A microbial mineralized cemented bio-brick production device

Abstract

The present invention discloses a device for producing microbial mineralized cemented bio-bricks, including a molding box, a plurality of transverse partitions dividing the interior of the molding box into a plurality of cavities, the output end of the oil cylinder movably passes through the cross arm and then extends downward, and a cover plate is provided on the extension section of the output end of the oil cylinder; a plurality of drainage grooves are provided at the bottom of each cavity, and a plurality of baffles are provided on the lower surface of the cover plate, and when the oil cylinder drives the cover plate to move down to the bottom of the baffle plate and contact the drainage grooves, the cavity can be divided into a plurality of molding cavities; the upper end of each baffle plate is connected to the lower surface of the cover plate, and a discharging mechanism and a spraying mechanism are respectively provided between the two connecting plates. The present invention uses slag, solid construction waste particles, etc. as raw materials, and generates composite materials for construction through shaping and consolidation of the molding cavity, that is, it only needs to lay and spray the raw material particles and the two-phase solution for inducing the production of calcium carbonate in the shaping area, abandoning the traditional clay mining and brick making process of many chemical reagents, and truly realizing friendliness to the ecological environment.

Description

Technical Field

[0001] The invention relates to the technical field of microbial mineralization and cementation, and in particular to a device for producing microbial mineralization and cementation bio-bricks. Background Art

[0002] With the rapid growth of my country's population, the demand for infrastructure is increasing, and the urgency of construction land is becoming more and more serious. However, the resources of construction land are very limited, which requires the reinforcement and improvement of land that cannot meet the needs of the project. Traditional soil improvement methods often require the addition of a series of chemical components that may pollute the environment, causing water pollution and even threatening human health, which has accelerated the pace of research and development of environmentally friendly soil improvement technologies by many institutions. As we all know, there are a large number of microorganisms in nature, which often have a subtle influence on foundations, geology and underground engineering. In traditional engineering, people often pay more attention to macroscopic structures, lack of knowledge of microorganisms and lack of cases, thus ignoring the impact of microorganisms on engineering, and also wasting their huge potential value. The microbial induced calcium carbonate precipitation (MICP) method uses the metabolism of some bacteria in nature to produce urease that can hydrolyze urea. The hydrolyzed urea further produces carbonate ions that combine with free metal cations to form calcium carbonate crystals with particle cementation, thereby achieving ecological solidification and improvement of poor soil. This method is also called biomineralization soil consolidation method. Since the microbial induced calcium carbonate precipitation method has a simple mechanism, is fast and efficient, easy to control, and has good environmental weather resistance, if this technology is applied to building composite materials, that is, through the microbial mineralization and cementation of granular media to produce composite base materials such as bricks and blocks required for building houses, it is bound to have broad application prospects and good promotion value.

[0003] At present, solid bricks or hollow bricks made of cement or sintered shale using traditional technology are still widely used in my country's infrastructure construction projects. Since traditional brick materials often sacrifice natural resources and the ecological environment in each link of material collection and processing, it is bound to pose a serious threat to our home planet in the long run. Summary of the invention

[0004] The purpose of the present invention is to provide a microbial mineralization cementation bio-brick production device to solve the above problems.

[0005] The present invention is achieved through the following technical solutions:

[0006] A microbial mineralized cemented bio-brick production device comprises a molding box with an open upper end, a plurality of parallel and spaced transverse partitions dividing the interior of the molding box into a plurality of cavities, support arms are respectively provided on the two side walls of the molding box, the upper ends of the two support arms are connected by a cross arm, an oil cylinder is inverted on the cross arm, the output end of the oil cylinder movably passes through the cross arm and then extends downward, and a cover plate matching the open end of the molding box is provided on the extension section of the output end of the oil cylinder;

[0007] A plurality of drainage grooves are arranged at equal intervals at the bottom of each cavity, and a plurality of baffles matching the drainage grooves are arranged on the lower surface of the cover plate, and when the oil cylinder drives the cover plate to move down to the bottom of the baffle plate and contact the drainage grooves, the cavity can be divided into a plurality of molding cavities of the same size;

[0008] The upper end of each baffle is connected to the lower surface of the cover plate by two spaced-apart connecting plates, and a discharge mechanism and two groups of spray mechanisms are respectively provided between the two connecting plates along the long side direction of the molding box; the discharge mechanism is used to lay raw materials in multiple molding cavities in turn, and the two groups of spray mechanisms are used to spray two-phase solutions on the laid raw material layers in multiple molding cavities in turn. The preparation of traditional red bricks not only requires a large amount of clay raw materials, but also requires firing, which will cause great harm to the ecological environment; while the currently popular unfired bricks require the use of a large amount of chemical raw materials such as cement and additives, which will also cause pollution to the environment. Through long-term research, the inventors have used the principle of microbial induced calcium carbonate precipitation, that is, bacteria secrete urease to hydrolyze urea into carbonate ions and ammonium ions (environmental pH value increases), which react with calcium ions added from the outside in an alkaline environment to generate calcium carbonate precipitation with cementing function, and then use gravel, solid construction waste particles, etc. as cementing objects (i.e. raw materials), and then use gravel, solid construction waste particles, etc. as the main raw materials to produce calcium carbonate precipitation, and then generate target bricks after shaping and consolidation. The use strength and wear resistance of the target bricks are almost the same as those of traditional red bricks or unfired bricks, or even better; that is, only the raw material particles and the two-phase solution (bacterial solution and solidifying solution) used to induce the production of calcium carbonate need to be laid and sprayed in the shaping area, abandoning the traditional clay mining and the use of many chemical reagents, and truly achieving friendliness to the ecological environment.

