CN212025326U - Fruit vegetables wet-type anaerobic fermentation device based on gas stirring - Google Patents
Fruit vegetables wet-type anaerobic fermentation device based on gas stirring Download PDFInfo
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- CN212025326U CN212025326U CN202020464996.2U CN202020464996U CN212025326U CN 212025326 U CN212025326 U CN 212025326U CN 202020464996 U CN202020464996 U CN 202020464996U CN 212025326 U CN212025326 U CN 212025326U
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Abstract
The utility model relates to a fruit and vegetable wet anaerobic fermentation device based on gas stirring, which comprises a fermentation tank, wherein the fermentation tank is connected with a feed pipe and a methane discharge pipe; the end wall of the pipe orifice at the lower end of the scum barrel is fixedly connected with the inner wall of the fermentation tank in a sealing way, and a circle of slag discharge groove is formed between the outer wall of the scum barrel and the inner wall of the fermentation cavity; the central sleeve is fixedly arranged in the fermentation cavity; the methane high-pressure pipe, the end of giving vent to anger of methane high-pressure pipe stretches into in the central sleeve. The volume gas yield is improved to be more than 1.2m3/(m3 d), and scum and sand setting of the materials in the anaerobic fermentation process are solved.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to fruit vegetables wet-type anaerobic fermentation device based on gas stirring.
Background
In recent years, with the acceleration of urbanization and the improvement of living standard of people, the quantity of organic solid wastes is also increased sharply, the components are increasingly complex, the random discharge of a large amount of organic wastes causes serious pollution to underground water and the surrounding environment, and the treatment of the pollution of the organic solid wastes by using an anaerobic fermentation technology becomes a trend that is necessary for environmental protection and sustainable development of society.
The anaerobic fermentation tank is used for stabilizing organic solid waste by utilizing the metabolic activity of microorganisms under anaerobic conditions and simultaneously producing CH4、CO2、H2S gas and the like are core equipment for treating the organic solid waste by using an anaerobic technology. Currently, the main anaerobic fermentation tank bodies mainly include wet-type complete mixed anaerobic fermentation tanks (CSTR) and dry plug flow anaerobic fermentation tanks (PFR), and the like, and particularly, the complete mixed process is dominant. The anaerobic fermentation tank can be divided into two main types of wet fermentation, semi-dry fermentation and dry fermentation according to the difference of solid content of materials in the reaction tank, the solid content of wet fermentation materials is between 4 and 10 percent, the solid content of semi-dry fermentation materials is between 15 and 20 percent, the solid content of dry fermentation materials is more than 20 percent, and the wet fermentation is suitable for the field of organic solid wastes with larger water content, such as fruits and vegetables.
The stirring device commonly used in the domestic market at present can treat fruit and vegetable garbage fermentation in a vertical type, side type, horizontal type or composite type structure and the like, but has poor operation effect, and the main reason is that suspended matters obtained in the fermentation can be condensed and float to the surface of fermentation liquor to form a crust layer, so that the mass transfer of fermentation substrates, the gas-liquid flow and the derivation of methane are influenced, a fermentation system is acidified and paralyzed, and a large number of disease pools and waste pools are formed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the fruit and vegetable wet anaerobic fermentation device based on gas stirring is provided, and the problems of scum and sand settling of the conventional fermentation device in the anaerobic fermentation process are solved.
The utility model provides a technical scheme that its technical problem adopted is:
in a first aspect, the fruit and vegetable wet anaerobic fermentation device based on gas stirring comprises
The fermentation tank is connected with the feeding pipe and the methane discharging pipe;
the scum barrel is fixedly connected with the end wall of the pipe orifice at the lower end of the scum barrel in a sealing way, a fermentation cavity is formed between the inner wall of the scum barrel and the inner wall of the fermentation tank, a circle of scum discharging grooves are formed between the outer wall of the scum barrel and the inner wall of the fermentation cavity, and the scum discharging grooves are connected with scum discharging pipes;
the central sleeve is fixedly arranged in the fermentation cavity, and a material up-and-down circulation channel is formed between the inner cavity of the central sleeve and the fermentation cavity;
the methane high-pressure pipe, the end of giving vent to anger of methane high-pressure pipe stretches into in the central sleeve.
