A fully automatic continuous feeding anaerobic digestion parameter measuring instrument

Abstract

This invention discloses a fully automatic continuous-feed anaerobic digestion parameter measuring instrument, belonging to the field of anaerobic fermentation technology. It includes a first frame, on which multiple fermentation units, multiple feeding units, a lifting execution unit, a lifting control unit, and a whole-machine control unit are respectively arranged. Each fermentation unit includes a fermentation tank with a feeding valve at the bottom, fixedly connected to the first frame. A first stirring mechanism is located at the top of the fermentation tank, and a monitoring mechanism is located inside the fermentation tank. A discharge mechanism is located on one side of the fermentation tank. Each feeding unit includes a storage tank, with a second stirring mechanism at the top and fixedly connected to the first frame. A pushing mechanism is slidably connected inside the storage tank. This invention can simulate the continuous-feed anaerobic fermentation conditions in actual engineering, achieving intelligent control of the fermentation process through real-time acquisition of multiple parameters and evaluation of fermentation status, obtaining accurate real-time data on anaerobic fermentation gas production characteristics and feed liquid characteristics.

Description

Technical Field

[0001] This invention belongs to the field of anaerobic fermentation technology, and in particular relates to a fully automatic continuous feeding anaerobic digestion parameter measuring instrument. Background Technology

[0002] Anaerobic fermentation research is an important development direction for future clean energy production. Microbial fermentation can not only produce clean fuels but also effectively treat agricultural and livestock waste, yielding high-quality organic fertilizers. Modern farms generate agricultural waste continuously and in enormous quantities, thus requiring efficient anaerobic fermentation systems for continuous waste treatment. Improving the efficiency of continuous-feed fermentation systems is a crucial issue. In laboratories, miniaturized equipment is typically used to study this process. By analyzing substrate changes and gas production efficiency during fermentation, fermentation patterns are summarized to guide practical anaerobic fermentation engineering.

[0003] Currently, most laboratories use batch fermentation systems. However, because the feeding and control of such fermentation systems are discrete, there are certain limitations in the research on continuous feeding anaerobic fermentation, and it cannot fully simulate the actual production process. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic continuous feeding anaerobic digestion parameter measuring instrument to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a fully automatic continuous feeding anaerobic digestion parameter measuring instrument, including a first frame, on which multiple fermentation units, multiple feeding units, a lifting execution unit, a lifting control unit, and a whole machine control unit are respectively arranged. The fermentation unit includes a fermentation tank, and a feeding valve is provided at the bottom of the fermentation tank. The feeding valve is connected to the feeding unit and fixedly connected to the first frame. A first stirring mechanism is provided at the top of the fermentation tank. A monitoring mechanism is provided inside the fermentation tank. A discharge mechanism is provided on one side of the fermentation tank. The feeding unit includes a storage tank, and a second stirring mechanism is provided at the top of the storage tank. The storage tank is fixedly connected to the first frame. A pushing mechanism is slidably connected inside the storage tank and is drivenly connected to the lifting execution unit.

[0006] Optionally, the top of the fermentation tank is provided with a fermentation tank cover, and the first stirring mechanism includes a stirring motor flange fixed to the top surface of the fermentation tank cover. A stirring motor is fixed to the top surface of the stirring motor flange. The output shaft of the stirring motor passes through the fermentation tank cover and is fixed to a stirring shaft coupling. The stirring shaft coupling is located inside the fermentation tank. A high-viscosity stirring shaft is fixed to the stirring shaft coupling, and a high-viscosity stirring paddle is fixed to the high-viscosity stirring shaft.

[0007] Optionally, the monitoring mechanism includes a water quality sensor installed on the fermentation tank cover, an exhaust port on the top surface of the fermentation tank cover for connecting a gas flow monitoring device, and an integrated temperature control heating belt outside the fermentation tank.

[0008] Optionally, the gas flow monitoring device includes a second frame, in which a gas composition analysis system and a gas flow meter are respectively installed. The second frame is equipped with a gas guiding pipe array, which is connected to the fermentation unit. The gas guiding pipe array is equipped with a gas guiding valve.

[0009] Optionally, the discharge mechanism includes a discharge valve connected to the fermentation tank, and the discharge valve is connected to a discharge bottle via a discharge adapter flange.

