阅读说明：本技术 一种螺旋进出料全混合干发酵厌氧反应器 (Spiral feeding and discharging full-mixing dry fermentation anaerobic reactor ) 是由 张无敌 刘健峰 唐郑康 黎富元 喻厚启 王昌梅 赵兴玲 尹芳 吴凯 柳静 杨红 于 2019-12-10 设计创作，主要内容包括：本发明公开了一种螺旋进出料全混合干发酵厌氧反应器,包括发酵罐、搅拌系统、进料池、螺旋进料装置和螺旋出料装置。发酵罐包括罐体和上盖,上盖上设有出气口；搅拌系统包括搅拌电机、搅拌轴和搅拌叶桨,搅拌电机固定于上盖上,搅拌轴与搅拌电机固定连接,搅拌轴穿过上盖,搅拌叶桨固定于搅拌轴上；进料池用以容纳待发酵原料；螺旋进料装置的进料端与进料池固定相连,进料池上设有与螺旋进料装置对应的第一开口,螺旋进料装置的出料端与罐体固定相连,罐体上设有与螺旋进料装置对应的第二开口；螺旋出料装置的进料端与罐体固定相连,罐体上设有与螺旋出料装置对应的第三开口。与现有技术相比,本发明改善了原料与接种物接触反应效率。(The invention discloses a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor which comprises a fermentation tank, a stirring system, a feeding pool, a spiral feeding device and a spiral discharging device. The fermentation tank comprises a tank body and an upper cover, and an air outlet is formed in the upper cover; the stirring system comprises a stirring motor, a stirring shaft and stirring blades, wherein the stirring motor is fixed on the upper cover, the stirring shaft is fixedly connected with the stirring motor, the stirring shaft penetrates through the upper cover, and the stirring blades are fixed on the stirring shaft; the feeding tank is used for accommodating raw materials to be fermented; the feeding end of the spiral feeding device is fixedly connected with the feeding pool, the feeding pool is provided with a first opening corresponding to the spiral feeding device, the discharging end of the spiral feeding device is fixedly connected with the tank body, and the tank body is provided with a second opening corresponding to the spiral feeding device; the feed end of the spiral discharging device is fixedly connected with the tank body, and the tank body is provided with a third opening corresponding to the spiral discharging device. Compared with the prior art, the invention improves the contact reaction efficiency of the raw materials and the inoculum.)

1. The utility model provides a spiral feeding and discharging mixes dry fermentation anaerobic reactor entirely which characterized in that includes:

the fermentation tank comprises a tank body and an upper cover, and an air outlet is formed in the upper cover;

the stirring system comprises a stirring motor, a stirring shaft and stirring blades, the stirring motor is fixed on the upper side of the upper cover, the stirring shaft is coaxially and fixedly connected with the stirring motor, the stirring shaft downwards penetrates through the upper cover, and the stirring blades are fixed on the stirring shaft and are positioned in the tank body;

a feed tank to hold a feedstock to be fermented;

the feeding end of the spiral feeding device is fixedly connected with the feeding pool, a first opening corresponding to the spiral feeding device is arranged on the feeding pool, the discharging end of the spiral feeding device is fixedly connected with the tank body, and a second opening corresponding to the spiral feeding device is arranged on the tank body;

the feeding end of the spiral discharging device is fixedly connected with the tank body, and a third opening corresponding to the spiral discharging device is formed in the tank body.

2. The spiral feeding and discharging full-mixing dry fermentation anaerobic reactor according to claim 1, wherein the spiral feeding device comprises a feeding motor, a feeding conveying pipe and a feeding packing auger shaft, the feeding motor is fixed on the feeding tank, the feeding packing auger shaft is coaxially and fixedly connected with a rotating shaft of the feeding motor, the feeding packing auger shaft is positioned in the feeding conveying pipe, the feeding end of the feeding conveying pipe is fixedly connected with the feeding tank, and the discharging end of the feeding conveying pipe is fixedly connected with the tank body.

3. The spiral feeding and discharging full-mixing dry fermentation anaerobic reactor according to claim 1, wherein the spiral discharging device comprises a discharging motor, a discharging motor support, a discharging conveying pipe and a discharging auger shaft, the discharging motor is fixed on the discharging motor support, the discharging auger shaft is coaxially and fixedly connected with a rotating shaft of the discharging motor, the discharging auger shaft is positioned in the discharging conveying pipe, and a feeding end of the discharging conveying pipe is fixedly connected with the tank body.