Furthermore, the bottom of the fermentation cavity is provided with a circulating pipe, two ends of the circulating pipe are respectively and fixedly arranged at two ends of the fermentation tank, and the circulating pipe is provided with a circulating pump.
Furthermore, the bottom of the fermentation cavity is a conical cavity, the bottom of the conical cavity is connected with a discharge pipe, and a discharge pump is arranged on the discharge pipe.
Furthermore, a heating coil is fixedly arranged on the inner side wall of the fermentation cavity.
Further, the heating coil is a steam heating coil.
Furthermore, a nozzle is fixedly arranged at the air outlet end of the methane high-pressure pipe.
Furthermore, the inlet end of the methane high-pressure pipe is communicated with a methane discharge pipe, and a pressurizing fan used for pressurizing methane in the pipe is arranged on the methane high-pressure pipe.
In a second aspect, the working method of the fruit and vegetable wet anaerobic fermentation device based on gas stirring is adopted,
firstly, inputting a material into a fermentation cavity through a feed pipe, wherein the liquid level of the material is lower than the upper port of a scum barrel;
then, introducing high-pressure methane into the central sleeve through a methane high-pressure pipe, wherein the material in the central sleeve moves from the right to the bottom to the top, and the material outside the central sleeve moves from the top to the bottom, so that the material forms up-and-down circular motion in the fermentation cavity;
and finally, discharging biogas generated by material fermentation from a biogas discharge pipe.
Furthermore, when the scum in the fermentation cavity is increased, the discharge pump is turned down to raise the liquid level in the fermentation cavity until the scum enters the scum discharge groove and is then output by the scum discharge pipe.
Furthermore, the circulating pump drives the materials to move horizontally in the fermentation cavity through the circulating pipe.
The utility model has the advantages that:
the utility model provides a fruit vegetables wet-type anaerobic fermentation device and working method thereof based on gas stirring, adopt gas agitating unit can play the stirring that rolls from top to bottom of promoting jar interior material, the bottom circulating pump is with the material after these two kinds of effects stack of motion stirring in the horizontal plane, can guarantee that the fermentation material in the jar reaches the homogeneity effect, and can increase the degree before the contact of material and fermentation bacterial, improve the volume and produce the gas rate, the volume is produced the gas rate and is more than 1.2m3/(m3 d), solve dross and sand setting of material in anaerobic fermentation process.
The bottom of the fermentation cavity is a conical cavity, so that sand in the tank can be gathered at the bottom and discharged out of the tank through the discharge pipe and the discharge pump, and the tank is prevented from being cleaned regularly.
The device has simple structure and wide application range, and can treat livestock and poultry manure, fruit and vegetable garbage, straws and the like.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of an anaerobic fermentation apparatus of the present invention;
FIG. 2 is a schematic view of a center sleeve disposed within a fermentation tank;
FIG. 3 is a schematic view of a dross cartridge disposed in a fermenter;
the device comprises a fermentation tank 1, a fermentation tank 11, a heating coil 2, a scum cylinder 21, a deslagging pipe 3, a central sleeve 4, a biogas high-pressure pipe 41, a pressurizing fan 5, a nozzle 6, a feeding pipe 61, a feeding pump 7, a biogas discharging pipe 8, a circulating pipe 81, a circulating pump 9, a discharging pipe 91 and a discharging pump.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
Example one
As shown in figures 1 to 3, the fruit and vegetable wet anaerobic fermentation device based on gas stirring comprises
The fermentation tank 1, fermentation tank 1 connects inlet pipe 6 and marsh gas discharge pipe 7, and inlet pipe 6 and marsh gas discharge pipe 7 set up in fermentation tank 1 upper end, set up charge-in pump 61 on inlet pipe 6 for in with the material input fermentation tank 1, the material mainly includes poultry excrement and urine, fruit vegetables rubbish, straw etc.. The biogas discharge pipe 7 is used for discharging biogas generated in the fermentation tank 1.
