CN210261768U - Fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on horizontal stirrer - Google Patents
Fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on horizontal stirrer Download PDFInfo
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- CN210261768U CN210261768U CN201920839186.8U CN201920839186U CN210261768U CN 210261768 U CN210261768 U CN 210261768U CN 201920839186 U CN201920839186 U CN 201920839186U CN 210261768 U CN210261768 U CN 210261768U
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Abstract
The utility model relates to a fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on a horizontal stirrer, which comprises a fermentation tank body, wherein the fermentation tank body comprises a side wall and a bottom wall, and a fermentation cavity is formed in the fermentation tank body; the side wall is provided with a feed pipe, a discharge pipe and a methane outlet; the fermentation chamber is provided with a stirring device, the fermentation chamber is provided with a fermentation tank body opening at the upper end of the fermentation tank body, and the fermentation tank body opening is hermetically connected with the double-membrane gas holder and is suitable for storing biogas generated in the fermentation chamber. The efficient stirring of fruit and vegetable fermentation materials can be provided, the efficient stirring device has the advantages of low power consumption, high solid content rate in the allowable tank and high solid content rate in the allowable tank, the solid content rate in the allowable tank is higher than 15%, the integrated methane gas storage cabinet is designed, the problem that the methane cabinet occupies a large area is solved, the top cover of the anaerobic tank and the foundation of the methane cabinet are saved, and the safety performance of methane gas storage is improved.
Description
Technical Field
The utility model relates to an environmental protection technology field, concretely relates to half dry anaerobic fermentation storage device of fruit vegetables rubbish based on horizontal agitator.
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 a core device for treating the organic solid waste by an anaerobic technology, and stabilizes the organic solid waste by using the metabolic activity of microorganisms under an anaerobic condition, and generates CH4, CO2, H2S gas and the like. The anaerobic fermentation tank body which is the mainstream at present mainly comprises a wet type complete mixing type anaerobic fermentation tank (CSTR), a dry type plug flow type anaerobic fermentation tank (PFR) and the like, and particularly, the complete mixing type process is dominant. The anaerobic fermentation tank can be divided into two main types of wet type, semi-dry type and dry type fermentation according to the difference of solid content of materials in the reaction tank, the solid content of wet type fermentation materials is between 4 and 10 percent, the solid content of semi-dry type fermentation materials is between 15 and 20 percent, the solid content of dry type fermentation materials is more than 20 percent, and the semi-dry type fermentation gradually occupies the field of agricultural organic solid waste anaerobic fermentation due to the advantages of low investment, low biogas slurry production, high treatment capacity and the like.
At present, although the stirring device commonly used in domestic markets has a vertical structure, a side structure or a combined structure and the like, the stirring device can be used for treating the fruit and vegetable garbage fermentation, the operation effect is poor, 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. The mass transfer of fermentation substrate, gas-liquid flow and the export of methane are influenced, so that the fermentation system is paralyzed in acidification, and a large number of disease pools and waste pools are formed.
Biogas is used as a clean new energy source and is increasingly widely used. At present, the volume of a gas storage cabinet of most methane pools is fixed, the gas storage cabinet can not be increased according to the increase of the methane quantity and can not be reduced according to the reduction of the methane quantity, and the volume of the gas storage cabinet is usually enlarged for storing methane in large quantity, so that the volume of the existing gas storage cabinet is generally large, the occupied space is occupied, when the fermentation product is insufficient, the methane is easy to thin and is not beneficial to users, an independent methane storage device is needed for traditional methane collection, the occupied area of the independent gas storage cabinet is large, the facility cost is increased, the structural design of the common methane storage cabinet is unreasonable, the gas storage safety is reduced, and the maintenance difficulty is increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the fruit and vegetable garbage semi-dry type anaerobic fermentation storage device overcomes the defects of the prior art, provides a fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on a horizontal stirrer, and solves the problems of low fermentation efficiency and large storage area of the existing anaerobic fermentation biogas.
The utility model provides a technical scheme that its technical problem adopted is: a fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on a horizontal stirrer comprises a fermentation tank body, wherein the fermentation tank body comprises a side wall and a bottom wall, and a fermentation cavity is formed in the fermentation tank body;
the side wall is provided with a feed pipe, a discharge pipe and a methane outlet;
the fermentation chamber is provided with a stirring device, the fermentation chamber is provided with a fermentation tank body opening at the upper end of the fermentation tank body, and the fermentation tank body opening is hermetically connected with the double-membrane gas holder and is suitable for storing biogas generated in the fermentation chamber.
