CN113278514B - Kitchen waste treatment device and method for improving dry anaerobic fermentation effect - Google Patents
Kitchen waste treatment device and method for improving dry anaerobic fermentation effect Download PDFInfo
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Abstract
The invention discloses a kitchen waste treatment device and method for improving dry anaerobic fermentation effect, wherein the device comprises a fermentation tank, a stirring component, a sensing component, a control component, a heating component and an adsorption component; the adsorption component comprises an electromagnetic coil arranged on the outer side surface of the fermentation tank, and the heating component comprises a heating sheet arranged on the outer side surface of the fermentation tank and is arranged adjacent to the electromagnetic coil; the sensing assembly comprises a first temperature sensor and a second temperature sensor, the second temperature sensor senses the temperature in the fermentation tank, and the first temperature sensor senses the temperature of the heating sheet; the control assembly can control the electromagnetic coil to be independently powered on or powered off, and can also control the electromagnetic coil and the heating plate to be powered on or powered off simultaneously according to the sensing result of the sensing assembly. According to the technical scheme, a fermentation environment with stable temperature and uniform heating can be provided for anaerobic bacteria in the fermentation tank, the problem of stirring dead angles is effectively solved, and the decomposition efficiency and quality of the anaerobic bacteria to the kitchen waste are improved.
Description
Technical Field
The invention belongs to the technical field of kitchen waste treatment in the environment-friendly industry, and particularly relates to a kitchen waste treatment device for improving a dry anaerobic fermentation effect by adding a novel recyclable medium, and a method for treating kitchen waste by applying the kitchen waste treatment device.
Background
The anaerobic digestion technology is an environment-friendly technology capable of realizing comprehensive utilization of resources, is applied to China for nearly 20 years, is mature in related technology, and is realized mainly by means of the decomposition capacity of anaerobic microorganisms on organic matters in principle, so that the kitchen waste can be effectively treated, biomass energy is promoted to be converted into clean energy, and the environment-friendly requirement of people on kitchen waste treatment is met. The earliest application of anaerobic digestion technology in China is in sludge and wastewater treatment, and the anaerobic digestion technology has good effect and is gradually popularized to the comprehensive treatment of kitchen waste.
The anaerobic fermentation process can be divided into a dry fermentation process and a wet fermentation process according to the solid content of organic matters in the material, wherein the dry fermentation process is carried out when the solid content of the organic matters in the material is higher than 15%, and the wet fermentation process is carried out when the solid content of the organic matters in the material is lower than 15%.
In actual operation, because jar body mechanical stirring is inhomogeneous after having the heating in the jar body fermentation, leads to the fermentation tank interior temperature inhomogeneous, especially jar body lean on jar wall and central authorities, the difference in temperature is big, influences the reproduction and the fermentation efficiency of thallus, specifically embodies:
(1) many fermentation tanks and stirrer structural designs still stay on the basis of relying on experience, and many unreasonable phenomena exist in the design, so that the fermentation tank has poor applicability, short service life, poor durability, and nonstandard design, and is easy to cause unsatisfactory fermentation effect and waste and loss of materials;
(2) in the large-scale anaerobic jar at present, because of agitator mounted position is unreasonable, agitator mounting parameter sets up the lack of standardization, stirring effect is poor, easily causes the bed that dies, leads to mud easily acidizing, inflation, and anaerobe is difficult to grow up fast, and it is unsatisfactory to receive dirty scrubbing effect, and marsh gas is rare. The fermentation tank and the stirrer are designed to be vital to the smooth anaerobic fermentation process, but the current phenomenon is unreasonable, the labor cost consumed in the design and manufacture process is huge, the design is not standard, and the waste and the loss of materials are easily caused, so that the scientific, reliable and economic design of the fermentation tank and the stirrer is very important.
Which have been studied by many researchers. Some researchers get into the structural improvement of the fermentation tank and obtain certain results, for example, another part of researchers such as Zhang Shengli continuously provides a solution to the problems of stirring dead angles, uneven mixing and the like of the stirrer, Wuyu and the like invent a novel spiral stirrer, effectively relieves the problems of small stirring range, dead angles and the like of the traditional push type stirrer and frame type stirrer, and carries out numerical simulation on the stirrer, and the simulation result shows that: the novel stirrer can enlarge the stirring range and improve the flow field speed; a novel planetary stirrer is designed according to the old and the clear meanings and the like, and parameters such as power energy consumption, mixing time, liquid discharge performance and the like of the stirrer are obtained through experimental research; the novel stirrer applied to medicine dust stirring is designed on the basis of a square base and the like, and has the advantages that external force interference is not needed, the energy consumption is low, and after analysis, the stirrer is found to have good stirring performance, mixing time and other performances; there are also some students starting from the aspects of the selection of existing stirrers and the improvement of parameters, such as designing the structure of a polymer-driven stirrer in terms of tertiary tasks and the like, and carrying out detailed analysis on the mixing performance and safety performance of the stirrer through simulation; the Zhang Xiao Dun and the like research the structure and the type selection of a stirring shaft and stirring blades in the stirrer, and relevant experimental verification is carried out, and the result shows that the improved stirrer can effectively reduce energy consumption.