[0009] Based on the above background, this technical solution designs an equipment system for bio-brick production, and its specific working principle is as follows:

[0010] The forming box is used for shaping the bio-bricks; the cover plate can reciprocate in a straight line in the vertical direction under the drive of the oil cylinder, and is used as a bearing platform for the discharging mechanism and the spraying mechanism; the discharging mechanism lays particles in the forming cavity in layers, and the number of particles is multiple, so that particles can be injected into multiple forming cavities in each cavity in sequence at the same time; the spraying mechanism is set as a double group of spray heads, one group of spray heads can spray the forming cavity with bacterial liquid in advance before the discharging mechanism discharges the materials, and the other group of spray heads can spray the solidifying liquid on the bottom particle layer in the forming cavity; multiple horizontal partitions first place the forming box The interior of the box is divided into a plurality of long strip-shaped cavities, and after the plurality of baffles on the cover plate are moved down to the corresponding drainage grooves, each cavity can be divided again into a plurality of molding cavities of predetermined sizes. The steps of forming the bio-brick in each molding cavity include: 1. The first group of spraying mechanisms sequentially sprays the plurality of molding cavities for the first time to ensure that there is a certain amount of bacterial liquid at the bottom of the molding cavity, so that the bacterial liquid can be mixed with the raw material when the discharging mechanism first lays the raw material layer in the molding cavity; 2. The plurality of discharging mechanisms start to lay particles in the first row of molding cavities in the molding box, and then lay particles in the second row of molding cavities; In the process of laying the second row of forming cavities, the second group of spraying mechanisms starts to spray the solidifying liquid on the first row of forming cavities, ensuring that the solidifying liquid completely permeates the particle layer laid in the forming cavity, thereby increasing the solidifying effect after the bacterial liquid and the solidifying liquid in the particle layer react; 3. After the bacterial liquid spraying, particle laying and solidifying liquid spraying of the remaining rows of forming cavities are completed step by step, the spraying mechanism is reset, and steps 1 and 2 are repeated after a period of rest until all the forming cavities are filled with particles and two-phase solution step by step; 4. Screed plates are manually set one by one on the upper section of the forming cavity to achieve the bio-brick The surface is leveled, and then it is left to stand for two to three days to ensure that all particles are formed under the bonding effect of calcium carbonate. The oil cylinder is started to drive the cover plate to move up, so that the baffle and the horizontal partition are out of contact, and the collection of the formed bio-bricks is completed, that is, the preparation process of this cycle is ended; and the technical solution uses a PLC control system to control the start and stop of the oil cylinder, the discharge of the discharge mechanism, and the spraying frequency of the liquid, etc., to achieve automated operation of compounding gravel, clay or solid waste particles from buildings with calcium carbonate precipitates, and finally form an environmentally friendly new type of building composite material.

[0011] The discharging mechanism includes two conveying pipes and two feeding hoses, one end of each conveying pipe is closed and the other end is open, the feeding hose is connected to the open end of the conveying pipe, a rotating shaft of the same length is provided inside the conveying pipe, an auger blade is provided on the rotating shaft, and one end of the rotating shaft away from the feeding hose movably passes through the closed end of the conveying pipe and is connected to a connecting rod, and a driven gear is provided on the connecting rod;

[0012] A plurality of follower cylinders are sleeved on the outer wall of each conveying pipe, and clamps are respectively provided on the outer walls at both ends of the follower cylinders, and two clamps located at two follower cylinders and adjacent to each other are hinged through a telescopic rod; the connecting rod is connected through a tapered cylinder and a clamp close to it, and a discharge hole with the same length as the molding cavity is opened on the outer wall of the follower cylinder along the axial direction thereof, and two primary discharge holes and two secondary discharge holes are respectively opened on the outer wall of the bottom of the conveying pipe wrapped by the plurality of follower cylinders, and the axial lengths of the primary discharge holes and the secondary discharge holes are less than or equal to the axial length of the discharge holes;

[0013] A driving gear is provided on the output end of the driving motor fixed to the upper surface of the cover plate through a shock-absorbing bracket, and the driving gear cooperates with the driven gears of the multiple discharging mechanisms through a transmission chain;

[0014] In the initial state, on the same conveying pipe, multiple discharge holes are located on the upper outer wall of the follower cylinder and are rotationally symmetrically distributed along the axis of the conveying pipe; when working, after the driving motor is started, its output end drives the driving gear, the transmission chain and multiple driven gears to drive the multiple discharge holes to lay the raw materials into the molding cavity in sequence along the moving direction of the spray mechanism.

[0015] Furthermore, in the technical solution, multiple discharging mechanisms work synchronously, that is, the particle laying in multiple molding cavities in the same column is realized synchronously, and by analogy, multiple columns of molding cavities complete the particle laying step by step, and at the same time, the corresponding spraying mechanisms spray the bacterial liquid and the solidifying liquid alternately in sequence;

[0016] The specific working principle is as follows:

[0017] The two feed hoses have a certain contraction ability and can move with the cover plate. The upper end of the feed hose is connected to the external particle feed bin, and the lower end of the feed hose is connected to the conveying pipe. The rotating shaft drives the auger blade to rotate, thereby driving the particles to move in the conveying pipe. At the same time, the drive motor is started, driving the active gear, the transmission chain and the driven gear on the connecting rod to cooperate, and then driving the first follower cylinder close to the driven gear to rotate synchronously until the discharge holes on the outer wall of the follower cylinder are aligned with the primary discharge hole and the secondary discharge hole respectively, and the particles are discharged one after another. Move toward the forming cavity along the discharge channel formed by the discharge hole and the primary discharge hole and the discharge channel formed by the discharge hole and the secondary discharge hole respectively, so as to complete the particle laying of the first row of forming cavities; wherein, two adjacent clamps respectively located on two follower cylinders are hinged through a telescopic rod, that is, after the first follower cylinder rotates a certain angle, it will pull the telescopic rod in the contracted state to expand, and when the telescopic rod expands to the limit position, it will drive the second follower cylinder to rotate, that is, start to lay particles in the second row of forming cavities, and so on, until the particle laying of all forming cavities is completed. Furthermore, the telescopic amount of the telescopic rod can satisfy the two adjacent discharge holes to successively lay particles for two adjacent forming cavities; and the multiple discharge holes corresponding to the same row of forming cavities are rotationally symmetrically distributed in the initial state, and remain disconnected from the primary discharge holes and the secondary discharge holes. During operation, the forming cavities in the first column lay particles while the telescopic rod extends. After the extension of the telescopic rod reaches its limit, the first follower cylinder closest to the driving motor drives the second follower cylinder to rotate. At this time, the particle laying of the first follower cylinder is completed and its discharge hole is re-shifted with the primary discharge hole and the secondary discharge hole, and the discharge hole of the second follower cylinder begins to be aligned with the corresponding primary discharge hole and the secondary discharge hole.

