CN211689042U

CN211689042U - Biogas fermentation device distributing type auxiliary stirring device

Info

Publication number: CN211689042U
Application number: CN201922224235.XU
Authority: CN
Inventors: 崔帅鹏; 娄源民; 方云姣
Original assignee: Henan Hi Tech Kingdo Industrial Co ltd
Current assignee: Henan Hi Tech Kingdo Industrial Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-16
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a biogas fermentation stirring technical field just discloses a biogas fermentation device distributing type auxiliary stirring device, including the marsh gas chamber, fixedly connected with scum layer between the inside left side wall of marsh gas chamber and the right side wall, fixedly connected with supernatant layer between the inside left side wall of marsh gas chamber and the right side wall, scum layer is located the top of supernatant layer, fixedly connected with active layer between the inside left side wall of marsh gas chamber and the right side wall, supernatant layer is located the top of active layer, fixedly connected with scum layer between the inside left side wall of marsh gas chamber and the right side wall, active layer is located the top on scum layer, four power device of last fixed surface of marsh gas chamber. The distributed auxiliary stirring method for the biogas fermentation device has the advantages of uniform stirring, no dead angle and the like, and solves the problems of non-uniform stirring and dead angle of the reactor in the mechanical stirring process.

Description

Biogas fermentation device distributing type auxiliary stirring device

Technical Field

The utility model relates to a biogas fermentation stirring technical field specifically is a biogas fermentation device distributing type auxiliary mixing device.

Background

At present, a plurality of commonly used biogas fermentation devices are tank type fermentation devices such as CSTR, UASB, USR and the like, and the only stirring is a CSTR complete mixing anaerobic fermentation process. Complete mixing is realized by stirring with the aid of external force, and the traditional stirring methods are roughly divided into three types, namely mechanical stirring, hydraulic stirring and methane stirring. As the name suggests, the mechanical stirring is to make the raw materials flow by means of a mechanical device, so as to achieve the purpose of complete mixing; the hydraulic stirring is to pump the raw materials at the bottom to the top by a pump, thereby achieving the purpose of stirring the materials; the biogas stirring is to convey biogas generated by fermentation into the fermentation tank through a fan, so that the biogas floats upwards in the materials to drive the materials to be stirred.

The three stirring modes have the condition of stirring dead angles, which can cause that the mixture can not be stirred at a certain part of the fermentation tank and the stirring is insufficient.

Disclosure of Invention

The utility model provides a marsh gas fermentation device distributing type auxiliary stirring method, which is not enough for the prior art, has the advantages of uniform stirring, no dead angle and the like, and solves the problems of nonuniform stirring and dead angle of the reactor in the mechanical stirring process.

For the purpose at the above-mentioned even no dead angle of stirring of realization, the utility model provides a following technical scheme: a distributed auxiliary stirring method of a biogas fermentation device comprises a biogas chamber, wherein a scum layer is fixedly connected between a left side wall and a right side wall in the biogas chamber, an upper clear liquid layer is fixedly connected between the left side wall and the right side wall in the biogas chamber, the scum layer is positioned above the upper clear liquid layer, an active layer is fixedly connected between the left side wall and the right side wall in the biogas chamber, the upper clear liquid layer is positioned above the active layer, a sediment layer is fixedly connected between the left side wall and the right side wall in the biogas chamber, the active layer is positioned above the sediment layer, four power devices are fixedly connected to the upper surface of the biogas chamber, auxiliary stirring shafts are fixedly connected to the output ends of the three power devices at the outer side, a main stirring shaft is fixedly connected to the output end of the power device in the middle, and a group of stirring blades is fixedly connected to the outer surface of the main stirring shaft, four stirring shaft connecting supports are fixedly connected to the bottom wall inside the slag settling layer, and the upper surfaces of the stirring shaft connecting supports are fixedly connected with the auxiliary stirring shaft and the bottom end of the main stirring shaft.

Preferably, the three auxiliary stirring shafts are evenly distributed in the biogas chamber, and the horizontal included angle between every two auxiliary stirring shafts is one hundred twenty degrees.

Preferably, the appearance of the auxiliary stirring shaft is in a screw auger shape, and a baffle is sleeved on the outer surface of the auxiliary stirring shaft.

Preferably, the upper surface of the biogas chamber is fixedly connected with four bottom plates, and the four bottom plates are connected with the corresponding power devices through bolts.

Preferably, the number of the stirring blades is not less than six, and the stirring blades are uniformly distributed on the outer surface of the main stirring shaft.

