Organic waste resource fermentation treatment device and system

Abstract

The application discloses a kind of organic waste resourceization fermentation treatment device and system, belong to the technical field of organic waste resourceization processing, realize optimization physical phase separation, improve gas collection purity and efficiency.The present application includes acidification fermentation tank and biogas generation tank, biogas generation tank is connected gas collection pipe by pipeline, gas collection pipe is external gas collection and storage device, acidification fermentation tank and biogas generation tank outside are separately provided with heat preservation wrapping layer.Hydrolysis acidification stage is completely separated from methanogenesis stage in physical space, avoids the mutual inhibition caused by the conflict of different flora to environmental demand in traditional single cylinder device, acidification tank as pretreatment unit, can effectively buffer the fluctuation of organic load in feed, independent heat preservation wrapping layer allows the most suitable temperature gradient curve to be set for two stages respectively, realizes the automation and intelligent management of system.

Description

Technical Field

[0001] This invention relates to the technical field of organic waste resource utilization treatment, and in particular to an organic waste resource utilization fermentation treatment device and system. Background Technology

[0002] Organic waste includes kitchen waste, livestock and poultry manure, agricultural straw, and food processing wastewater. These wastes are characterized by high water content, rich organic matter, and easy decomposition and odor. If not properly treated and randomly dumped or landfilled, they will not only occupy a large amount of land, but also produce high concentrations of leachate that pollute groundwater and soil. At the same time, they will release malodorous gases such as ammonia and hydrogen sulfide, as well as greenhouse gases such as methane, posing a serious threat to the ecological environment and residents' health. In order to solve the above environmental problems and turn waste into treasure, anaerobic fermentation technology has become the most mainstream treatment process due to its low energy consumption, minimal secondary pollution, and ability to produce clean energy and organic fertilizer. Anaerobic fermentation refers to the process of degrading high molecular weight organic matter into methane and carbon dioxide under anaerobic conditions using facultative anaerobic bacteria and obligate anaerobic bacteria. This process is mainly divided into four stages: hydrolysis stage, acidification stage, acetylation stage, and methanogenesis stage.

[0003] Currently, anaerobic fermentation devices for organic waste are mainly divided into two categories: single-phase and two-phase. Single-tank fermentation devices are the most widely used form, in which hydrolysis, acidification, and methanogenesis are completed in the same reaction tank. They have a simple structure and low investment cost. Double-tank fermentation devices separate the acidification stage and the methanogenesis stage by using two independent tanks. The first tank is dedicated to hydrolysis and acidification, and the second tank is dedicated to methanogenesis, attempting to allow different types of microorganisms to grow in their most suitable environment.

[0004] In single-cylinder systems, acid-producing bacteria and methanogens coexist in the same environment. Because their requirements for pH and growth rate are quite different, the system often has to operate under compromise conditions, making it difficult to achieve their respective optimal metabolic efficiency. Existing dual-cylinder systems, although physically separated, often lack precise flow control and accurate adjustment of flow rate and velocity, which can easily cause material blockage or impact on subsequent tanks. They also lack systematic insulation design, resulting in inaccurate temperature control and huge energy consumption. Traditional gas collection pipelines often lack complete gas-liquid separation and desulfurization pretreatment, resulting in more impurities in the initial gas collection, increasing the difficulty of subsequent processing.

[0005] CN120924392A discloses a system and method for segmented regulation of anaerobic fermentation of biomass based on modified biochar. The system includes a low-temperature biochar preparation system, a biochar modification system, a hydrolysis-acidification system, a methanogenesis system, a biogas purification and separation system, and a heat utilization system. The low-temperature biochar preparation system prepares low-temperature biochar and provides it to the hydrolysis-acidification system and the biochar modification system. The biochar modification system modifies the low-temperature biochar with carbon dioxide at high temperatures to obtain modified biochar, which is then provided to the methanogenesis system. This invention modifies the biochar to meet the different functional requirements of different stages of anaerobic fermentation, and adds low-temperature biochar and modified biochar to the hydrolysis-acidification and methanogenesis stages of anaerobic fermentation, respectively, to achieve precise intervention in C / N dynamic balance and inhibitor control. This technology uses a dual-cylinder fermentation device to separate the acidification and methanogenesis stages, focusing on the regulation of material flow and biochemical reactions, but does not involve precise automated control of the driving components of the fermentation device. Summary of the Invention

[0006] To address the issues of lacking precise flow control and efficient heat preservation, optimize physical phase separation, and improve the purity and efficiency of gas collection, this invention provides an organic waste resource-based fermentation treatment device and system.

[0007] On the one hand, the organic waste resource-based fermentation treatment device provided by the present invention adopts the following technical solution: An organic waste resource utilization fermentation treatment device includes an acidification fermentation tank and a biogas generator. The acidification fermentation tank and the biogas generator are connected to each other via a transfer and conveying pipe. The acidification fermentation tank is used to hydrolyze and acidify organic waste, and the biogas generator is used for microbial decomposition of the hydrolyzed and acidified organic waste to produce biogas. The biogas generator is connected to a gas collection pipe via a pipeline, and the gas collection pipe is externally connected to a gas collection and storage device. Each of the acidification fermentation tank and the biogas generator is separately provided with a heat insulation wrapping layer, which is used to regulate the internal ambient temperature of the acidification fermentation tank and the biogas generator, respectively. The transfer and conveying pipe, the gas collection pipe, and the heat insulation wrapping layer are externally connected to a control device.

[0008] By completely separating the hydrolysis and acidification stages from the methanogenesis stage in physical space, the acidification tank can maintain a slightly acidic environment to accelerate the decomposition of organic matter, while the biogas tank can maintain a neutral to slightly alkaline environment to ensure the optimal activity of methanogenic bacteria. This avoids the mutual inhibition caused by the conflicting environmental requirements of different bacterial groups in traditional single-cylinder devices. As a pretreatment unit, the acidification tank can effectively buffer the fluctuations in the organic load during feeding, pre-degrading large molecular organic matter into small molecular organic acids, providing a stable material supply for the subsequent biogas generator. The independent insulation layer allows the system to set the most suitable temperature gradient curves for the two stages without interference. Through the connection of the control device with the transfer and delivery pipe, insulation layer and gas collection pipe, the system achieves automated and intelligent management. Through the optimized gas collection pipe and storage device, the generated high-purity biogas can be collected efficiently, which not only achieves the harmless reduction and treatment of organic waste, but also transforms it into clean energy with economic value.

[0009] Furthermore, the acidification fermentation tank has a feed inlet for filling the tank with organic waste. A circulating agitator is installed inside the tank, which uses paddles to stir and drive the organic waste slurry to circulate in a directional manner. A filter screen is installed inside the tank to filter and collect lumpy non-degradable materials.

[0010] By installing a circulating agitator inside the acidification fermentation tank, the organic waste slurry is directionally circulated using paddles, eliminating dead zones and short-circuiting phenomena within the tank. This ensures that newly introduced organic waste comes into rapid and sufficient contact with the existing acidifying bacteria, avoiding localized over-acidification or under-reaction. The forced convection of the fluid significantly improves heat transfer efficiency, and combined with the external insulation layer, the temperature distribution throughout the tank becomes more uniform, providing a stable thermal environment for microbial metabolism. Continuous stirring effectively prevents high-solids waste from settling and caking at the bottom of the tank, ensuring the homogeneity of the reaction system. Before the material enters the transfer and conveying pipe, the filter effectively intercepts lumps of non-degradable materials such as plastics, stones, and large bones, directly eliminating the risk of physical blockage of subsequent connecting pipes, valves, and pumps due to large particulate impurities.