Disclosure of Invention
The invention mainly aims to provide a kitchen waste treatment device and method for improving dry anaerobic fermentation effect, which can provide a fermentation environment with stable temperature and uniform heating for anaerobic bacteria in a fermentation tank, and improve the decomposition efficiency and quality of the kitchen waste by the anaerobic bacteria.
The secondary object of the present invention is to provide a kitchen waste treatment apparatus and method for improving dry anaerobic fermentation effect, which can improve the stirring effect, fully and uniformly stir the mixture in the fermentation tank, prevent the generation of dead bed, effectively solve the problem of dead angle of stirring, promote the growth of anaerobic bacteria, and improve the fermentation effect.
In order to achieve the above purpose, the solution of the invention is:
a kitchen waste treatment device for improving dry anaerobic fermentation effect comprises a fermentation tank, a stirring component, a sensing component, a control component, a heating component and an adsorption component;
the stirring assembly comprises a driving assembly and a stirrer, the stirrer is positioned in the fermentation tank and is driven by the driving assembly to stir;
the adsorption component comprises an electromagnetic coil arranged on the outer side surface of the fermentation tank, and the heating component comprises a heating sheet arranged on the outer side surface of the fermentation tank and is arranged adjacent to the electromagnetic coil;
the sensing assembly comprises a first temperature sensor and a second temperature sensor, wherein the second temperature sensor is arranged in the fermentation tank and used for sensing temperature data in the fermentation tank and sending the temperature data to the control assembly; the first temperature sensor is arranged adjacent to the electromagnetic coil and the heating sheet, is used for sensing the heating temperature of the heating sheet and sending the heating temperature to the control assembly;
the control assembly controls the electromagnetic coil and the heating sheet to be powered on and off according to the sensing data of the first temperature sensor and the second temperature sensor, and when the temperature sensed by the second temperature sensor is too low, the control assembly controls the electromagnetic coil and the heating sheet to be powered on; when the first temperature sensor senses that the temperature is too high, the control assembly controls the electromagnetic coil and the heating plate to be powered off; and the control component can control the electromagnetic coil to be independently powered on or off in the treatment process.
Above-mentioned fermentation cylinder is including jar body and lock at the cover at jar body top, and feed inlet and discharge gate have been seted up to the jar body, then set up the air inlet and the gas outlet of intercommunication jar internal portion and external environment on the cover.
The stirrer adopts a double-helix stirrer.
The outer side surface of the fermentation tank is inwards provided with an accommodating cavity for accommodating the electromagnetic coil, and the heating sheet is arranged on the outer side of the electromagnetic coil.
Above-mentioned adsorption component and heating element design can reciprocate along the fermentation cylinder lateral surface in step.
The adsorption component and the heating component are provided with a plurality of groups which are respectively positioned at different positions of the outer side surface of the fermentation tank.
The sensing assembly further comprises a pressure sensor and a pH value sensor which are arranged in the fermentation tank, are respectively used for sensing the pressure data in the fermentation tank and the pH value of the mixture in real time, and are sent to the control assembly.
A kitchen waste treatment method for improving a dry anaerobic fermentation effect comprises the following steps:
step 2, in the anaerobic fermentation process, starting a stirrer, mixing ferroferric oxide, heat-resistant anaerobic bacteria and kitchen waste, simultaneously sensing the temperature in the fermentation tank in real time, controlling the electromagnetic coil and the heating sheet on the outer side surface of the fermentation tank to be electrified if the temperature is lower than the temperature range required by anaerobic bacteria fermentation, and controlling the electromagnetic coil and the heating sheet to be powered off after heating is finished; in the anaerobic fermentation process, the ferroferric oxide is adsorbed by controlling the electrification of the electromagnetic winding, so that the kitchen waste mixed with the heat-resistant anaerobic bacteria is pushed to other spaces in the fermentation tank;
and 3, after fermentation is finished, electrifying the electromagnetic coil to adsorb ferroferric oxide, and discharging the fermented solid liquid out of the fermentation tank.