[0018] A major arc groove of the same length as the primary discharge hole is opened on the inner circumferential wall of each follower cylinder along the circumference thereof, and the major arc groove is not connected to the discharge hole. Preferably, before and after the discharge hole is aligned with the primary discharge hole or the secondary discharge hole, the primary discharge hole and the secondary discharge hole at the bottom of the conveying tube are filled with particles. When the follower cylinder and the conveying tube rotate relative to each other, the particles are easily stuck in the gap between the two. In this regard, the technical solution has a major arc groove opened on the inner circumferential wall of the follower cylinder, and the major arc groove is not connected to the discharge hole, that is, when the follower cylinder and the conveying tube move relative to each other, the particles that are not discharged from the discharge hole will be temporarily stored in the major arc groove, and a reflux hole is opened at the top of the conveying tube. After the discharge hole is aligned with the primary discharge hole and the secondary discharge hole in turn to complete the laying of the particles in the molding cavity, the particles temporarily stored in the major arc groove will return to the conveying tube along the reflux hole to reduce the probability of jamming between the follower cylinder and the conveying tube.

[0019] Within the range of the same follower cylinder, two secondary discharge holes are arranged side by side between two primary discharge holes, and the width of the primary discharge hole is greater than the width of the secondary discharge hole. Preferably, the width of the secondary discharge hole is smaller than the width of the primary discharge hole, and a particle layer with a wavy longitudinal cross section will appear in the same molding cavity. When the spraying mechanism sprays the two-phase solution, it will directly act on the wave crest position on the upper surface of the particle layer, thereby achieving a certain flat push effect, and forming more tiny grooves on the particle layer, which is convenient for the uniform penetration of the two-phase solution, and at the same time, it is convenient to increase the contact area between the two adjacent particle layers during laying, and reduce the probability of faults in the bio-bricks in the molding cavity.

[0020] The spray mechanism comprises an adjusting motor, a screw and two nuts matched with the screw and spaced apart. The adjusting motor is arranged on the cover plate and its output end is connected with the screw. A slide groove is provided on the lower surface of the cover plate. A slide rod matched with the slide groove is provided on the upper end of each nut. A suspension rod is provided on the lower end of each nut. A primary spray pipe perpendicular to the screw is provided on one suspension rod, and a secondary spray pipe perpendicular to the screw is provided on the other suspension rod. The screw is located between the two conveying pipes.

[0021] The side walls of the primary spray pipe and the secondary spray pipe are both provided with two-phase liquid inlet pipes communicating with the inside thereof. The primary spray pipe and the secondary spray pipe are both parallel to the horizontal plane and located above the baffle. Furthermore, as the core component of the present technical solution, when spraying bacterial liquid and solidifying liquid on multiple molding cavities in the same cavity, the spraying mechanism is set to two groups, wherein the first group of spraying mechanisms will spray twice in the same molding cavity, which is carried out by the primary spray pipe and the secondary spray pipe in turn; before the first particle laying of the first row of molding cavities, the primary spray pipe first performs an initial spray on the bottom of the molding cavity to provide a small amount of liquid environment for the subsequent first particle laying, and after the first particle laying of the first row of molding cavities is completed, the secondary spray pipe begins to perform a secondary spray on the upper surface of the first particle layer in the molding cavity to ensure that the particle layer at the bottom of the molding cavity is soaked, so as to maximize the consolidation effect after the subsequent reaction with the solidifying liquid; after the first particle laying is completed in all molding cavities, the primary spray pipe and the secondary spray pipe are reset, and then the second particle layer laying of the molding cavity is started. At this time, the spray amount of bacterial liquid in the primary spray pipe can be reduced, and the second particle layer is supplemented by the secondary spray pipe. The second group of spraying mechanisms is used for spraying the solidifying liquid and is spaced apart from the first group of spraying mechanisms. The solidifying liquid is sprayed after the first layer of particles is laid in the first row of molding cavities. That is, the primary spray pipe and the secondary spray pipe in the second group of spraying mechanisms also spray the solidifying liquid twice in the same molding cavity. The first spray is a small amount, and the second spray is a supplementary spray.

[0022] A plurality of primary spray holes are opened in the lower section of the outer circumferential wall of the primary spray pipe along the axial direction, and the axis of the primary spray holes intersects with the axis of the primary spray pipe; a plurality of secondary spray holes are opened in the lower section of the outer circumferential wall of the secondary spray pipe along the axial direction, and the axis of the secondary spray holes intersects with the axis of the secondary spray pipe; the primary spray holes and the secondary spray holes are arranged back to back. Preferably, the axis of the primary spray hole intersects with the axis of the primary spray pipe, and the axis of the secondary spray hole intersects with the axis of the secondary spray pipe, which means that the primary spray hole and the secondary spray hole are both arranged at an angle, and when spraying the two-phase solution, they are not sprayed vertically downward to prevent the impact on the surface of the particle layer from forming too many depressions and avoid the particles from agglomerating in the forming cavity; and the primary spray hole and the secondary spray hole are arranged back to back, which can ensure that the secondary spray hole can supplement the spraying of the area not covered by the primary spray hole.

[0023] The angles between the axis of the primary spray hole and the horizontal plane, and between the axis of the secondary spray hole and the horizontal plane are both acute angles; and the perpendicular midline of the line connecting the axis of the primary spray pipe and the axis of the secondary spray pipe is taken as the axis of symmetry, and the primary spray hole and the secondary spray hole are symmetrically distributed along the axis of symmetry. Preferably, the axes of the primary spray hole and the secondary spray hole, which are arranged in reverse, form an acute angle between the horizontal axes, so that the primary spray hole and the secondary spray hole are respectively arranged between the bottom and the middle of the outer wall, and this area can ensure that the sprayed two-phase solution moves along a suitable trajectory to contact the particle layer, avoiding the two-phase solution from being sprayed too fast or the maximum spray stroke being too large.

[0024] A flexible sealing strip of the same length and semicircular longitudinal cross-section is provided on the lower end face of each baffle plate, the semicircular arc surface of the sealing strip faces the drainage groove, and the width of the drainage groove is smaller than the diameter of the sealing strip; when in use, after multiple baffle plates move down into the cavity to form multiple forming cavities, the upper end face of the sealing strip is flush with the bottom inner wall of the forming cavity. Preferably, after the solidification reaction between the particles and the two-phase solution occurs, liquid residue will be generated in the molding box, and the purpose of setting the drainage trough is to accelerate the discharge of such residual liquid; the purpose of setting the baffle is to ensure the cross-flow of particles and two-phase solution in adjacent molding cavities, and flexible seals are provided at the contact parts between the baffle and the inner wall of the molding box and between the baffle and the transverse partition, and a flexible sealing strip with a semicircular longitudinal cross-section is provided on the lower end face of the baffle. After the baffle moves down into the drainage trough, the upper end face of the sealing strip is flush with the bottom inner wall of the molding cavity. The width of the drainage trough is smaller than the diameter of the sealing strip, that is, the sealing strip can produce a certain deformation, and this deformation amount can be directly used to seal the notch of the drainage trough in combination with the seals on the two end faces.

