Device for biologically solidifying construction waste
By cultivating urease-producing bacteria in construction waste to form calcium carbonate crystals, the environmental and resource waste problems of traditional construction waste treatment methods are solved, and the environmentally friendly solidification and resource utilization of construction waste are realized.
Patent Information
- Application Number
- CN202522107422.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Traditional construction waste disposal methods involve land occupation, pollution spread, and resource waste. Furthermore, the cement solidification process generates a large amount of carbon dioxide, which burdens the environment.
Urease-producing bacteria are cultivated in a microbial culture reactor. The urease produced by the bacteria causes the urea in the nutrient solution to decompose, forming carbonate ions that combine with calcium ions to precipitate calcium carbonate crystals, which bind the construction waste particles. No cement is required. The use of a sprayer and a uniform spraying mechanism ensures that the bacterial solution adheres evenly and colonizes.
It achieves environmentally friendly solidification of construction waste, forming calcium carbonate crystal cemented particles, giving construction waste new engineering value, and reducing environmental burden and resource waste.
Smart Images
Figure CN223543699U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a device for biosolidifying construction waste. Background Technology
[0002] With the acceleration of urbanization, the annual output of construction waste is increasing year by year. Traditional methods such as landfill and incineration face problems such as land occupation, pollution spread, and resource waste. Against this background, microbial-induced calcium carbonate precipitation technology has become an innovative direction for the resource utilization of construction waste.
[0003] During the construction of building projects, a large amount of waste is generated due to adjustments in construction design, material cutting, and the use of substandard materials. Traditional cement solidification of construction waste produces a large amount of carbon dioxide, and the manufacturing process also places a significant burden on the environment. Therefore, we propose a device for the biosolidification of construction waste. Utility Model Content
[0004] The purpose of this invention is to provide a device for the biosolidification of construction waste. The device involves extracting bacterial solution from the inside of a microbial culture reactor via a third water pipe, and then extracting urea- and calcium-containing nutrient solution from the inside of a nutrient solution storage tank via a first water pipe. 2+ The nutrient solution is delivered to the sprayer, which solves the problem that cement hardening will place a heavy burden on the environment.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a device for biosolidifying construction waste, including a support frame, a moisture-controlled curing chamber fixedly connected to the inner wall of the support frame, a curing mechanism on the support frame, and a uniform spraying mechanism on the support frame.
[0007] The curing mechanism includes a nutrient solution tank fixedly connected to the outer wall of a support frame, a microbial culture reactor fixedly connected to the outer wall of the support frame, a water pipe 1 fixedly connected to the inner wall of the nutrient solution tank, a water pump 1 fixedly connected to the outer wall of the water pipe 1, a water pipe 2 fixedly connected to the output end of the water pump 1, a water pipe 3 fixedly connected to the inner wall of the microbial culture reactor, a water pump 2 fixedly connected to the outer wall of the water pipe 3, a water pipe 4 fixedly connected to the output end of the water pump 2, a baffle fixedly connected to the inner wall of the humidity-controlled curing chamber, a water pipe 5 fixedly connected to the inner wall of the baffle, a circulation pump fixedly connected to the outer wall of the water pipe 5, and a water pipe 6 fixedly connected to the output end of the circulation pump.
[0008] Furthermore, a rotating shaft is rotatably connected to the inner wall of the humidity-controlled curing chamber, a sensor is fixedly connected to the inner wall of the humidity-controlled curing chamber, and a controller is fixedly connected to the outer wall of the humidity-controlled curing chamber.
[0009] Furthermore, a sprayer is fixedly connected to the outer wall of the rotating shaft, a gear is fixedly connected to the outer wall of the rotating shaft, a half gear is meshed with the outer wall of the gear, and a second half gear is meshed with the side of the gear away from the half gear.
[0010] Furthermore, a rotating shaft two is fixedly connected to the outer wall of the first half gear, a rotating shaft three is fixedly connected to the outer wall of the second half gear, the outer wall of the second rotating shaft is rotatably connected to the outer wall of the humidity-controlled curing chamber, and the outer wall of the third rotating shaft is rotatably connected to the outer wall of the humidity-controlled curing chamber.
[0011] Furthermore, a motor is fixedly connected to the outer wall of the humidity-controlled curing chamber, and a rotating shaft four is fixedly connected to the output shaft of the motor via a coupling. A gear two is fixedly connected to the outer wall of the rotating shaft four.
[0012] Furthermore, gear three meshes with the outer wall of gear two, and a rotating shaft five is fixedly connected to the outer wall of gear three. The outer wall of rotating shaft five is rotatably connected to the outer wall of the humidity control and curing chamber, and a pulley one is fixedly connected to the outer wall of rotating shaft four.