In the step 2, in the anaerobic fermentation process, various parameters in the fermentation process are measured simultaneously, so that corresponding treatment is carried out according to different conditions.
After the scheme is adopted, the invention has the following beneficial effects:
(1) according to the invention, the ferroferric oxide iron powder is added into the fermentation tank as a medium, and the characteristics of good magnetic conductivity and heat transfer performance and convenient recycling are utilized, so that on one hand, the iron powder scattered in the tank body can be adsorbed near the electromagnetic coil on the inner wall of the tank body by utilizing the magnetic conductivity of the iron powder when the temperature in the fermentation tank is low, even the iron powder mixed in the kitchen waste can be easily adsorbed, and on the other hand, the iron powder adsorbed on the inner wall of the tank body can be heated and the temperature is increased by utilizing the good heat transfer performance of the iron powder when the heating sheet heats the tank body; then the electromagnetic coil is powered off, the iron powder falls back into the tank body, the iron powder and substances in the tank body are uniformly mixed under the stirring action of the stirrer, the mixture can be fully and uniformly heated by utilizing the heat transfer characteristic of the ferroferric oxide, and the fermentation effect of anaerobic bacteria is improved; on the other hand, after fermentation is finished, the magnetic characteristics of the ferroferric oxide can be utilized, iron powder mixed in the fermented substance can be easily adsorbed on the inner wall of the tank body, and the rest substances are discharged from a discharge hole at the bottom of the tank body, so that the ferroferric oxide can be conveniently recovered and can be continuously used in the next fermentation process;
(2) in addition, the nanoscale ferroferric oxide can grind the mixture in the tank body in the stirring process, so that the mixture in the tank body is stirred in an all-around and dead-angle-free manner, the problems that the existing stirring structure is poor in stirring effect, a dead bed is easily caused, sludge is easily acidified and expanded, and anaerobic bacteria are difficult to rapidly grow are solved, the stirring effect is improved, a better fermentation environment is created for heat-resistant anaerobic bacteria, and the treatment effect on kitchen waste is further improved;
(3) according to the invention, by arranging the control assembly, parameters such as temperature, pressure, pH value and the like of the fermentation tank can be monitored in real time, so that corresponding adjustment and operation can be carried out in time, suitable conditions for anaerobic bacteria propagation are further ensured, and the decomposition efficiency and quality of the anaerobic bacteria on the kitchen waste are improved.
Drawings
FIG. 1 is a perspective view of a treatment apparatus of the present invention;
FIG. 2 is an exploded view of the treatment apparatus of the present invention;
FIG. 3 is a perspective view of another angle of the treatment apparatus of the present invention;
FIG. 4 is an exploded view of another aspect of the treatment apparatus of the present invention;
FIG. 5 is an assembled cross-sectional view of the treatment device of the present invention;
fig. 6 is a schematic structural diagram of the present invention with two sets of electromagnetic coils.
Detailed Description
The technical scheme and the beneficial effects of the invention are explained in detail in the following with the accompanying drawings.
As shown in fig. 1 to 5, the present invention provides a kitchen waste treatment apparatus for improving dry anaerobic fermentation effect, which comprises a fermentation tank, a stirring component, a sensing component, a control component, a heating component and an adsorption component, which are respectively described below.
The fermentation tank comprises a tank body 11 and a tank cover 12 buckled at the top of the tank body 11, wherein an accommodating space is arranged in the tank body 11, the tank body 11 and the tank cover 12 are buckled to provide a fermentation space for accommodating kitchen waste to be treated and ferroferric oxide (iron powder) for mixing in the stirring process; a feed inlet 13 is formed in the upper side of the side surface of the tank body 11, a discharge outlet 14 is formed in the bottom of the tank body 11, and valves 15 are respectively arranged at the feed inlet 13 and the discharge outlet 14 in order to control feeding and discharging conveniently; the lid 12 is provided with an air hole 16 for communicating the inside of the can body 11 with the external environment.
The stirring assembly includes a driving assembly 21 and a stirrer 22, wherein the driving assembly 21 includes a stator 211 providing a driving force, a rotor 212, a brush 213, a commutator 214, and the like, and a motor cover 215 accommodating the foregoing components, which is a common motor structure and is not described again; the driving component 21 is also used for adjusting the rotating speed of the stirrer 22 so as to control the fermentation effect; the output shaft of the driving assembly 21 is connected with one end of a stirrer 22 through a connector 23, and the other end of the stirrer 22 penetrates through the tank cover 12 of the fermentation tank to be positioned in the tank body 11; in this embodiment, the stirrer 22 is a double helix stirrer, which improves the stirring effect.