[0011] Furthermore, a sealing cover is installed at the feed inlet, the sealing cover is normally closed, a sealing gasket is installed at the contact point between the sealing cover and the feed inlet, the circulating agitator is a spiral agitator, and a circulating cylinder is fitted around the outer edge of the circulating agitator. The circulating cylinder is suspended in the acidification fermentation tank by a bracket, and a settling tank is provided at the bottom of the filter screen on the filtering side, and a slag discharge port is opened at the bottom of the settling tank.

[0012] By employing a spiral agitator in conjunction with a suspended circulation cylinder, a controlled internal circulation flow field is constructed. The circulation cylinder restricts the radial diffusion of the fluid, concentrating the mechanical energy generated by the agitator into the axial kinetic energy of the fluid. This forces the slurry to form a regular closed loop along the inside and outside of the cylinder. Compared with open agitation without a guide cylinder, this significantly improves the circulation speed and mixing uniformity of the liquid phase. The settling tank utilizes gravity to allow high-density impurities such as sand, metal fragments, or large pieces of bone intercepted by the filter screen to naturally settle and accumulate at the bottom of the tank, achieving physical stratification of impurities and fermentation slurry. The slag discharge port allows operators to periodically clean up the accumulated solid waste.

[0013] Furthermore, a separator agitator is installed inside the biogas generator. The agitator blades agitate and drive the organic waste slurry to flow vertically from bottom to top. Biofilms are installed at intervals inside the biogas generator. The biofilms are used to degrade microbial attachment. A three-phase separator is installed at the top of the inner cavity of the biogas generator. The three-phase separator is used to separate and collect biogas.

[0014] The upward vertical driving force effectively counteracts the gravitational settling of activated sludge particles, keeping the high-concentration microbial sludge in suspension and ensuring full contact between organic waste and microorganisms. The forced vertical flow accelerates the exchange of substances in the liquid phase, eliminating local reaction dead zones or concentration gradients, allowing the fermentation substrate to diffuse more rapidly to the surface of microorganisms, thereby improving the gas production efficiency per unit volume. The biofilm provides a huge fixed growth surface area for methanogens and other microorganisms, and the high-density biofilm formed on the membrane surface significantly increases the microbial population in the reactor. The three-phase separator uses physical shielding and gravity separation principles to block droplets and solid particles carried by rising bubbles, allowing pure biogas to enter the gas collection chamber and achieving effective recovery of energy gas.

[0015] Furthermore, a vibrator is installed inside the biogas generator, which generates vibration through a vibrating motor to agitate the organic waste slurry. The biofilm is installed inside the biogas generator via a suspension bracket. A permeable membrane is installed inside the three-phase separator, which is used to separate gas from the organic waste slurry. A hydrophobic layer is provided on the surface of the permeable membrane facing the inner cavity of the biogas generator. A barrier net is installed on the side of the permeable membrane that contacts the organic waste slurry, which is used to separate solids and liquids.

[0016] Mechanical vibration waves propagate in the slurry, generating shear forces that disrupt the surface tension binding between tiny biogas bubbles and sludge particles. This forces the microbubbles attached to the suspended surface to detach. The detached microbubbles then coalesce into larger bubbles under vibration, increasing buoyancy and significantly improving the gas escape rate. For high-concentration organic slurries, vibration disrupts the internal thixotropic structure, reducing the apparent viscosity of the fluid. This helps improve slurry flowability, reduces dead zones, and prevents the scum layer from hardening and hardening on the surface. The permeable membrane utilizes the membrane material to separate gas molecules from liquid molecules. The selective permeability difference of the particles enables precise separation of the gas and liquid phases, reducing the amount of droplets or aerosols in the collected biogas and improving gas purity. The hydrophobic layer significantly reduces the surface energy of the membrane surface, preventing increased gas transmission resistance due to liquid blockage of the pores, and ensuring the long-term stable permeability of the system in humid environments. The barrier net installed on the side of the permeable membrane in contact with the slurry acts as a pre-filter, intercepting large solid particles and flocculated sludge clumps through a physical sieving mechanism, preventing them from directly adhering to or scraping the surface of the precision permeable membrane, avoiding mechanical damage, and extending the service life of the permeable membrane.

[0017] Furthermore, a transfer pump is connected and installed on the transfer and conveying pipe. The transfer pump is connected to an external water supply device through a water replenishment pipe. A check valve is installed on the pipe connecting the transfer pump and the biogas generator. The check valve controls the unidirectional flow of organic waste slurry from the acidification fermentation tank to the biogas generator. A backflow port is provided at the starting end of the unidirectional flow of the check valve. The backflow port is connected to an external water supply device through a high-pressure water pipe.

[0018] The check valve utilizes a mechanical closing mechanism to forcibly limit the unidirectional transmission of fluids. This effectively prevents high-pressure gas or anaerobic sludge mixture in the biogas generator from flowing back into the acidification fermentation tank during pump shutdown intervals. This device blocks pressure transmission, helps maintain the operating pressure in the biogas generator, and prevents pressure leakage or level fluctuations caused by backflow. The backflush port allows the introduction of high-pressure water jets, which generate strong scouring forces in the valve seat and valve disc area of ​​the check valve. This effectively peels off and removes fiber entanglements, sediment, or scale accumulated at the valve inlet, restoring pipeline unobstructed flow without disassembling the pipeline. The water replenishment device allows for the metered injection of process water into the organic waste slurry during transportation, diluting and adjusting the total solids concentration of the feed, reducing the rheological viscosity of the slurry, and thus reducing pipeline friction and local resistance.

[0019] Furthermore, a negative pressure pump is connected and installed on the gas collection pipe, and a desulfurization box is connected to one end of the gas collection pipe. A buffer airbag is installed on the pipe connecting the negative pressure pump and the biogas generator. The buffer airbag is wrapped around a rigid porous pipe. A pressure relief valve is connected and installed on one side of the buffer airbag. A flame arrester and an igniter are installed at the pressure relief outlet of the pressure relief valve.

[0020] The buffer airbag utilizes its elastic deformation properties as a gas volume regulating unit. When the gas production rate in the biogas generator tank suddenly increases or the suction force of the negative pressure pump generates a momentary pulse, the airbag expands or contracts to store or release gas, smoothing out pressure peaks in the pipeline and preventing mechanical shocks to pipe interfaces and precision instruments caused by rapid pressure changes. The rigid porous tube, acting as an inner lining skeleton, provides radial support. When the operation of the negative pressure pump causes a momentary high vacuum in the pipe, the rigid porous tube limits the inward deformation limit of the buffer airbag, preventing the airbag from blocking the gas flow channel due to excessive contraction. This ensures the geometric stability and flow cross-sectional area of ​​the gas collection channel, facilitating desulfurization. The tank is placed at the end of the delivery pipeline. It uses a desulfurizing agent to remove hydrogen sulfide from the biogas through chemical adsorption or redox reaction, reducing pollution and chemical corrosion. The pressure relief valve sets the maximum safe working pressure threshold of the system. When the system pressure exceeds this threshold due to pipeline blockage or uncontrolled gas production, the pressure relief valve automatically opens to release gas, physically limiting the further rise in system pressure and preventing physical damage such as pipeline rupture or tank explosion. The igniter ensures that the excess biogas released can be ignited immediately and combusted in a controlled manner, avoiding the risk of secondary fires and explosions caused by the direct accumulation of combustible gases, while reducing the greenhouse effect impact of the emitted gases on the atmospheric environment.