Further, two membrane gas cabinets include adventitia, intima and second pressure sensor, adventitia and intima and the sealed fixed connection of fermentation cylinder body, the intima is located the fermentation chamber top, form the pressure regulating chamber between adventitia and the intima, second pressure sensor is suitable for detecting pressure regulating chamber atmospheric pressure.
Further, fermentation cylinder body opening level sets up the arch bar, the arch bar is located the inner membrance below, is suitable for to hold the inner membrance in order to prevent it to get into the fermentation intracavity.
Further, a supporting platform is arranged in the center of the bottom wall;
agitating unit includes vertical pivot, a plurality of stirring cross axle and paddle, vertical pivot sets up in supporting platform, vertical pivot lower extreme is connected with motor drive, vertical pivot is connected with each stirring cross axle, and each stirring cross axle circumference equipartition sets up a plurality of paddles in vertical pivot upper end on every stirring cross axle respectively, and the paddle on every stirring cross axle is axial heliciform along stirring the cross axle and distributes, sets up the connecting piece between two adjacent paddles.
Furthermore, the upper end of the supporting platform is provided with a stand column, and the upper end of the stand column is connected with the arch bar.
Further, a coil pipe support is fixedly arranged on the side wall, and a heating coil pipe is arranged on the coil pipe support.
Further, a vent pipe is arranged on the bottom wall.
Further, the height ratio between the double-membrane gas holder and the fermentation tank body is 1: 2.
further, a vent pipe is arranged on the bottom wall.
The utility model has the advantages that:
1. the efficient stirring of fruit and vegetable fermentation materials can be provided, the efficient stirring device has the advantages of low power consumption, high solid content rate in the allowable tank and high solid content rate in the allowable tank, the solid content rate in the allowable tank is higher than 15%, the integrated methane gas storage cabinet is designed, the problem that the methane cabinet occupies a large area is solved, the top cover of the anaerobic tank and the foundation of the methane cabinet are saved, and the safety performance of methane gas storage is improved.
2. The system adopts the horizontal stirring device to play the effect of pushing the material advection in the tank and can rotate along the direction of each independent main shaft to play the effect of stirring the material up and down. After the two effects are superposed, the fermentation material in the tank can be ensured to achieve a homogenizing effect, the contact degree of the material and the fermentation strain can be increased, and the volume gas production rate is improved and is more than 2.0m3/(m3 d);
3. the gas storage cabinet is designed at the top of the fermentation tank, so that the anaerobic tank and the gas storage cabinet are optimized to be combined into a whole, the cost of the cover of the anaerobic fermentation tank body is saved, the land occupation cost of an independent gas storage cabinet is saved, and the like, and the anaerobic fermentation tank is high in safety performance, high in gas storage capacity, long in practical service life and high in economy;
4. 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 integrated anaerobic fermentation storage apparatus;
FIG. 2 is a schematic view of an integrated anaerobic fermentation storage apparatus after being filled with materials;
FIG. 3 is a horizontal sectional view of the anaerobic fermentation and storage integrated apparatus;
the fermentation tank comprises a fermentation tank body 1, a fermentation tank body 2, a stirring device 21, a vertical rotating shaft 22, a stirring transverse shaft 23, blades 31, a coil pipe support 32, a heating coil pipe 4, an outer membrane 5, an inner membrane 6, a supporting platform 7, a stand column 8, an arch bar 91, a feeding pipe 92, a discharging pipe 93, an emptying pipe 94 and a methane outlet.
Detailed Description
The invention will now be further described with reference to specific embodiments. 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.
As shown in fig. 1 to 3, the semi-dry anaerobic fermentation storage device for fruit and vegetable waste based on the horizontal stirrer comprises a fermentation tank body 1, wherein the fermentation tank body 1 comprises a side wall and a bottom wall, and a fermentation cavity is formed in the fermentation tank body 1.
The side wall is provided with a feed pipe 91, a discharge pipe 92 and a methane outlet 94; set up the plunger pump on the inlet pipe 91, set up the vacuum pump on the discharging pipe 92, still set up relief valve and first pressure sensor on the lateral wall, set up blow-down pipe 93 on the diapire, be applicable to when clear jar with the whole evacuation of material.
The fermentation chamber is provided with a stirring device 2, the upper end of the fermentation tank body 1 of the fermentation chamber is provided with an opening of the fermentation tank body 1, and the opening of the fermentation tank body 1 is hermetically connected with a double-membrane gas holder and is suitable for storing methane generated in the fermentation chamber.
