Multifunctional complete mixing bioreactor
Technical Field
The utility model relates to a bioreactor, in particular to a multifunctional complete mixing bioreactor.
Background
At present, a reactor is generally used for realizing a liquid phase single phase reaction process and a liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid and other multiphase reaction processes, and stirring devices (mechanical stirring, airflow stirring and the like) are usually arranged in the reactor. The bioreactor is cultured by mixing the known and available organisms, such as microorganisms with degradation function and some enzymes with specific functions, with solid or liquid, provides proper light and nutrients, and enables the microorganisms to propagate in large quantities, thereby rapidly decomposing organic substances and harmful substances in the mixed liquid. The existing laboratory scale bioreactor has single function, has the problems of difficult control of feeding and discharging or difficult realization of automation, uneven mixing of high-concentration materials, poor sealing performance of the reactor and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a multifunctional complete mixing bioreactor which can automatically discharge materials through an overflow pipe, can be used for dry and wet materials and continuously feeding low-concentration materials, has uniform material mixing and good reactor sealing property, and is applied to process simulation experiments of anaerobic degradation and aerobic degradation processes of microorganisms.
The technical scheme adopted by the utility model for solving the technical problem is as follows: a multifunctional complete mixing bioreactor comprises a reactor tripod support, a reactor main body, a water bath jacket and a stirring device, wherein an emptying pipe is arranged at the bottom of the reactor main body, a reactor top cover is arranged at the top of the reactor main body, a water inlet is arranged at the lower part of the water bath jacket, a water outlet is arranged at the upper part of the water bath jacket, the multifunctional complete mixing bioreactor also comprises a discharge overflow pipe, the discharge overflow pipe comprises an inner overflow pipe and an inner overflow pipe opening which are arranged in the reactor main body, and an outer overflow pipe discharge opening which are arranged outside the reactor main body, the highest positions of the inner overflow pipe and the outer overflow pipe are flush with the inner liquid level line of the reactor, and a ball valve switch is arranged on the outer overflow pipe; the reactor top cover is provided with a low solid feeding pipe orifice, a high solid feeding pipe orifice and an air outlet.
As a further improvement, a low solid feeding pipe extension pipe is arranged below the low solid feeding pipe opening, a solid feeding pipe extension pipe is arranged below the high solid feeding pipe opening, and the extension lengths of the low solid feeding pipe extension pipe and the high solid feeding pipe extension pipe are lower than that of the inner overflow pipe opening.
As a further improvement, the stirring device comprises a stirring motor, a coupler, a stirring shaft and stirring blades, wherein a sealing element is arranged between the stirring shaft and the top cover of the reactor in the reactor main body.
Preferably, the stirring blade includes an upper stirring blade and a lower stirring blade.
As a further improvement, the reactor top cover is fixed with the reactor main body through bolts to realize the disassembly.
As a further improvement, a switch is arranged on the emptying pipe.
The device comprises a stainless steel reactor main body, a constant-temperature water bath jacket on the outer layer of the main body, a mechanical stirring system, an automatic overflow discharging system, a raw material emptying system, a high-concentration raw material inlet, a low-concentration raw material outlet and a biogas outlet which are positioned at the top of the reactor. The outer contours of the reactor main body and the water bath jacket are cylindrical, a cavity with a certain volume is formed between the main body and the jacket and used for allowing a constant-temperature fluid medium to pass through, the emptying pipeline and the overflow pipeline are connected to the bottom of the reactor main body, and one part of the overflow pipeline is positioned in the reactor. Two stirring blades are arranged on a stirring shaft connected with a stirring motor of the reactor and are used for fully mixing the raw materials participating in the biological fermentation process in the reactor.
The utility model has the advantages that the overflow pipe is adopted for automatic discharging, the device can be used for dry and wet materials and continuously feeding low-concentration materials, the materials are uniformly mixed, the reactor has good sealing performance, and the device can be simultaneously applied to the process simulation experiment of the anaerobic degradation and aerobic degradation process of microorganisms.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure of the embodiment of the present invention.
Wherein, 1, the reactor tripod is arranged on the reactor frame; 2. a reactor body; 3. a water bath jacket; 4. emptying the pipe; 5. a switch; 6. a ball valve switch; 7. a reactor head; 8. a water inlet; 9. a water outlet; 10. an inner overflow pipe; 11. an inner overflow pipe orifice; 12. an overflow pipe; 13. a discharge hole of the overflow pipe; 14. a liquid level line; 15. a low solids feed pipe orifice; 16. a high solids feed pipe orifice; 17. an air outlet; 18. a low solid feed pipe extension pipe; 19. a high solid feed pipe extension pipe; 20. a stirring motor; 21. a coupling; 22. a stirring shaft; 23. an upper stirring blade; 24. a lower stirring blade; 25. and (4) bolts.