[0021] Furthermore, a heating layer is provided inside the insulation wrapping layer, and the heating layer is closely attached to the acidification fermentation tank and the biogas generator. A perforated plate is provided inside the heating layer. The perforated plate has a sponge-like structure and is connected to a water supply pipe at both ends. One end of the water supply pipe is connected to a heater. A protective shell is wrapped around the outside of the insulation wrapping layer.

[0022] The high porosity structure of the porous plate significantly increases the contact area between the heating medium and the solid skeleton. This structure prolongs the residence time of the fluid in the heating layer and enhances the convective heat transfer coefficient between the fluid and the metal wall, thereby improving the efficiency of heat transfer from the heating medium to the walls of the acidification fermenter and biogas generator. The complex flow channels within the porous medium promote the dispersion and mixing of the heat transfer fluid, eliminating local overheating or undercooling areas within the heating layer. The insulation wrapping layer uses a low thermal conductivity material, increasing the thermal resistance of the system to heat transfer to the external environment, effectively limiting the radial loss of heat to the surrounding atmosphere, reducing the heating power required to maintain the target temperature of the reactor, and achieving energy-saving operation of the system. In particular, it can maintain a constant process temperature inside the reactor under low-temperature environmental conditions. The protective shell, as the outermost physical barrier, has high mechanical strength.

[0023] On the other hand, the organic waste resource-based fermentation treatment system provided by the present invention adopts the following technical solution: An organic waste resource recovery fermentation treatment system, applied to the aforementioned organic waste resource recovery fermentation treatment device, includes a control processing module and a monitoring and sensing module. The control processing module controls the drive components of the fermentation treatment device, and the monitoring and sensing module monitors the operating data of the fermentation treatment device and sends it to the control processing module. The control processing module is connected to the monitoring and sensing module via a data cable and controls and adjusts the drive components of the fermentation treatment device based on the operating data monitored by the monitoring and sensing module. The control processing module and the monitoring and sensing module are respectively connected to a data display module via a control transmission cable and a data transmission cable. The data display module is used to display data information and facilitate human-machine interaction.

[0024] The system constructs a closed-loop feedback control loop based on sensor data. The monitoring and sensing module acquires key process parameters of the fermentation device in real time, and the control processing module compares and calculates the acquired values ​​with the preset process settings. If a deviation occurs, the controller immediately outputs a correction signal to drive the actuator, realizing precise adjustment of fermentation environment parameters and ensuring that the fermentation process is always within the steady-state range of optimal process conditions. The data display module serves as a human-machine interface, transforming the underlying sensor raw data and controller state logic into visualized values, charts, or status indicators, enabling operators to intuitively and comprehensively grasp the real-time operating status of the system and reducing the complexity of information interpretation.

[0025] Furthermore, the control processing module includes a control processor, a control signal converter, and an emergency stop button. The control processor is used for data processing and software operation. The control signal converter is used to convert the control data from the control processor into drive electrical signals. The emergency stop button is used for manual or automatic emergency stop operation. The monitoring and sensing module includes a sensor monitor, a component analyzer, and an alarm. The sensor monitor is installed at the monitoring point of the fermentation treatment device to monitor the temperature, pressure, and flow rate of the fermentation treatment device. The component analyzer is installed inside the fermentation treatment device to analyze the components and concentrations within the fermentation treatment device. The alarm is used to display abnormalities detected by the sensor monitor and the component analyzer. The data display module includes a display and an interactive terminal.

[0026] The system not only monitors the physical environmental parameters during fermentation, but also acquires key indicators of internal biochemical reactions in real time through a component analyzer, such as specific gas concentrations, pH values, or substrate concentrations. This multi-dimensional data acquisition constructs a complete process state model, enabling the control system to adjust drive components based on the actual progress of the biochemical reaction. This significantly improves the quality stability and conversion efficiency of fermentation products. Data acquisition from different monitoring points allows for refined and comprehensive management of different stages of fermentation. The control processor, as the computing core, supports the execution of complex control algorithms and can handle large amounts of concurrent data from multiple sensors, ensuring the real-time performance and logical correctness of the system's calculations under complex operating conditions. The emergency stop button provides a hardware safety loop independent of conventional control logic, and the alarm provides intuitive on-site warnings, shortening the response time for operators to detect faults. The interactive terminal allows users to delve into the system's underlying layers to set parameters, modify thresholds, and query historical data, improving the convenience and depth of system debugging, maintenance, and daily operation.

[0027] In summary, the present invention has the following beneficial technical effects: 1. By physically separating the acidification fermentation tank and the biogas generator, and with their respective independent insulation layers and control devices, phase-separated regulation of the fermentation environment is achieved. The acidification tank maintains a slightly acidic environment to accelerate hydrolysis, while the biogas generator maintains a neutral to slightly alkaline environment to ensure the activity of methanogenic bacteria. This completely solves the problem of microbial environment conflict in single-tank fermentation. At the same time, the control device independently adjusts the temperature of the two insulation layers according to the needs of different stages, constructing an optimal stepped temperature control curve, which significantly improves the overall fermentation efficiency and gas production quality.

[0028] 2. The spiral agitator and the suspended circulation cylinder in the acidification fermentation tank work together to force the slurry to form a regular axial closed circulation, eliminating dead zones in the reaction. This high-speed and orderly circulation significantly enhances the convective heat transfer coefficient between the slurry and the heat insulation layer of the tank wall, ensuring that heat is rapidly and evenly transferred to the center of the tank, avoiding local overheating or reaction stagnation, and providing a highly homogeneous biochemical reaction bed for microorganisms.

[0029] 3. The combined application of filter screens and settling tanks in the acidification fermentation tank effectively intercepts and separates lumpy non-degradable materials. This pretreatment, in conjunction with the subsequent transfer and conveying pipes, pumps, and check valves, eliminates the possibility of large particles entering the precision conveying pipeline through physical sieving and gravity settling. This prevents pump impeller damage and valve jamming, ensuring the mechanical stability of continuous feeding in the system. Furthermore, in conjunction with the spiral agitator and the directional circulation of the suspended circulation cylinder, it quickly and comprehensively achieves overall filtration of the slurry.

[0030] 4. The separator and agitator inside the biogas generator produces a vertically upward driving force to resist sludge settling. Combined with the large fixation surface provided by the biofilm, it keeps the microorganisms in a high-concentration suspended or attached state. At the same time, the three-phase separator at the top uses physical shielding to block rising solid particles and droplets. The three work together to ensure sufficient contact between the substrate and microorganisms and effectively prevent activated sludge from being lost with biogas, thus achieving efficient retention and enrichment of biomass in the reactor.

