is composed of a circular groove 24 and a bottom groove arranged at the bottom of the circular groove 24 and having a semi-elliptical shape. The end face of the lower pressing block 30 on the inner side wall of the movable plate 7 is provided with a secondary molding groove 31 which is also semi-elliptical and corresponds to the primary molding groove 26. When the movable plate 7 is attached to the molding cylinder 13, the lower pressing block 30 enters the circular groove 24, and the bottom groove and the secondary molding groove 31 are combined to form an elliptical molding cavity for forming a gel produced by a solution reaction, and then Through the centrifugal operation of the movable plate 7 and the forming cylinder 13, the core in the forming cavity is elliptical, and preferably shaped into an elliptical core, the purpose of which is to increase the fit between the core and the outer layer during the subsequent multi-layer composite wrapping, and at the same time facilitate the microbial capsule to increase the space occupation in the crack in actual use. At the same time, compared with the spherical microbial capsule, the microorganisms in the core of the microbial capsule in the technical solution can quickly contact with the nutrient matrix when the local outer layer is broken, and then realize rapid reproduction to produce calcium carbonate for repair operation, that is, the elliptical microbial capsule can shorten the release time of the microbial strains in the core to a certain extent;

[0046] The infusion pipeline 8 is a sleeve-type structure, that is, the same as the grouting pipe 4 and the liquid inlet pipe 5, which includes a primary branch and a secondary branch. The primary branch is sleeved outside the secondary branch. The injection condition is that the injection amount of the calcium chloride solution is greater than the injection amount of the sodium alginate and the microbial strains. After the solution in the molding cavity is injected, the output end of the driving cylinder retracts to drive the metal hose 6, the grouting pipe 4 and the infusion pipeline 8 to separate, and gel is generated in the molding cavity. After a period of rest, the drainage operation is performed, that is, the liquid outlet end of the L-shaped flow channel 38 is separated from the through hole through the regulating mechanism, and the liquid other than the gel enters through the liquid inlet end of the L-shaped flow channel 38 and then flows from its liquid outlet end to the molding cylinder 13, and then is discharged through the drainage pipe 28. The regulating mechanism is operated again to reset the blocking block 25. At this time, the movable plate 7 and the molding cylinder 13 become a whole and perform a circular motion together under the drive of the adjustment motor 12, that is, the centrifugal dehydration of the generated gel begins. It should be noted that due to the characteristics of the gel, the rotation of the adjustment motor 12 is not high-speed, but a medium or low speed suitable for the characteristics of the gel is adopted. When there is still solution in the molding chamber after the centrifugation is completed, the adjustment mechanism can be used again to drain the liquid; after the core is dehydrated, the movable plate 7 returns to its initial position, and the lifting cylinder 2 drives the arc plate 3 and the movable plate 7 to move upward, so that the movable plate 7 is separated from the molding cylinder 13. At this time, the primary molding groove 26 is reopened, and the molding cylinder 13 is rotated again, so that the core is separated from the primary molding groove 26 and falls to the bottom of the main body 1, and finally is collected and processed.

[0047] Preferably, the cooperation between the electromagnet 10 and the suction protrusion can ensure that there is no relative movement between the movable plate 7 and the forming cylinder 13, thereby reducing the probability of damage to the parts that are in a docking relationship between the infusion pipeline 8 and the forming cylinder 13.

[0048] Preferably, the limiting guide rail 32 is divided into two semicircular rings that can be clamped together, so that the rotation of the movable plate 7 can be consistent with the forming tube 13, and the upper semicircular guide ring is connected to the arc plate 3, and the lower semicircular guide ring can be connected to the outer wall of the forming tube 13. After splicing, the two can provide stable support and guidance for the movable plate 7, thereby improving the movement consistency of the movable plate 7 and the forming tube 13.

[0049] Preferably, the primary plug connector 9 and the secondary plug connector are components of the same type, the only difference being that they have different sizes and models due to their different installation positions; the primary plug connector 9 and the secondary plug connector are both quick plug connectors commonly used on the market, whose main function is to achieve quick connection and quick disassembly between pipe fittings, and are also connection components well known to those skilled in the art.

