CN218710322U

CN218710322U - Straw fermentation device convenient to remove dross

Info

Publication number: CN218710322U
Application number: CN202222857115.5U
Authority: CN
Inventors: 左文祥; 姜鹏; 付斌; 陈颖; 郭红菊
Original assignee: Qingdao Henotec Environment Technology Co ltd
Current assignee: Qingdao Henotec Environment Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-24
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to a straw fermentation device convenient for removing scum, which comprises a barrel body with an open top, wherein the open top of the barrel body is detachably and fixedly connected with a barrel cover; an annular cylindrical side plate is coaxially arranged in the cylinder body and divides the interior of the cylinder body into an inner fermentation tank and an outer fermentation tank which are coaxially arranged; the lower part of the annular cylindrical side plate is provided with a through hole for communicating the inner fermentation tank with the outer fermentation tank; a plurality of slag outlets are arranged at the same height on the upper part of the annular cylindrical side plate, a slag discharge pipe is connected to the slag outlets, and one end of the slag discharge pipe, which is far away from the slag outlets, penetrates through the barrel; the bottom of the cylinder cover is connected with a slag scraping mechanism, the slag scraping mechanism comprises a slag scraping plate extending into the inner fermentation tank and a driving mechanism driving the slag scraping plate to rotate, and the slag scraping plate is positioned between the upper edge and the lower edge of the slag discharge port. The utility model relates to an annular tank is when effectively getting rid of the dross, is favorable to improving fermentation efficiency.

Description

Straw fermenting installation convenient to remove dross

Technical Field

The utility model relates to a straw fermentation technical field, concretely relates to straw fermentation device convenient to remove dross.

Background

The method is characterized in that the straws are used as main raw materials to carry out biogas anaerobic fermentation, when a fermentation tank is in a static state, the straw raw materials float upwards due to large volume and small specific gravity, after floating slag of the straw raw materials float to the liquid level of the fermentation tank, the straw raw materials are difficult to decompose for a long time, and the straw raw materials slowly lack water and are dried and condensed to form crusts.

The large amount of straw raw materials float to form crusts, so that methane generated in the fermentation tank cannot be smoothly discharged and only can be gathered at the lower part of a crusting layer, a large amount of methane is retained in fermentation liquor, and more carbon dioxide in the methane is dissolved in the fermentation liquor, so that the pH value of the fermentation liquor is reduced, and the gas generation is further influenced.

In order to improve the incrustation phenomenon, the technicians in the field propose to crush the crust layer, so that the crust material is broken up and is in contact with the fermentation liquor again, but the crushed crust still floats above the fermentation liquor, which is not beneficial to the overflow of the biogas, and the risk of incrustation again still exists.

The Chinese patent application with application number of 2022110011276 discloses a straw fermentation device for reducing the crusting rate, wherein a fermentation tank is arranged in a barrel, a cavity is formed between the fermentation tank and the barrel, scum scraped from the top of the fermentation tank enters the cavity, a water pump for recovering fermentation liquor is arranged in the cavity, and the fermentation liquor entering the cavity is returned to the fermentation tank by the water pump. Among the technical scheme of this patent, although can realize reducing the incrustation rate, the design of its cavity has taken great area, can't ferment the operation in the cavity, is unfavorable for improving fermentation efficiency.

Disclosure of Invention

To the defect among the prior art, the to-be-solved technical problem of the utility model is to provide a straw fermenting installation convenient to remove dross, its design is the annular tank, when effectively getting rid of the dross, is favorable to improving fermentation efficiency.