[0031] 5. The mechanical vibration waves generated by the vibrator disrupt the thixotropic structure of the slurry and the surface tension of the bubbles, causing microbubbles to coalesce and float. This physical effect works in conjunction with the breathable membrane. The vibration accelerates the transmission of gas to the membrane surface, while the hydrophobic breathable membrane utilizes the difference in interfacial tension to allow only gas molecules to pass through and block liquid. The combination of the two significantly improves the gas-liquid separation efficiency and biogas purity in high-viscosity fermentation broth, while reducing the residence time of bubbles on the biofilm, achieving a higher contact rate between the biofilm and the slurry, and improving fermentation efficiency.

[0032] 6. The check valve and the backflush port complement each other on the delivery pipeline. The check valve uses mechanical closure to prevent high-pressure backflow from the biogas tank and maintain system pressure balance. When the check valve fails to seal or becomes blocked due to the accumulation of impurities, the high-pressure water jet introduced by the backflush port can directly clean the valve seat area in situ. This cooperative design ensures unidirectional delivery while solving the pain point of traditional unidirectional valves being difficult to maintain online.

[0033] 7. The buffer airbag is wrapped around the outside of the rigid porous tube and is linked to the pressure relief valve. The buffer airbag absorbs instantaneous pressure fluctuations in the pipeline by using elastic deformation, while the rigid porous tube limits the excessive contraction of the airbag to prevent it from blocking the gas passage. When the pressure exceeds the safety threshold, such as when the check valve is blocked, the pressure relief valve automatically opens to release gas. The three work together to smooth out the pulsation caused by the negative pressure pump and prevent the pipeline from collapsing or bursting under extreme conditions, thus ensuring the physical safety of the gas collection system.

[0034] 8. The sponge-like porous plate filling the heating layer works in conjunction with the external insulation wrapping layer and protective shell. The porous plate greatly increases the contact area between the heat transfer fluid and the tank wall, enhancing the turbulent heat transfer effect, while the outer insulation structure effectively blocks the radial loss of heat to the environment. This combination of internal heat transfer enhancement and external heat dissipation resistance significantly reduces the energy consumption required to maintain the fermentation temperature and improves the thermal efficiency of the system.

[0035] 9. The sensor monitor and component analyzer collect data in real time, forming a closed loop with the control processing module and drive components. The sensor not only provides feedback on the physical state but also on the biochemical state. Based on this comprehensive data, the controller calculates and precisely adjusts the actions of the pump, valve, and stirrer. This coordination realizes an intelligent upgrade from physical following to biochemical response, ensuring that the fermentation process is always in the optimal process range.

[0036] 10. When the monitoring and sensing module detects an anomaly, it not only triggers an audible and visual alarm, but also directly controls the emergency stop button of the processing module through the logic circuit to forcibly cut off the power supply. At the same time, the data display module displays the fault point in real time. This deep linkage between software and hardware builds a complete safety chain of perception-warning-cut-off-display, minimizing the risk of accidents and the lag in handling. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the external structure of the fermentation treatment device of the present invention. Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 This is a schematic diagram of the connection of the dual-tank structure of the fermentation treatment device of the present invention; Figure 4 for Figure 3 Another perspective structural diagram; Figure 5 This is a schematic diagram of the internal structure of the fermentation treatment device of the present invention. Figure 6 This is a schematic diagram of the installation and connection of the fermentation treatment system of the present invention.

[0038] Explanation of reference numerals in the attached figures: 1. Acidification fermentation tank; 11. Inlet; 111. Sealing cover; 112. Sealing gasket; 12. Circulating agitator; 121. Circulating cylinder; 13. Filter screen; 131. Settling tank; 132. Slag discharge port; 2. Biogas generator; 21. Separating agitator; 211. Vibrator; 22. Biofilm; 221. Suspension bracket; 23. Three-phase separator; 231. Aeration membrane; 232. Hydrophobic layer; 233. Barrier net. 3. Transfer and delivery pipe; 31. Delivery pump; 311. Water supply pipe; 32. Check valve; 33. Backflush port; 331. High-pressure water pipe; 4. Gas collection pipe; 41. Negative pressure pump; 411. Desulfurization box; 412. Buffer airbag; 42. Pressure relief valve; 421. Flame arrester; 422. Ignition device; 5. Thermal insulation layer; 51. Heating layer; 511. Perforated plate; 512. Water supply pipe; 513. Heater; 52. Protective shell; 6. Control processing module; 61. Control processor; 62. Control signal converter; 63. Emergency stop button; 7. Monitoring and sensing module; 71. Sensor monitor; 72. Component analyzer; 73. Alarm; 8. Data display module; 81. Display; 82. Interactive terminal. Detailed Implementation

[0039] The following will be combined with the appendix Figures 1-6The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0041] Example 1: This invention discloses an organic waste resource-based fermentation treatment device, referring to... Figure 1 and Figure 2 The system includes an acidification fermentation tank 1 and a biogas generator 2, which are interconnected by a transfer and conveying pipe 3. The acidification fermentation tank 1 is used to hydrolyze and acidify organic waste, and the biogas generator 2 is used for microbial decomposition of the hydrolyzed and acidified organic waste to produce biogas. The biogas generator 2 is connected to a gas collection pipe 4 via a pipeline, and the gas collection pipe 4 is externally connected to a gas collection and storage device. Both the acidification fermentation tank 1 and the biogas generator 2 are individually equipped with a heat insulation wrapping layer 5, which is used to regulate the internal ambient temperature of the acidification fermentation tank 1 and the biogas generator 2 respectively. The transfer and conveying pipe 3, the gas collection pipe 4, and the heat insulation wrapping layer 5 are externally connected to a control device.

[0042] Acidification fermenter 1 serves as a pretreatment unit specifically designed for performing hydrolysis and acidification processes. Within this tank, complex organic macromolecules (such as proteins, fats, and carbohydrates) are broken down into smaller organic acids, alcohols, and other intermediate products by hydrolytic and acid-producing bacteria. This process provides readily available substrates for subsequent fermentation.

[0043] Biogas generator 2 serves as a gas production unit specifically designed for the methanogenic process. This tank receives materials processed from acidification fermentation tank 1 and utilizes methanogenic bacteria to further decompose intermediate products such as organic acids, ultimately converting them into methane (biogas) and carbon dioxide.

[0044] The transfer pipe 3 is connected between the outlet of the acidification fermentation tank 1 and the inlet of the biogas generator 2, and is used to transport the acidified slurry from the former to the latter. The pipe is connected to an external control device, which means that it is usually equipped with a controlled fluid transport mechanism to achieve timed and quantitative transfer of materials.

[0045] Both the acidification fermentation tank 1 and the biogas generator 2 are individually equipped with an insulation wrapping layer 5 on their outer walls. This design allows the two tanks to maintain different process temperatures. For example, the acidification stage is usually more efficient in a weakly acidic, medium-temperature environment, while the methanogenesis stage may require a neutral, higher-temperature environment. The insulation wrapping layer 5 not only serves to insulate and reduce heat loss, but also, according to its function of "regulating the internal ambient temperature", it usually integrates a controlled heating medium flow channel or electric heating element, which can actively compensate for the heat loss of the reactor.

[0046] The gas collection pipe 4 is connected to the top or upper space of the biogas generator 2 to export the generated biogas, and its end is connected to a gas collection and storage device (such as a gas storage tank).