[0050] Example 2

[0051] like Figures 1 to 3As shown, this embodiment is based on the embodiment 1, and the regulating mechanism includes a push-pull cylinder 21, a follower plate 22 and a plurality of guide rods 23 arranged on the follower plate 22. The push-pull cylinder 21 is arranged on the outer wall of the main body 1 and its output end is rotatably connected to the outer wall of the follower plate 22. The follower plate 22 is placed in a rotating cylinder on the outer wall of the right blocking plate 11, and the ends of the plurality of guide rods 23 movably penetrate the right blocking plate 11 and extend in a direction away from the follower plate 22; a plurality of wedge blocks 34 are arranged on the guide rod 23, and a support block 37 is arranged on the outer wall of each blocking block 25, and a guide groove 35 is opened at the bottom of the support block 37 along the axial direction of the guide rod 23. The push-pull cylinder 21 pushes the guide rod 23 to make a horizontal reciprocating motion, and at the same time drives the wedge block 34 to contact or separate from the bottom of the guide groove 35, so as to realize the connection or isolation between the L-shaped flow channel 38 and the inside of the forming cylinder 13.

[0052] The main function of the regulating mechanism is to drive the blocking block 25 to perform linear motion along the axis of the through hole, and the output end of the push-pull cylinder 21 is extended and retracted, which can drive the main part of the guide rod 23 to perform linear reciprocating motion in the annulus between the forming cylinder 13 and the sleeve 27. At the same time, the contact position change between the wedge block 34 and the bottom of the guide groove 35 can be used to drive the change of the high position of the blocking block 25 in the vertical direction, thereby realizing the opening or closing of the liquid outlet end of the L-shaped flow channel 38; it should be noted that, in view of the small particle size of the core, the size of the microbial capsule is also small, and the corresponding molding component size is also small, that is, the movement of the blocking block 25 in the vertical direction and the movement of the wedge block 34 in the horizontal direction are both small displacements. Similarly, when injecting the solution, there is no need to consider that a large amount of seepage will occur in the contact part between the blocking block 25 and the through hole, because after the fine processing of the through hole and the blocking block 25, the gap between the two is relatively small, and it is well known to those skilled in the art that the reaction between the calcium chloride solution and the sodium alginate solution is very rapid, and generally they will react to produce gel after contact.

[0053] Preferably, since the forming cylinder 13 will be in a rotating state during centrifugal operation, it is necessary to ensure that the other rotating parts keep pace with it to ensure the stability of the blocking block 25 during rotation; for this purpose, a rectangular guide block 33 matching the guide groove 35 is set on the guide rod 23, and the wedge block 34 is in the guide groove 35 and keeps contact with the universal ball 36. When the position of the blocking block 25 needs to be adjusted, the push-pull cylinder 21 drives the guide rod 23 to move until the guide block 33 contacts the universal ball 36, and the distance between the blocking block 25 and the outer wall of the guide rod 23 becomes smaller, and the liquid outlet end of the L-shaped flow channel 38 moves out of the through hole. At the same time, the distance between the end face of the support block 37 facing the guide rod 23 and the outer circumferential wall of the guide rod 23 is sufficient to meet the movement requirements of the blocking block 25, and can ensure that a part of the guide block 33 is always in the guide groove 35. It should be noted that the longitudinal cross-section of the wedge block 34 is a right-angled trapezoid and the end face where the upper base is located is connected to the guide block 33, and the side surface where the wedge block 34 is located is connected to the outer wall of the guide rod 23, that is, the wedge block 34 and the guide block 33 form two planes for the universal ball 36 to move in the forward projection of the blocking block 25, so as to realize the movement and adjustment of the blocking block 25.

[0054] Preferably, the baffle plate 14 and the conveying plate 20 are used together to continuously collect the cores dropped from the primary forming groove 26 after the movable plate 7 is separated.