Advantageous effects

When the distributed auxiliary stirring method of the biogas fermentation device is used, a main biogas production area is an active layer, the area is rich in organic matters and bacteria, a sediment layer is mainly formed by residual substances and dead fermented bacteria after the fermentation of the organic matters, most of gas in a biogas chamber is generated in the active layer and floats to the biogas chamber, and the sediment layer only generate a small amount of gas; starting a power device, wherein a main stirring shaft breaks the layered state in the reactor, a scum layer, an upper clear liquid layer, an active layer and a small amount of sediment layer are mixed, so that zymogens are uniformly distributed in the tank body, and materials can be dissociated to the positions belonging to the materials after stirring is stopped according to the characteristics of the materials; the upper part of the auxiliary stirring shaft is arranged on the upper clear liquid layer, the lower part of the auxiliary stirring shaft is arranged on the active layer, feeding is carried out from the upper part after starting, discharging is carried out from the lower part, a stirring state is formed between the upper clear liquid layer and the active layer, the two layers are mixed, the gas production area is enlarged, the gas production rate is improved, and therefore the purpose of uniformity and no dead angle is achieved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the auxiliary stirring shaft of the present invention.

In the figure: 1 biogas chamber, 2 scum layers, 3 supernatant layers, 4 active layers, 5 scum layers, 6 auxiliary stirring shafts, 7 main stirring shafts, 8 power devices, 9 stirring shaft connecting supports and 10 stirring blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a distributed auxiliary stirring method for a biogas fermentation device comprises a biogas chamber 1, a scum layer 2 is fixedly connected between the left side wall and the right side wall inside the biogas chamber 1, an upper supernatant layer 3 is fixedly connected between the left side wall and the right side wall inside the biogas chamber 1, the scum layer 2 is positioned above the upper supernatant layer 3, an active layer 4 is fixedly connected between the left side wall and the right side wall inside the biogas chamber 1, the upper supernatant layer 3 is positioned above the active layer 4, a scum layer 5 is fixedly connected between the left side wall and the right side wall inside the biogas chamber 1, the active layer 4 is positioned above the scum layer 5, four power devices 8 are fixedly connected to the upper surface of the biogas chamber 1, four bottom plates are fixedly connected to the upper surface of the biogas chamber 1, all the four bottom plates are connected to corresponding power devices 8 through bolts, auxiliary stirring shafts 6 are fixedly connected to the output ends of the three power devices 8 outside, the quantity and the power of the auxiliary stirring shafts can be determined according to the engineering scale and the volume of the biogas chamber 1, three auxiliary stirring shafts 6 are evenly distributed in the biogas chamber 1, the horizontal included angle of every two auxiliary stirring shafts 6 is one hundred twenty degrees, the appearance of each auxiliary stirring shaft 6 is in a screw auger shape, a baffle is sleeved on the outer surface of each auxiliary stirring shaft 6, the output end of the intermediate power device 8 is fixedly connected with a main stirring shaft 7, the main stirring shaft 7 and the auxiliary stirring shafts 6 can be opened simultaneously or respectively, the main stirring shaft and the auxiliary stirring shaft can be freely matched according to the characteristics and the state of fermentation raw materials in the tank body, the outer surface of the main stirring shaft 7 is fixedly connected with a group of stirring blades 10, the quantity of the stirring blades 10 is not less than six, the stirring blades 10 are evenly distributed on the outer surface of the main stirring shaft 7, the transmission device 8 is arranged at the upper part of, meanwhile, the maintenance is convenient, the difference is that the main stirring shaft 7 adopts a stirring mode of blades 10, the auxiliary stirring shaft 6 adopts a stirring mode similar to a screw conveyer, four stirring shaft connecting supports 9 are fixedly connected to the bottom wall inside the sediment layer 3, the upper surfaces of the stirring shaft connecting supports 9 are fixedly connected with the bottom ends of the auxiliary stirring shaft 6 and the main stirring shaft 7, the main stirring shaft 7 and the auxiliary stirring shaft 6 do not extend to the bottom of the biogas chamber 1, a supporting device is arranged near the bottom and is used for being butted with the stirring shafts, the biogas fermentation device adopts a distributed auxiliary stirring method, when in use, a biogas production area is an active layer 4 which is rich in organic matters and bacteria, the sediment layer 5 is mainly the substances left after the organic matters are fermented and dead fermented bacteria, most of gas in the biogas chamber 1 is produced in the active layer 4 and floats to the biogas chamber 1, the scum layer 2 and the sediment layer 5 only produce a small amount of gas; starting a power device 8, breaking the layered state in the reactor by a main stirring shaft 7, mixing a scum layer 2, an upper clear liquid layer 3, an active layer 4 and a small amount of sediment layers 5 to uniformly distribute zymophytes in a tank body, and dissociating the materials to the positions of the zymophytes according to the characteristics of the materials after stirring is stopped; the upper part of the auxiliary stirring shaft 6 is arranged on the upper clear liquid layer 3, the lower part is arranged on the active layer 4, feeding is carried out from the upper part after starting, discharging is carried out from the lower part, a stirring state is formed between the upper clear liquid layer 3 and the active layer 4, the two layers are mixed, the gas production area is enlarged, the gas production rate is improved, and therefore the purpose of uniformity and no dead angle is achieved.