The adsorption component comprises an electromagnetic coil 3 arranged on the outer side surface of the tank body 11, the electromagnetic coil 3 is powered on or powered off under the control of the control component, so that ferroferric oxide in the tank body 11 can be adsorbed on the inner wall of the tank body when the electromagnetic coil is powered on, and once the electromagnetic coil is powered off, the magnetic adsorption force is lost, and the ferroferric oxide can rotate along with the stirrer 22 in the tank body 11.
The heating assembly comprises a heating sheet 4 arranged on the outer side surface of the tank body 11, can be arranged close to the electromagnetic coil 3 and is used for heating ferroferric oxide adsorbed by the electromagnetic coil 3 when the electromagnetic coil is electrified, and the heating assembly can perform heating work under the control of the control assembly; in this embodiment, the outer side of the can is formed with a receiving cavity inward for the electromagnetic coil to be placed therein, and the heating plate is disposed outside the electromagnetic coil.
The sensing assembly comprises a first temperature sensor 50 for sensing a heating process and a second temperature sensor for sensing a fermentation process, wherein the second temperature sensor is arranged in the tank body 11 (not shown), is used for sensing temperature data in the tank body 11 in real time and is sent to the control assembly; the first temperature sensor 50 is arranged close to the electromagnetic coil 3 and the heating sheet 4, and is used for sensing the heating temperature of the heating sheet 4 and sending the temperature to the control component in real time; in this embodiment, the first and second temperature sensors may be PT100 temperature sensors.
The control assembly can adopt a DSP chip and is mainly used for controlling the power on and off of the electromagnetic coil 3 and the heating sheet 4 according to the sensing data of the first temperature sensor and the second temperature sensor, when the sensing temperature of the second temperature sensor is too low, the control assembly controls the electromagnetic coil and the heating sheet to be powered on, the electromagnetic coil is powered on to generate magnetism, ferroferric oxide is magnetized and adsorbed, and then the heating sheet nearby heats the electromagnetic coil; when the temperature sensed by the first temperature sensor close to the electromagnetic coil and the heating sheet is too high, the control assembly controls the electromagnetic coil and the heating sheet to be powered off, the electromagnetic coil is powered off and does not adsorb ferroferric oxide, the heating sheet is not heated, a heating process is completed, the ferroferric oxide freely moves in the fermentation tank and can be mixed with a mixture in the fermentation tank under the stirring of the stirrer, and therefore the mixture is heated; after the treatment is finished, the control assembly can only control the electromagnetic coil to be electrified to adsorb the ferroferric oxide in the fermentation tank on the inner wall of the tank body, and then the fermented solid liquid in the tank body is discharged from the discharge hole, so that the recycling of the ferroferric oxide is realized; in addition, in the stirring process, the control assembly can push the mixture in the tank body to the rest space in the tank body in a mode of controlling the electromagnetic coil to be electrified and adsorbing ferroferric oxide, so that the auxiliary stirring effect is achieved, and the problem of a stirring dead angle is solved.
As a preferred embodiment of the present invention, as shown in fig. 6, two pairs of electromagnetic coils 3 and two pairs of heating plates 4 are disposed on two opposite sides of the can 11, wherein the side of the can 11 is recessed inward to form a receiving cavity, the two electromagnetic coils 3 are disposed in the receiving cavity at upper and lower positions, the outer sides of the electromagnetic coils 3 are respectively attached to the corresponding heating plates 4, and a first temperature sensor 50 is disposed between each pair of electromagnetic coils 3 and the heating plates 4; in this way, a total of 4 electromagnetic coils are arranged on the outer side of the tank body 11, and can be respectively electrified under the control of the control assembly, and each heating sheet can also be respectively electrified under the control of the control assembly; when the kitchen waste mixed with the anaerobic fermentation agent is pushed to the upper space in the tank, when the upper electromagnetic winding is restarted, part of the kitchen waste mixed with the anaerobic fermentation agent stays at the bottom of the tank; when the electromagnetic winding is completely powered off and the adsorption of the iron powder is stopped, the iron powder is mixed with the kitchen waste mixed with the anaerobic fermentation agent along with the stirring of the stirrer, and the iron powder plays a role in auxiliary grinding and stirring the mixture, so that the problem of dead angles in stirring can be effectively solved, and if the temperature in the tank is insufficient, the iron powder can be heated and then participate in stirring, the temperature of the mixture is increased, and a proper temperature environment is provided for the anaerobic fermentation agent. It should be noted that, in this embodiment, the electromagnetic coils are respectively disposed at different positions, and in actual operation, a small number of electromagnetic coils may be further disposed, and the electromagnetic coils are designed to be capable of moving up and down/left and right along the outer side of the tank, so as to reduce the number of the electromagnetic coils.