[0010] Optionally, the top of the storage tank cylinder is provided with a fermentation tank feed valve interface, which is connected to the feed valve. A storage tank feed valve interface is provided on one side of the storage tank cylinder, and a storage tank feed valve is provided outside the storage tank feed valve interface.

[0011] Optionally, the second stirring mechanism includes a dispersing stirring motor stirring flange interface fixedly connected to the first frame, a dispersing stirring motor stirring flange fixedly connected inside the dispersing stirring motor stirring flange interface, a dispersing stirring motor fixedly connected to the dispersing stirring motor stirring flange, a dispersing stirring shaft fixedly connected to the output shaft of the dispersing stirring motor, and a dispersing paddle fixedly connected to the dispersing stirring shaft.

[0012] Optionally, the pushing mechanism includes a piston slidably connected to the cylinder of the storage tank, a piston rod fixedly connected to the bottom surface of the piston, an adjusting nut provided at the bottom of the piston rod, and the adjusting nut fixedly connected to the lifting execution unit.

[0013] Optionally, the first frame includes a base sheet metal box, with casters installed at the four corners of the bottom surface of the base sheet metal box. Support sheet metal is symmetrically fixed to both sides of the base sheet metal box, and a connecting fixing block is fixed between two oppositely arranged support sheet metal. The connecting fixing block has multiple cavities and multiple sets of fixing holes. The cavities are fixed and connected to the fermentation tank feed valve interface, the dispersion stirring motor stirring flange interface, and the storage tank feed valve interface, respectively. A storage tank end cap is fixed to the bottom of the storage tank cylinder, and pull rods are fixed to the four corners of the storage tank end cap. The pull rods are fixed to the fixing holes. The dispersion paddle is located in the cavity, and the lifting control unit is provided on the connecting fixing block.

[0014] Optionally, the lifting control unit includes a lifting motor mounting base fixedly connected to the connecting fixed block. A synchronous lifting motor is fixedly connected to the lifting motor mounting base. A synchronous motor coupling is fixedly connected to the output shaft of the synchronous lifting motor. The synchronous motor coupling is located on the top surface of the connecting fixed block. A lead screw is fixedly connected to the synchronous motor coupling through a guide bearing. A lead screw nut is threaded onto the lead screw. A lifting crossbeam is fixedly connected to the lead screw nut. The lifting crossbeam is fixedly connected to the adjusting nut.

[0015] Optionally, the first frame is further provided with a sheet metal box for the lifting motor control unit. Above the sheet metal box for the lifting motor control unit is a sheet metal support for the whole machine control unit. The lifting control unit includes two synchronous lifting motor controllers, a safety switch and a DC power supply, which are disposed in the sheet metal box for the lifting motor control unit. The synchronous lifting motor controllers are electrically connected to the synchronous lifting motors.

[0016] Optionally, the whole machine control unit is fixed above the whole machine control unit support sheet metal by two support columns. Two cable management channels are fixed between the two support columns. Six electronic speed controllers are installed inside each cable management channel. A rocker arm is installed on one of the support columns, and a master controller is installed at the end of the rocker arm.

[0017] The present invention discloses the following technical effects: the feeding unit is used to provide continuous feeding to the fermentation unit, and its feeding amount is adjusted by the displacement of the pushing mechanism; the lifting execution unit is used to drive the pushing mechanism to change the feeding amount per unit time; the lifting control unit is used to provide driving current and control signals to the lifting execution unit; the whole machine control unit sends control commands to the lifting control unit, the first stirring mechanism, the second stirring mechanism and the monitoring mechanism, thereby forming a closed-loop intelligent control system based on fermentation status feedback.

[0018] This invention can monitor the degradation dynamics of various organic materials under different temperature, humidity, moisture and other environmental parameters during continuous feeding anaerobic fermentation in real time, evaluate the changes in their physicochemical properties after fermentation and return to the field, track greenhouse gas emissions, and comprehensively analyze the migration and transformation of key elements such as carbon and nitrogen in the decomposition and return to the field of organic materials, so as to realize dynamic monitoring and data collection of the whole process.