[0047] The organic waste to be treated is fed into the acidification fermentation tank 1. The control device sends a command to the insulation layer 5 surrounding the acidification fermentation tank 1 to adjust its heating power, maintaining the temperature range suitable for the growth of hydrolytic acidifying bacteria inside the tank. Under this environment, the waste remains for a predetermined time to complete the initial degradation and acidification. When the material in the acidification fermentation tank 1 reaches the predetermined degree of acidification, the control device sends a signal to start the conveying mechanism related to the transfer and conveying pipe 3. The material is pumped or flows by gravity into the biogas generator 2 through the transfer and conveying pipe 3. This process can be set as continuous feed or intermittent batch conveying according to process requirements. After the material enters the biogas generator 2, the control device independently adjusts the insulation layer 5 outside the tank, usually setting it to a temperature suitable for the activity of methanogenic bacteria. In this stable thermal environment, microorganisms efficiently convert the acidified organic matter into biogas. As the reaction proceeds, the biogas accumulates at the top of the biogas generator 2. The control device monitors or controls the status of the gas collection pipe 4, exporting the generated biogas and transporting it to the subsequent gas collection and storage device for purification and storage, thus completing the recycling of resources.

[0048] Considering that organic acids and hydrogen sulfide, which are corrosive substances, will be produced during the fermentation of organic waste, the acidification fermentation tank 1, the biogas generator 2, and all connecting pipes should be made of corrosion-resistant materials.

[0049] Example 2: Based on Example 1, the following is added: Reference Figure 2 , Figure 3 and Figure 5The acidification fermentation tank 1 has a feed inlet 11 for filling organic waste into the acidification fermentation tank 1. The acidification fermentation tank 1 is equipped with a circulating agitator 12, which drives the organic waste slurry to circulate in a directional manner by stirring with paddles. The acidification fermentation tank 1 is equipped with a filter screen 13, which is used to filter and collect lumpy non-degradable materials.

[0050] Reference Figure 2 , Figure 3 and Figure 5 A sealing cover 111 is installed at the feed inlet 11. The sealing cover 111 is normally closed. A sealing gasket 112 is installed at the contact point between the sealing cover 111 and the feed inlet 11. The circulating agitator 12 is a spiral agitator, and a circulating cylinder 121 is fitted around the outer edge of the circulating agitator 12. The circulating cylinder 121 is suspended in the acidification fermentation tank 1 by a bracket. A settling tank 131 is provided at the bottom of the filter side of the filter screen 13. A slag discharge port 132 is opened at the bottom of the settling tank 131.

[0051] The feed inlet 11 is located on the acidification fermentation tank 1 and serves as a channel for organic waste to enter the tank. A sealing cover 111 is installed at the feed inlet 11. The sealing cover is set to be normally closed and is only opened when feeding. In order to ensure that the anaerobic or hypoxic environment inside the tank is not destroyed and to prevent odor from overflowing, a sealing gasket 112 is installed on the contact surface between the sealing cover 111 and the feed inlet 11. The airtight connection is achieved by using elastic deformation, or the sealing gasket 112 is set as a suction cup structure and the suction cup is used for sealing.

[0052] The circulating agitator 12 is installed inside the tank and adopts a spiral agitator. Its core function is not only to disperse materials, but also to provide fluid power. The circulating cylinder 121 is fitted on the outer edge of the circulating agitator 12 and is suspended and fixed inside the tank by a bracket. When the circulating agitator 12 rotates, the thrust it generates forces the slurry to flow under the constraint of the circulating cylinder 121. The circulating cylinder 121 acts as a guide pipe, eliminating the dead zone of the agitation and forcing the organic waste slurry to form a directional circulating flow from bottom to top in the middle and from top to bottom at the edges, thereby significantly improving the uniformity of material mixing and mass transfer efficiency.

[0053] The filter screen 13 is installed on a specific flow channel section inside the tank. When the slurry flows through the agitator, it passes through the filter screen 13. Blocky non-degradable materials (such as plastic pieces, large bones, stones, etc.) are intercepted on one side of the screen to prevent them from clogging subsequent pipes or affecting fermentation. The settling tank 131 is located at the bottom of the filter screen 13. The settling tank 131 is equipped with collecting fan blades, which rotate with the circulating agitator 12 and push the slurry in the opposite direction to the circulating agitator 12. The intercepted solid impurities settle naturally under gravity and eventually collect in this tank. The slag discharge port 132 is opened at the bottom of the settling tank 131 to periodically discharge the settled heavy waste slag out of the tank.

[0054] The operator or automatic feeding mechanism opens the sealing cover 111 and puts the organic waste into the acidification fermentation tank 1 through the feed port 11. After feeding, the sealing cover 111 is closed immediately, and the sealing gasket 112 is used to press the seal to ensure that the tank is restored to a closed state. The circulating agitator 12 is started, and the rotating agitator blades generate axial thrust, driving the slurry into the circulation cylinder 121. Under the guidance of the circulation cylinder 121, the slurry forms a high-speed jet, driving the surrounding fluid to circulate in a directional manner throughout the tank. This process accelerates the contact between organic matter and acidifying bacteria and promotes hydrolysis reaction. During the circulation of the slurry, the fluid continuously passes through the filter screen 13. At this time, large non-degradable impurities in the slurry are blocked. As the agitation continues or during the standing period when the agitation is stopped intermittently, the intercepted heavy impurities slide down the surface of the filter screen or directly settle into the settling tank 131 at the bottom. When a certain amount of impurities accumulate in the settling tank 131, the slag discharge port 132 at the bottom is opened to discharge the precipitated blocky waste, completing the impurity removal work before fermentation.

[0055] Example 3: Based on Example 1, the following is added: Reference Figure 5 The biogas generator 2 is equipped with a separator and agitator 21. The separator and agitator 21 agitates and drives the organic waste slurry to flow vertically from bottom to top. The biogas generator 2 is equipped with biofilms 22 at intervals. The biofilms 22 are used to degrade microbial attachment. A three-phase separator 23 is provided at the top of the inner cavity of the biogas generator 2. The three-phase separator 23 is used to separate and collect biogas.

[0056] Reference Figure 5The biogas generator 2 is equipped with a vibrator 211, which generates vibration through a vibrating motor and agitates the organic waste slurry. The biofilm 22 is installed inside the biogas generator 2 via a suspension bracket 221. The three-phase separator 23 is equipped with a permeable membrane 231, which is used to separate gas from the organic waste slurry. A hydrophobic layer 232 is provided on the surface of the permeable membrane 231 facing the inner cavity of the biogas generator 2. A barrier net 233 is installed on the side of the permeable membrane 231 that is in contact with the organic waste slurry, which is used to separate solids and liquids.

[0057] The separator 21 is installed inside the tank. Its blade design is specially optimized. When rotating, it generates an upward thrust, driving the organic waste slurry at the bottom to flow vertically from bottom to top. This flow design can effectively prevent the accumulation of mud at the bottom and quickly bring the generated biogas bubbles to the liquid surface. The vibrator 211 is installed inside the biogas generator 2. It has a built-in vibration motor. Its working principle is to vibrate the organic waste slurry through high-frequency vibration. The vibration wave propagates in the slurry, which can effectively destroy the surface tension and internal flocculation structure of the slurry, help the bubbles detach from the viscous slurry, and prevent the crusting of the scum layer.