[0025] In two adjacent cavities, after the drainage groove in one cavity is connected to the drainage groove in the other cavity, multiple drainage channels parallel to its short sides are formed on the inner wall at the bottom of the molding box; any end of the drainage channel penetrates the side wall of the molding box to form an external discharge port, and a plug is provided on the external discharge port. Preferably, after the lower end of the baffle moves into the drainage groove, the drainage groove can not only form a certain limiting effect on the baffle, but also seals can be provided on the two end faces and the lower end face of the baffle before the bio-brick is formed to prevent the two-phase solution from overflowing; after the bio-brick is formed, the baffle is out of contact with the drainage groove, and the multiple drainage channels distributed at the bottom of the molding box can directly discharge the residual liquid or a small amount of particles.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] 1. The present invention utilizes the principle of microbial induced calcium carbonate precipitation, that is, urease is secreted by bacteria to hydrolyze urea into carbonate ions and ammonium ions (environmental pH value increases), which react with calcium ions added from the outside in an alkaline environment to generate calcium carbonate precipitation with a cementing function, and then gravel, solid construction waste particles, etc. are used as cementing objects (i.e. raw materials), and target bricks are generated after shaping and consolidation. The use strength and wear resistance of the target bricks are almost the same as those of traditional red bricks or unfired bricks, or even better; that is, it is only necessary to lay and spray the raw material particles and the two-phase solution (bacterial solution and solidifying solution) used to induce the production of calcium carbonate in the shaping area, abandoning the traditional clay mining and the use of many chemical reagents, and truly achieving friendliness to the ecological environment;

[0028] 2. In the present invention, the two-phase solution spraying step and the particle laying step are performed alternately, which can ensure that the two-phase solution is evenly distributed in the particle layer, improve the uniformity of bonding between the bio-brick particles, and thus improve the overall strength and wear resistance of the brick body and avoid the occurrence of defects such as hollow bricks or honeycomb surfaces caused by uneven bonding; and the active coordination between the baffle and the transverse partition, the formation and release of the forming cavity, also facilitate the collection of bio-bricks; after completing the preparation of the same batch of bio-bricks, the residual liquid will be concentrated in the drainage trough, which is convenient for operators to collect and process uniformly;

[0029] 3. In the present invention, the width of the secondary discharge hole is smaller than the width of the secondary discharge hole, and a particle layer with a wavy longitudinal cross-section will appear in the same molding cavity. When the spraying mechanism sprays the two-phase solution, it will directly act on the wave crest position on the upper surface of the particle layer, thereby achieving a certain flat push effect and forming more tiny grooves on the particle layer, which is convenient for the uniform penetration of the two-phase solution. At the same time, it is convenient to increase the contact area between the two adjacent particle layers during laying, and reduce the probability of faults in the bio-bricks in the molding cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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:

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a top view of the molding box;

[0033] Figure 3 is a side view of the present invention;

[0034] Figure 4 It is a longitudinal sectional view of the discharging mechanism;

[0035] Figure 5 This is the effect picture of the first discharge;

[0036] Figure 6 It is a structural schematic diagram of the discharging mechanism;

[0037] Figure 7 It is a structural schematic diagram of the shotcrete mechanism.

[0038] The reference numerals represent: 1-cover plate, 2-molding box, 3-support arm, 4-oil cylinder, 5-feed hose, 6-plug, 7-baffle, 8-sealing strip, 9-drain trough, 10-drive motor, 11-driven gear, 12-transmission chain, 13-cross arm, 14-cross partition, 15-connecting plate, 16-molding cavity, 17-discharging mechanism, 18-spraying mechanism, 19-driving gear, 20-shock-absorbing bracket, 21-clamp ring , 22-discharge hole, 23-follow-up cylinder, 24-excellent arc groove, 25-conveying pipe, 26-rotating shaft, 27-primary discharge hole, 28-secondary discharge hole, 29-auger blade, 30-bottom sand, 31-connecting rod, 32-telescopic rod, 33-two-phase liquid inlet pipe, 34-nut, 35-screw, 36-suspender rod, 37-primary spray pipe, 38-primary spray hole, 39-secondary spray pipe, 40-secondary spray hole, 41-through hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0040] Example 1

[0041] like Figures 1 to 7As shown, this embodiment includes a molding box 2 with an open upper end, a plurality of parallel and spaced transverse partitions 14 dividing the interior of the molding box 2 into a plurality of cavities, support arms are respectively provided on the two side walls of the molding box 2, the upper ends of the two support arms 3 are connected by a transverse arm 13, an oil cylinder 4 is inverted on the transverse arm 13, the output end of the oil cylinder 4 movably passes through the transverse arm 13 and then extends downward, and a cover plate 1 matching the open end of the molding box 2 is provided on the extension section of the output end of the oil cylinder 4;

[0042] A plurality of drainage grooves 9 are arranged at equal intervals at the bottom of each cavity, and a plurality of baffles 7 matching the drainage grooves 9 are arranged on the lower surface of the cover plate 1, and when the oil cylinder 4 drives the cover plate 1 to move down to the bottom of the baffle 7 and contact the drainage grooves 9, the cavity can be divided into a plurality of molding cavities 16 of the same size;

[0043] The upper end of each baffle 7 is connected to the lower surface of the cover plate 1 through two spaced-apart connecting plates 15, and a discharge mechanism 17 and two groups of spray mechanisms 18 are respectively provided between the two connecting plates 15 along the long side direction of the molding box 2; the discharge mechanism 17 is used to lay raw materials in a plurality of molding cavities 16 in sequence, and the two groups of spray mechanisms 18 are used to spray the laid raw material layers in the plurality of molding cavities 16 with two-phase solution in sequence.

[0044] The raw material particles in this embodiment specifically include sand, gravel, crushed stone, slag, solid construction waste particles, clay particles, etc.

