CN110713918B

CN110713918B - CSTR reaction unit advances a kind semicontinuously

Info

Publication number: CN110713918B
Application number: CN201911012763.7A
Authority: CN
Inventors: 严建中; 张启华; 郑成志
Original assignee: Hubei Rocktek Instrument Co ltd
Current assignee: Hubei Rocktek Instrument Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2022-11-22
Anticipated expiration: 2039-10-23
Also published as: CN110713918A

Abstract

The invention relates to the technical field of environmental protection, and discloses a semi-continuous sample injection CSTR reaction device, which solves the problems that the semi-continuous sample injection CSTR reaction device in the current market is inconvenient to operate, complicated to use, inconvenient to replace parts, incapable of flexibly setting the feeding amount, the feeding speed and the frequency, incapable of monitoring relevant data in real time and incapable of measuring the gas amount generated in the anaerobic fermentation process of materials on line; the invention provides a small-sized semi-continuous sample injection CSTR reaction device for a laboratory, which has the advantages of capability of measuring the gas quantity generated in the anaerobic fermentation process of materials in real time on line, capability of monitoring parameters such as temperature and pH value in the anaerobic fermentation process of the materials in real time on line, capability of flexibly setting the feeding quantity, the feeding speed and the feeding frequency, simplicity in operation, convenience in use, modular design of the reaction device and easiness in part replacement.

Description

CSTR reaction unit of semicontinuous appearance

Technical Field

The invention belongs to the technical field of environmental protection, and particularly relates to a CSTR reaction device with semi-continuous sample injection.

Background

In the CSTR (continuous Stirred Tank Reactor), also called ideal mixed flow Reactor or continuous Stirred Reactor, the operation of material inlet and outlet is continuous, i.e. reactant is Continuously and constantly added into the Reactor, and reaction product is Continuously led out of the Reactor, and such flow condition is very close to ideal mixed flow model or completely mixed flow model, and this completely mixed flow is also an ideal assumption, and the continuous Stirred Tank Reactor is widely used in actual industrial production to carry out liquid phase reaction, as long as enough stirring intensity is achieved, its flow pattern is very close to completely mixed flow, and in the CSTR Reactor, the material system properties of all spatial positions are uniform and equal to the material properties at the outlet of the Reactor, i.e.: the concentration and temperature of the material are equal everywhere and equal to the concentration and temperature of the reactor effluent material, and all parameters of the system in the CSTR reactor, such as T, C, P, etc., do not change with time, so that there is no time independent variable, which is space.

At present, more anaerobic reactors are industrially used, including a UASB-upflow anaerobic sludge blanket, an EGSB-anaerobic expanded granular bed reactor, a CSTR-complete mixed anaerobic reactor, an IC-internal circulation anaerobic reactor, an ABR-anaerobic baffle reactor, an AF-anaerobic biofilter, a UBF-compound anaerobic fluidized bed, an AC-anaerobic contact process, a USR-upflow anaerobic solid reactor, a septic tank and the like, wherein the CSTR reactor is most widely applied in industry, but most of the CSTR reactor needs to be specially attended during use to ensure that the quantity of materials in the reactor is continuously in a stable reaction state, so that artificial filling is frequently carried out, therefore, the development of the CSTR reactor capable of continuously feeding has important significance, and the establishment of a small-sized reactor in a laboratory for simulating the CSTR reactor capable of continuously feeding is beneficial to the evaluation of the operation efficiency and the optimization of the operation parameters, but the small-sized reactor is lacked at present.

Disclosure of Invention

Aiming at the situation, the invention provides a CSTR reaction device for semi-continuous sample injection, which effectively solves the problems that the CSTR reaction device in the market at present is inconvenient to operate, complex to use, inconvenient to replace parts, incapable of flexibly setting the feeding quantity, the feeding speed and the frequency, incapable of monitoring relevant data in real time, incapable of measuring the quantity of gas generated in the anaerobic fermentation process of materials on line and overlarge in size of an experimental device.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a CSTR reaction unit advances a kind in semi-continuous, including impeller agitator, impeller agitator's one end is installed the reaction tank, the cell body gas outlet is installed at the top of reaction tank, the air duct is installed at the top of cell body gas outlet, the measurement pond is installed to the one end of air duct, the measurement air inlet is installed at the top of measurement pond, the measurement gas outlet is installed at the top that the measurement pond is located measurement air inlet side, the thermometer is installed at the top that the reaction tank is located cell body gas outlet side, the pH meter is installed at the top that the reaction tank is located the thermometer side, the externally mounted of reaction tank has the electric heating cover, the side-mounting of reaction tank has emergent feeder, emergent globe valve is installed to the one end of emergent feeder, the inlet pipe is installed to the bottom of reaction tank, the mid-mounting of inlet pipe inner chamber has the feeding globe valve, feed mechanism is installed to the bottom of inlet mechanism, feed mechanism's inner chamber installs feeding automatic piston mechanism, feed automatic piston mechanism extends to the outside one end installs feeding automatic piston propeller, the externally mounted of feeding automatic piston propeller has the leakage tray, the side-mounting of feed mechanism has the filler pipe, the mid-mounting has the filler ball valve, the filler is installed to the filler.