In order to solve the technical problem, the utility model provides a straw fermentation device convenient for removing scum, which comprises a barrel with an open top, wherein a barrel cover is detachably and fixedly connected with the open top of the barrel; an annular cylindrical side plate is coaxially arranged in the cylinder body and divides the interior of the cylinder body into an inner fermentation tank and an outer fermentation tank which are coaxially arranged; the lower part of the annular cylindrical side plate is provided with a through hole for communicating the inner fermentation tank with the outer fermentation tank; a plurality of slag outlets are arranged at the same height on the upper part of the annular cylindrical side plate, a slag discharge pipe is connected to the slag outlets, and one end of the slag discharge pipe, which is far away from the slag outlets, penetrates through the barrel; the bottom of the cylinder cover is connected with a slag scraping mechanism, the slag scraping mechanism comprises a slag scraping plate extending into the inner fermentation tank and a driving mechanism driving the slag scraping plate to rotate, and the slag scraping plate is positioned between the upper edge and the lower edge of the slag discharge port.

Preferably, the scum board includes the sleeve, and fixed connection is at least two scrapers in this sleeve periphery, and is a plurality of the scraper surrounds sleeve circumference equipartition, just the scraper is the arc, and the direction of protrusion of this scraper is opposite rather than the direction of rotation.

Preferably, one end of the scraper far away from the sleeve is hinged with a roller, and the roller is in rolling contact with the inner wall of the annular cylindrical side plate.

Preferably, the driving mechanism comprises a motor arranged at the top of the cylinder cover, and an output shaft of the motor penetrates through the cylinder cover, extends into the cylinder body and is fixedly connected with the sleeve.

Preferably, the number of the scrapers is two.

Preferably, the cartridge cover and the cartridge body are bolted.

The utility model discloses following beneficial effect has: the utility model adopts the design of the annular tank, the inner fermentation tank and the outer fermentation tank are mutually communicated, the straw is positioned in the inner fermentation tank, the fermentation liquid in the inner fermentation tank can enter the outer fermentation tank through the through hole, and the scum floats on the upper layer, so that the scum in the inner fermentation tank can not enter the outer fermentation tank through the through hole, and the crusting of the outer fermentation tank can be effectively prevented; and set up the scum board in the interior fermentation vat, this scum board can be scraped the dross in the fermentation vat in under actuating mechanism's the drive through arranging the cinder notch, and the dross of scraping is arranged the direct discharge of sediment pipe to the barrel outside, is convenient for clear up. Therefore, the utility model discloses can effectively prevent interior fermentation vat and outer fermentation vat crust, and utilize comparatively abundant to the inside space of barrel, be favorable to improving fermentation efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a straw fermentation apparatus for conveniently removing scum according to an embodiment of the present invention;

fig. 2 is an internal structure diagram of the barrel according to the embodiment of the present invention.

Reference numerals:

1-a cylinder body; 11-ring column side plate; 111-a via; 112-a slag discharge port; 12-an inner fermentation tank; 13-an external fermentation tank; 14-a slag discharge pipe; 2-a cylinder cover; 21-a motor; 3-a slag scraping plate; 31-a sleeve; 32-a scraper; 33-roller.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in figures 1 and 2, the embodiment provides a straw fermentation device convenient for descuming, which comprises a barrel body 1 with an open top, wherein a barrel cover 2 is connected to the open top of the barrel body 1 through a bolt.

An annular cylindrical side plate 11 is coaxially arranged in the barrel body 1, the annular cylindrical side plate 11 divides the interior of the barrel body 1 into an inner fermentation tank 12 and an outer fermentation tank 13 which are coaxially arranged, wherein the inner fermentation tank 12 is cylindrical, and the outer fermentation tank 13 is annular cylindrical. The lower part of the circular column-shaped lateral plate 11 is provided with a through hole 111 for communicating the inner fermentation tank 12 and the outer fermentation tank 13. When the fermentation tank is used, the fermentation liquid and the straw raw materials are filled in the inner fermentation tank 12, the fermentation liquid flows into the outer fermentation tank 13 through the through hole 111, and scum of the straw raw materials floats on the upper layer and cannot enter the outer fermentation tank 13 through the through hole 111, so that the scum in the outer fermentation tank 13 is less, and the problem of crusting does not exist.

Further, two slag outlets 112 are arranged at the same height on the upper portion of the annular cylindrical side plate 11, the two slag outlets 112 are symmetrically arranged, a slag discharge pipe 14 is connected to the slag outlet 112, and one end of the slag discharge pipe 14, which is far away from the slag outlet 112, penetrates through the barrel 1, so that scum is directly discharged to the outside of the barrel 1.