As a preferred embodiment of the present invention, the sensing assembly further comprises a pressure sensor and a PH sensor for sensing the fermentation process, wherein the pressure sensor and the PH sensor are both disposed in the tank 11, and are used for sensing the pressure data in the tank 11 and the PH of the mixture in real time, and sending the data to the control assembly; the control component can simultaneously perform other control operations according to the sensing data, for example, when the pH value exceeds a set range, the control component can control the addition of the regulating liquid so as to regulate the pH value of the mixture in the tank body; when the pressure in the tank body is overlarge, the air holes on the tank cover can be controlled; this embodiment is through setting up the parameter in the multiple sensing mode sensing fermentation cylinder, realizes the control to kitchen garbage disposal process to improve the treatment effect.
The invention also provides a kitchen waste treatment method for improving the dry anaerobic fermentation effect, which comprises the following steps:
step 2, detecting the temperature in the fermentation tank, controlling an electromagnetic coil and a heating sheet to be electrified if the temperature is lower than the optimal temperature range required by anaerobic bacteria fermentation, enabling the electromagnetic coil to be electrified to generate magnetism, enabling ferroferric oxide to be magnetized and adsorbed on the inner wall of the tank body, heating the tank body through heat conduction, powering off the electromagnetic coil after heating is finished, powering off the heating sheet, and mixing iron powder with kitchen waste and heat-resistant anaerobic bacteria in the fermentation tank through a double-spiral stirrer; the mixture is heated through the good heat transfer performance of the ferroferric oxide, comprehensive and uniform heating is realized, and meanwhile, the ferroferric oxide also has a grinding effect and can assist in stirring the mixture of the kitchen waste and the heat-resistant anaerobic bacteria uniformly;
in the anaerobic fermentation process, the measurement of multiple parameters such as pressure, pH value and the like can be carried out at the same time, so that corresponding treatment can be carried out according to different conditions, and the stability and effectiveness of the fermentation process can be ensured;
and 5, after fermentation is finished, electrifying the electromagnetic coil to adsorb ferroferric oxide, and discharging the fermented solid liquid from a discharge hole.
In conclusion, the ferroferric oxide is added in the kitchen waste treatment fermentation process of the fermentation tank, the magnetic permeability characteristic of the ferroferric oxide is utilized, the good recovery effect is realized, the heat transfer characteristic of the ferroferric oxide is utilized, the ferroferric oxide can be used as a heat transfer medium to conveniently and uniformly heat the mixture in the tank body, a more suitable environment is provided for anaerobic bacteria, the anaerobic fermentation is promoted, and the fermentation rate and the fermentation quality are improved; and utilize its stability, can not participate in the fermentation reaction to realize reuse, simple structure, low cost to can grind the mixture when mixing heat conduction, realize carrying out the stirring at all-round no dead angle to the mixture, improve the fermentation effect.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides an improve kitchen garbage processing apparatus of dry-type anaerobic fermentation effect which characterized in that: comprises a fermentation tank, a stirring component, a sensing component, a control component, a heating component and an adsorption component;
the stirring assembly comprises a driving assembly and a stirrer, the stirrer is positioned in the fermentation tank and is driven by the driving assembly to stir;
the adsorption assembly comprises an electromagnetic coil arranged on the outer side surface of the fermentation tank, and the heating assembly comprises a heating sheet arranged on the outer side surface of the fermentation tank and is arranged adjacent to the electromagnetic coil;
the sensing assembly comprises a first temperature sensor and a second temperature sensor, wherein the second temperature sensor is arranged in the fermentation tank and used for sensing temperature data in the fermentation tank and sending the temperature data to the control assembly; the first temperature sensor is arranged adjacent to the electromagnetic coil and the heating sheet, is used for sensing the heating temperature of the heating sheet and sending the heating temperature to the control assembly;
the control assembly controls the electromagnetic coil and the heating sheet to be powered on and off according to the sensing data of the first temperature sensor and the second temperature sensor, and when the temperature sensed by the second temperature sensor is too low, the control assembly controls the electromagnetic coil and the heating sheet to be powered on; when the first temperature sensor senses that the temperature is too high, the control assembly controls the electromagnetic coil and the heating plate to be powered off; in the processing process, the control assembly can control the electromagnetic coil to be independently powered on or off;