[0045] The specific working principle of this embodiment is as follows:

[0046] The forming box 2 is used for shaping the bio-bricks; the cover plate 1 can perform linear reciprocating motion in the vertical direction under the drive of the oil cylinder 4, and is used as a bearing platform for the discharging mechanism 17 and the spraying mechanism 18; the discharging mechanism 17 lays particles in the forming cavity 16 in layers, and the number of particles is multiple, so that particles can be injected into multiple forming cavities 16 in each cavity in sequence at the same time; the spraying mechanism 18 is set in the form of double-group spraying, one group of spray heads can spray the forming cavity 16 with bacterial liquid before the discharging mechanism 17 discharges the material, and the other group of spray heads can spray the solidifying liquid on the bottom particle layer in the forming cavity 16; multiple horizontal partitions The plate 14 first divides the interior of the molding box 2 into a plurality of long strip-shaped cavities, and the plurality of baffles 7 on the cover plate 1 move down to the corresponding drainage grooves 9 to divide each cavity into a plurality of molding cavities 16 of predetermined sizes. The steps of molding the bio-bricks in each molding cavity 16 include: 1. The first group of spraying mechanisms 18 spray the plurality of molding cavities 16 in sequence for the first time to ensure that there is a certain amount of bacterial liquid at the bottom of the molding cavity 16, so that the bacterial liquid can be mixed with the raw material when the discharging mechanism 17 lays the raw material layer in the molding cavity for the first time; 2. The plurality of discharging mechanisms 17 start to lay particles in the first row of molding cavities 16 in the molding box 2, and then Then, the particles are laid in the second row of forming cavities 16; and in the process of laying the second row of forming cavities 16, the second group of spraying mechanisms 18 starts to spray the solidifying liquid on the first row of forming cavities 16, to ensure that the solidifying liquid completely permeates the particle layer laid in the forming cavities 16, thereby increasing the solidifying effect after the bacterial liquid and the solidifying liquid react in the particle layer; 3. After the bacterial liquid spraying, particle laying and solidifying liquid spraying of the remaining rows of forming cavities 16 are completed step by step, the two groups of spraying mechanisms 18 are reset, and after a period of rest, steps 1 and 2 are repeated until all the forming cavities 16 are filled step by step with particles and the two-phase solution; 4. By manually spraying the forming cavities 16 one by one, the particles are completely permeated with the solidifying liquid, and the solidifying liquid is completely permeated with the solidifying liquid. A leveling plate is provided on the upper section of the cavity 16. For example, a through hole 41 is provided on the side wall of the upper section of each baffle 7. The leveling plate moves through the side wall of one end of the molding box 2 and then passes through a plurality of through holes 41 in the same cavity in sequence, thereby shielding the top of the molding cavity 16, and further limiting the particles from continuing to expand and diffuse upward, so as to achieve a leveling effect on the upper surface of the bio-brick. Finally, it is left to rest for two to three days to ensure that all particles are formed under the cementation of calcium carbonate, and the oil cylinder 4 is started to drive the cover plate 1 to move upward, so that the baffle 7 is out of contact with the transverse partition 14, and the collection of the formed bio-bricks is completed, thus ending the preparation process of this cycle.

[0047] Among them, the alternating laying of the two-phase solution and the particles can ensure that the two-phase solution is evenly distributed in the particle layer, thereby improving the strength and wear resistance of the bio-bricks; and the active coordination between the baffle 7 and the transverse partition 14, the formation and release of the forming cavity 16, also facilitates the collection of the bio-bricks; after completing the preparation of the same batch of bio-bricks, the residual liquid will be concentrated in the drainage trough 9, which is convenient for the operator to collect and process it uniformly.

[0048] In this embodiment, the multiple discharging mechanisms 17 start working step by step, that is, the particle laying in the multiple molding cavities 16 in the same row is realized synchronously, and by analogy, the particle laying in the multiple molding cavities 16 in each row is completed step by step, and at the same time, the corresponding two groups of spraying mechanisms 18 spray the two-phase solution alternately in sequence;

[0049] The discharging mechanism 17 includes two conveying pipes 25 and two feeding hoses 5. One end of each conveying pipe 25 is closed and the other end is open. The feeding hose 5 is connected to the open end of the conveying pipe 25. A rotating shaft 26 of the same length is provided inside the conveying pipe 25. The rotating shaft 26 is provided with a screw blade 29. One end of the rotating shaft 26 away from the feeding hose 5 is movable and passes through the closed end of the conveying pipe 25 and is connected to the connecting rod 31. The connecting rod 31 is provided with a driven gear 11. A plurality of follower cylinders 23 are sleeved on the outer wall of each conveying pipe 25. A clamping ring 21 is respectively provided on the outer wall of both ends of the follower cylinder 23. Two adjacent clamping rings 21 are respectively located at two follower cylinders 23 and extend through the connecting rod 31. The retracted rod 32 is hinged; the connecting rod 31 is connected through a tapered cylinder and a clamping ring 21 close thereto; a discharge hole 22 of the same length as the molding cavity 16 is opened on the outer wall of the follower cylinder 23 along the axial direction thereof; two primary discharge holes 27 and two secondary discharge holes 28 are respectively opened on the outer wall of the bottom of the conveying pipe 25 wrapped by multiple follower cylinders 23; the axial lengths of the primary discharge holes 27 and the secondary discharge holes 28 are less than or equal to the axial length of the discharge holes 22; a driving gear 19 is provided on the output end of the driving motor 10 fixed to the upper surface of the cover plate 1 through a shock-absorbing bracket 20, and the driving gear 19 cooperates with the driven gears 11 of the multiple discharge mechanisms 17 through a transmission chain 12;

[0050] In the initial state, on the same conveying pipe 25, multiple discharge holes 22 are all located on the upper outer wall of the follower cylinder 23 and are rotationally symmetrically distributed along the axis of the conveying pipe 25; when working, after the drive motor 10 is started, its output end drives the driving gear 19, the transmission chain 12 and the multiple driven gears 11 to drive the multiple discharge holes 22 to lay the raw materials into the molding cavity 16 in sequence along the moving direction of the spray mechanism.

