CN219409704U - Straw biogas fermentation equipment - Google Patents

Abstract

The utility model relates to the field of fermentation equipment, and discloses straw biogas fermentation equipment, which comprises a fermentation box, wherein the upper end of the fermentation box is fixedly provided with a connecting box, the upper end of the connecting box is fixedly provided with a material guide opening, the upper end of the connecting box is fixedly provided with a motor, the lower end of the connecting box is opened, the lower end of the motor is fixedly provided with a rotating shaft, the periphery of the rotating shaft is fixedly provided with a helical blade, the lower end of the rotating shaft is connected with a mixing mechanism for stirring fermentation raw materials, a scraping plate is fixedly arranged on the rotating shaft, the upper end of the scraping plate is fixedly provided with a connecting plate, the connecting plates are symmetrically distributed on two sides of the connecting box, and the outer side of the connecting plate is fixedly provided with a stirring rod.

Description

Straw biogas fermentation equipment

Technical Field

The utility model relates to the technical field of fermentation equipment, in particular to straw biogas fermentation equipment.

Background

Biogas is a combustible gas produced by fermenting organic matters in an anaerobic environment under the conditions of certain temperature, humidity and pH value, and the construction of a straw biogas digester is one of important ways for solving the rural fuel problem.

The bulletin number is: the Chinese patent of CN204569920U discloses a high-efficiency straw biogas fermentation device, which comprises a pulverizer, a fermentation tank, an inter-water discharging tank and a waste lifter, wherein the pulverizer and the inter-water discharging tank are respectively arranged at two sides of the fermentation tank, a vibrating screen is arranged at the upper part in the pulverizer, two groups of guide tanks are arranged below the vibrating screen, a coarse grinding gear is arranged between the two groups of guide tanks, and a fine grinding gear is arranged below the two groups of guide tanks; the side of the fermentation tank is provided with a feed inlet, the lower part of the pulverizer is connected with the inside of the fermentation tank through the feed inlet, the side of the fermentation tank opposite to the feed inlet is provided with an acid liquor outlet and an acid liquor return port, an air outlet is arranged above the fermentation tank, the air outlet is communicated with external biogas using equipment, the acid liquor outlet is communicated with the lower part of a water pressure chamber discharge tank, a reflux liquid extractor is arranged in the water pressure chamber discharge tank, the upper end of the reflux liquid extractor extends out of the water pressure chamber discharge tank, and the acid liquor return port is connected with the upper end of the reflux liquid extractor; the waste lifter is arranged in the center of the fermentation tank, the waste lifter comprises a lifting rod arranged in the center of the lifter and a lifting screw arranged on the lifting rod, the lifting rod is connected with an externally arranged motor, two waste inlets are formed in the lower portion of the waste lifter, the upper end of the waste lifter extends out of the upper portion of the fermentation tank, a waste outlet is formed in the upper end of the waste lifter, and the waste outlet is connected with an externally arranged fertilizing device.

This patent has the following drawbacks: the device is inconvenient to stir fermentation raw materials in the fermentation box, affects the fermentation speed of microorganisms, and the fermentation liquid level is easy to crust, so that the contact area of bacteria and methane is reduced, the fermentation speed is slowed down, and the yield is reduced.

Therefore, the straw biogas fermentation equipment improves the problems.

Disclosure of Invention

The utility model aims to provide straw biogas fermentation equipment so as to solve the problems that the stirring of fermentation raw materials in a fermentation box is inconvenient, the fermentation speed of microorganisms is affected, the fermentation liquid level is easy to crust, the contact area of bacteria and biogas is reduced, the fermentation speed is slowed down and the yield is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a straw marsh gas fermentation equipment, includes the fermenting case, the upper end of fermenting case is fixed with the link box, the upper end of link box is fixed with the guide mouth, the upper end of link box is fixed with the motor, the lower extreme of link box is the opening type, the lower extreme of motor is fixed with the pivot, the periphery of pivot is fixed with helical blade, the lower extreme of pivot is connected with the mixing arrangement who is used for stirring fermentation raw materials.

Wherein, the feed inlet has been seted up to upper end one side of fermentation tank, and the discharge gate has been seted up to the opposite side.

The spiral blade is located inside the connecting box and is attached to the inner wall of the connecting box.

Wherein, the lower extreme of pivot stretches out the connection box, mixing arrangement is located the inside of fermentation tank.

The mixing mechanism comprises a scraping plate, a connecting plate and stirring rods, wherein the scraping plate is fixed on a rotating shaft, the connecting plate is fixed at the upper end of the scraping plate, the connecting plates are symmetrically distributed on two sides of the connecting box, and the stirring rods are fixed on the outer side of the connecting plate.