the treatment method of the kitchen waste treatment device for improving the dry anaerobic fermentation effect comprises the following steps:
step 1, adding kitchen waste to be treated, heat-resistant anaerobic bacteria and ferroferric oxide into a fermentation tank, introducing carbon dioxide gas into the fermentation tank, and exhausting air to produce an anaerobic environment in the fermentation tank;
step 2, in the anaerobic fermentation process, starting a stirrer, mixing ferroferric oxide, heat-resistant anaerobic bacteria and kitchen waste, simultaneously sensing the temperature in the fermentation tank in real time, controlling the electromagnetic coil and the heating sheet on the outer side surface of the fermentation tank to be electrified if the temperature is lower than the temperature range required by anaerobic bacteria fermentation, and controlling the electromagnetic coil and the heating sheet to be powered off after heating is finished; in the anaerobic fermentation process, the electromagnetic coil is controlled to be electrified to adsorb ferroferric oxide, so that the kitchen waste mixed with the heat-resistant anaerobic bacteria is pushed to other spaces in the fermentation tank;
and 3, after fermentation is finished, electrifying the electromagnetic coil to adsorb ferroferric oxide, and discharging the fermented solid liquid out of the fermentation tank.
2. The apparatus of claim 1, wherein: the fermentation cylinder is including jar body and lock at the cover at jar body top, and feed inlet and discharge gate have been seted up to the jar body, then set up the air inlet and the gas outlet of intercommunication jar internal portion and external environment on the cover.
3. The apparatus of claim 1, wherein: the stirrer adopts a double-helix stirrer.
4. The apparatus of claim 1, wherein: the lateral surface of fermentation cylinder inwards forms the holding chamber of placing solenoid, and the heating plate is located the outside of solenoid.
5. The apparatus of claim 1, wherein: adsorption component and heating element design can reciprocate along the fermentation cylinder lateral surface in step.
6. The apparatus of claim 1, wherein: the adsorption component and the heating component are provided with a plurality of groups and are respectively positioned at different positions of the outer side surface of the fermentation tank.
7. The apparatus of claim 1, wherein: the sensing assembly further comprises a pressure sensor and a pH value sensor which are arranged in the fermentation tank, and the pressure sensor and the pH value sensor are respectively used for sensing pressure data in the fermentation tank and the pH value of the mixture in real time and sending the pressure data and the pH value into the control assembly.
8. A kitchen waste treatment method for improving dry anaerobic fermentation effect is characterized by comprising the following steps:
step 1, adding kitchen waste to be treated, heat-resistant anaerobic bacteria and ferroferric oxide into a fermentation tank, introducing carbon dioxide gas into the fermentation tank, and exhausting air to produce an anaerobic environment in the fermentation tank;
step 2, in the anaerobic fermentation process, starting a stirrer, mixing ferroferric oxide, heat-resistant anaerobic bacteria and kitchen waste, simultaneously sensing the temperature in the fermentation tank in real time, controlling the electromagnetic coil and the heating sheet on the outer side surface of the fermentation tank to be electrified if the temperature is lower than the temperature range required by anaerobic bacteria fermentation, and controlling the electromagnetic coil and the heating sheet to be powered off after heating is finished; in the anaerobic fermentation process, the electromagnetic coil is controlled to be electrified to adsorb ferroferric oxide, so that the kitchen waste mixed with the heat-resistant anaerobic bacteria is pushed to other spaces in the fermentation tank;
and 3, after fermentation is finished, electrifying the electromagnetic coil to adsorb ferroferric oxide, and discharging the fermented solid liquid out of the fermentation tank.
9. The method of claim 8, wherein: in the step 2, in the anaerobic fermentation process, various parameters in the fermentation process are measured simultaneously, so that corresponding treatment is carried out according to different conditions.
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| CN202110349721.3A CN113278514B (en) | 2021-03-31 | 2021-03-31 | Kitchen waste treatment device and method for improving dry anaerobic fermentation effect |
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| CN202110349721.3A CN113278514B (en) | 2021-03-31 | 2021-03-31 | Kitchen waste treatment device and method for improving dry anaerobic fermentation effect |
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