Specifically, two membrane gas cabinets include adventitia 4, intima 5 and second pressure sensor, adventitia 4 and intima 5 and fermentation cylinder body 1 sealed fixed connection, intima 5 is located fermentation chamber top, form the pressure regulating chamber between adventitia 4 and the intima 5, second pressure sensor is suitable for the atmospheric pressure of monitoring pressure regulating intracavity.
An arch bar 8 is horizontally arranged at the opening of the fermentation tank body 1, the arch bar 8 is positioned below the inner membrane 5, and the arch bar 8 is an umbrella net-shaped net rack and is used for preventing the inner membrane 5 from moving downwards to contact biogas slurry in an anaerobic fermentation area when the biogas pressure in the tank is low.
A supporting platform 6 is arranged at the center of the bottom wall; agitating unit 2 includes vertical pivot 21, a plurality of stirring cross axle 22 and paddle 23, vertical pivot 21 sets up in supporting platform 6, vertical pivot 21 lower extreme is connected with motor drive, vertical pivot 21 is connected with each stirring cross axle 22, and each stirring cross axle 22 circumference equipartition sets up a plurality of paddles 23 respectively in 21 upper ends of vertical pivot on every stirring cross axle 22, and the paddle 23 on every stirring cross axle 22 is the axial heliciform along stirring cross axle 22 and distributes, sets up the connecting piece between two adjacent paddles 23.
The upper end of the supporting platform 6 is provided with a vertical column 7, the upper end of the vertical column 7 is connected with an arch bar 8, and the vertical column 7 is a carbon steel vertical column 7.
The coil support 31 is fixedly arranged on the side wall, and the heating coil 32 is arranged on the coil support 31. The heating coil 32 provides a stable fermentation temperature for the fermentation tank, and the output of the biogas is improved.
The working principle of the integrated device is as follows: columnThe raw materials in the hydrolysis tank are conveyed to the fermentation tank by the plug pump, the raw materials are mixed with substances in the tank under the action of the horizontal stirrer and flow along the circumferential direction of the fermentation tank, and the raw materials are stirred up and down and turned over in a vertical plane by the stirrer, so that the materials are fully contacted with fermentation strains in the fermentation tank, the methane production effect is accelerated, the volume gas production rate in the fermentation tank is improved, the fermentation time is shortened, and the produced CO is generated2Store in anaerobic jar top interval with methane, anaerobic jar top interval and two membrane gas holders play the effect of storing marsh gas, and the marsh slag and the natural pond liquid after the fermentation are outwards discharged through discharging pipe 92 and vacuum pump, make jar interior material total amount keep in certain within range, clear jar or maintain through emergent discharge pipe can realize the whole evacuation of jar interior material when needing.
This patent horizontal agitating unit 2 installs in anaerobic fermentation jar, can arrange the agitating unit 2 of reasonable quantity according to anaerobic fermentation jar's volume and though the kind and the dry matter content of material, and agitating unit 2 is equipped with a motor and drives, and the motor is equipped with the speed reduction transposition, makes the rotational speed of agitator main shaft be 2 ~ 6 revolutions per minute. Agitating unit 2 can produce along anaerobic fermentation tank circumferencial direction's horizontal thrust, plays the effect that promotes jar interior material advection, can rotate along every independent main shaft direction again and play the effect of stirring the material from top to bottom. After the two effects are superposed, the fermentation material in the tank can be ensured to reach the homogenization effect, the contact degree of the material and the fermentation strain can be increased, and the unit gas yield is improved.
The method comprises the following steps that materials flow upwards in a fermentation tank, methane generated after fermentation is stored in a gas storage area formed by a double-membrane gas holder at the top of the fermentation tank and is discharged through a methane outlet pipe for utilization, a first pressure sensor monitors the methane pressure of the gas storage area, when the pressure of the gas storage area is too high, an inner membrane 5 expands, the elastic angle is large, a pressure regulating cavity is extruded, a first pressure sensor feeds back signals to a control device, the control device starts a second pressure sensor to monitor the pressure in the pressure regulating cavity, when the pressure in the pressure regulating cavity is too high, the control device controls a safety valve, and redundant methane can be discharged from the safety valve, so that the inner membrane 5 extends, and the methane pressure is balanced; when the pressure in the anaerobic tank is too low, the inner membrane 5 and the outer membrane move downwards, and the arch plate 8 supports the inner membrane 5 to prevent the inner membrane 5 from contacting biogas residues in an anaerobic fermentation area.