[0051] The specific working principle of the discharging mechanism 17 is as follows:

[0052] The two feed hoses 5 have a certain contraction ability and can move with the cover plate 1. The upper end of the feed hose 5 is connected to the external particle feed bin, and the lower end of the feed hose 5 is connected to the conveying pipe 25. The auger blade 29 is driven to rotate through the rotating shaft 26, thereby driving the particles to move in the conveying pipe 25. At the same time, due to the start of the driving motor 10, the driving gear 19, the transmission chain 12 and the driven gear 11 on the connecting rod 31 are driven to cooperate, and then the first follower cylinder 23 close to the driven gear 11 is driven to rotate synchronously until the discharge hole 22 on the outer wall of the follower cylinder 23 is respectively aligned with the primary discharge hole 27 and the secondary discharge hole 28, and the particles are discharged. It moves successively along the discharge channel formed by the discharge hole 22 and the primary discharge hole 27 and the discharge channel formed by the discharge hole 22 and the secondary discharge hole 28 into the forming cavity 16 to complete the particle laying of the first row of the forming cavities 16; wherein, the two adjacent clamping rings 21 respectively located in the two follower cylinders 23 are hinged by the telescopic rod 32, that is, after the first follower cylinder 23 rotates a certain angle, it will pull the telescopic rod 32 in the contracted state to expand, and when the telescopic rod 32 expands to the limit position, it will drive the second follower cylinder 23 to rotate, that is, the second row of the forming cavities 16 will start to lay the particles, and so on, until the particle laying of all the forming cavities 16 is completed.

[0053] It should be noted that the spacing between the corresponding first follower cylinder 23 and the second follower cylinder 23 in the same cavity is the same as the thickness of the baffle 7, and it takes a certain amount of time for the two-phase solution to penetrate into the laid particles. The time difference between the step-by-step rotation of multiple follower cylinders 23 allows the laid particles in the first molding cavity 16 to have a certain reaction time with the two-phase solution. The laying of particles in the last molding cavity 16 is just completed, and when the two groups of spraying mechanisms 18 are reset, the laying of the second layer of particles in the first molding cavity 16 and the corresponding spraying of the two-phase solution can be started. While reducing the amount of two-phase solution used, the consolidation effect of the particles and the two-phase solution can be maximized, thereby preventing the situation in which the consolidation reaction cannot be generated locally after the two-phase solution is directly poured into the molding cavity 16 filled with particles.

[0054] Preferably, a major arc groove 24 having the same length as the primary discharge hole 27 is opened on the inner circumferential wall of each follower cylinder 23 along the circumference thereof, and the major arc groove 24 is not connected to the discharge hole 22 . Before and after the discharge hole is aligned with the primary discharge hole 27 or the secondary discharge hole 28, the primary discharge hole 27 and the secondary discharge hole 28 located at the bottom of the conveying pipe 25 will be filled with particles. When the follower cylinder 23 and the conveying pipe 25 rotate relative to each other, the particles are easily stuck in the gap between the two. In this regard, the technical solution is provided with a major arc groove 24 on the inner circumferential wall of the follower cylinder 23, and the major arc groove 24 is not connected with the discharge hole 22, that is, when the follower cylinder 23 and the conveying pipe 25 move relative to each other, the particles that are not discharged from the discharge hole 22 will be temporarily stored in the major arc groove 24, and a reflux hole is opened at the top of the conveying pipe 25. After the discharge hole 22 is aligned with the primary discharge hole 27 and the secondary discharge hole 28 in turn to complete the laying of the particles in the molding cavity 16, the particles temporarily stored in the major arc groove 24 will return to the conveying pipe 25 along the reflux hole to reduce the probability of jamming between the follower cylinder 23 and the conveying pipe 25.

[0055] Preferably, within the range of the same follower cylinder 23, two secondary discharge holes 28 are arranged side by side between two primary discharge holes 27, and the width of the primary discharge hole 27 is greater than the width of the secondary discharge hole 28. The width of the secondary discharge hole 28 is smaller than the width of the primary discharge hole 27, and a particle layer with a wavy longitudinal cross section will appear in the same molding cavity 16. When the spraying mechanism 18 sprays the two-phase solution, it will directly act on the wave crest position on the upper surface of the particle layer, thereby achieving a certain flat push effect, and forming more tiny grooves on the particle layer, which is convenient for the uniform penetration of the two-phase solution, and at the same time, it is convenient to increase the contact area between the two adjacent particle layers during laying, and reduce the probability of faults in the bio-bricks in the molding cavity 16.

[0056] Example 2

[0057] like Figures 1 to 7 As shown, this embodiment is based on the embodiment. As the core component of this embodiment, the spray mechanism 18 includes an adjusting motor, a screw 35 and two nuts 34 that cooperate with the screw 35 and are distributed at intervals. The adjusting motor is arranged on the cover plate 1 and its output end is connected to the screw 35. A slide groove is opened on the lower surface of the cover plate 1. A slide rod that slides with the slide groove is arranged on the upper end of each nut 34. A suspension rod 36 is arranged on the lower end of each nut 34. A primary spray pipe 37 that is perpendicular to the screw 35 is arranged on one suspension rod 36, and a secondary spray pipe 39 that is perpendicular to the screw 35 is arranged on the other suspension rod 36; the screw 35 is located between the two conveying pipes 25; the side walls of the primary spray pipe 37 and the secondary spray pipe 39 are provided with a two-phase liquid inlet pipe 33 that is connected to the inside thereof, and the primary spray pipe 37 and the secondary spray pipe 39 are parallel to the horizontal plane and located above the baffle 7.

[0058] When spraying the bacterial liquid and the solidifying liquid on multiple molding cavities 16 in the same cavity, the spraying mechanism 18 is set to two groups, wherein the first group of spraying mechanisms 18 will spray twice in the same molding cavity 16, which is carried out by the primary spraying pipe 37 and the secondary spraying pipe 39 in turn; before the first particle laying of the first row of molding cavities 16, the primary spraying pipe 37 first sprays the bottom of the molding cavity 16 to provide a small amount of liquid environment for the subsequent first particle laying, and after the first particle laying is completed in the first row of molding cavities 16, the primary spraying pipe 37 sprays the bottom of the molding cavity 16 to provide a small amount of liquid environment for the subsequent first particle laying. After laying, the secondary spray pipe 39 starts to spray the upper surface of the first particle layer in the molding cavity 16 for the second time to ensure that the particle layer at the bottom of the molding cavity 16 is soaked, so as to maximize the consolidation effect after the subsequent reaction with the solidifying liquid; after the first particle laying is completed in all molding cavities 16, the primary spray pipe 37 and the secondary spray pipe 39 are reset, and then the second particle layer of the molding cavity 16 is started. At this time, the injection amount of the bacterial liquid in the primary spray pipe 37 can be reduced, and the secondary spray pipe 39 is used to spray the second particle layer.