[0019] This invention can simulate the continuous feeding anaerobic fermentation conditions in actual engineering, improving the realism of experimental research; it achieves intelligent control of the fermentation process through real-time acquisition of multiple parameters and evaluation of fermentation status; it improves the operational stability of the fermentation system by dynamically adjusting feeding, stirring, and temperature parameters through closed-loop control; it can automatically adjust control parameters according to changes in fermentation status, reducing the need for manual intervention and improving experimental repeatability and stability; and it improves the operational reliability of the continuous feeding anaerobic fermentation system by predicting the state and trend of the fermentation process through monitoring mechanisms and the overall control unit. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the fully automatic continuous feeding anaerobic digestion parameter measuring instrument of the present invention; Figure 2 This is a schematic diagram of the fermentation unit of the present invention; Figure 3 This is a schematic diagram of the feeding unit of the present invention; Figure 4 This is a schematic diagram of the structure of the first frame of the present invention; Figure 5 This is a schematic diagram of the lifting execution unit of the present invention; Figure 6 This is a schematic diagram of the lifting control unit of the present invention; Figure 7 This is a schematic diagram of the overall control unit of the present invention; Figure 8 This is a schematic diagram of the gas flow monitoring device of the present invention.

[0021] Figure label: 1. Fermentation unit; 2. Feeding unit; 3. First frame; 4. Lifting execution unit; 5. Lifting control unit; 6. Overall control unit; 7. Gas flow monitoring equipment; 101. Stirring motor; 102. Exhaust port; 103. Discharge valve; 104. Discharge bottle; 105. Fermentation tank; 106. Feeding valve; 107. Integrated temperature-controlled heating belt; 108. High-viscosity stirring paddle; 109. High-viscosity stirring shaft; 110. Stirring shaft coupling; 111. Water quality transmission... Sensor; 112. Fermentation tank cover; 113. Stirring motor flange; 114. Discharge adapter flange; 201. Fermentation tank feed valve interface; 202. Storage tank feed valve; 203. Tie rod; 204. Storage tank end cover; 205. Storage tank cylinder; 206. Adjusting nut; 207. Storage tank feed valve interface; 208. Piston rod; 209. Piston; 210. Dispersion paddle; 211. Dispersion stirring shaft; 212. Dispersion stirring motor stirring flange interface; 21 3. Dispersing and mixing motor flange; 214. Dispersing and mixing motor; 301. Wiring harness holder; 302. Main control switch; 303. Lifting motor mounting base; 304. Connecting fixing block; 305. Support sheet metal; 306. Casters; 307. Base sheet metal box; 308. Lifting motor control unit sheet metal box; 309. Whole machine control unit support sheet metal; 401. Synchronous lifting motor; 402. Synchronous motor coupling; 403. Lead screw nut; 404. Lifting crossbar Beam; 405, Support bearing housing; 406, Lead screw; 407, Guide bearing; 501, DC power supply; 502, Insulation box; 503, Safety switch; 504, Lifting motor controller; 601, Main controller; 602, Cable tray; 603, Electronic speed controller; 604, Support column; 605, Rocker arm; 701, Air duct array; 702, Air valve; 703, Gas composition analysis system; 704, Gas flow meter; 705, Second frame. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1 to 8As shown, this embodiment provides a fully automatic continuous feeding anaerobic digestion parameter measuring instrument, including a first frame 3. The first frame 3 is respectively provided with multiple fermentation units 1, multiple feeding units 2, a lifting execution unit 4, a lifting control unit 5, and a whole machine control unit 6. The fermentation unit 1 includes a fermentation tank 105. The bottom of the fermentation tank 105 is provided with a feeding valve 106, which is connected to the feeding unit 2. The feeding valve 106 is fixedly connected to the first frame 3. The top of the fermentation tank 105 is provided with a first stirring mechanism. The fermentation tank 105 is provided with a monitoring mechanism. The side of the fermentation tank 105 is provided with a discharge mechanism. The feeding unit 2 includes a storage tank 205. The top of the storage tank 205 is provided with a second stirring mechanism. The storage tank 205 is fixedly connected to the first frame 3. A pushing mechanism is slidably connected inside the storage tank 205. The pushing mechanism is drivenly connected to the lifting execution unit 4.

[0025] Feeding unit 2 is used to provide continuous feed to fermentation unit 1, and its feed amount is adjusted by the displacement of the pushing mechanism; lifting execution unit 4 is used to drive the pushing mechanism to change the feed amount per unit time; lifting control unit 5 is used to provide driving current and control signals to lifting execution unit 4; the whole machine control unit 6 sends control commands to lifting control unit 5, first stirring mechanism, second stirring mechanism and monitoring mechanism, thereby forming a closed-loop intelligent control system based on fermentation status feedback.