Preferably, an emergency pipe is installed at the top of the emergency feeder, and an inner cavity of the emergency pipe at the top of the emergency feeder is installed with the emergency ball valve.

Preferably, the feeding mechanism is positioned under the reaction tank, and the bottom of the feeding mechanism is provided with a movable hole.

Preferably, the metering air outlet is in direct contact with the atmosphere, and the metering air outlet and the metering air inlet are both arranged at the top of the metering pool.

Preferably, a pushing rod is fixed at the bottom of the feeding automatic piston mechanism, and one end of the pushing rod on the feeding automatic piston mechanism is matched with a movable hole at the bottom of the feeding mechanism.

Preferably, the two ends of the filler are provided with auxiliary holes, and the auxiliary holes at the two ends of the filler are respectively matched with one ends of the filler pipe and the manual filling piston.

Preferably, an adjusting block is fixed at one end of the manual filling piston, and the diameter of the adjusting block on the manual filling piston is larger than that of an auxiliary hole at one end of the filling device.

Compared with the prior art, the invention has the beneficial effects that:

1) The invention provides a small-sized semi-continuous sample injection CSTR reaction device for a laboratory, which can be used for researching the mechanism and parameter optimization of anaerobic digestion of various organic materials in the laboratory;

2) The invention can measure the gas quantity generated in the anaerobic fermentation process of the material on line in real time;

3) The invention can monitor parameters such as temperature and pH value in the anaerobic fermentation process of the material on line in real time;

4) The invention can flexibly set the feeding quantity, the feeding speed and the frequency;

5) The invention has the advantages of simple operation, convenient use, modular design of the reaction device and easy replacement of parts.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of a reaction cell according to the present invention;

FIG. 3 is a schematic view of the feed mechanism of the present invention;

in the figure: 1. an impeller agitator; 2. a gas outlet of the tank body; 3. a thermometer; 4. a pH meter; 5. a reaction tank; 6. an emergency feeder; 7. an emergency ball valve; 8. a feed ball valve; 9. a feed pipe; 10. a feeding mechanism; 11. a packing ball valve; 12. a filler tube; 13. a filler; 14. feeding an automatic piston pusher; 15. a leak tray; 16. an electrical heating jacket; 17. a feed automatic piston mechanism; 18. a packing manual piston; 19. an air duct; 20. a metering tank; 21. a metering air inlet; 22. and (4) metering an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, fig. 2, and fig. 3, the present invention includes an impeller stirrer 1, through the arrangement of the impeller stirrer 1, the impeller stirrer 1 can uniformly stir the substances inside the reaction tank 5, a reaction tank 5 is installed at one end of the impeller stirrer 1, a tank outlet 2 is installed at the top of the reaction tank 5, a gas guide tube 19 is installed at the top of the tank outlet 2, a metering tank 20 is installed at one end of the gas guide tube 19, a metering inlet 21 is installed at the top of the metering tank 20, a metering outlet 22 is installed at the top of the metering tank 20, which is located at the side of the metering inlet 21, a thermometer 3 is installed at the top of the reaction tank 5, through the arrangement of the thermometer 3, the thermometer can perform real-time temperature monitoring, a pH meter 4 is installed at the top of the reaction tank 5, an electric heating jacket 16 is installed outside the reaction tank 5, an emergency feeder 6 is installed at the side of the reaction tank 5, an emergency ball valve 7 is installed at one end of the emergency feeder 6, a feed pipe 9 is installed at the bottom of the reaction tank 5, a feed pipe 9 is installed at the middle of the inner cavity of the feed pipe 9, a feed pipe is installed at the bottom of the inner cavity of the feed pipe, a piston tray 13, a piston pusher 12 is installed at the outer end of the automatic feed mechanism, a piston pusher 12 is installed at the inner cavity of the feed pipe, and a pusher 12 is installed at the inner of the piston pusher, and a pusher 12, and a pusher is installed at the inner of the pusher 13, and a pusher.

In the second embodiment, on the basis of the first embodiment, the emergency pipe is installed at the top of the emergency feeder 6, the inner cavity of the emergency pipe at the top of the emergency feeder 6 is installed with the emergency ball valve 7, and through the arrangement of the emergency feeder 6, the corresponding substances can be supplemented in time, so that the experiment interruption is avoided.

In the third embodiment, on the basis of the first embodiment, the feeding mechanism 10 is located right below the reaction tank 5, and the bottom of the feeding mechanism 10 is provided with a movable hole, so that the feeding mechanism 10 cooperates with the feeding automatic piston mechanism 17 to transport relevant substances through the feeding mechanism 10.

Fourth embodiment, on the basis of first embodiment, the measurement gas outlet 22 directly contacts with the atmosphere, and the measurement gas outlet 22 and the measurement gas inlet 21 all set up at the top of measurement pond 20, through the setting of measurement gas outlet 22 for its gas emission is more convenient, reduces the trouble that gas emission is not brought very much.

