Pressure-boosted microbial capillary crystalline type negative pressure anti-seepage device

Abstract

The invention discloses a pressure-boosting microbial capillary crystalline type negative pressure anti-seepage device, and relates to the technical field of wall surface repairing, the pressure-boosting microbial capillary crystalline type negative pressure anti-seepage device comprises a body mechanism, the body mechanism comprises a guide rail frame, a treatment mechanism is arranged on the front surface of the guide rail frame, and the treatment mechanism comprises a pressurizing unit which is located on the front surface of the guide rail frame; the pressurizing unit is used for supplementing a carbon source to the sprayed microorganism slurry; the treatment mechanism further comprises a curing unit located on the front face of the guide rail frame, the pressurizing unit and the curing unit are used in cooperation, and the curing unit is used for improving the biological activity of microorganisms. According to the device, after microbial mortar is sprayed through the spraying mechanism, the water seepage wall surface is locally covered through the pressurizing disc, so that a carbonization reactant source is supplemented in time, more sedimentary carbonate mineral crystals are generated, and the anti-seepage plugging effect of the water seepage wall surface is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of microbial anti-seepage treatment, and particularly relates to a pressure-assisted microbial seepage crystallization type negative pressure anti-seepage device. BACKGROUND

[0002] With the acceleration of urbanization, underground space is increasingly widely used, and the basement has become an indispensable part of the building structure. However, due to the change of underground water level, structure settlement, improper treatment of construction joints and other reasons, the basement wall seepage problem still occurs frequently, which not only affects the safety of the structure, but also causes the internal space to be damp and moldy, and further causes equipment corrosion and functional failure, and even seriously affects the durability and service life of the whole building.

[0003] At present, in the treatment of basement wall seepage, chemical injection sealing technology is widely used in engineering, such as polyurethane injection, epoxy resin injection and the like. These materials can rapidly solidify to form a water blocking layer in the cracks and gaps after injection, and have good short-term effect on sealing the seepage to a certain extent.

[0004] However, the traditional injection sealing technology still has the following main deficiencies: 1. Material shrinkage and aging: some injection materials are prone to aging and falling off in long-term water environment, resulting in sealing failure; 2. Poor environmental compatibility: most chemical injection materials are artificially synthesized, which has adverse effects on the environment and human health; 3. Limited sealing ability for microcracks: the viscosity of the injection material is high, and it is not easy to fully penetrate into the capillary-level cracks, which is prone to form "surface leakage"; 4. High cost of repeated maintenance: once the leakage recurs, the traditional injection treatment is difficult to be injected again or needs to be re-drilled, which increases the maintenance burden.

[0005] In view of the above problems, in recent years, the Microbially Induced Calcium Carbonate Precipitation (MICP) technology, as a new green grouting sealing means, has shown significant potential in the treatment of underground structure leakage. The MICP technology injects specific types of urea-producing microorganisms, induces calcium carbonate deposition in the cracks through metabolic action, and further combines with the gas carbon source to form a natural mineralized structure closely combined with the wall surface in the cracks, which can stably grow, fill and gradually realize self-healing sealing in the pores and microcracks, and has the following advantages: Sealing ability is meticulous, suitable for capillary-level cracks; Calcium carbonate deposition is an inorganic structure, which has better durability than most organic materials; Microbial activity has certain adaptive ability and certain self-repairing ability. The grouting liquid is a water-based system, which is environmentally friendly, non-toxic and has strong ecological compatibility.

[0006] Therefore, by means of technology complex, the MICP grouting technology is matched to form a corresponding wall seepage prevention treatment device, which is an important supplement to and even a replacement for the traditional glue injection technology, and has significant application prospect and urgent promotion in the field of anti-seepage reinforcement of building underground structures. SUMMARY

[0007] The application aims to provide a pressure-assisted microbial permeation crystallization type negative pressure seepage prevention device, which repairs the water-permeable wall surface by means of microbial-induced deposition of carbonate, and solves the water seepage problem of underground structure wall surface in a more environmentally friendly way.

[0008] The application is implemented by the following technical scheme: A pressure-assisted microbial permeation crystallization type negative pressure seepage prevention device, comprising a body mechanism, wherein the body mechanism comprises a guide rail frame, and the front surface of the guide rail frame is provided with a treatment mechanism; The treatment mechanism comprises a pressurizing unit, which is located on the front surface of the guide rail frame and is used for supplementing carbon source to the sprayed microbial slurry; The treatment mechanism further comprises a solidifying unit, which is located on the front surface of the guide rail frame and is used in cooperation with the pressurizing unit, and the solidifying unit is used for accelerating the rapid solidification of the microbial slurry; The inside of the guide rail frame is provided with a spraying mechanism, and the treatment mechanism is used in cooperation with the spraying mechanism, and the spraying mechanism is used for spraying the microbial slurry to the wall surface cracks. The process of the present application is as follows: first, the attached matter (such as paint layer, putty layer and cement mortar) on the surface layer of the water-permeable wall surface is scraped off by hand, the whole wall surface is sprayed with water, and after a period of time, the microbial mortar is sprayed by the spraying mechanism, and the repair layer formed after the microbial mortar adheres is ensured to be within the thickness range of 1.5 to 2 cm, after the microbial mortar is cemented and solidified, the repair layer is treated by the pressurizing unit along the fixed area in a way of gradually diffusing to the whole wall surface to accelerate the plugging of local cracks in the repair layer; and when encountering lower temperature environment in winter, especially lower temperature environment in the north, the solidifying unit can also perform heating treatment on it, so that the temperature of the repair layer is between 20 to 35 degrees, so as to shorten the forming period of the repair layer, and after the repair layer is completely dried and cured, the putty layer and the paint layer are manually coated, and the repair process of the water-permeable wall surface of the underground building structure is completed.