[0013] Furthermore, a belt is driven to the outer wall of the pulley, and a second pulley is driven to the end of the belt away from the pulley. The inner wall of the second pulley is fixedly connected to the outer wall of the rotating shaft. A third pulley is fixedly connected to the outer wall of the rotating shaft.
[0014] Furthermore, the outer wall of the pulley three is connected to the belt two, and the end of the belt two away from the pulley three is connected to the pulley four. The inner wall of the pulley four is fixedly connected to the outer wall of the rotating shaft three.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model incorporates a microbial culture reactor. Urease-producing bacteria are first cultivated within the reactor, supplied with a culture medium containing urea and calcium salts for proliferation, resulting in a highly active bacterial solution. Then, the construction waste fragments to be solidified, such as waste bricks and concrete particles, are evenly spread inside the moisture-controlled curing chamber. This mechanism uses urease produced by the bacteria to decompose the urea in the nutrient solution, forming carbonate ions. These carbonate ions then combine with calcium ions to precipitate calcium carbonate crystals, binding adjacent particles together. Without the need for traditional cementing materials such as cement, construction waste can be reinforced into blocks or roadbed materials. The process is environmentally friendly and gives construction waste new engineering value.
[0017] 2. This utility model incorporates a sprayer, which is then activated by a controller to drive the rotating shaft four to rotate. As the rotating shaft four rotates, it drives the pulley one to rotate, which in turn drives the belt one to move. As the belt one moves, it drives the pulley two to rotate. This mechanism allows the sprayer to spray evenly, ensuring that the bacterial solution fully adheres to the surface of the material. It also allows for the uniform colonization of microorganisms within the pores, resulting in a denser distribution of calcium carbonate crystals.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the water pump of this utility model;
[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0023] Figure 4 This is a schematic diagram of the circulating pump structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the sensor structure of this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 101. Support frame; 102. Humidity-controlled curing chamber; 2. Curing mechanism; 201. Nutrient solution storage tank; 202. Microbial culture reactor; 203. Water pipe one; 204. Water pump one; 205. Water pipe two; 206. Water pipe three; 207. Water pump two; 208. Water pipe four; 209. Baffle; 210. Water pipe five; 211. Circulation pump; 212. Water pipe six; 3. Uniform spraying mechanism; 301. Rotating shaft one; 302. Sprayer; 3 03. Gear 1; 304. Half Gear 1; 305. Half Gear 2; 306. Rotating Shaft 2; 307. Rotating Shaft 3; 308. Motor; 309. Rotating Shaft 4; 310. Gear 2; 311. Gear 3; 312. Rotating Shaft 5; 313. Pulley 1; 314. Belt 1; 315. Pulley 2; 316. Pulley 3; 317. Belt 2; 318. Pulley 4; 319. Sensor; 320. Controller. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-5 As shown, this utility model is a device for biological solidification of construction waste, including a support 101, a moisture-controlled curing chamber 102 fixedly connected to the inner wall of the support 101, a solidification mechanism 2 provided on the support 101, and a uniform spraying mechanism 3 provided on the support 101.
[0029] The solidification mechanism 2 includes a nutrient solution tank 201 fixedly connected to the outer wall of a support 101. A microbial culture reactor 202 is fixedly connected to the outer wall of the support 101. A water pipe 203 is fixedly connected to the inner wall of the nutrient solution tank 201, and a water pump 204 is fixedly connected to the outer wall of the water pipe 203. By setting up the microbial culture reactor 202, urease-producing bacteria such as Bacillus subtilis can be cultivated in the microbial culture reactor, supplied with a culture medium containing urea and calcium salts for proliferation, to obtain a highly active bacterial solution. A water pipe 205 is fixedly connected to the output end of the water pump 204. A water pipe 206 is fixedly connected to the inner wall of the microbial culture reactor 202, and a water pump 207 is fixedly connected to the outer wall of the water pipe 206. A water pipe 208 is fixedly connected to the output end of the water pump 207. A baffle 209 is fixedly connected to the inner wall of a humidity-controlled curing chamber 102. By setting up the humidity-controlled curing chamber 102, the humidity-controlled curing chamber can maintain a suitable temperature and humidity, providing conditions for bacterial sedimentation. To provide an optimized environment, a water pipe 210 is fixedly connected to the inner wall of the baffle 209, and a circulation pump 211 is fixedly connected to the outer wall of the water pipe 210. A water pipe 212 is fixedly connected to the output end of the circulation pump 211. A rotating shaft 301 is rotatably connected to the inner wall of the humidity-controlled curing chamber 102. By setting the baffle 209, unreacted bacterial solution and nutrient solution will flow into the baffle 209 and then circulate through the circulation pump 211. A sensor 319 is fixedly connected. A controller 320 is fixedly connected to the outer wall of the humidity control and curing chamber 102. A sprayer 302 is fixedly connected to the outer wall of the rotating shaft 301. A gear 303 is fixedly connected to the outer wall of the rotating shaft 301. By setting the sprayer 302, the bacterial liquid and nutrient liquid are sprayed into the construction waste. A half gear 304 meshes with the outer wall of the gear 303. A second half gear 305 meshes with the side of the gear 303 away from the half gear 304.