[0026] This invention can simulate the continuous feeding anaerobic fermentation conditions in actual engineering, improving the realism of experimental research; it achieves intelligent control of the fermentation process through real-time acquisition of multiple parameters and evaluation of fermentation status; it improves the operational stability of the fermentation system by dynamically adjusting feeding, stirring, and temperature parameters through closed-loop control; it can automatically adjust control parameters according to changes in fermentation status, reducing the need for manual intervention and improving experimental repeatability and stability; and it improves the operational reliability of the continuous feeding anaerobic fermentation system by predicting the state and trend of the fermentation process through the monitoring mechanism and the whole machine control unit 6.

[0027] In a further optimized design, the top of the fermentation tank 105 is provided with a fermentation tank cover 112. The first stirring mechanism includes a stirring motor flange 113 fixed to the top surface of the fermentation tank cover 112. A stirring motor 101 is fixed to the top surface of the stirring motor flange 113. The output shaft of the stirring motor 101 passes through the fermentation tank cover 112 and is fixed to a stirring shaft coupling 110. The stirring shaft coupling 110 is located inside the fermentation tank 105. A high-viscosity stirring shaft 109 is fixed to the stirring shaft coupling 110. A high-viscosity stirring paddle 108 is fixed to the high-viscosity stirring shaft 109.

[0028] The design is further optimized so that the discharge mechanism includes a discharge valve 103 connected to the fermentation tank 105, and the discharge valve 103 is connected to a discharge bottle 104 through a discharge adapter flange 114.

[0029] The core of fermentation unit 1 is a fermentation tank 105 with a cylindrical upper part and a conical lower part. The fermentation tank 105 and the fermentation tank cover are sealed together by quick-release sanitary clamps. The high-viscosity stirring shaft 109 is trilobed. The fermentation tank cover 112 also has three pre-drilled sensor mounting thread holes for fixing the water quality sensor 111 to detect the current state of the fermentation substrate. The discharge valve 103 is a three-way structure with an L-shaped valve core. One side is connected to the fermentation tank 105, the other side is equipped with a blind flange for feeding, and the other side is connected to the discharge adapter flange 114. The discharge bottle 104 is made of glass.

[0030] The scheme is further optimized. The monitoring mechanism includes a water quality sensor 111 installed on the fermentation tank cover 112. The top surface of the fermentation tank cover 112 is provided with an exhaust port 102, which is used to connect a gas flow monitoring device 7. An integrated temperature control heating belt 107 is provided on the outside of the fermentation tank 105. The integrated temperature control heating belt 107 can adjust the temperature in real time according to the temperature control information.

[0031] The gas flow monitoring device 7 includes a second frame 705, in which a gas composition analysis system 703 and a gas flow meter 704 are respectively installed. A gas guide pipe array 701 is installed on the second frame 705, which is connected to the fermentation unit 1. A gas guide valve 702 is installed on the gas guide pipe array 701. The main function of the gas guide valve 702 is to regulate the gas composition analysis system 703 and the gas flow meter 704.

[0032] The gas composition analysis system 703 measures the following parameters and ranges: carbon dioxide (CO2): 0–50%; methane (CH4): 0–100%; oxygen (O2): 0–30%; hydrogen sulfide (H2S): 0–10,000 ppm; hydrogen (H2): 0–10,000 ppm. CO2 and CH4 are measured using NDIR (non-dispersive infrared spectroscopy), H2 is measured using TCD (thermal conductivity method), and H2S and O2 are measured using long-life electrochemical sensors. The technical accuracy for CO2 and CH4 is ≤ ±1%FS; the technical accuracy for O2, H2, and H2S is ≤ ±2%FS.

[0033] The gas flow meter 704 has a range of 2-5000 mL / h, a measurement accuracy CV≤1%, a test resolution of 1.8 mL, and a signal output of 4-20 mA passive signal.

[0034] It also includes an online monitoring module for fermentation substrates, namely the water quality sensor 111. The online monitoring module for fermentation substrates includes a pH sensor (MDS-PH80), a conductivity sensor (MDS-HSJ80), an ORP sensor (MDS-ORP80), and a multi-parameter controller (MDS-KP500).

[0035] Further optimization of the scheme: the top of the storage tank cylinder 205 is provided with a fermentation tank feed valve interface 201, which is connected to the feed valve 106; a storage tank feed valve interface 207 is provided on one side of the storage tank cylinder 205; and a storage tank feed valve 202 is provided outside the storage tank feed valve interface 207.