[0059] The second group of spraying mechanisms 18 is used for spraying the solidifying liquid and is spaced apart from the first group of spraying mechanisms 18. The solidifying liquid is sprayed after the first layer of particles is laid in the first row of molding cavities 16. That is, the primary spray pipe 37 and the secondary spray pipe 39 in the second group of spraying mechanisms 18 also spray the solidifying liquid twice in the same molding cavity 16. The first spray is a small amount, and the second spray is a supplementary spray.

[0060] Among them, the movement of the primary spray pipe 37 and the secondary spray pipe 39 is achieved by the cooperation of the screw 35 and the nut 34. The screw 35 is driven by an adjusting motor and can realize forward and reverse rotation. The nut 34 is limited to only produce linear motion by the cooperation of the slide rod and the slide groove. In order to reduce the spraying amount of the two-phase solution, when the primary spray pipe 37 and the secondary spray pipe 39 move to the upper end surface of the baffle 7, the opening and closing of their spray ports can be controlled by a solenoid valve.

[0061] Preferably, a plurality of primary spray holes 38 are opened in the lower section of the outer circumferential wall of the primary spray pipe 37 along the axial direction, and the axis of the primary spray hole 38 intersects with the axis of the primary spray pipe 37; a plurality of secondary spray holes 40 are opened in the lower section of the outer circumferential wall of the secondary spray pipe 39 along the axial direction, and the axis of the secondary spray hole 40 intersects with the axis of the secondary spray pipe 39; the primary spray holes 38 and the secondary spray holes 40 are arranged back to back. The axis of the primary spray hole 38 intersects with the axis of the primary spray pipe 37, and the axis of the secondary spray hole 40 intersects with the axis of the secondary spray pipe 39, which means that the primary spray hole 38 and the secondary spray hole 40 are both inclined, and when spraying the two-phase solution, they are not sprayed vertically downward to prevent excessive depressions from being formed on the surface of the particle layer and to avoid particles from agglomerating in the molding cavity 16; and the primary spray hole 38 and the secondary spray hole 40 are arranged back to back, which can ensure that the secondary spray hole 40 can supplement the spraying of the area not covered by the primary spray hole 38.

[0062] Preferably, the angles between the axis of the primary spray hole 38 and the horizontal plane, and the angles between the axis of the secondary spray hole 40 and the horizontal plane are both acute angles; and the perpendicular midline of the line connecting the axis of the primary spray pipe 37 and the axis of the secondary spray pipe 39 is taken as the symmetry axis, and the primary spray hole 38 and the secondary spray hole 40 are symmetrically distributed along the symmetry axis. The axes of the primary spray hole 38 and the secondary spray hole 40 arranged in reverse are both horizontal and form an acute angle, so that the primary spray hole 38 and the secondary spray hole 40 are respectively arranged between the bottom and the middle of the outer wall thereof, and this area can ensure that the sprayed two-phase solution moves to contact with the particle layer in a suitable trajectory, avoiding the two-phase solution from being sprayed too fast or the maximum spraying stroke being too large.

[0063] Preferably, a flexible sealing strip 8 of the same length and semicircular longitudinal cross-section is provided on the lower end face of each baffle 7, the semicircular surface of the sealing strip 8 faces the drainage groove 9, and the width of the drainage groove 9 is smaller than the diameter of the sealing strip 8. After the particles and the two-phase solution undergo a solidification reaction, liquid residue will be generated in the molding box 2. The purpose of setting the drainage groove 9 is to accelerate the discharge of such residual liquid; the purpose of setting the baffle 7 is to ensure the cross-flow of particles and the two-phase solution in the adjacent molding cavity 16. Flexible seals are provided at the contact parts between the baffle 7 and the inner wall of the molding box 2 and between the baffle 7 and the transverse partition 14, and a flexible sealing strip 8 with a semicircular longitudinal cross-section is provided on the lower end face of the baffle 7. After the baffle 7 moves down into the drainage groove 9, the upper end face of the sealing strip 8 is flush with the bottom inner wall of the molding cavity 16. The width of the drainage groove 9 is smaller than the diameter of the sealing strip 8, that is, the sealing strip 8 can produce a certain deformation. The deformation amount, combined with the seals on the two end faces, can be directly used to seal the notch of the drainage groove 9.

[0064] Preferably, in two adjacent cavities, after the drainage groove 9 in one cavity is connected to the drainage groove 9 in the other cavity, a plurality of drainage channels parallel to its short sides are formed on the inner wall at the bottom of the molding box 2; any end of the drainage channel penetrates the side wall of the molding box 2 to form an external discharge port, and a plug 6 is provided on the external discharge port. After the lower end of the baffle 7 moves into the drainage groove 9, the drainage groove 9 can not only form a certain limit effect on the baffle 7, but also seals can be provided on the two end faces and the lower end face of the baffle 7 before the bio-brick is formed to prevent the two-phase solution from overflowing; after the bio-brick is formed, the baffle 7 is out of contact with the drainage groove 9, and the plurality of drainage channels distributed at the bottom of the molding box 2 can directly discharge the residual liquid or a small amount of particles.