[0009] It should be pointed out that the biological mortar in the present application mainly comprises sand, microbial liquid, solidifying liquid, water and magnesium oxide powder, and the chemical reaction path is as follows: MgO + H2O → Mg(OH)2 (Brucite magnesium hydroxide); Mg(OH)2 + CO2 → xMgCO3·yMg(OH)2·zH2O (HMCs); Specific products include: MgCO3·3H2O; 4MgCO3·Mg(OH)2·4H2O; 4MgCO3·Mg(OH)2·5H2O; MICP relies on the urease secreted by microorganisms (such as Sporosarcina pasteurii) to hydrolyze urea: CO(NH2)2 + H2O → 2NH4⁺ + CO3²⁻; The resulting carbonate ions (CO3²⁻) react with Mg²⁺ or Ca²⁺ in the solution to form sedimentary carbonate minerals. The sedimentary carbonate minerals are deposited in pores, gaps or cracks, thereby playing a role in cementing, reinforcing and sealing the seepage wall surface.

[0010] The pressing unit comprises two upright columns, the back surface of each of the two upright columns is fixedly installed with two groups of electric push rods, the telescopic end of each group of electric push rods is fixedly installed with a connecting plate, the back surface of each connecting plate is fixedly connected with the outer surface of the guide rail frame, the front surface of the guide rail frame is fixedly installed with three groups of electric sliding rails, the inner part of one group of electric sliding rails is slidably connected with a moving frame, the inner part of the other group of electric sliding rails is slidably connected with a mounting frame, the front surface of the mounting frame is fixedly installed with a gas storage tank and a first air pump respectively, the input end of the first air pump penetrates into the inner part of the gas storage tank, the output end of the first air pump is fixedly communicated with a conveying pipe, the inner wall of the mounting frame is fixedly installed with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly installed with a connecting barrel, the side surface of the connecting barrel away from the mounting frame is fixedly installed with a rubber pad, the inner wall of the connecting barrel is fixedly installed with an electric cylinder, the telescopic end of the electric cylinder is fixedly installed with a pressing disc, one end of the conveying pipe away from the first air pump penetrates into the inner part of the pressing disc, and a plurality of gas outlets are formed in the back surface of the pressing disc. In the scheme, the pressing unit is the third step of the repair process, that is, the solidification effect of the enhanced microbial mortar layer (repair layer), the main purpose is to inject gas carbon source into the repair layer, and the gas carbon source is compressed and placed in the gas storage tank, and after the first air pump and the conveying pipe, the gas carbon source is released in the specified area through the pressing disc, which increases the deposition amount of the deposited carbonate mineral to a certain extent, reduces the probability of local gap in the repair layer, and ensures the plugging effect of the repair layer; and since the electric sliding rails and the electric push rods are arranged on the guide rail frame, the pressing disc can realize controllable and rapid movement in the X-axis and Y-axis directions, so as to shorten the repair period of the whole water seepage wall surface.

[0011] The inner wall of the guide rail frame is fixedly installed with two groups of pressure sensors. As preferred, since the gas carbon source in the pressing disc penetrates into the repair layer under pressure, the wall surface will exert a counter stress on the pressing disc, the guide rail frame is tightly attached to the wall surface, and the pressure between the guide rail frame and the wall surface is monitored in real time by using the pressure sensors, when the monitored value is lower than the set range, the electric push rod is elongated to increase the pressure of the guide rail frame on the wall surface, so as to ensure that the area covered by the pressing disc maintains its airtightness.

[0012] The side surface of the moving frame close to the guide rail frame is fixedly installed with a scanner. As preferred, after the microbial slurry is sprayed, the moving frame and the scanner are driven by the electric sliding rails to scan and identify the gradually formed repair layer, so as to judge the degree of cementation and solidification, facilitate the control of the flow and flow rate of the gas carbon source during subsequent pressure injection, and prevent the repair layer from being damaged again.

[0013] The curing unit comprises a disc arranged inside and coaxial with the pressing disc, the disc is provided with a plurality of infrared heating elements on the side wall opposite to the air outlet hole; and a cylinder is arranged on the outer circumferential wall of the pressing disc along the axis of the pressing disc, the output end of the cylinder is movably penetrated into the inside of the pressing disc and connected with the middle part of the disc. In the scheme, the disc can move together with the telescopic end of the cylinder, thereby changing the distance between the disc and the air outlet hole; that is, when repairing the water seepage point, the distance between the disc and the air outlet hole can be reduced, so that the infrared heating elements on the disc can quickly heat the repair layer, especially in the low-temperature environment in winter in the north and at the water seepage point (the thickness of the microbial mortar layer in this area is slightly larger than that of the remaining area of the wall surface).