[0058] The biofilm 22 is a high specific surface area filler or membrane that serves as a growth carrier for microorganisms such as methanogens. The suspension bracket 221 is used to install the biofilm 22 at intervals inside the biogas generator 2. The biofilm 22 is distributed three-dimensionally in the slurry flow channel through the suspension bracket 221. Microorganisms attach to the membrane surface to form a high-concentration biofilm. When the slurry flows through these membranes under the drive of the agitator, organic matter comes into full contact with microorganisms and is degraded. This immobilized microbial technology has higher biomass and resistance to shock loads than simple suspension growth.

[0059] The three-phase separator 23 is located at the top of the inner cavity of the biogas generator 2 and is the core component for achieving gas-liquid-solid separation. The three-phase separator 23 integrates a composite separation membrane assembly. The barrier net 233 is located on the outermost layer and is in direct contact with the organic waste slurry. Its function is to physically intercept and block solid particles and flocs in the slurry outside the separator, thereby achieving solid-liquid separation. The permeable membrane 231 is located behind the barrier net and serves as the core separation medium. This membrane has selective permeability, allowing gas molecules to pass through but blocking liquid molecules. The hydrophobic layer 232 is located on the side of the permeable membrane 231 facing the inner cavity of the tank, i.e., the water-facing side. This layer has low surface energy and prevents water in the slurry from wetting or clogging the micropores of the permeable membrane, ensuring unobstructed gas passages and greatly improving separation efficiency and membrane lifespan.

[0060] The separator 21 is activated, and the rotating blades generate vertical lift, forcing the slurry at the bottom to surge upwards, passing through the suspended biofilm 22. This bottom-up flow not only ensures uniform temperature and concentration but also continuously replenishes fresh substrate for the microorganisms attached to the membrane. During fermentation, the vibrator 211 is activated periodically or continuously. The high-frequency vibration energy generated by the vibrating motor is transferred to the slurry, breaking down the viscosity of the air bubbles trapped in the slurry, causing tiny biogas bubbles to aggregate into large flag bubbles and accelerate their upward movement. Simultaneously, vibration prevents solid particles from accumulating in dead zones. The slurry flows through the biofilm 22. In zone 2, the high-density methanogenic bacteria on the membrane surface deeply degrade organic acids and other substances in the slurry, producing a large amount of methane and carbon dioxide gas. The slurry, which is a mixture of gas, liquid and solid, rises to the top of the tank and contacts the three-phase separator 23. Solid impurities in the slurry are blocked by the barrier net 233 and fall back into the tank under gravity. The gas and liquid contact the hydrophobic layer 232 on the surface of the permeable membrane 231. The liquid is repelled by the hydrophobic layer and cannot enter the membrane pores, while the biogas passes smoothly through the hydrophobic layer and the permeable membrane 231 into the internal chamber of the separator. The separated pure biogas is discharged and collected through a pipeline.

[0061] Example 4: Based on Example 1, the following is added: Reference Figure 3 and Figure 4 A transfer pump 31 is connected to and installed on the transfer and conveying pipe 3. The transfer pump 31 is connected to an external water supply device through a water replenishment pipe 311. A check valve 32 is installed on the pipe connecting the transfer pump 31 to the biogas generator 2. The check valve 32 controls the unidirectional flow of organic waste slurry from the acidification fermentation tank 1 to the biogas generator 2. A backflow port 33 is provided at the starting end of the unidirectional flow of the check valve 32. The backflow port 33 is connected to an external water supply device through a high-pressure water pipe 331.

[0062] The transfer pipe 3, serving as the main pipeline connecting the two tanks, is responsible for transporting the acidified organic waste slurry to the next process. A transfer pump 31 is installed on the transfer pipe 3 to provide fluid power. A water supply pipe 311 is connected to the transfer pump 31 and is connected to an external water supply device. Its function is twofold: firstly, it can introduce priming water before pump startup; secondly, when the concentration or viscosity of the transported slurry is too high, it can directly add water to the pump chamber for online dilution, reducing transport resistance and preventing pump cavitation or overload. A check valve 32 is installed on the pipeline section between the transfer pump 31 and the biogas generator 2; its core function is unidirectional flow. The system allows slurry to flow only from the acidification fermentation tank 1 to the biogas generator 2. When the pump stops working, the valve automatically closes to prevent the material in the biogas generator 2 from flowing back to the front pipeline due to pressure difference or gravity. The backflush port 33 is located at the beginning of the one-way passage of the check valve 32, that is, on the upstream side of the check valve. The high-pressure water pipe 331 connects the backflush port 33 to the external high-pressure water source. Its principle is to use high-pressure water jet to flush the pipeline before the check valve 32. Since the slurry contains solid particles, it is easy to deposit at the valve inlet, causing blockage or valve not closing tightly. High-pressure water is injected through the backflush port 33 to force the sediment to disperse and unclog the pipeline.

[0063] Before starting the conveying process, if the slurry viscosity is determined to be too high, first open the control valve on the water supply pipe 311 to inject an appropriate amount of water into the conveying pump 31. This not only lubricates the pump body but also dilutes and conditions the first stream of slurry that is about to enter. Start the conveying pump 31, and under the action of pump pressure, the organic waste slurry flows along the transfer conveying pipe 3, opens the valve disc of the check valve 32, and smoothly enters the biogas generator 2. After the conveying task is completed, turn off the conveying pump 31. At this time, the check valve 32 closes quickly under the action of spring force or medium backflow pressure, cutting off the passage and ensuring that the anaerobic environment and gas pressure in the biogas generator 2 are not affected, while preventing material backflow.

[0064] When an abnormal increase in conveying resistance is detected, or before a long-term shutdown for maintenance, a backflushing operation is required. The operator opens the valve of the high-pressure water pipe 331, and the high-pressure water flows into the pipeline through the backflushing port 33. Since the backflushing port is located at the beginning of the check valve 32, the high-pressure water will strongly turbulently and flush the dead corner at the inlet of the check valve, dispersing the deposited mud, sand, fibers and other solid impurities, preventing them from caking and causing the check valve to jam.

[0065] Reference Figures 1-4 A negative pressure pump 41 is connected to and installed on the gas collection pipe 4. One end of the gas collection pipe 4 is connected to a desulfurization box 411. A buffer airbag 412 is installed on the pipe connecting the negative pressure pump 41 and the biogas generator 2. The buffer airbag 412 is wrapped around a rigid porous pipe. A pressure relief valve 42 is connected to and installed on one side of the buffer airbag 412. A flame arrester 421 and an igniter 422 are installed at the pressure relief outlet of the pressure relief valve 42.

[0066] Gas collection pipe 4 serves as the main channel for biogas extraction. Negative pressure pump 41 is installed on gas collection pipe 4. Its function is to actively establish a negative pressure environment in the pipeline, overcome pipeline resistance and back pressure of downstream equipment, stably extract biogas generated in biogas generator 2, and transport it to downstream equipment. Desulfurization box 411 is connected to the outlet of gas collection pipe 4. It is usually filled with desulfurizing agents such as iron oxide. The principle is to remove highly corrosive hydrogen sulfide gas in biogas through chemical adsorption, protect downstream equipment, and improve fuel quality.

[0067] A rigid porous tube is installed in the pipeline as a supporting frame. The buffer airbag 412 is wrapped around the rigid porous tube and installed on the pipeline between the negative pressure pump 41 and the biogas generator 2. When the gas production of the biogas generator 2 fluctuates or the suction force of the negative pressure pump 41 changes, the gas enters or flows out of the airbag through the pores of the rigid porous tube. The airbag uses its own elastic expansion or contraction to temporarily store or release the gas, which plays a role in energy storage. It effectively suppresses the pressure pulsation in the pipeline and prevents the tank from collapsing due to excessive negative pressure or the pump from being damaged due to excessive positive pressure.