4. The spiral feeding and discharging full-mixing dry fermentation anaerobic reactor according to claim 1, wherein the material in the feeding tank comprises fermentation raw materials and a taking and discharging material, the taking and discharging material is the material discharged from the third opening, and the material in the feeding tank is formed by mixing one half of the taking and discharging material with the fermentation raw materials in a ratio of 1: 1.

5. The spiral feeding and discharging full-mixing dry fermentation anaerobic reactor according to claim 1, characterized in that the concentration of the fermentation liquid in the tank body is 20-30%.

6. The spiral feeding and discharging full-mixing dry fermentation anaerobic reactor according to claim 1, wherein the stirring paddle is stirred once every 6 hours for 20 minutes.

Technical Field

The invention relates to the technical field of anaerobic bioreactors, in particular to a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor.

Background

Biogas fermentation is an effective way for treating organic waste and realizing the resource utilization of the waste. Through the process of methane fermentation, organic matters can be decomposed by microorganisms to generate clean energy methane, so that the resource utilization of organic wastes is realized, and the methane fermentation is an important link of an agricultural circular economy development mode. In the anaerobic digestion process, the application of the mixing and stirring technology can effectively solve the problems of difficult mass transfer, uneven physical, chemical and biological properties and the like caused by the fact that microorganisms and degradable organic matters cannot be actually contacted, thereby improving the performance of the reactor and improving the gas production rate of the anaerobic digestion.

The dry fermentation of methane is also called solid anaerobic fermentation, which takes solid organic wastes such as straws, domestic garbage, livestock and poultry manure and the like as raw materials, utilizes anaerobic microorganism fermentation to produce methane, and the TS content in a reaction system reaches 20-30 percent. Although the existing dry fermentation reactor can treat the fermentation product with higher concentration, the problems of less methane yield, nonuniform gas production, low gas production rate and the like caused by large-area acidification in the fermentation process due to difficult mass transfer and nonuniform stirring.

Disclosure of Invention

The invention aims to provide a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor, which is used for solving the technical problems in the prior art, fully degrading organic matters in feed liquid and achieving a better anaerobic reaction effect.

In order to achieve the purpose, the invention provides the following scheme:

the invention discloses a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor, which comprises:

the fermentation tank comprises a tank body and an upper cover, and an air outlet is formed in the upper cover;

the stirring system comprises a stirring motor, a stirring shaft and stirring blades, the stirring motor is fixed on the upper side of the upper cover, the stirring shaft is coaxially and fixedly connected with the stirring motor, the stirring shaft downwards penetrates through the upper cover, and the stirring blades are fixed on the stirring shaft and are positioned in the tank body;

a feed tank to hold a feedstock to be fermented;

the feeding end of the spiral feeding device is fixedly connected with the feeding pool, a first opening corresponding to the spiral feeding device is arranged on the feeding pool, the discharging end of the spiral feeding device is fixedly connected with the tank body, and a second opening corresponding to the spiral feeding device is arranged on the tank body;

the feeding end of the spiral discharging device is fixedly connected with the tank body, and a third opening corresponding to the spiral discharging device is formed in the tank body.

Preferably, spiral feed arrangement includes feeding motor, feeding conveyer pipe and feeding auger axle, the feeding motor is fixed in on the feeding pond, feeding auger axle with the coaxial fixed linking to each other of pivot of feeding motor, feeding auger axle is located in the feeding conveyer pipe, the feed end of feeding conveyer pipe with the feeding pond is fixed linking to each other, the discharge end of feeding conveyer pipe with jar body is fixed linking to each other.

Preferably, spiral discharging device includes ejection of compact motor, ejection of compact motor support, ejection of compact conveyer pipe and ejection of compact auger axle, ejection of compact motor is fixed in on the ejection of compact motor support, ejection of compact auger axle with the coaxial fixed linking to each other of the pivot of ejection of compact motor, ejection of compact auger axle is located in the ejection of compact conveyer pipe, the feed end of ejection of compact conveyer pipe with jar body is fixed linking to each other.

Preferably, the materials in the feeding pool comprise fermentation raw materials and a material taking and discharging material, the material taking and discharging material is the material discharged from the third opening, and the materials in the feeding pool are formed by mixing one half of the material taking and discharging material and the fermentation raw materials in a ratio of 1: 1.

Preferably, the concentration of the fermentation liquid in the tank body is 20% -30%.

Preferably, the stirring blades are stirred for 20 minutes every 6 hours.