[0014] It should be further pointed out that the curing unit in the scheme further comprises another implementation manner, which can further improve the heating uniformity in the repair layer area covered by the pressing disc; that is, the curing unit comprises a linear driver, the front surface of the linear driver is fixedly connected with the inner wall of the pressing disc, the telescopic end of the linear driver is fixedly installed with a rack plate, two rotating shafts are rotatably connected in the inside of the pressing disc, the outer surface of one of the rotating shafts is fixedly installed with a connecting gear, the bottom surface of the rack plate is engaged with the outer surface of the connecting gear, the outer surfaces of the two rotating shafts are both fixedly installed with connecting wheels, the inside of the two connecting wheels is jointly sleeved with a belt, the outer surfaces of the two rotating shafts are both fixedly installed with rotating discs, the side surfaces of the two rotating discs away from the rotating shafts are both rotatably connected with connecting columns, the inner wall of the pressing disc is fixedly installed with two concave frames, the inside of the two concave frames are both movably hinged with adjusting frames, the outer surfaces of the two adjusting frames are both slidably connected with the inner wall of the connecting columns, the outer surfaces of the two adjusting frames are both fixedly installed with infrared heating elements. The rotating disc drives the connecting column to rotate in the process of rotation, so that the connecting column drives the adjusting frame to reciprocate, thereby the adjusting frame drives the infrared heating elements to reciprocate, and the infrared heating elements irradiate and heat different positions of the crack, and the pressing disc is made of transparent material, the infrared heating elements can heat the repair layer in the low-temperature environment, maintain the activity of microbial strains, and accelerate the production speed of calcium carbonate and other sedimentary carbonate minerals.

[0015] The front surface of the rack plate is fixedly installed with a sliding block, the inner wall of the pressing disc is provided with a sliding groove, and the sliding block is slidably connected in the inside of the sliding groove. As preferred, the sliding block and the sliding groove are arranged to limit the movement track of the rack plate, thereby ensuring the stability of the movement of the rack plate.

[0016] The spraying mechanism comprises a connecting frame, the connecting frame is slidably connected to another set of electric sliding rails, two material boxes are fixedly installed on the inner wall of the connecting frame, a mud pump is fixedly installed on the front face of each material box, the input end of each mud pump penetrates into the interior of the material box, a connecting pipe is fixedly communicated with the output end of each mud pump, an air bag pipe is fixedly installed on the inner wall of the connecting pipe, an installation plate is fixedly installed on the right side face of the connecting frame, a second air pump is fixedly installed on the right side face of the installation plate, a four-way pipe is fixedly communicated with the output end of the second air pump, the four-way pipe penetrates into the interior of the air bag pipe at the end away from the second air pump, three electromagnetic valves are fixedly communicated with the outer surface of the four-way pipe, a placing frame is fixedly installed on the back face of the connecting frame, an adjusting plate is rotatably connected in the interior of the placing frame, a plurality of spray heads are fixedly installed on the inner wall of the adjusting plate, the end of each connecting pipe away from the mud pump penetrates into the interior of the spray head, and a rotating motor is arranged on the side of the placing frame away from the second air pump, and the output end of the rotating motor is fixedly connected with the side face of the adjusting plate close to the rotating motor.

[0017] Two fixing blocks are fixedly installed on the outer surface of the four-way pipe, and the side face of each fixing block close to the material box is fixedly connected with the front face of the material box. Preferably, the two fixing blocks are arranged to stably fix the four-way pipe, thereby avoiding the shaking of the four-way pipe and improving the stability of the four-way pipe.

[0018] A filter box is fixedly installed on the right side face of the installation plate, a dust screen is fixedly installed on the inner wall of the filter box, and the air inlet end of the second air pump penetrates into the interior of the filter box. Preferably, the dust screen is fixedly installed on the inner wall of the filter box, and the air inlet end of the second air pump penetrates into the interior of the filter box, so that the dust in the external air can be effectively filtered.

[0019] A protective shell is fixedly installed on the side face of the placing frame close to the rotating motor, and the inner bottom wall of the protective shell is fixedly connected with the bottom face of the rotating motor. Preferably, the protective shell is arranged to prevent the microbial mortar from splashing on the rotating motor during spraying, thereby avoiding the influence on the rotating motor.

[0020] Compared with the prior art, the present application has the following advantages and beneficial effects: 1、The present application is provided with a pressurizing unit, so that after the device sprays the microbial mortar, the water seepage wall surface is locally covered by the pressurizing disc, and then the gas carbon source in the gas tank is transported to the inside of the pressurizing disc, so as to supplement the carbon source of the microbial mortar layer which is not completely cemented, and more sedimentary carbonate mineral crystals are generated by the reaction of the gas carbon source and the microbial mortar, thereby avoiding the phenomenon that small gaps still exist in the repair layer, and further ensuring the anti-seepage plugging effect of the water seepage wall surface; 2、The present application is provided with a curing unit, so that during the pressurization of the microbial mortar, the microbial mortar is heated and cured by the infrared heating element, so as to ensure the biological activity of the microbial strain in a low temperature environment, thereby further increasing the generation amount of sedimentary carbonate, and further ensuring the repair plugging effect of the water seepage wall surface; 3、The present application is provided with a spraying mechanism, so that the device gradually increases the spraying amount of the microbial mortar by changing the inner diameter of the pipeline, thereby avoiding the phenomenon that the microbial mortar slides and falls in a large area due to a single large spraying amount. DETAILED DESCRIPTION