[0030] A rotating shaft 306 is fixedly connected to the outer wall of half gear 304, and a rotating shaft 307 is fixedly connected to the outer wall of half gear 305. The outer wall of rotating shaft 306 is rotatably connected to the outer wall of humidity-controlled curing chamber 102, and the outer wall of rotating shaft 307 is rotatably connected to the outer wall of humidity-controlled curing chamber 102. By setting half gear 304 and half gear 305, when driving the gear, it can drive the gear to rotate halfway and then disengage from the gear mesh. A motor 308 is fixedly connected to the outer wall of humidity-controlled curing chamber 102, and the output shaft of motor 308 is connected via a coupling. The device is fixedly connected to a rotating shaft 309, and a gear 310 is fixedly connected to the outer wall of the rotating shaft 309. A gear 311 is fixedly connected to the outer wall of the gear 310. A motor 308 is installed to drive the rotating shaft 309 to rotate. When the rotating shaft 309 rotates, it will drive the gear 310 to rotate. A rotating shaft 312 is fixedly connected to the outer wall of the gear 311. The outer wall of the rotating shaft 312 is rotatably connected to the outer wall of the humidity control and curing chamber 102. A pulley 313 is fixedly connected to the outer wall of the rotating shaft 309.
[0031] A belt 314 is driven to the outer wall of pulley 313. A second pulley 315 is driven to the end of belt 314 away from pulley 313. The inner wall of pulley 315 is fixedly connected to the outer wall of rotating shaft 306. A third pulley 316 is fixedly connected to the outer wall of rotating shaft 312. By setting pulley 313, when pulley 313 rotates, it will drive belt 314 to move, thereby driving pulley 315 to rotate. When pulley 315 rotates, it will drive rotating shaft 306 to rotate. A second belt 317 is driven to the outer wall of pulley 316. A fourth pulley 318 is driven to the end of belt 317 away from pulley 316. The inner wall of pulley 318 is fixedly connected to the outer wall of rotating shaft 307.
[0032] One specific application of this embodiment is:
[0033] First, urease-producing bacteria, such as Bacillus subtilis, are cultivated in the microbial culture reactor 202. A culture medium containing urea and calcium salts is supplied for proliferation to obtain a highly active bacterial solution. Then, the construction waste fragments to be solidified, such as waste bricks and concrete particles, are evenly spread inside the moisture-controlled curing chamber 102. Next, water pump 207 is started, drawing the bacterial solution from inside the microbial culture reactor 202 through water pipe 206, and then transporting it to the sprayer 302 through water pipe 208. Then, water pump 204 is started, drawing urea- and calcium-containing solutions from the nutrient solution storage tank 201 through water pipe 203. 2+The nutrient solution is then transported to the sprayer 302 via water pipe 205, allowing the bacterial solution to circulate internally. Unreacted bacterial solution and nutrient solution flow into the baffle 209. The circulation pump 211 then absorbs the nutrient solution and bacterial solution from the baffle 209 via water pipe 210, and returns them to the sprayer 302 via water pipe 212. This mechanism utilizes urease produced by bacteria to decompose urea in the nutrient solution, forming carbonate ions. These carbonate ions then combine with calcium ions to precipitate calcium carbonate crystals, binding adjacent particles together without the need for traditional cement methods. Cementitious materials can be used to reinforce construction waste into blocks or roadbed materials. The process is environmentally friendly and gives construction waste new engineering value. Then, the controller 320 starts the motor 308, which drives the rotating shaft 309 to rotate. When the rotating shaft 309 rotates, it drives the pulley 313 to rotate, which in turn drives the belt 314 to move. When the belt 314 moves, it drives the pulley 315 to rotate, which in turn drives the rotating shaft 306 to rotate, which in turn drives the half gear 304 to rotate. When the half gear 304... When the gear meshes with gear 303, it will drive gear 303 to rotate. Simultaneously, the rotation of shaft 309 will drive gear 310 to rotate, which in turn drives gear 311 to rotate. Gear 311's rotation will drive pulley 316 to rotate, which in turn drives belt 317 to rotate, which in turn drives pulley 318 to rotate. Pulley 318's rotation will then drive shaft 307 to rotate, thus driving half gear 305 to engage. When the gear 305 rotates to mesh with the gear 303, it will drive the gear 303 to rotate in the opposite direction. When the gear 303 rotates forward or backward, it will also drive the rotating shaft 301 to rotate, thereby driving the sprayer 302 to rotate. At the same time, the sensor 319 can monitor the pH and ion concentration to determine the spraying frequency. This mechanism can enable the sprayer 302 to spray evenly, ensuring that the bacterial liquid fully adheres to the surface of the material, and at the same time, it can make the microorganisms uniformly colonize in the pores, and the calcium carbonate crystals are more densely distributed.