Fifth, on the basis of the first embodiment, a pushing rod is fixed at the bottom of the feeding automatic piston mechanism 17, and one end of the pushing rod on the feeding automatic piston mechanism 17 is matched with a movable hole at the bottom of the feeding mechanism 10, so that the feeding automatic piston mechanism 17 can push the material inside the feeding mechanism 10, and the material is driven to change the position.

Sixth embodiment, on the basis of the first embodiment, auxiliary holes are respectively formed at both ends of the stuffing device 13, and the auxiliary holes at both ends of the stuffing device 13 are respectively matched with one end of the stuffing pipe 12 and one end of the manual stuffing piston 18, so that the stuffing device 13 can supplement substances

In the seventh embodiment, on the basis of the first embodiment, an adjusting block is fixed at one end of the manual filling piston 18, and the diameter of the adjusting block on the manual filling piston 18 is larger than that of the auxiliary hole at one end of the filling device 13, so that the manual filling piston 18 can be used for conveying related substances manually.

The working principle is as follows: during operation, materials to be tested (such as agricultural straws, kitchen waste, livestock and poultry manure and organic wastewater) and microbial strains are placed into a reaction tank 5 together, an impeller stirrer 1 is started to stir uniformly, an electric heating sleeve 16 is started to heat the reaction tank 5 to provide temperature required by anaerobic digestion, the materials to be tested and the microbial strains are mixed and then are placed into a filler 13, a filler ball valve 11 is opened, a filler manual piston 18 is pushed to inject the materials into a feeding mechanism 10, the filler ball valve 11 is closed, a feeding ball valve 8 is opened, a feeding automatic piston propeller 14 is started to push a feeding automatic piston mechanism 17, the materials in the feeding mechanism 10 are injected into the reaction tank 5 according to a set speed and frequency, meanwhile, an emergency ball valve 7 is opened, the reacted materials are pushed into an emergency feeder 6 to receive the discharged reaction materials, and if an emergency situation occurs, the new materials can be directly placed into the emergency feeder 6 and manually pushed into the reaction tank 5 to react;

the thermometer 3 arranged on the reaction tank 5 measures the temperature of the materials in the reaction process in real time, the pH meter 4 measures the pH value of the materials in the reaction process in real time, the gas generated by anaerobic digestion enters the metering tank 20 through the gas guide tube 19, the gas flow is measured in real time, the measured gas is discharged into the atmosphere through the metering gas outlet 22, or a gas collecting bag is connected at the tail end, and the subsequent gas component analysis is carried out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a CSTR reaction unit of introducing sample in semi-continuous type, includes impeller agitator (1), its characterized in that: the reaction tank (5) is installed at one end of the impeller stirrer (1), the tank body gas outlet (2) is installed at the top of the reaction tank (5), the gas guide pipe (19) is installed at the top of the tank body gas outlet (2), the metering tank (20) is installed at one end of the gas guide pipe (19), the metering gas inlet (21) and the metering gas outlet (22) are installed at the top of the metering tank (20), the thermometer (3) is installed at the top of the reaction tank (5) which is located on the side face of the tank body gas outlet (2), the pH meter (4) is installed at the top of the reaction tank (5) which is located on the side face of the thermometer (3), the electric heating sleeve (16) is installed outside the reaction tank (5), the emergency feeder (6) is installed on the side face of the reaction tank (5), the emergency ball valve (7) is installed at one end of the emergency feeder (6), the feeding pipe (9) is installed at the bottom of the reaction tank (5), the feeding ball valve (8) is installed in the middle of the feeding pipe (9), the feeding mechanism (10) is installed at the bottom of the feeding pipe (9), the feeding mechanism (10) is installed with the automatic piston mechanism (17) installed in the feeding mechanism (17), the feeding tray is installed outside the feeding piston mechanism (14) is installed outside the feeding tray (14), a filler pipe (12) is installed on the side surface of the feeding mechanism (10), a filler ball valve (11) is installed in the middle of the inner cavity of the filler pipe (12), a filler (13) is installed at one end of the filler pipe (12), and a filler manual piston (18) is installed in the inner cavity of the filler (13); the metering outlet (22) is in direct contact with the atmosphere.

2. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: an emergency pipe is installed at the top of the emergency feeder (6), and an inner cavity of the emergency pipe at the top of the emergency feeder (6) is installed with the emergency ball valve (7).

3. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: the feeding mechanism (10) is positioned under the reaction tank (5), and the bottom of the feeding mechanism (10) is provided with a movable hole.

4. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: and the metering air outlet (22) and the metering air inlet (21) are both arranged at the top of the metering pool (20).

5. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: the bottom of the feeding automatic piston mechanism (17) is fixed with a pushing rod, and one end of the pushing rod on the feeding automatic piston mechanism (17) is matched with a movable hole at the bottom of the feeding mechanism (10).

6. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: auxiliary holes are formed in the two ends of the filler (13), and the auxiliary holes in the two ends of the filler (13) are matched with one ends of the filler pipe (12) and the manual filler piston (18) respectively.

7. The CSTR reaction device with semi-continuous sample injection according to claim 1, wherein: an adjusting block is fixed at one end of the manual filling piston (18), and the diameter of the adjusting block on the manual filling piston (18) is larger than that of an auxiliary hole at one end of the filling device (13).