[0021] The drawings described herein are used to provide further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings: Figure 1 It is a structural schematic diagram of the whole structure of the present application; Figure 2 It is a structural schematic diagram of the rear view of the guide rail frame of the present application; Figure 3 It is a structural schematic diagram of the rear view of the moving frame of the present application; Figure 4 It is a structural schematic diagram of the mounting frame of the present application; Figure 5 It is a structural schematic diagram of the rear view of the mounting frame of the present application; Figure 6 It is a structural schematic diagram of the sectional view of the connecting cylinder of the present application; Figure 7 It is a structural schematic diagram of the sectional view of the pressurizing disc of the present application; Figure 8 It is a structural schematic diagram of the rear view of the pressurizing disc of the present application; Figure 9 It is a structural schematic diagram of the rear view of the rack plate of the present application; Figure 10 It is a structural schematic diagram of the connecting frame of the present application; Figure 11 It is a structural schematic diagram of the sectional view of the connecting pipe of the present application; Figure 12 It is a structural schematic diagram of the rear view of the filter box of the present application.

[0022] The reference signs represent: 1 - body mechanism, 11 - guide rail frame, 2 - processing mechanism, 21 - pressurizing unit, 2101 - stand, 2102 - electric push rod, 2103 - connecting plate, 2104 - pressure sensor, 2105 - electric sliding rail, 2106 - moving frame, 2107 - scanner, 2108 - mounting frame, 2109 - gas storage tank, 2110 - first gas pump, 2111 - conveying pipe, 2112 - electric telescopic rod, 2113 - connecting cylinder, 2114 - rubber pad, 2115 - electric cylinder, 2116 - pressurizing disc, 2117 - air outlet hole, 2118 - expansion bolt, 2119 - air inlet pipe, 2120 - box cover, 22 - curing unit, 2201 - linear driver, 2202 - rack plate, 2203 - rotating shaft, 2204 - connecting gear, 2205 - connecting wheel, 2206 - belt, 2207 - rotating disc, 2208 - connecting column, 2209 - concave frame, 2210 - adjusting frame, 2211 - infrared heating element, 2212 - sliding block, 2213 - sliding groove, 3 - spraying mechanism, 301 - connecting frame, 302 - material box, 303 - mud pump, 304 - connecting pipe, 305 - air bag pipe, 306 - mounting plate, 307 - second gas pump, 308 - four-way pipe, 309 - electromagnetic valve, 310 - placing frame, 311 - adjusting plate, 312 - spray head, 313 - rotating motor, 314 - fixed block, 315 - filter box, 316 - dustproof screen, 317 - protective shell. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with embodiments and drawings, the illustrative embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application. It should be noted that the present application has been in the actual research and development stage.

[0024] First of all, it should be noted that the "negative pressure waterproof" in the present scheme refers to a special waterproof technology, which is opposite to the traditional positive pressure waterproof. The traditional positive pressure waterproof is to perform waterproof treatment on the water-facing surface, and relies on the waterproof layer to resist the water pressure from the outside. The negative pressure waterproof is to perform waterproof treatment on the backwater surface, i.e. the water pressure acts from the outside of the structure to the inside, aiming to solve the leakage problem caused by water pressure penetration in the structure.

[0025] Embodiment 1: Please refer to Figures 1-7 The present embodiment includes a body mechanism 1, and the body mechanism 1 includes a guide rail frame 11, and the front surface of the guide rail frame 11 is provided with a processing mechanism 2; The processing mechanism 2 includes a pressurizing unit 21, and the pressurizing unit 21 is located on the front surface of the guide rail frame 11, and the pressurizing unit 21 is used for supplementing carbon source to the sprayed microbial slurry.