The bottom of the cylinder cover 2 is connected with a slag scraping mechanism which comprises a slag scraping plate 3 extending into the inner fermentation tank 12 and a driving mechanism driving the slag scraping plate 3 to rotate, and the slag scraping plate 3 is positioned between the upper edge and the lower edge of the slag discharge port 112. Specifically, the scum board 3 comprises a sleeve 31 and two scrapers 32 fixedly connected to the periphery of the sleeve 31, the two scrapers 32 are uniformly distributed around the circumference of the sleeve 31, and the scrapers 32 are arc-shaped plates, the protruding direction of the scrapers 32 is opposite to the rotating direction of the scrapers 32, as shown in fig. 2, the scrapers 32 rotate clockwise, during the rotation process, scum in the inner fermentation tank 12 is scraped by the scrapers 32 and moves towards the inner wall direction of the annular cylindrical side plate 11 under the action of centrifugal force, and is scraped out to the scum pipe 14 through the scum outlet 112, in practice, in order to smoothly discharge the scum entering the scum pipe 14, the scum pipe 14 needs to be obliquely arranged, so that the scum gradually inclines downwards along the direction away from the annular cylindrical side plate 11, and then the scum can be smoothly discharged under the combined action of gravity and centrifugal force.

Specifically, the driving mechanism includes a motor 21 disposed on the top of the cover 2, and an output shaft of the motor 21 penetrates through the cover 2 and extends into the barrel 1 and is fixedly connected to the sleeve 31.

Further, the end of the scraper 32 away from the sleeve 31 is hinged with a roller 33, and the roller 33 is in rolling contact with the inner wall of the annular cylindrical side plate 11 to reduce the friction between the scraper 32 and the annular cylindrical side plate 11.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a straw fermenting installation convenient to descum which characterized in that includes:

the top opening of the cylinder body is detachably and fixedly connected with a cylinder cover;

an annular cylindrical side plate is coaxially arranged in the cylinder body and divides the interior of the cylinder body into an inner fermentation tank and an outer fermentation tank which are coaxially arranged;

the lower part of the annular cylindrical side plate is provided with a through hole for communicating the inner fermentation tank with the outer fermentation tank;

a plurality of slag outlets are arranged at the same height on the upper part of the annular cylindrical side plate, a slag discharge pipe is connected to the slag outlets, and one end of the slag discharge pipe, which is far away from the slag outlets, penetrates through the barrel;

the bottom of the cylinder cover is connected with a slag scraping mechanism, the slag scraping mechanism comprises a slag scraping plate extending into the inner fermentation tank and a driving mechanism driving the slag scraping plate to rotate, and the slag scraping plate is positioned between the upper edge and the lower edge of the slag discharge port.

2. The straw fermentation apparatus for facilitating descuming of the straw according to claim 1, wherein:

the scum board includes the sleeve, and two at least scraper blades of fixed connection in this sleeve periphery, and is a plurality of the scraper blade centers on sleeve circumference equipartition, just the scraper blade is the arc, and the direction of protrusion of this scraper blade is opposite rather than the direction of rotation.

3. The straw fermentation apparatus for facilitating descuming of the straw according to claim 2, wherein:

one end of the scraper far away from the sleeve is hinged with a roller, and the roller is in rolling contact with the inner wall of the annular cylindrical side plate.

4. The straw fermentation apparatus for facilitating descuming of the straw according to claim 2, wherein:

the driving mechanism comprises a motor arranged at the top of the cylinder cover, and an output shaft of the motor penetrates through the cylinder cover, extends into the cylinder body and is fixedly connected with the sleeve.

5. The straw fermentation apparatus for facilitating descuming of the straw according to claim 2, wherein:

the number of the scrapers is two.

6. The straw fermentation apparatus for facilitating descuming of the straw according to claim 1, wherein:

the cylinder cover is connected with the cylinder body through bolts.