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for biosolidifying construction waste, comprising a support frame (101), characterized in that: A humidity-controlled curing chamber (102) is fixedly connected to the inner wall of the bracket (101), a curing mechanism (2) is provided on the bracket (101), and a uniform spraying mechanism (3) is provided on the bracket (101). The solidification mechanism (2) includes a nutrient solution tank (201) fixedly connected to the outer wall of the support (101), a microbial culture reactor (202) fixedly connected to the outer wall of the support (101), a water pipe (203) fixedly connected to the inner wall of the nutrient solution tank (201), a water pump (204) fixedly connected to the outer wall of the water pipe (203), a water pipe (205) fixedly connected to the output end of the water pump (204), and a microbial culture reactor (202) fixedly connected to the inner wall of the microbial culture reactor (202). There is a water pipe three (206), a water pump two (207) is fixedly connected to the outer wall of the water pipe three (206), a water pipe four (208) is fixedly connected to the output end of the water pump two (207), a baffle (209) is fixedly connected to the inner wall of the humidity control and maintenance chamber (102), a water pipe five (210) is fixedly connected to the inner wall of the baffle (209), a circulation pump (211) is fixedly connected to the outer wall of the water pipe five (210), and a water pipe six (212) is fixedly connected to the output end of the circulation pump (211). The inner wall of the humidity-controlled curing chamber (102) is rotatably connected to a rotating shaft (301), a sensor (319) is fixedly connected to the inner wall of the humidity-controlled curing chamber (102), a controller (320) is fixedly connected to the outer wall of the humidity-controlled curing chamber (102), a sprayer (302) is fixedly connected to the outer wall of the rotating shaft (301), a gear (303) is fixedly connected to the outer wall of the rotating shaft (301), and a half gear (303) meshes with the outer wall of the gear (303). 304), the gear one (303) is meshed with the half gear two (305) on the side away from the half gear one (304), the outer wall of the half gear one (304) is fixedly connected to the rotating shaft two (306), the outer wall of the half gear two (305) is fixedly connected to the rotating shaft three (307), the outer wall of the rotating shaft two (306) is rotatably connected to the outer wall of the humidity control chamber (102), and the outer wall of the rotating shaft three (307) is rotatably connected to the outer wall of the humidity control chamber (102).
2. The device for biosolidifying construction waste according to claim 1, characterized in that, A motor (308) is fixedly connected to the outer wall of the humidity control and maintenance chamber (102). The output shaft of the motor (308) is fixedly connected to a rotating shaft four (309) via a coupling. A gear two (310) is fixedly connected to the outer wall of the rotating shaft four (309).
3. The device for biosolidifying construction waste according to claim 2, characterized in that, Gear 3 (311) is fixedly connected to the outer wall of gear 2 (310), and rotating shaft 5 (312) is fixedly connected to the outer wall of gear 3 (311). The outer wall of rotating shaft 5 (312) is rotatably connected to the outer wall of humidity control chamber (102). Pulley 1 (313) is fixedly connected to the outer wall of rotating shaft 4 (309).
4. The device for biosolidifying construction waste according to claim 3, characterized in that, The outer wall of the pulley one (313) is connected to the belt one (314), and the end of the belt one (314) away from the pulley one (313) is connected to the pulley two (315). The inner wall of the pulley two (315) is fixedly connected to the outer wall of the rotating shaft two (306), and the outer wall of the rotating shaft five (312) is fixedly connected to the pulley three (316).
5. The device for biosolidifying construction waste according to claim 4, characterized in that, The outer wall of the pulley three (316) is connected to the belt two (317), and the end of the belt two (317) away from the pulley three (316) is connected to the pulley four (318). The inner wall of the pulley four (318) is fixedly connected to the outer wall of the rotating shaft three (307).