[0026] As a further limitation of the pressurizing unit 21 of the application, the pressurizing unit 21 comprises two upright columns 2101, both of which are located on the front face of the guide rail frame 11, and the back face of each of the two upright columns 2101 is fixedly installed with two groups of electric push rods 2102, the telescopic end of each group of electric push rods 2102 is fixedly installed with a connecting plate 2103, and the back face of each connecting plate 2103 is fixedly connected with the outer surface of the guide rail frame 11, and the inner wall of the guide rail frame 11 is fixedly installed with two groups of pressure sensors 2104; by fixing the upright columns 2101 on the ground and then pressing the guide rail frame 11 on the wall surface to be repaired by the electric push rods 2102, the wall surface cracks are repaired, the model of the pressure sensor 2104 is MR04-100, and the front face of the guide rail frame 11 is fixedly installed with three groups of electric sliding rails 2105, one group of which is slidably connected with a moving frame 2106 inside, the side face of the moving frame 2106 close to the guide rail frame 11 is fixedly installed with a scanner 2107, the position and shape of the wall surface cracks are scanned and identified by the scanner 2107, thereby facilitating the repair of the cracks, the other group of electric sliding rails 2105 is slidably connected with a mounting frame 2108 inside, and the front face of the mounting frame 2108 is fixedly installed with a gas storage tank 2109 and a first gas pump 2110 respectively, the input end of the first gas pump 2110 penetrates into the inside of the gas storage tank 2109, the inside of the gas storage tank 2109 is filled with a gas carbon source, the output end of the first gas pump 2110 is fixedly communicated with a delivery pipe 2111, the inner wall of the mounting frame 2108 is fixedly installed with an electric telescopic rod 2112, the telescopic end of the electric telescopic rod 2112 is fixedly installed with a connecting barrel 2113, the side face of the connecting barrel 2113 away from the mounting frame 2108 is fixedly installed with a rubber pad 2114, the inner wall of the connecting barrel 2113 is fixedly installed with an electric cylinder 2115, the telescopic end of the electric cylinder 2115 is fixedly installed with a pressurizing disc 2116, one end of the delivery pipe 2111 away from the first gas pump 2110 penetrates into the inside of the pressurizing disc 2116, and a plurality of gas outlets 2117 are formed in the back face of the pressurizing disc 2116; by setting the pressurizing unit 21, the water-permeable wall surface is locally covered by the pressurizing disc 2116 after the microbial mortar is sprayed, and then the gas carbon source in the gas storage tank 2109 is delivered into the inside of the pressurizing disc 2116, more calcium carbonate crystals are generated by the reaction of the gas carbon source and the microbial mortar, thereby plugging the tiny gaps still existing in the repair layer before complete cementation, and thus the repair effect of the water-permeable wall surface is ensured.

[0027] Please refer to Figure 1The inside of the two stand columns 2101 is provided with a plurality of expansion bolts 2118, the bottom end of each expansion bolt 2118 penetrates to the lower side of the stand column 2101, the stand column 2101 is fixed on the ground by the expansion bolts 2118, so that the stand column 2101 is prevented from moving by itself, thereby ensuring the stability of the stand column 2101.

[0028] Please refer to Figure 4 The upper surface of the gas storage tank 2109 is fixedly connected with an air inlet pipe 2119, the outer surface of the air inlet pipe 2119 is threadedly connected with a tank cover 2120, the installation of the air inlet pipe 2119 and the tank cover 2120 facilitates workers to fill gas carbon source gas into the inside of the gas storage tank 2109.

[0029] The specific implementation of the embodiment is that: in use, the worker first attaches the guide rail frame 11 to the wall surface that needs to be prevented from seepage and plugged, so that the crack part is located inside the guide rail frame 11, then the worker fixes the stand column 2101 on the ground, opens the electric push rod 2102 through the external remote control device, and pushes the guide rail frame 11 to tightly adhere to the wall surface by the power provided by the electric push rod 2102, and simultaneously, the pressure between the guide rail frame 11 and the wall surface is monitored in real time by the pressure sensor 2104, when the monitored value is lower than the set range, the electric push rod 2102 is elongated to increase the pressure of the guide rail frame 11 to the wall surface, then the mobile frame 2106 and the scanner 2107 are driven by the electric sliding rail 2105 to scan and identify the seepage wall surface, and the seepage point (to facilitate subsequent spraying of biological slurry and focus on curing operation) is obtained, then the microbial slurry is sprayed on the whole wall surface in sequence, when the microbial slurry spraying is completed, the mounting frame 2108 is moved to the initial spraying area (the area that first starts the deposition of calcium carbonate salt) by the electric sliding rail 2105, then the connecting cylinder 2113 is moved away from the mounting frame 2108 by the power provided by the electric telescopic rod 2112, so that the rubber pad 2114 tightly adheres to the wall surface, and the crack is located inside the connecting cylinder 2113, then the worker opens the first air pump 2110 and the electric cylinder 2115 through the external remote control device, the gas carbon source in the gas storage tank 2109 is delivered to the inside of the pressurizing disc 2116 through the delivery pipe 2111 by the power provided by the first air pump 2110, and simultaneously, the pressurizing disc 2116 covers the area by the power provided by the electric cylinder 2115, the pressure provided by the first air pump 2110, so as to provide the gas carbon source gas increment to the repaired layer, to ensure that the gas carbon source gas and the microbial slurry react to generate more deposited carbonate, thereby realizing the plugging of the small cracks on the repaired layer; according to the operation mode, the remaining repaired layer area is sequentially subjected to pressure treatment, to ensure that the repaired layer of the whole seepage wall surface has no small cracks, and the anti-seepage and plugging effect of the seepage wall surface is maximized.

[0030] Embodiment 2: Please refer toFigures 7-9 The present embodiment is directed to the technical problems mentioned in the background art, and the processing mechanism 2 further comprises a curing unit 22 located on the front side of the guide rail frame 11. The pressing unit 21 is used in cooperation with the curing unit 22, and the curing unit 22 is used to maintain the biological activity of the bacterial species in the microbial slurry in a low-temperature environment.