The scum barrel 2 is in a conical barrel shape, the end wall of a large-diameter pipe opening at the lower end of the scum barrel 2 is fixedly connected with the inner wall of the fermentation tank 1 in a sealing way, a fermentation cavity is formed between the inner wall of the scum barrel 2 and the inner wall of the fermentation tank 1, a circle of scum groove is formed between the outer wall of the scum barrel 2 and the inner wall of the fermentation cavity, and the scum groove is connected with a scum pipe 21; the slag discharging pipe 21 is provided with a vacuum pump. The slag discharge pipe 21 is used for discharging the scum entering the slag discharge groove.
The central sleeve 3 is fixedly arranged in the fermentation cavity, and a material up-and-down circulation channel is formed between the inner cavity of the central sleeve 3 and the fermentation cavity;
specifically, fermentation chamber bottom sets up the support, and central sleeve 3 is fixed to be set up on the support, forms between 3 bottoms of central sleeve and the fermentation chamber bottom and passes through for the material circulation.
The methane high-pressure pipe 4, the gas outlet end of the methane high-pressure pipe 4 extends into the central sleeve 3.
Specifically, in this embodiment, in order to achieve the circulation of the material in the horizontal direction, the bottom of the fermentation chamber is provided with a circulation pipe 8, two ends of the circulation pipe 8 are respectively and fixedly arranged at two ends of the fermentation tank 1, and the circulation pump 81 is arranged on the circulation pipe 8. The circulating pump 81 works to drive the materials to circularly flow in the horizontal direction at the bottom of the fermentation tank 1.
Specifically, in the embodiment, the bottom of the fermentation cavity is a conical cavity, the taper is 130-140 degrees, and the taper of the top of the fermentation tank 1 is 110-120 degrees; the bottom of the conical cavity is connected with a discharge pipe 9, and a discharge pump 91 is arranged on the discharge pipe 9. And discharging settled sand accumulated at the bottom of the fermentation cavity.
Specifically, in this embodiment, heating coil 11 is fixedly arranged on the inner side wall of the fermentation chamber, and heating coil 11 is steam heating coil 11. By controlling the temperature in the fermentation tank 1 to be about 38 ℃, the material can be controlled to be better fermented.
Specifically, in this embodiment, the nozzle 5 is fixedly disposed at the outlet end of the methane high-pressure pipe 4.
Specifically, in this embodiment, the inlet end of the high-pressure methane pipe 4 is communicated with the methane discharge pipe 7, and the high-pressure methane pipe 4 is provided with a pressurizing fan 41 for pressurizing methane in the pipe.
Partial marsh gas discharged from the marsh gas discharge pipe 7 flows back into the pressurizing fan 41, the pressure is increased, then the marsh gas is conveyed to the nozzle 5 through the marsh gas high-pressure pipe 4, the nozzle 5 is fixed in the central sleeve 3, the marsh gas is sprayed out from the nozzle 5 and flows upwards due to low density, certain materials are driven to be discharged out of the central sleeve 3 upwards, a certain vacuum is formed, the materials at the bottom in the central sleeve 3 rise, the materials outside the central sleeve move downwards, and the materials in the central sleeve form movement circulation and are fully stirred.
Specifically, in this embodiment, the ratio of the diameter to the height of the fermentation tank 1 is 1: 2.2; the outer wall surface of the fermentation tank 1 is insulated and beautiful by adopting heat-insulating rock wool and an outer guard plate;
specifically, in this embodiment, the fermentation tank 1 is a concrete structure, and the central sleeve 3 is made of metal.