[0036] In a further optimized design, the second mixing mechanism includes a dispersing mixing motor mixing flange interface 212 fixedly connected to the first frame 3, a dispersing mixing motor flange 213 fixedly connected inside the dispersing mixing motor mixing flange interface 212, a dispersing mixing motor 214 fixedly connected to the dispersing mixing motor flange 213, a dispersing mixing shaft 211 fixedly connected to the output shaft of the dispersing mixing motor 214, and a dispersing paddle 210 fixedly connected to the dispersing mixing shaft 211.

[0037] Start the dispersing and stirring motor 214 to drive the dispersing paddle 210 to rotate and stir the material in the storage tank 205.

[0038] The design is further optimized so that the pushing mechanism includes a piston 209 slidably connected within the storage tank cylinder 205. A piston rod 208 is fixedly connected to the bottom surface of the piston 209, and an adjusting nut 206 is provided at the bottom of the piston rod 208. The adjusting nut 206 is fixedly connected to the lifting execution unit 4. The pushing mechanism is used to push the raw materials inside the storage tank.

[0039] Further optimizing the scheme, the first frame 3 includes a base sheet metal box 307. The four corners of the bottom surface of the base sheet metal box 307 are respectively equipped with moving wheels 306. The two sides of the base sheet metal box 307 are symmetrically fixed with supporting sheet metal 305. A connecting fixing block 304 is fixed between the two opposing supporting sheet metal 305. The connecting fixing block 304 is provided with multiple cavities and multiple sets of fixing holes. The cavities are respectively fixed and connected to the fermentation tank feed valve interface 201, the dispersion stirring motor stirring flange interface 212, and the storage tank feed valve interface 207. The bottom of the storage tank cylinder 205 is fixed with a storage tank end cover 204. The four corners of the storage tank end cover 204 are respectively fixed with pull rods 203. The pull rods 203 are fixed with fixing holes. The dispersion paddle 210 is located in the cavity. A lifting control unit 5 is provided on the connecting fixing block 304.

[0040] In a further optimized design, the lifting control unit 5 includes a lifting motor mounting base 303 fixedly connected to the connecting fixed block 304. A synchronous lifting motor 401 is fixedly connected to the lifting motor mounting base 303. A synchronous motor coupling 402 is fixedly connected to the output shaft of the synchronous lifting motor 401. The synchronous motor coupling 402 is located on the top surface of the connecting fixed block 304. A lead screw 406 is fixedly connected to the synchronous motor coupling 402 through a guide bearing 407. A lead screw nut 403 is threadedly connected to the lead screw 406. A support bearing seat 405 is fixedly connected to the bottom of the lead screw 406. The support bearing seat 405 is located below the lifting beam 404. The lead screw nut 403 is fixedly connected to the lifting beam 404. The lifting beam 404 is fixedly connected to the adjusting nut 206.

[0041] Two synchronous lifting motors 401 are arranged as a group to achieve synchronous rotation. Two lead screw nuts are fixed at both ends of the lifting beam 404 to drive the piston rod 208.

[0042] To further optimize the design, the first frame 3 also includes a lifting motor control unit sheet metal box 308. Above the lifting motor control unit sheet metal box 308 is a whole machine control unit support sheet metal 309. The lifting control unit 5 includes an insulating housing 502 housed within the lifting motor control unit sheet metal box 308. The insulating housing 502 contains two synchronous lifting motor controllers 504, a safety switch 503, and a DC power supply 501. The synchronous lifting motor controllers 504 are electrically connected to the synchronous lifting motors 401. A wire harness retainer 301 and a master switch 302 are mounted on the surface of the whole machine control unit support sheet metal 309. The wire harness retainer 301 is used to secure the power cord and encoder wire of the synchronous lifting motor 401.

[0043] The whole machine control unit 6 is fixed above the whole machine control unit support sheet metal 309 by two support columns 604. Two cable management channels 602 are fixed in the middle of the two support columns 604. Each cable management channel 602 is equipped with 6 electronic speed controllers 603, which are used to control the stirring motor 101 and the dispersion stirring motor 214 respectively. A rocker arm 605 is installed on one of the support columns 604, and a master controller 601 is installed at the end of the rocker arm 605.