[0031] In the present embodiment, the curing unit 22 includes two forms according to different effects required in actual construction. One of them is that the curing unit 22 comprises a disc arranged inside the pressing disc 2116 and coaxial with it. A plurality of infrared heating elements 2211 are arranged on the side wall of the disc opposite to the air outlet hole 2117. A gas cylinder is arranged on the outer circumferential wall of the pressing disc 2116 along the axis of the pressing disc 2117. The output end of the gas cylinder is movably penetrated through the inside of the pressing disc 2116 and connected to the middle part of the disc. The output end of the gas cylinder is penetrated through the pressing disc 2116, and a movable seal is arranged in the penetration hole of the pressing disc 2116 to ensure the airtightness of the pressing disc 2116 when the carbon source is injected. At the same time, by controlling the extension and retraction of the gas cylinder, the disc moves together with the extension end of the gas cylinder to ensure that the distance between the disc and the air outlet hole 2117 can be controlled at any time. When repairing the water seepage point, the distance between the disc and the air outlet hole 2117 can be reduced, so that the infrared heating elements 2211 on the disc can quickly heat the repaired layer. Especially in the low-temperature environment of northern winter and at the water seepage point (the thickness of the microbial mortar layer in this area is slightly larger than that of the remaining area of the wall surface). When repairing the area other than the water seepage point, the distance between the disc and the air outlet hole 2117 needs to be increased to prevent the repaired layer from generating thermal stress concentration phenomenon due to continuous heating.

[0032] Secondly, the curing unit 22 comprises a linear driver 2201, the front face of the linear driver 2201 is fixedly connected with the inner wall of the pressing disc 2116, the telescopic end of the linear driver 2201 is fixedly installed with a rack plate 2202, the inside of the pressing disc 2116 is rotatably connected with two rotating shafts 2203, the outer surface of one of the rotating shafts 2203 is fixedly installed with a connecting gear 2204, the bottom surface of the rack plate 2202 is engaged with the outer surface of the connecting gear 2204, the outer surfaces of the two rotating shafts 2203 are both fixedly installed with a connecting wheel 2205, the interiors of the two connecting wheels 2205 are jointly sleeved with a belt 2206, the outer surfaces of the two rotating shafts 2203 are both fixedly installed with a rotating disc 2207, the side face, away from the rotating shaft 2203, of the two rotating discs 2207 are both rotatably connected with a connecting column 2208, the inner wall of the pressing disc 2116 is fixedly installed with two concave frames 2209, the interiors of the two concave frames 2209 are both movably hinged with an adjusting frame 2210, the outer surfaces of the two adjusting frames 2210 are both slidably connected with the inner wall of the connecting column 2208, the outer surfaces of the two adjusting frames 2210 are both fixedly installed with an infrared heating element 2211, the pressing disc 2116 is made of transparent material, so that the light emitted by the infrared heating element 2211 can penetrate through the pressing disc 2116, by arranging the curing unit 22, the microbial mortar is heated by the infrared heating element 2211 while the gas carbon source is supplemented, so as to maintain the biological activity of the microorganism, thereby further shortening the time for the microbial mortar to form the final repair layer after cementation, and improving the efficiency of the entire water permeation wall surface anti-seepage plugging.

[0033] Please refer to Figure 8 and Figure 9 The front face of the rack plate 2202 is fixedly installed with a sliding block 2212, the inner wall of the pressing disc 2116 is provided with a sliding groove 2213, the sliding block 2212 is slidably connected in the interior of the sliding groove 2213, the installation of the sliding block 2212 and the sliding groove 2213 plays a role in limiting the moving track of the rack plate 2202, thereby ensuring the stability of the movement of the rack plate 2202.

[0034] The specific implementation of the embodiment is that: in the process of pressurizing the microbial mortar by the pressurizing disc 2116, the worker opens the linear driver 2201 and the infrared heating element 2211 through the external remote control device, drives the rack plate 2202 to reciprocate by the power provided by the linear driver 2201, so that the rack plate 2202 drives the connecting gear 2204 engaged with the rack plate 2202 to rotate, the connecting gear 2204 drives the rotating shaft 2203 connected with the connecting gear 2204 to rotate, the rotating shaft 2203 drives another rotating shaft 2203 through the connection with the connecting wheel 2205 and the belt 2206, the rotating shaft 2203 drives the rotating disc 2207 to rotate, the rotating disc 2207 drives the connecting column 2208 to rotate in the process of rotating, the connecting column 2208 drives the adjusting frame 2210 to reciprocate, so that the adjusting frame 2210 drives the infrared heating element 2211 to reciprocate, and then the infrared heating element 2211 irradiates and heats different positions of the cracks, ensures the activity of the microbial strains, reduces the fluidity of the microbial mortar, further avoids the vertical protrusions (caused by the natural sliding of the microbial mortar due to gravity) on the repair layer, and ensures the repair effect of the water permeable wall surface.

[0035] Embodiment 3: see Figure 1 and Figures 10-12 The embodiment is aimed at the corresponding improvement of the technical problems mentioned in the background art, the inside of the guide rail frame 11 is provided with the spraying mechanism 3, the processing mechanism 2 is used in cooperation with the spraying mechanism 3, and the spraying mechanism 3 is used for spraying the microbial slurry on the water permeable wall surface.