[0055] Preferably, after the core is prepared, there will be a small amount of residual liquid in the primary molding groove 26. After the core falls onto the conveying plate 20, this part of the liquid will cause the cores that have been dehydrated to stick to each other. Therefore, the technical solution sets a protective plate 19 under the conveying plate 20, and the upper surface of the protective plate 19 is a smooth curved surface that convexes toward the conveying plate 20. The driving motor 18 is started, so that the fan blades 17 begin to extract the gas inside the main body 1, and finally discharge it outward through the exhaust pipe 15. By accelerating the air and residual liquid to pass through the filter holes, the discharge of the residual liquid can be accelerated to a certain extent, that is, the surface of the formed core is ensured to be relatively dry.

[0056] Preferably, the water collecting tank 16 disposed at the bottom of the main body 1 can collect and process the residual liquid generated in the upper part of the main body 1 .

[0057] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A composite capsule preparation device based on concrete crack self-repair, comprising a body (1) with a cavity formed inside, characterized in that: A molding component is rotatably arranged in the cavity, two lifting cylinders (2) are arranged on the top of the body (1), an arc-shaped movable plate (7) is horizontally arranged in the cavity, and a slide groove with a T-shaped longitudinal cross section is respectively opened on the outer circumferential wall at both ends of the movable plate (7), the output end of the lifting cylinder (2) extends vertically downward and an arc-shaped plate (3) is arranged on its extended section, and a limiting guide rail (32) cooperating with the slide groove is arranged on the outer end of each arc-shaped plate (3), and the two ends of the molding component are located in the two limiting guide rails (32); A grouting pipe (4) is provided in the middle of the top of the body (1), a liquid inlet pipe (5) is provided on the outer sleeve of the grouting pipe (4), and a metal hose (6) connected to the liquid inlet pipe (5) is provided in the cavity, a liquid infusion pipeline (8) is provided in the movable plate (7), and a primary plug connector (9) is provided at the end of the metal hose (6) to match the liquid inlet end of the primary branch of the liquid infusion pipeline (8), the grouting pipe (4) extends vertically downward along the axis of the metal hose (6) and is connected to the secondary branch of the liquid infusion pipeline (8) through the secondary plug connector, and the output end extension sections of the two lifting cylinders (2) are respectively connected to the outer wall of the primary plug connector (9); A connecting rod is provided on the outer wall of the primary plug connector (9), a driving cylinder is provided on the top of the body (1), and the output end of the driving cylinder passes through the body (1) and is connected to the connecting rod; when in use, the molding component is docked with the liquid outlet end of the infusion pipeline (8) to achieve the preparation and molding of the composite capsule core; The molding assembly comprises a sleeve (27), an adjustment motor (12) and a molding cylinder (13); the sleeve (27) is horizontally arranged in the middle of the body (1); a left sealing plate (29) and a right sealing plate (11) are respectively arranged on both sides of the sleeve (27) for sealing the open end of the sleeve (27); a rotating cylinder is arranged on the side walls opposite to the left sealing plate (29) and the right sealing plate (11); the rotating cylinder is rotatably arranged on the inner wall of the body (1); the adjustment motor (12) is horizontally arranged on the outer wall of the body (1) and its output end is movably passed through the outer wall of the body (1) and the middle of the left sealing plate (29) in sequence and then fixedly connected to the inner wall of the sleeve (27); The forming cylinder (13) is arranged horizontally and the inner circumferential walls at both ends thereof are respectively connected to the outer circumferential walls of the left blocking plate (29) and the right blocking plate (11). A plurality of primary forming grooves (26) are opened on the outer circumferential wall of the forming cylinder (13) along the axial direction thereof. A plurality of outer sleeves are arranged on the inner arc surface of the movable plate (7). A lower pressing block (30) corresponding to the primary forming groove (26) is connected to the end of each outer sleeve. A secondary forming groove (31) is opened on the lower pressing block (30). The primary forming groove (26) and the secondary forming groove (31) are combined to form a forming cavity. An inner sleeve is arranged inside the outer sleeve, and the outer sleeve is connected to the liquid outlet end of the primary branch of the infusion pipeline (8), and the inner sleeve is connected to the liquid outlet end of the secondary branch of the infusion pipeline (8), and the secondary branch of the infusion pipeline (8) is arranged inside the primary branch; A plurality of through holes are opened on the inner circumferential wall of the forming cylinder (13) along the axial direction thereof, the through holes being connected to the primary forming groove (26), a blocking block (25) being slidably arranged in each through hole, and an L-shaped flow channel (38) being opened inside the blocking block (25); An adjusting mechanism is provided in the molding cylinder (13) for driving the blocking block (25) to perform linear motion along the axial direction of the through hole, and the blocking block (25) is driven to achieve communication between the interior of the molding cavity and the interior of the molding cylinder (13) via the L-shaped flow channel (38).