[0065] 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 microbial mineralized cemented bio-brick production device, comprising a molding box (2) with an open upper end, a plurality of parallel and spaced transverse partitions (14) dividing the interior of the molding box (2) into a plurality of cavities, characterized in that: Support arms are respectively provided on the two side walls of the molding box (2); the upper ends of the two support arms (3) are connected by a cross arm (13); an oil cylinder (4) is inverted on the cross arm (13); the output end of the oil cylinder (4) movably passes through the cross arm (13) and then extends downward; a cover plate (1) matching the open end of the molding box (2) is provided on the extension section of the output end of the oil cylinder (4); A plurality of drainage grooves (9) are arranged at equal intervals at the bottom of each cavity, a plurality of baffles (7) matching the drainage grooves (9) are arranged on the lower surface of the cover plate (1), and when the oil cylinder (4) drives the cover plate (1) to move downward to the bottom of the baffle plate (7) and contact the drainage grooves (9), the cavity can be divided into a plurality of molding cavities (16) of the same size; The upper end of each baffle (7) is connected to the lower surface of the cover plate (1) via two spaced connection plates (15), and a discharge mechanism (17) and two groups of spray mechanisms (18) are respectively provided between the two connection plates (15) along the long side direction of the molding box (2); the discharge mechanism (17) is used to sequentially lay raw materials in the plurality of molding cavities (16), and the two groups of spray mechanisms (18) are used to sequentially spray the two-phase solution on the raw material layers laid in the plurality of molding cavities (16); The discharging mechanism (17) comprises two conveying pipes (25) and two feeding hoses (5), one end of each conveying pipe (25) is closed and the other end is open, the feeding hose (5) is connected to the open end of the conveying pipe (25), a rotating shaft (26) of the same length as the conveying pipe (25) is provided inside the conveying pipe (25), an auger blade (29) is provided on the rotating shaft (26), one end of the rotating shaft (26) away from the feeding hose (5) movably passes through the closed end of the conveying pipe (25) and is connected to a connecting rod (31), and a driven gear (11) is provided on the connecting rod (31); A plurality of follower cylinders (23) are sleeved on the outer wall of each conveying tube (25), and clamping rings (21) are respectively provided on the outer walls at both ends of the follower cylinders (23), and two adjacent clamping rings (21) located on two follower cylinders (23) are hingedly connected via a telescopic rod (32); the connecting rod (31) is connected via a conical cylinder and the clamping ring (21) close thereto, and a discharge hole (22) having the same length as the molding cavity (16) is opened on the outer wall of the follower cylinder (23) along the axial direction thereof, and two primary discharge holes (27) and two secondary discharge holes (28) are respectively opened on the outer wall of the bottom of the conveying tube (25) wrapped by the plurality of follower cylinders (23), and the axial lengths of the primary discharge holes (27) and the secondary discharge holes (28) are less than or equal to the axial length of the discharge holes (22).

2. The microbial mineralization cementation bio-brick production device according to claim 1 is characterized by: A driving gear (19) is provided on the output end of a driving motor (10) fixed to the upper surface of the cover plate (1) via a shock-absorbing bracket (20), and the driving gear (19) cooperates with driven gears (11) of a plurality of discharging mechanisms (17) via a transmission chain (12); In an initial state, on the same conveying pipe (25), the plurality of discharge holes (22) are all located on the upper outer wall of the follower cylinder (23) and are rotationally symmetrically distributed along the axis of the conveying pipe (25); when in operation, after the drive motor (10) is started, its output end drives the driving gear (19), the transmission chain (12) and the plurality of driven gears (11) to cooperate, driving the plurality of discharge holes (22) to sequentially lay the raw materials into the molding cavity (16) along the moving direction of the spray mechanism.

3. A microbial mineralization cemented bio-brick production device according to claim 2, characterized in that: A major arc groove (24) having the same length as the primary discharge hole (27) is formed on the inner circumferential wall of each follower cylinder (23) along its circumference, and the major arc groove (24) is not connected to the discharge hole (22).

4. The microbial mineralization cementation bio-brick production device according to claim 2 is characterized by: Within the range wrapped by the same follower cylinder (23), two secondary discharge holes (28) are arranged side by side between two primary discharge holes (27), and the width of the primary discharge hole (27) is greater than the width of the secondary discharge hole (28).

5. The microbial mineralization cementation bio-brick production device according to claim 2 is characterized by: The spray mechanism (18) comprises an adjusting motor, a screw (35) and two nuts (34) matched with the screw (35) and spaced apart. The adjusting motor is arranged on the cover plate (1) and its output end is connected to the screw (35). A slide groove is provided on the lower surface of the cover plate (1). A slide rod slidably matched with the slide groove is provided at the upper end of each nut (34). A suspension rod (36) is provided at the lower end of each nut (34). A primary spray pipe (37) perpendicular to the screw (35) is provided on one suspension rod (36). A secondary spray pipe (39) perpendicular to the screw (35) is provided on the other suspension rod (36). The screw (35) is located between the two conveying pipes (25). A two-phase liquid inlet pipe (33) is provided on the side wall of each of the primary spray pipe (37) and the secondary spray pipe (39) and is in communication with the inside of each of the primary spray pipe (37) and the secondary spray pipe (39). Both the primary spray pipe (37) and the secondary spray pipe (39) are parallel to the horizontal plane and are located above the baffle (7).

6. The microbial mineralization cementation bio-brick production device according to claim 5 is characterized by: A plurality of primary spray holes (38) are opened in the lower section of the outer circumferential wall of the primary spray pipe (37) along the axial direction, and the axes of the primary spray holes (38) intersect with the axes of the primary spray pipe (37); a plurality of secondary spray holes (40) are opened in the lower section of the outer circumferential wall of the secondary spray pipe (39) along the axial direction, and the axes of the secondary spray holes (40) intersect with the axes of the secondary spray pipe (39); the primary spray holes (38) and the secondary spray holes (40) are arranged in back-to-back relation.

7. The microbial mineralization cementation bio-brick production device according to claim 6 is characterized by: The angles between the axis of the primary spray hole (38) and the horizontal plane, and the angles between the axis of the secondary spray hole (40) and the horizontal plane are both acute angles; and the perpendicular midline of the line connecting the axis of the primary spray pipe (37) and the axis of the secondary spray pipe (39) is taken as the symmetry axis, and the primary spray holes (38) and the secondary spray holes (40) are symmetrically distributed along the symmetry axis.

8. The microbial mineralization cementation bio-brick production device according to claim 1 is characterized by: A flexible sealing strip (8) of equal length and semicircular in longitudinal cross-section is provided on the lower end surface of each baffle plate (7), the semicircular arc surface of the sealing strip (8) facing the drainage groove (9), and the width of the drainage groove (9) is smaller than the diameter of the sealing strip (8); when in use, after the multiple baffle plates (7) move downward into the cavity to form multiple forming cavities (16), the upper end surface of the sealing strip (8) is flush with the bottom inner wall of the forming cavity (16).

9. A microbial mineralization cemented bio-brick production device according to any one of claims 1 to 8, characterized in that: In two adjacent cavities, after the drainage groove (9) in one cavity is connected to the drainage groove (9) in the other cavity, a plurality of drainage channels parallel to the short sides thereof are formed on the inner wall of the bottom of the molding box (2); any end of the drainage channel penetrates the side wall of the molding box (2) to form an external discharge port, and a plug (6) is provided on the external discharge port.

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