[0044] During system operation, the control unit 6 continuously receives feedback data from the water quality sensor 111, temperature sensor, and gas flow monitoring device 7, and evaluates and predicts the current fermentation process status based on the control model.

[0045] When the fermentation state changes, the whole machine control unit 6 automatically generates control commands based on the evaluation results, adjusts the running speed of the lifting execution unit 4, thereby changing the feeding rate of the feeding unit 2, and simultaneously adjusts the speed of the stirring motor 101 and the output power of the integrated temperature control heating belt 107 to achieve dynamic control of the anaerobic fermentation process.

[0046] The integrated temperature control heating belt 107 has a temperature measurement range of 0-100℃, adopts PID intelligent control, has a control accuracy of ±0.2℃, a temperature resolution of 0.1℃, and adopts automatic / manual switching temperature control mode.

[0047] Working principle: First, turn on the main control switch 302. Using the main controller 601, raise the lifting beam 404 to its highest stroke. Open the feed valve 106 to connect fermentation unit 1 and feed unit 2. Inject the initial fermentation substrate into the fermentation tank 105 through the upper interface of the discharge valve 103. Start the high-viscosity stirring paddle 108 and dispersing paddle 210 at low speed using the main controller 601 to expel excess gas. Open the discharge valve 103 to allow excess fermentation substrate to flow into the discharge bottle 104. Repeat this process for all six fermentation units 1 until the initial liquid level is equal. Next, close the feed valve 106, connect the dedicated syringe to the storage tank feed valve 202, purge air, and inject the initial fermentation substrate. The fermentation substrate causes piston 209 to reach its limit stroke and make contact with the limit position of storage tank end cap 204. The storage tank feed valve 202 is closed, the special injector is removed, and the adjusting nut 206 is adjusted to make it in tight contact with the lifting beam 404. Next, the gas flow monitoring device 7 is connected to the exhaust port 102, and the parameters of the exhaust port 102 transmitted back by the main controller 601 are checked. The speed range of the stirring motor 101 and the dispersion stirring motor 214 are set through the main controller 601, and the temperature range of the integrated temperature control heating belt 107 is set. The control model is loaded through the main controller 601, and the entire system is started. When the lifting beam 404 is at its limit stroke, one fermentation cycle is completed, and the above operation is repeated.

[0048] 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.

[0049] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A fully automatic continuous feeding anaerobic digestion parameter measuring instrument, characterized in that: The system includes a first frame (3), on which are respectively provided multiple fermentation units (1), multiple feeding units (2), a lifting execution unit (4), a lifting control unit (5), and a whole machine control unit (6). The fermentation unit (1) includes a fermentation tank (105), and the bottom of the fermentation tank (105) is provided with a feeding valve (106). The feeding valve (106) is connected to the feeding unit (2) and is fixedly connected to the first frame (3). The fermentation tank (105) is... The top of the fermentation tank (105) is provided with a first stirring mechanism, the fermentation tank (105) is provided with a monitoring mechanism, the fermentation tank (105) is provided with a discharge mechanism on one side, the feeding unit (2) includes a storage tank cylinder (205), the top of the storage tank cylinder (205) is provided with a second stirring mechanism, the storage tank cylinder (205) is fixedly connected to the first frame (3), the storage tank cylinder (205) is slidably connected with a pushing mechanism, and the pushing mechanism is drivenly connected to the lifting execution unit (4).

2. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 1, characterized in that: The fermentation tank (105) is provided with a fermentation tank cover (112) at the top. The first stirring mechanism includes a stirring motor flange (113) fixed to the top surface of the fermentation tank cover (112). A stirring motor (101) is fixed to the top surface of the stirring motor flange (113). The output shaft of the stirring motor (101) passes through the fermentation tank cover (112) and is fixed to a stirring shaft coupling (110). The stirring shaft coupling (110) is located inside the fermentation tank (105). A high-viscosity stirring shaft (109) is fixed to the stirring shaft coupling (110). A high-viscosity stirring paddle (108) is fixed to the high-viscosity stirring shaft (109).

3. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 2, characterized in that: The monitoring mechanism includes a water quality sensor (111) installed on the fermentation tank cover (112). The top surface of the fermentation tank cover (112) is provided with an exhaust port (102). The exhaust port (102) is used to connect a gas flow monitoring device (7). An integrated temperature control heating belt (107) is provided outside the fermentation tank (105).

4. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 3, characterized in that: The gas flow monitoring device (7) includes a second frame (705), in which a gas composition analysis system (703) and a gas flow meter (704) are respectively provided. The second frame (705) is provided with a gas guide pipe array (701), which is connected to the fermentation unit (1). The gas guide pipe array (701) is provided with a gas guide valve (702).

5. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 1, characterized in that: The discharge mechanism includes a discharge valve (103) connected to the fermentation tank (105), and the discharge valve (103) is connected to a discharge bottle (104) through a discharge adapter flange (114).

6. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 2, characterized in that: The top of the storage tank cylinder body (205) is provided with a fermentation tank feed valve interface (201), which is connected to the feed valve (106). A storage tank feed valve interface (207) is provided on one side of the storage tank cylinder body (205), and a storage tank feed valve (202) is provided outside the storage tank feed valve interface (207).

7. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 6, characterized in that: The second stirring mechanism includes a dispersing stirring motor stirring flange interface (212) fixedly connected to the first frame (3), a dispersing stirring motor flange (213) fixedly connected inside the dispersing stirring motor stirring flange interface (212), a dispersing stirring motor (214) fixedly connected to the dispersing stirring motor flange (213), a dispersing stirring shaft (211) fixedly connected to the output shaft of the dispersing stirring motor (214), and a dispersing paddle (210) fixedly connected to the dispersing stirring shaft (211).

8. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 7, characterized in that: The pushing mechanism includes a piston (209) slidably connected inside the cylinder body (205) of the storage tank. A piston rod (208) is fixedly connected to the bottom surface of the piston (209). An adjusting nut (206) is provided at the bottom of the piston rod (208). The adjusting nut (206) is fixedly connected to the lifting execution unit (4).

9. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 8, characterized in that: The first frame (3) includes a base sheet metal box (307), with casters (306) installed at the four corners of the bottom surface of the base sheet metal box (307). Support sheet metal (305) is symmetrically fixed to both sides of the base sheet metal box (307). A connecting fixing block (304) is fixed between two oppositely arranged support sheet metal (305). The connecting fixing block (304) is provided with multiple cavities and multiple sets of fixing holes. The cavities are respectively connected to the feed valve interface (20) of the fermenter. 1) The stirring flange interface (212) of the dispersion stirring motor and the feed valve interface (207) of the storage tank are fixedly connected and connected. The bottom of the storage tank cylinder (205) is fixedly connected to the storage tank end cover (204). The four corners of the storage tank end cover (204) are respectively fixedly connected to the pull rod (203). The pull rod (203) is fixedly connected to the fixing hole. The dispersion paddle (210) is located in the cavity. The lifting control unit (5) is provided on the connecting fixing block (304).

10. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 9, characterized in that: The lifting control unit (5) includes a lifting motor mounting base (303) fixedly connected to the connecting fixing block (304). A synchronous lifting motor (401) is fixedly connected to the lifting motor mounting base (303). A synchronous motor coupling (402) is fixedly connected to the output shaft of the synchronous lifting motor (401). The synchronous motor coupling (402) is located on the top surface of the connecting fixing block (304). A lead screw (406) is fixedly connected to the synchronous motor coupling (402) through a guide bearing (407). A lead screw nut (403) is threadedly connected to the lead screw (406). A lifting beam (404) is fixedly connected to the lead screw nut (403). The lifting beam (404) is fixedly connected to the adjusting nut (206).

11. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 10, characterized in that: The first frame (3) is also provided with a lifting motor control unit sheet metal box (308). Above the lifting motor control unit sheet metal box (308) is a whole machine control unit support sheet metal (309). The lifting control unit (5) includes two synchronous lifting motor controllers (504), a safety switch (503) and a DC power supply (501) disposed in the lifting motor control unit sheet metal box (308). The synchronous lifting motor controllers (504) are electrically connected to the synchronous lifting motors (401).

12. The fully automatic continuous feeding anaerobic digestion parameter measuring instrument according to claim 7, characterized in that: The complete machine control unit (6) is fixed above the complete machine control unit support sheet metal (309) by two support columns (604). Two cable management channels (602) are fixed between the two support columns (604). Each cable management channel (602) is equipped with 6 electronic speed controllers (603). A rocker arm (605) is installed on one of the support columns (604). A master controller (601) is installed at the end of the rocker arm (605).

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