The utility model is further described below with reference to the accompanying drawings.
Detailed Description
As shown in attached figures 1 and 1, the multifunctional complete mixing bioreactor can be used for anaerobic biological fermentation process and aerobic biological fermentation process, comprises a reactor tripod support 1, a stainless steel reactor main body 2, a water bath jacket 3 and a stirring device, wherein the water bath jacket is mainly used for maintaining constant temperature required by the operation of the reactor, constant temperature water or other liquid media enters the jacket through a water inlet 8 at the lower end of the water bath jacket in the using process until the jacket cavity is filled and then flows out from a water outlet 9 at the top of the jacket, and the water bath temperature is controlled through an external water bath.
The reactor main part 1 is cylindrical, and the bottom is the hemisphere, and material evacuation pipe 4 connects in the hemisphere bottom, and evacuation pipe 4 will be used when the reactor of needs evacuation all materials, for example the emptying of reactor after stopping the experiment, or discharge bottom dust and sand or other deposits etc.. Meanwhile, the pipeline can be used for bottom sampling, analyzing the characteristics of the material at the bottom of the reactor, or comparing the uniformity of the material at the upper part and the like. The emptying pipe 4 is provided with a ball valve type switch 5 for controlling the discharging speed. The hemispherical bottom is connected with a tripod bracket 1 for supporting the whole reactor. Reactor main part 1 top is equipped with reactor top cap 7, reactor top cap 7 is fixed with reactor main part 2 through bolt 25, and the realization is dismantled. The water bath jacket is characterized in that a water inlet 8 is formed in the lower portion of the water bath jacket 3, a water outlet 9 is formed in the upper portion of the water bath jacket, the water bath jacket further comprises a discharge overflow pipe, the discharge overflow pipe comprises an inner overflow pipe 10 and an inner overflow pipe opening 11 which are arranged in the reactor main body 1, an outer overflow pipe 12 and an outer overflow pipe discharge opening 13 which are arranged outside the reactor main body 1, the highest positions of the inner overflow pipe 10 and the outer overflow pipe 12 are flush with a liquid level line 14 in the reactor, and a ball valve switch 6 is arranged on the outer overflow pipe 12 and used for controlling the discharge flow rate. When the reactor is fed, the liquid level inside the reactor exceeds the liquid level line 14 and then flows out of the internal overflow pipe orifice 11 of the reactor and is discharged through the discharge hole 13 of the overflow pipe, so that the automatic discharging function is realized. The residual liquid in the overflow pipe also plays a role of liquid seal, and the tightness of the reactor is ensured.
Reactor top cap 7 is last to be equipped with low solid feed tube mouth 15, funnel-shaped high solid feed tube mouth 16 and gas outlet 17, and gas outlet 17 can connect air collecting bag, gas flowmeter or gas composition analysis appearance and use to can carry out index analysis such as extra flow, composition to the biogas of production. The gas port is kept open during the development of the aerobic biodegradation process. A low solid feeding pipe extension pipe 18 is arranged below the low solid feeding pipe opening 15, and a solid feeding pipe extension pipe 19 is arranged below the high solid feeding pipe opening 16. The extension lengths of the low-solid feeding pipe extension pipe 18 and the high-solid feeding pipe extension pipe 19 are lower than that of the inner overflow pipe opening 11, so that the liquid seal and sealing effects are achieved. Wherein the high solid content materials mainly comprise livestock and poultry manure, sludge and the like, and the low solid content materials mainly comprise various organic wastewater.
The stirring device comprises a stirring motor 20, a coupler 21, a stirring shaft 22 and a mechanical stirring blade, wherein the stirring motor 20 is a brushless stepping motor. The sealing element 26 is arranged between the stirring shaft 22 in the reactor main body 2 and the reactor top cover 7, the sealing element 26 can play a role in sealing, good air tightness of the reactor is guaranteed, and air can be prevented from entering the reactor from the connecting position of the motor stirring shaft 22 and the reactor top cover 7. The mechanical stirring blades include an upper stirring blade 23 and a lower stirring blade 24. The upper and lower mechanical stirring blades can play a role in fully mixing raw materials, and more stirring blades can be added according to the requirement.