[0068] The pressure relief valve 42 is connected to one side of the buffer airbag 412. When the gas pressure in the system exceeds the preset safety threshold, the valve automatically opens to release gas and prevent overpressure explosion. The flame arrester 421 is installed at the pressure relief outlet. Its interior is composed of a fine metal mesh or corrugated plate. The principle is to use the wall effect and heat dissipation to prevent the flame from spreading into the pipe and prevent backfire from causing a system explosion. The igniter 422 is located after the flame arrester 421. When the pressure relief valve 42 releases excess biogas, the igniter automatically or manually ignites the released biogas, burning methane, a strong greenhouse gas, into carbon dioxide and avoiding direct release into the atmosphere to cause pollution.

[0069] Reference Figures 1-5 A heating layer 51 is provided inside the heat insulation wrapping layer 5. The heating layer 51 is closely attached to the acidification fermentation tank 1 and the biogas generator 2. A perforated plate 511 is provided inside the heating layer 51. The perforated plate 511 has a sponge-like structure and is connected to a water supply pipe 512 at both ends. One end of the water supply pipe 512 is connected to a heater 513. A protective shell 52 is wrapped around the outside of the heat insulation wrapping layer 5.

[0070] The heating layer 51 is tightly attached to the outer wall of the acidification fermentation tank 1 and the biogas generator 2, and is the direct interface for heat transfer. The porous plate 511 is set inside the heating layer 51 and has a sponge-like structure. Its function is to utilize the high porosity and huge specific surface area of ​​the sponge-like porous structure to form a uniform heat flow distribution when hot water flows through it, avoiding local overheating or uneven heating that may be caused by traditional coil heating, and ensuring uniform heating of the tank wall. The water supply pipe 512 is connected to both ends of the porous plate 511 to form the inlet and outlet channels of the heat medium. The heater 513 is connected to the outlet end of the water supply pipe 512 and its function is to heat the circulating water to reach the process temperature required for fermentation.

[0071] The thermal insulation layer 5 is located outside the heating layer 51. Its main function is to block heat loss to the external environment, lock the heat in the direction of the tank, improve the efficiency of thermal energy utilization, and reduce energy consumption. The protective shell 52 is wrapped around the outermost part of the thermal insulation layer 5. Its principle is to provide a physical barrier to prevent the internal thermal insulation material from getting damp, aging, or mechanically damaged, while also serving to protect against wind and rain and beautify the appearance.

[0072] Heating medium water is injected into the system through water supply pipe 512. The water flows into the interior of heating layer 51, permeates and fills the sponge-like structure pores of porous plate 511, ensuring sufficient heat conduction contact between the heating medium and the outer wall of the tank. Heater 513 is turned on, and the heater heats the water in water supply pipe 512 to a preset temperature. The hot water is transported through pipe to one end of porous plate 511. As it flows through the sponge-like structure, it releases heat evenly to the metal walls of acidification fermentation tank 1 and biogas generator tank 2, thereby heating the fermentation liquid in the tank. During the heating process, the external heat insulation layer 5 works continuously to reduce heat radiation outward. The protective shell 52 protects the entire system from the influence of the external environment, ensuring that the heating operation can be carried out stably under various weather conditions. The water that has cooled down after heat exchange flows out from the other end of porous plate 511 and flows back to heater 513 through return water pipe for reheating, forming a closed loop to maintain a constant temperature in the fermentation tank.

[0073] Example 5: This invention discloses an organic waste resource-based fermentation treatment system, referring to... Figure 6The system includes a control processing module 6 and a monitoring and sensing module 7. The control processing module 6 controls the drive components of the fermentation treatment device, and the monitoring and sensing module 7 monitors the working data of the fermentation treatment device and sends it to the control processing module 6. The control processing module 6 is connected to the monitoring and sensing module 7 via a data cable and controls and adjusts the drive components of the fermentation treatment device according to the working data monitored by the monitoring and sensing module 7. The control processing module 6 and the monitoring and sensing module 7 are connected to a data display module 8 via a control transmission cable and a data transmission cable, respectively. The data display module 8 is used to display data information and facilitate human-machine interaction.

[0074] Reference Figure 6 The control processing module 6 includes a control processor 61, a control signal converter 62, and an emergency stop button 63. The control processor 61 is used for data processing and software operation. The control signal converter 62 is used to convert the control data of the control processor 61 into drive electrical signals. The emergency stop button 63 is used for manual or automatic emergency stop operation. The monitoring and sensing module 7 includes a sensor monitor 71, a component analyzer 72, and an alarm 73. The sensor monitor 71 is installed at the monitoring point of the fermentation treatment device to monitor the temperature, pressure, and flow rate of the fermentation treatment device. The component analyzer 72 is installed inside the fermentation treatment device to analyze the components and concentrations inside the fermentation treatment device. The alarm 73 is used to display abnormalities detected by the sensor monitor 71 and the component analyzer 72. The data display module 8 includes a display 81 and an interactive terminal 82.

[0075] The control processor 61 serves as the central processing unit, pre-installed with fermentation process control software. Its principle is to receive real-time data from the monitoring and sensing module 7, perform algorithm calculations, and generate corresponding control commands. The control signal converter 62 is connected between the processor and the drive components. Its function is to convert the low-voltage, low-current digital signals (i.e., logic signals) output by the processor into high-power drive signals, such as analog voltage, current, or PWM signals, that can drive actuators such as motors, pumps, and valves. The emergency stop button 63 is connected to the control loop. It has physical interrupt or high-priority logic interrupt functions, used to instantly cut off the critical power supply of the system or send a forced stop command in case of an emergency, ensuring the safety of personnel and equipment.

[0076] Sensors 71 are installed at key monitoring points in the fermentation unit, such as tanks and pipe interfaces. They convert physical quantities into electrical signals and provide real-time feedback on the physical operating status of the system. The component analyzer 72 probe extends into the fermentation unit, such as below the liquid surface or in the gas chamber. Using electrochemical, optical, or biological sensor principles, it analyzes the pH value, methane content, dissolved oxygen, and other chemical components and concentrations of the fermentation broth online to determine the fermentation process.

[0077] The alarm 73 is directly linked to the processor or sensor. When the monitored value exceeds the set safety threshold, it will issue an alarm through sound and light signals to remind the operator to pay attention.

[0078] The display 81 receives information through a data transmission cable and displays the abstract monitoring data and equipment status in a graphical user interface (GUI). The interactive terminal 82 is usually a touch screen, keyboard or control panel, which allows operators to input commands, modify parameters or switch working modes to realize information exchange between people and machines.