The wet-type anaerobic fermentation device for fruits and vegetables can enable materials in the fermentation cavity to circularly flow in the vertical direction and the horizontal direction, so that the materials are fully fermented, the fermentation materials in the tank can be guaranteed to achieve a homogenizing effect, the contact degree between the materials and fermentation strains can be increased, the volume gas yield is improved, and the volume gas yield is more than 1.2m3/(m3 d).
Example two
A working method of the fruit and vegetable wet anaerobic fermentation device based on gas stirring;
firstly, inputting materials into a fermentation cavity through a feeding pipe 6, wherein the liquid level of the materials is lower than the upper port of a scum barrel 2;
then, introducing high-pressure methane into the central sleeve 3 through a methane high-pressure pipe 4, moving the materials in the central sleeve 3 from the right to the bottom to the top, and moving the materials outside the central sleeve 3 from the top to the bottom so as to enable the materials to form up-and-down circular motion in the fermentation cavity; the circulating pump 81 drives the material to move horizontally in the fermentation chamber through the circulating pipe 8.
The materials are fully contacted with the fermentation strains in the fermentation tank 1, the effect of producing methane is accelerated, the volume gas production rate in the fermentation tank 1 is improved, the fermentation time is shortened, and the produced CO2And storing the biogas and methane in the top interval of the fermentation tank 1, and finally discharging the biogas generated by material fermentation from a biogas discharge pipe 7.
The marsh gas sediment and the natural pond liquid after the fermentation pass through discharging pipe 9 and discharge pump 91 outwards discharge, make jar interior material total volume keep in certain within range, more can collect the scum in the discharge jar in the chute when jar interior scum, and the tank bottoms adopts the toper can collect jar interior sediment, discharges through discharge pump 91 and material together.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A fruit and vegetable wet anaerobic fermentation device based on gas stirring is characterized by comprising
The fermentation tank is connected with the feeding pipe and the methane discharging pipe;
the scum barrel is fixedly connected with the end wall of the pipe orifice at the lower end of the scum barrel in a sealing way, a fermentation cavity is formed between the inner wall of the scum barrel and the inner wall of the fermentation tank, a circle of scum discharging grooves are formed between the outer wall of the scum barrel and the inner wall of the fermentation cavity, and the scum discharging grooves are connected with scum discharging pipes;
the central sleeve is fixedly arranged in the fermentation cavity, and a material up-and-down circulation channel is formed between the inner cavity of the central sleeve and the fermentation cavity;
the methane high-pressure pipe, the end of giving vent to anger of methane high-pressure pipe stretches into in the central sleeve.
2. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 1, wherein the bottom of the fermentation chamber is provided with a circulation pipe, two ends of the circulation pipe are respectively fixed at two ends of the fermentation tank, and the circulation pump is arranged on the circulation pipe.
3. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 1, wherein the bottom of the fermentation cavity is a conical cavity, the bottom of the conical cavity is connected with a discharge pipe, and a discharge pump is arranged on the discharge pipe.
4. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 1, wherein a heating coil is fixedly arranged on the inner side wall of the fermentation cavity.
5. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 4, wherein said heating coil is a steam heating coil.
6. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 1, wherein a nozzle is fixedly arranged at the outlet end of the biogas high-pressure pipe.
7. The wet-type anaerobic fermentation device for fruits and vegetables based on gas stirring as claimed in claim 1, wherein the inlet end of the biogas high-pressure pipe is communicated with a biogas discharge pipe, and the biogas high-pressure pipe is provided with a pressurizing fan for pressurizing biogas in the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020464996.2U CN212025326U (en) | 2020-04-02 | 2020-04-02 | Fruit vegetables wet-type anaerobic fermentation device based on gas stirring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020464996.2U CN212025326U (en) | 2020-04-02 | 2020-04-02 | Fruit vegetables wet-type anaerobic fermentation device based on gas stirring |
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| Publication Number | Publication Date |
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| CN212025326U true CN212025326U (en) | 2020-11-27 |
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| CN202020464996.2U Active CN212025326U (en) | 2020-04-02 | 2020-04-02 | Fruit vegetables wet-type anaerobic fermentation device based on gas stirring |
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