2. The composite capsule preparation device based on concrete crack self-repair according to claim 1 is characterized in that: The adjustment mechanism comprises a push-pull cylinder (21), a follower plate (22), and a plurality of guide rods (23) arranged on the follower plate (22); the push-pull cylinder (21) is arranged on the outer wall of the body (1) and its output end is rotatably connected to the outer wall of the follower plate (22); the follower plate (22) is placed in a rotating cylinder on the outer wall of the right blocking plate (11), and the ends of the plurality of guide rods (23) movably penetrate the right blocking plate (11) and then extend in a direction away from the follower plate (22); A plurality of wedge blocks (34) are provided on the guide rod (23), a support block (37) is provided on the outer wall of each blocking block (25), and a guide groove (35) is provided at the bottom of the support block (37) along the axial direction of the guide rod (23). The push-pull cylinder (21) pushes the guide rod (23) to perform horizontal reciprocating motion and drives the wedge block (34) to contact or separate from the bottom of the guide groove (35), so as to realize the connection or isolation between the L-shaped flow channel (38) and the inside of the forming cylinder (13).

3. The composite capsule preparation device based on concrete crack self-repair according to claim 2 is characterized in that: A guide block (33) connected to a wedge block (34) is provided on the guide rod (23), and a universal ball (36) is rotatably provided at the bottom of the guide groove (35); in an initial state, the end surface of the support block (37) facing the guide rod (23) is close to but not in contact with the outer circumferential wall of the guide rod (23), and the inclined surface of the wedge block (34) is in contact with the universal ball (36).

4. The composite capsule preparation device based on concrete crack self-repair according to claim 1 is characterized in that: The limiting guide rail (32) is composed of an upper semicircular guide ring and a lower semicircular guide ring whose ends are mutually clamped; in an initial state, the upper semicircular guide ring and the lower semicircular guide ring are separated, and the upper semicircular guide ring cooperates with the slide groove; when in use, the lifting cylinder (2) drives the movable plate (7) to move downward, and the upper semicircular guide ring and the lower semicircular guide ring are clamped to form a circular ring-shaped limiting guide rail (32), and the movable plate (7) is connected to the forming cylinder (13) as a whole and performs a circular motion along the circumference of the limiting guide rail (32).

5. The composite capsule preparation device based on concrete crack self-repairing according to claim 4 is characterized in that: Electromagnets (10) are provided on the outer walls of the two rotating cylinders, and suction protrusions cooperating with the electromagnets (10) are provided on the inner walls at both ends of the movable plate (7).

6. The composite capsule preparation device based on concrete crack self-repair according to claim 1 is characterized in that: A conveying plate (20) is provided in the lower section inside the body (1), both ends of the conveying plate (20) movably penetrate the outer wall of the body (1) and extend outwards, and baffles (14) are provided on both sides of the conveying plate (20).

7. The composite capsule preparation device based on concrete crack self-repairing according to claim 6 is characterized in that: A plurality of filter holes are formed on the conveying plate (20), a protective plate (19) is fixed below the conveying plate (20), a driving motor (18) is provided at the bottom of the protective plate (19), a fan blade (17) is provided at the output end of the driving motor (18), and exhaust pipes (15) are provided on both side walls of the lower section of the body (1); the driving motor (18) can drive the fan blade (17) to suck the airflow above the conveying plate (20) and discharge it outward along the exhaust pipe (15).

8. A composite capsule preparation device based on concrete crack self-repairing according to any one of claims 1 to 7, characterized in that: A water collecting tank (16) is provided on the inner wall of the bottom of the body (1).

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