[0036] As a further limitation of the spraying mechanism 3, the spraying mechanism 3 comprises a connecting frame 301 slidingly connected to the other set of electric sliding rails 2105, the inner wall of the connecting frame 301 is fixedly installed with two material boxes 302, the interiors of the two material boxes 302 are respectively filled with on-site mixed microbial mortar and putty paste, which are sprayed on the water seepage wall in turn, the front surface of each material box 302 is fixedly installed with a mortar pump 303, the input end of each mortar pump 303 penetrates into the interior of the material box 302, the output end of each mortar pump 303 is fixedly communicated with a connecting pipe 304, the inner wall of the connecting pipe 304 is fixedly installed with an air bag pipe 305, the right side surface of the connecting frame 301 is fixedly installed with a mounting plate 306, the right side surface of the mounting plate 306 is fixedly installed with a second air pump 307, the second air pump 307 is a bidirectional air pump, so that the flow direction of the gas can be changed, the output end of the second air pump 307 is fixedly communicated with a four-way pipe 308, one end of the four-way pipe 308 away from the second air pump 307 penetrates into the interior of the air bag pipe 305, the outer surface of the four-way pipe 308 is fixedly communicated with three electromagnetic valves 309, the back surface of the connecting frame 301 is fixedly installed with a placing frame 310, the interior of the placing frame 310 is rotatably connected with an adjusting plate 311, the inner wall of the adjusting plate 311 is fixedly installed with a plurality of spray heads 312, one end of each connecting pipe 304 away from the mortar pump 303 penetrates into the interior of the spray head 312, the side of the placing frame 310 away from the second air pump 307 is provided with a rotating motor 313, the output end of the rotating motor 313 is fixedly connected with the side surface of the adjusting plate 311 close to the rotating motor 313, by arranging the connecting pipe 304 and the air bag pipe 305 sleeved in the connecting pipe 304, the diameter of the pipeline is changed, so that the spraying amount of the microbial mortar is gradually increased, so that the phenomenon of large single spraying amount causing the microbial mortar to fall is avoided, and the good repair effect of the wall cracks is ensured.

[0037] Please refer to Figure 10 and Figure 11 , the outer surface of the four-way pipe 308 is fixedly installed with two fixed blocks 314, the side surface of each fixed block 314 close to the material box 302 is fixedly connected with the front surface of the material box 302, the installation of the fixed block 314 plays a role in stabilizing the four-way pipe 308, so that the phenomenon of shaking of the four-way pipe 308 is avoided, and the stability of the four-way pipe 308 is ensured.

[0038] Please refer to Figure 12 , the right side surface of the mounting plate 306 is fixedly installed with a filter box 315, the inner wall of the filter box 315 is fixedly installed with a dust screen 316, the air inlet end of the second air pump 307 penetrates into the interior of the filter box 315, the installation of the filter box 315 and the dust screen 316 plays a role in filtering the dust in the external gas, avoiding the dust entering the interior of the air bag pipe 305.

[0039] Please refer to Figure 10And Figure 12 The protective shell 317 is fixedly installed on one side of the placing rack 310 close to the rotating motor 313, the inner bottom wall of the protective shell 317 is fixedly connected with the bottom surface of the rotating motor 313, and the installation of the protective shell 317 avoids the splashing of the microbial mortar on the rotating motor 313 during the spraying process, thereby avoiding the influence on the rotating motor 313.

[0040] The specific implementation of the embodiment is that: in the process of spraying the microbial mortar, the slurry pump 303 is used to spray the microbial mortar in the internal tank 302 at the crack position, in the process of spraying, first, the power provided by the second air pump 307 is used to filter the external gas through the dust screen 316 and then deliver the gas to the inside of the air bag pipe 305, so that the air bag pipe 305 is inflated, thereby reducing the inner diameter of the connecting pipe 304, and then reducing the flow size of the microbial mortar, first, the crack is thinly coated, and then the inner diameter of the connecting pipe 304 is gradually increased, so that the microbial mortar is completely filled, and the decrease of the repair effect caused by the excessive single spraying amount of the microbial mortar is avoided; In the embodiment 1, it is mentioned that the corresponding scanner 2107 is provided, which can collect the water seepage point (mostly a larger gap on the wall surface), at this time, the area needs to be treated, that is, the concentration of the microbial mortar is replaced, that is, the tank storing the microbial mortar is refilled, so as to generate more sedimentary carbonate at the water seepage point in the same time, and the worker changes the electromagnetic valve 309 on the four-way pipe 308 to change the size of the inner diameter of the corresponding connecting pipe 304, thereby completing the spraying of the microbial mortar in the area; after the spraying of the microbial mortar is completed, the water seepage point after spraying is treated by the processing mechanism 2, thereby increasing the repair effect of the water seepage wall.

[0041] The specific implementation described above further details the purpose, technical solution and beneficial effects of the present application, and it should be understood that the above description is only a specific implementation of the present application and is not used to limit the protection scope of the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pressure-assisted microbial penetration crystallization type negative pressure anti-seepage device, comprising a main body (1), characterized in that: The main body mechanism (1) comprises a guide rail frame (11), and a processing mechanism (2) is provided on the front side of the guide rail frame (11); The processing mechanism (2) includes a pressurizing unit (21), the pressurizing unit (21) is located on the front side of the guide rail frame (11), and the pressurizing unit (21) is used to supplement the carbon source of the microbial slurry after spraying; The processing mechanism (2) further includes a solidification unit (22), the solidification unit (22) being located on the front side of the guide rail frame (11), the pressurizing unit (21) being used in conjunction with the solidification unit (22), and the solidification unit (22) being used to accelerate the rapid solidification of the microbial slurry; A spraying mechanism (3) is provided inside the guide rail frame (11), and the processing mechanism (2) is used in conjunction with the spraying mechanism (3). The spraying mechanism (3) is used to spray microbial slurry on cracks on the wall surface.