In conclusion, when the distributed auxiliary stirring method of the biogas fermentation device is used, the main biogas production area is the active layer 4 which is rich in organic matters and bacteria, the sediment layer 5 is mainly the substances left after the fermentation of the organic matters and the dead fermented bacteria, most of the gas in the biogas chamber 1 is generated in the active layer 4 and floats to the biogas chamber 1, and the sediment layer 2 and the sediment layer 5 only generate a small amount of gas; starting a power device 8, breaking the layered state in the reactor by a main stirring shaft 7, mixing a scum layer 2, an upper clear liquid layer 3, an active layer 4 and a small amount of sediment layers 5 to uniformly distribute zymophytes in a tank body, and dissociating the materials to the positions of the zymophytes according to the characteristics of the materials after stirring is stopped; the upper part of the auxiliary stirring shaft 6 is arranged on the upper clear liquid layer 3, the lower part is arranged on the active layer 4, feeding is carried out from the upper part after starting, discharging is carried out from the lower part, a stirring state is formed between the upper clear liquid layer 3 and the active layer 4, the two layers are mixed, the gas production area is enlarged, the gas production rate is improved, and therefore the purpose of uniformity and no dead angle is achieved.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a biogas fermentation device distributing type auxiliary mixing device, includes marsh gas chamber (1), its characterized in that: a scum layer (2) is fixedly connected between the left side wall and the right side wall inside the biogas chamber (1), an upper clear liquid layer (3) is fixedly connected between the left side wall and the right side wall inside the biogas chamber (1), the scum layer (2) is positioned above the upper clear liquid layer (3), an active layer (4) is fixedly connected between the left side wall and the right side wall inside the biogas chamber (1), the upper clear liquid layer (3) is positioned above the active layer (4), a scum layer (5) is fixedly connected between the left side wall and the right side wall inside the biogas chamber (1), the active layer (4) is positioned above the scum layer (5), four power devices (8) are fixedly connected to the upper surface of the biogas chamber (1), the output ends of the three power devices (8) at the outer side are fixedly connected with auxiliary stirring shafts (6), the output end of the power device (8) is fixedly connected with a main stirring shaft (7), the outer fixed surface of main (mixing) shaft (7) is connected with a set of stirring paddle leaf (10), sink four (mixing) shaft linking bridge (9) of fixedly connected with on the inside diapire of slag blanket (5), the upper surface of (mixing) shaft linking bridge (9) with vice (mixing) shaft (6) with the bottom fixed connection of main (mixing) shaft (7).

2. The distributed auxiliary stirring device for the biogas fermentation device as claimed in claim 1, wherein: the three auxiliary stirring shafts (6) are evenly distributed in the biogas chamber (1), and the horizontal included angle of every two auxiliary stirring shafts (6) is one hundred twenty degrees.

3. The distributed auxiliary stirring device for the biogas fermentation device as claimed in claim 1, wherein: the appearance of vice (mixing) shaft (6) is auger form, the surface cover of vice (mixing) shaft (6) is equipped with the baffle.

4. The distributed auxiliary stirring device for the biogas fermentation device as claimed in claim 1, wherein: the upper surface of the biogas chamber (1) is fixedly connected with four bottom plates, and the four bottom plates are connected with the corresponding power devices (8) through bolts.

5. The distributed auxiliary stirring device for the biogas fermentation device as claimed in claim 1, wherein: the number of the stirring blades (10) is not less than six, and the stirring blades (10) are uniformly distributed on the outer surface of the main stirring shaft (7).