Compared with the prior art, the invention has the following technical effects:

the invention improves the contact reaction efficiency of the raw materials and the inoculum through the stirring system, and has the advantages of simple structure, good mass transfer effect, uniform stirring, stable system, large handling capacity and high gas production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor in the embodiment;

description of reference numerals: 1. a feed tank; 2. a stirring motor; 3. an air outlet; 4. stirring blade paddles; 5. a screw feeder; 6. a spiral discharging device; 7. and (4) fermenting the mixture.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a spiral feeding and discharging full-mixing dry fermentation anaerobic reactor, which is used for solving the technical problems in the prior art, fully degrading organic matters in feed liquid and achieving a better anaerobic reaction effect.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in FIG. 1, the present embodiment provides a spiral feeding and discharging fully-mixed dry fermentation anaerobic reactor, which comprises a fermentation tank 7, a stirring system, a feeding tank 1, a spiral feeding device 5 and a spiral discharging device 6.

Wherein, fermentation cylinder 7 is covered on including jar body and upper cover and is equipped with gas outlet 3. The upper cover can be opened and closed to facilitate maintenance and cleaning of the interior of the tank body, and the gas outlet 3 is used for being connected with a methane conveying pipeline (not shown in the figure). The stirring system comprises a stirring motor 2, a stirring shaft and stirring blades 4, wherein the stirring motor 2 is fixed on the upper side of the upper cover, the stirring shaft is coaxially and fixedly connected with the stirring motor 2, the stirring shaft downwards penetrates through the upper cover, and the stirring blades 4 are fixed on the stirring shaft and are positioned in the tank body. When the stirring motor 2 works, the stirring shaft and the stirring blades 4 on the stirring shaft are driven to synchronously rotate, so that microorganisms and degradable organic matters in the tank body are in more sufficient contact, and the fermentation efficiency is improved. Feeding tank 1 is used for holding the raw materials of treating the fermentation, and spiral feed arrangement 5 can be carried the raw materials in feeding tank 1 to the jar internal, and spiral discharge device 6 can take out the feed liquid after the fermentation in the jar body. The feed end of spiral feed arrangement 5 is fixed continuous with feed tank 1, is equipped with the first opening that corresponds with spiral feed arrangement 5 on feed tank 1, and the discharge end of spiral feed arrangement 5 is fixed continuous with the jar body, is equipped with the second opening that corresponds with spiral feed arrangement 5 on the jar body. The feed end of the spiral discharging device 6 is fixedly connected with the tank body, and a third opening corresponding to the spiral discharging device 6 is arranged on the tank body.

The spiral feeding device 5 and the spiral discharging device 6 are conventional structures in the art, and as shown in fig. 1, the spiral feeding device 5 of the present embodiment includes a feeding motor, a feeding conveying pipe, and a feeding auger shaft. The feeding motor is fixed on the feeding tank 1, and the feeding auger shaft is coaxially and fixedly connected with the rotating shaft of the feeding motor. The feeding auger shaft is positioned in the feeding conveying pipe, the feeding end of the feeding conveying pipe is fixedly connected with the feeding pool 1, and the discharging end of the feeding conveying pipe is fixedly connected with the tank body. When the feeding motor works, the feeding auger shaft is driven to rotate, so that the raw materials in the feeding pool 1 are conveyed into the tank body.

Spiral discharging device 6 includes ejection of compact motor, ejection of compact motor support (not drawn in the figure), ejection of compact conveyer pipe and ejection of compact auger axle, and on ejection of compact motor was fixed in ejection of compact motor support, ejection of compact auger axle linked to each other with the coaxial fixed of the pivot of ejection of compact motor, ejection of compact auger axle was located ejection of compact conveyer pipe, and the feed end and the jar body of ejection of compact conveyer pipe are fixed continuously. When the discharging motor works, the discharging auger shaft is driven to rotate, so that the raw materials in the tank body are conveyed into the tank body.

When the spiral feeding and discharging full-mixing dry fermentation anaerobic reactor is used, fermentation material liquid in the tank body is discharged through the spiral discharging device 6, then fermentation raw materials in the feeding pool 1 are conveyed to the tank body through the spiral feeding device 5, and then are stirred through the stirring blade paddles 4, and the fermentation material liquid enters a fermentation stage after being uniformly mixed. And one part of the materials discharged by the spiral discharging device 6 is put into the feeding pool 1 for recycling.

It should be noted that in this embodiment, the material in the feeding tank 1 includes a fermentation raw material and a material taking and discharging material, the material taking and discharging material is a material discharged from the third opening, and the material in the feeding tank 1 is formed by mixing one half of the material taking and discharging material with the fermentation raw material 1: 1; the concentration of the fermentation liquid in the tank body is 20-30%; the stirring paddle 4 stirs once every 6 hours, each time for 20 minutes.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.