2. A pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 1, characterized in that: The pressurizing unit (21) comprises two columns (2101), both of which are located on the front of the guide rail frame (11), and two groups of electric push rods (2102) are fixedly installed on the back of the two columns (2101), and the telescopic end of each group of electric push rods (2102) is fixedly installed with a connecting plate (2103), and the back of each connecting plate (2103) is fixedly connected to the outer surface of the guide rail frame (11), and three groups of electric slide rails (2105) are fixedly installed on the front of the guide rail frame (11), wherein the interior of one group of electric slide rails (2105) is slidably connected to a moving frame (2106), and the interior of another group of electric slide rails (2105) is slidably connected to a mounting frame (2108), and the front of the mounting frame (2108) is fixedly installed with a gas tank (2109) and a first air pump (2110), respectively. The input end of an air pump (2110) passes through the interior of an air storage tank (2109); the output end of the first air pump (2110) is fixedly connected to a delivery pipe (2111); an electric telescopic rod (2112) is fixedly mounted on the inner wall of the mounting frame (2108); a connecting tube (2113) is fixedly mounted on the telescopic end of the electric telescopic rod (2112); a rubber pad (2114) is fixedly mounted on the side of the connecting tube (2113) away from the mounting frame (2108); an electric cylinder (2115) is fixedly mounted on the inner wall of the connecting tube (2113); a pressure plate (2116) is fixedly mounted on the telescopic end of the electric cylinder (2115); an end of the delivery pipe (2111) away from the first air pump (2110) passes through the interior of the pressure plate (2116); and a plurality of air outlet holes (2117) are provided on the back of the pressure plate (2116).

3. A pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 2, characterized in that: Two groups of pressure sensors (2104) are fixedly mounted on the inner wall of the guide rail frame (11).

4. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 2, characterized in that: A scanner (2107) is fixedly mounted on one side of the movable frame (2106) close to the guide rail frame (11).

5. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 2, characterized in that: The curing unit (22) includes a circular disc arranged inside the pressure disc (2116) and coaxial therewith, and a plurality of infrared heating elements (2211) are arranged on the side wall of the circular disc facing the air outlet (2117); and a cylinder is arranged on the outer circumferential wall of the pressure disc (2116) along the axis thereof, and the output end of the cylinder is movable through the interior of the pressure disc (2116) and then connected to the middle of the circular disc.

6. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 5, characterized in that: A slider (2212) is fixedly mounted on the front of the rack plate (2202), a slide groove (2213) is provided on the inner wall of the pressure plate (2116), and the slider (2212) is slidably connected inside the slide groove (2213).

7. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 2, characterized in that: The spraying mechanism (3) includes a connecting frame (301), the connecting frame (301) is slidably connected to another set of electric slide rails (2105), two material boxes (302) are fixedly installed on the inner wall of the connecting frame (301), a mud pump (303) is fixedly installed on the front of each material box (302), the input end of each mud pump (303) passes through the interior of the material box (302), the output end of each mud pump (303) is fixedly connected to a connecting pipe (304), an air bag tube (305) is fixedly installed on the inner wall of the connecting pipe (304), a mounting plate (306) is fixedly installed on the right side of the connecting frame (301), a second air pump (307) is fixedly installed on the right side of the mounting plate (306), and the output end of the second air pump (307) is fixedly connected to a four-way pipe (3 08), one end of the four-way tube (308) away from the second air pump (307) is penetrated into the interior of the air bag tube (305), the outer surface of the four-way tube (308) is fixedly connected with three solenoid valves (309), the back of the connecting frame (301) is fixedly installed with a placement frame (310), the interior of the placement frame (310) is rotatably connected with an adjustment plate (311), and the inner wall of the adjustment plate (311) is fixedly installed with a plurality of nozzles (312), and one end of each connecting tube (304) away from the mud pump (303) is penetrated into the interior of the nozzle (312), and a rotating motor (313) is provided on the side of the placement frame (310) away from the second air pump (307), and the output end of the rotating motor (313) is fixedly connected to a side of the adjustment plate (311) close to the rotating motor (313).

8. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 7, characterized in that: Two fixing blocks (314) are fixedly mounted on the outer surface of the four-way pipe (308), and the side surfaces of the two fixing blocks (314) close to the material box (302) are fixedly connected to the front surface of the material box (302).

9. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 7, characterized in that: A filter box (315) is fixedly mounted on the right side of the mounting plate (306), a dust screen (316) is fixedly mounted on the inner wall of the filter box (315), and an air inlet end of the second air pump (307) passes through the interior of the filter box (315).

10. The pressure-assisted microbial penetration crystallization negative pressure anti-seepage device according to claim 7, characterized in that: A protective shell (317) is fixedly mounted on a side of the placement rack (310) close to the rotating motor (313), and an inner bottom wall of the protective shell (317) is fixedly connected to the bottom surface of the rotating motor (313).

Images