[0079] Operators input fermentation process parameters, such as target fermentation temperature, pressure limit, and stirring cycle, through the interactive terminal 82. These instructions are transmitted to the control processor 61 via data cables for storage and analysis. During system operation, the sensor monitor 71 collects real-time data on the fermenter's temperature, pressure, and pipeline flow rate, while the component analyzer 72 simultaneously analyzes the component concentration of the fermentation broth inside the tank. The collected raw data is sent to the control processor 61 via data cables and simultaneously transmitted to the display 81 for personnel to view. The control processor 61 compares the received real-time data with preset parameters. If the temperature is lower than the set value, the processor issues a heating command; if the pressure is close to the threshold, the processor issues an exhaust command. After the commands are amplified and converted by the control signal converter 62, they drive the corresponding heaters, valves, or pumps to achieve automatic adjustment. If the monitored data shows serious abnormalities, such as excessive pressure or toxic gas leakage, the alarm 73 immediately activates an audible and visual alarm. The control processor 61 can automatically trigger a shutdown according to preset logic. After hearing the alarm, on-site personnel can directly press the emergency stop button 63 to forcibly stop the operation of all drive components and prevent the accident from escalating.

[0080] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the invention, and all such modifications and additions should fall within the protection scope of the present invention.

Claims

1. An organic waste resource utilization fermentation treatment device, comprising an acidification fermentation tank (1) and a biogas generator (2), wherein the acidification fermentation tank (1) and the biogas generator (2) are interconnected via a transfer and conveying pipe (3), wherein the acidification fermentation tank (1) is used for hydrolyzing and acidifying organic waste, and the biogas generator (2) is used for microbial decomposition of the hydrolyzed and acidified organic waste to generate biogas, characterized in that: The biogas generator (2) is connected to the gas collection pipe (4) via a pipeline. The gas collection pipe (4) is connected to a gas collection and storage device. The acidification fermentation tank (1) and the biogas generator (2) are each provided with a separate heat insulation wrapping layer (5). The heat insulation wrapping layer (5) is used to adjust the internal ambient temperature of the acidification fermentation tank (1) and the biogas generator (2) respectively. The transfer and delivery pipe (3), the gas collection pipe (4) and the heat insulation wrapping layer (5) are connected to an external control device.

2. The organic waste resource utilization fermentation treatment device according to claim 1, characterized in that: The acidification fermentation tank (1) has a feed inlet (11) for filling the acidification fermentation tank (1) with organic waste. The acidification fermentation tank (1) is equipped with a circulating agitator (12), which stirs and drives the organic waste slurry to circulate in a directional manner through paddles. The acidification fermentation tank (1) is equipped with a filter screen (13), which is used to filter and collect blocky non-degradable materials.

3. The organic waste resource utilization fermentation treatment device according to claim 2, characterized in that: A sealing cover (111) is installed at the feed inlet (11). The sealing cover (111) is normally closed. A sealing gasket (112) is installed at the contact point between the sealing cover (111) and the feed inlet (11). The circulating agitator (12) is a spiral agitator. A circulating cylinder (121) is fitted on the outer edge of the circulating agitator (12). The circulating cylinder (121) is suspended in the acidification fermentation tank (1) by a bracket. A settling tank (131) is provided at the bottom of the filter screen (13) on the filter side. A slag discharge port (132) is opened at the bottom of the settling tank (131).

4. The organic waste resource utilization fermentation treatment device according to claim 1, characterized in that: The biogas generator (2) is equipped with a separator agitator (21). The separator agitator (21) uses paddles to agitate and drive the organic waste slurry to flow vertically from bottom to top. The biogas generator (2) is equipped with biofilms (22) at intervals. The biofilms (22) are used to degrade microbial attachment. The top of the inner cavity of the biogas generator (2) is equipped with a three-phase separator (23). The three-phase separator (23) is used to separate and collect biogas.

5. The organic waste resource utilization fermentation treatment device according to claim 4, characterized in that: The biogas generator (2) is equipped with a vibrator (211), which vibrates and agitates the organic waste slurry by means of a vibrating motor. The biofilm (22) is installed in the biogas generator (2) by means of a suspension bracket (221). The three-phase separator (23) is equipped with a permeable membrane (231), which is used to separate gas from the organic waste slurry. The surface of the permeable membrane (231) facing the inner cavity of the biogas generator (2) is provided with a hydrophobic layer (232). The side of the permeable membrane (231) in contact with the organic waste slurry is equipped with a barrier net (233), which is used to separate solids and liquids.

6. The organic waste resource utilization fermentation treatment device according to claim 1, characterized in that: A transfer pump (31) is connected and installed on the transfer pipe (3). The transfer pump (31) is connected to an external water supply device through a water supply pipe (311). A check valve (32) is installed on the pipe connecting the transfer pump (31) and the biogas generator (2). The check valve (32) controls the organic waste slurry to flow unidirectionally from the acidification fermentation tank (1) to the biogas generator (2). A backflow port (33) is provided at the beginning of the unidirectional flow of the check valve (32). The backflow port (33) is connected to an external water supply device through a high-pressure water pipe (331).

7. The organic waste resource utilization fermentation treatment device according to claim 1, characterized in that: A negative pressure pump (41) is connected to and installed on the gas collection pipe (4). One end of the gas collection pipe (4) is connected to a desulfurization box (411). A buffer airbag (412) is installed on the pipe connecting the negative pressure pump (41) and the biogas generator (2). The buffer airbag (412) is wrapped in a rigid porous pipe. A pressure relief valve (42) is connected to and installed on one side of the buffer airbag (412). A flame arrester (421) and an igniter (422) are installed at the pressure relief outlet of the pressure relief valve (42).

8. The organic waste resource utilization fermentation treatment device according to claim 1, characterized in that: A heating layer (51) is provided inside the heat insulation wrapping layer (5). The heating layer (51) is closely attached to the acidification fermentation tank (1) and the biogas generator (2). A perforated plate (511) is provided inside the heating layer (51). The perforated plate (511) has a sponge-like structure and is connected to a water supply pipe (512) at both ends. One end of the water supply pipe (512) is connected to a heater (513). A protective shell (52) is wrapped around the outside of the heat insulation wrapping layer (5).

9. An organic waste resource-based fermentation treatment system, applied to the organic waste resource-based fermentation treatment device according to any one of claims 1-8, characterized in that: The device includes a control processing module (6) and a monitoring and sensing module (7). The control processing module (6) is used to control the driving components of the fermentation treatment device. The monitoring and sensing module (7) is used to monitor the working data of the fermentation treatment device and send it to the control processing module (6). The control processing module (6) is connected to the monitoring and sensing module (7) through a data wire and controls and adjusts the driving components of the fermentation treatment device according to the working data of the fermentation treatment device monitored by the monitoring and sensing module (7). The control processing module (6) and the monitoring and sensing module (7) are respectively connected to a data display module (8) through a control transmission wire and a data transmission wire. The data display module (8) is used to display data information and perform human-computer interaction operations.

10. The organic waste resource utilization fermentation treatment system according to claim 9, characterized in that: The control processing module (6) includes a control processor (61), a control electrical signal converter (62), and an emergency stop button (63). The control processor (61) is used for data processing and software operation. The control electrical signal converter (62) is used to convert the control data of the control processor (61) into drive electrical signals. The emergency stop button (63) is used for manual or automatic emergency stop operation. The monitoring and sensing module (7) includes a sensor monitor (71), a component analyzer (72), and an alarm (73). The sensor monitor (71) is installed at the monitoring point of the fermentation treatment device to monitor the temperature, pressure, and flow rate of the fermentation treatment device. The component analyzer (72) is installed inside the fermentation treatment device to analyze the components and concentrations inside the fermentation treatment device. The alarm (73) is used to display the abnormal conditions detected by the sensor monitor (71) and the component analyzer (72). The data display module (8) includes a display (81) and an interactive terminal (82).

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