The anaerobic tank is formed by combining an anaerobic tank and a gas storage cabinet, the gas storage cabinet is arranged at the top of the anaerobic tank, is integrally hemispherical and mainly comprises an outer membrane 4, an inner membrane 5 and a control system, the outer membrane 4 is connected with the edge of the inner membrane 5 and an anaerobic tank opening, and a carbon steel support is arranged in the middle of a fermentation tank body 1 and used for supporting an arch bar 8; the height ratio of the gas storage cabinet to the anaerobic tank is 1: 2; the outer film 4 and the inner film 5 are made of polyester material; the outer membrane 4 has the function of resisting ultraviolet rays, bears the prestress of 3Mbar and plays a role in protecting the inner membrane 5; the inner membrane 5 is a soft membrane and has the functions of high elasticity and external gas isolation; the support is 0.2m higher than the anaerobic tank.
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 (9)
1. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized by comprising a fermentation tank body, wherein the fermentation tank body comprises a side wall and a bottom wall, and a fermentation cavity is formed in the fermentation tank body;
the side wall is provided with a feed pipe, a discharge pipe and a methane outlet;
the fermentation chamber is provided with a stirring device, the fermentation chamber is provided with a fermentation tank body opening at the upper end of the fermentation tank body, and the fermentation tank body opening is hermetically connected with the double-membrane gas holder and is suitable for storing biogas generated in the fermentation chamber.
2. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that the double-membrane gas holder comprises an outer membrane, an inner membrane and a second pressure sensor, the outer membrane and the inner membrane are fixedly connected with the fermentation tank body in a sealing mode, the inner membrane is located above the fermentation cavity, a pressure regulating cavity is formed between the outer membrane and the inner membrane, and the second pressure sensor is suitable for detecting the air pressure of the pressure regulating cavity.
3. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that an arch plate is horizontally arranged at the opening of the fermentation tank body, is positioned below an inner membrane and is suitable for supporting the inner membrane to prevent the inner membrane from entering the fermentation chamber.
4. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer as claimed in claim 3, wherein a support platform is arranged at the center of the bottom wall;
agitating unit includes vertical pivot, a plurality of stirring cross axle and paddle, vertical pivot sets up in supporting platform, vertical pivot lower extreme is connected with motor drive, vertical pivot is connected with each stirring cross axle, and each stirring cross axle circumference equipartition sets up a plurality of paddles in vertical pivot upper end on every stirring cross axle respectively, and the paddle on every stirring cross axle is axial heliciform along stirring the cross axle and distributes, sets up the connecting piece between two adjacent paddles.
5. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that an upright post is arranged at the upper end of the supporting platform, and the upper end of the upright post is connected with an arch plate.
6. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that a coil pipe support is fixedly arranged on the side wall, and a heating coil pipe is arranged on the coil pipe support.
7. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that a vent pipe is arranged on the bottom wall.
8. The fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer as claimed in claim 2, wherein the height ratio between the double-membrane gas holder and the fermentation tank body is 1: 2.
9. the fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on the horizontal stirrer is characterized in that a vent pipe is arranged on the bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839186.8U CN210261768U (en) | 2019-06-04 | 2019-06-04 | Fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on horizontal stirrer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920839186.8U CN210261768U (en) | 2019-06-04 | 2019-06-04 | Fruit and vegetable garbage semi-dry type anaerobic fermentation storage device based on horizontal stirrer |
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| CN210261768U true CN210261768U (en) | 2020-04-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117530A (en) * | 2019-06-04 | 2019-08-13 | 上海环境工程设计研究院有限公司 | Fruits and vegetables rubbish half dry type anaerobic fermentation based on horizontal mixer stores integrated apparatus |
| CN113444634A (en) * | 2021-07-28 | 2021-09-28 | 湖北新力大风车现代农业科技有限责任公司 | Hotpot seasoning fermentation device and method |
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2019
- 2019-06-04 CN CN201920839186.8U patent/CN210261768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117530A (en) * | 2019-06-04 | 2019-08-13 | 上海环境工程设计研究院有限公司 | Fruits and vegetables rubbish half dry type anaerobic fermentation based on horizontal mixer stores integrated apparatus |
| CN113444634A (en) * | 2021-07-28 | 2021-09-28 | 湖北新力大风车现代农业科技有限责任公司 | Hotpot seasoning fermentation device and method |
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