Wherein the scraping plate is arc-shaped and is attached to the inner bottom wall of the fermentation box.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, straw raw materials are added into the fermentation tank from the feed inlet for fermentation, the motor is opened to rotate positively, the rotating shaft is driven to drive the connecting plate to rotate, so that the stirring rod mixes the raw materials in the fermentation tank, after the fermentation is completed, the motor is started to rotate reversely, so that the rotating shaft drives the helical blades to rotate, waste materials in the fermentation tank are rotated into the connecting tank and then discharged through the feed inlet.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic diagram of an exploded view of the present utility model;

fig. 3 is a schematic view of the structure of the explosion diagram inside the connecting box of the present utility model.

In the figure: 1. a fermentation tank; 2. a feed inlet; 3. a discharge port; 4. a connection box; 5. a material guiding port; 6. a motor; 7. a rotating shaft; 8. a helical blade; 9. a scraper; 10. a connecting plate; 11. stirring rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: a straw biogas fermentation device comprises a fermentation tank 1, a connecting tank 4 is fixed at the upper end of the fermentation tank 1, a material guide opening 5 is fixed at the upper end of the connecting tank 4, a motor 6 is fixed at the upper end of the connecting tank 4, an opening type fermentation raw material in a biogas tank is arranged at the lower end of the connecting tank 4, a rotating shaft 7 is fixed at the lower end of the motor 6, a helical blade 8 is fixed at the periphery of the rotating shaft 7, a mixing mechanism for stirring fermentation raw materials is connected at the lower end of the rotating shaft 7, the straw raw materials are added into the fermentation tank 1 for fermentation, the motor 6 is opened for forward rotation, the rotating shaft 7 is driven to drive the mixing mechanism to mix the raw materials in the fermentation tank 1, through stirring, the fermentation raw materials can be uniformly distributed, the contact area of microorganisms and the raw materials is increased, the fermentation speed is accelerated, the fermentation liquid level is always in an active state, the liquid level is unfavorable for crusting, the fermentation raw materials in a biogas tank are always stirred and reflowed, the raw materials are not only broken, but also can be fully contacted with bacteria, the metabolism of the microorganisms is promoted, the microorganisms can be quickly grown, the fermentation speed is accelerated, the fermentation speed is improved, the gas yield is improved, the waste is completely, the waste is discharged through the rotation of the rotating shaft 7, and the helical blade 7 is driven to the inside the fermentation tank 4 to be discharged through the material guide opening 5 after the fermentation tank is completely.

Wherein, feed inlet 2 has been seted up to upper end one side of fermentation tank 1, and discharge gate 3 has been seted up to the opposite side, and feed inlet 2 is used for adding the inside of fermentation tank 1 with straw raw materials, and discharge gate 3 is convenient for marsh gas discharge.

Wherein, helical blade 8 is located the inside of connection case 4, and helical blade 8 laminates mutually with the inner wall of connection case 4, and helical blade 8 reversal can be with piling up on the inside waste material of fermentation case 1, then follows the discharge of feed inlet 5, is convenient for clear up fermentation case 1, practices thrift the cost of labor.

Wherein, connecting box 4 is stretched out to pivot 7's lower extreme, and mixing mechanism is located the inside of fermenting case 1, is convenient for install mixing mechanism in pivot 7's lower extreme, drives mixing mechanism through motor 6 and stirs the raw materials, and can carry out the chip removal to the waste material.

Wherein, mixing mechanism includes scraper blade 9, connecting plate 10 and stirring rod 11, and scraper blade 9 is fixed on pivot 7, and the upper end of scraper blade 9 is fixed with connecting plate 10, and connecting plate 10 symmetrical distribution is in the both sides of connecting box 4, and the outside of connecting plate 10 is fixed with stirring rod 11, and pivot 7 drives connecting plate 10 rotation for stirring rod 11 mixes the inside raw materials of fermentation tank 1.

Wherein, scraper blade 9 is convex, and laminates mutually with the interior diapire of fermenting case 1, and scraper blade 9 can clear up the interior diapire of fermenting case 1, reduces impurity and piles up in the inside of fermenting case 1.

Working principle: when the fermenting tank is used, straw raw materials are added into the fermenting tank 1 from the feed inlet 2 to ferment, the motor 6 is turned on to rotate positively, the rotary shaft 7 is driven to drive the connecting plate 10 to rotate, the stirring rod 11 is used for mixing raw materials in the fermenting tank 1, the fermenting raw materials can be uniformly distributed through stirring, the contact area of microorganisms and the raw materials is increased, the fermenting speed is accelerated, the fermenting liquid level is always in an active state and is unfavorable for liquid level crust, the fermenting raw materials in the methane tank are always stirred and flow back, the floating shell in the tank can be broken, the raw materials can be fully contacted with methane bacteria, metabolism of methane microorganisms is promoted, the methane microorganisms grow and propagate rapidly, the fermenting speed is accelerated, the gas yield is improved, after the fermentation is finished, the motor 6 is started to rotate, the rotary shaft 7 drives the spiral blades 8 to rotate, waste materials in the fermenting tank 1 are rotated into the connecting tank 4, and then the waste materials are discharged through the guide port 5.

Claims (6)

1. Straw biogas fermentation equipment, including fermenting case (1), its characterized in that: the upper end of fermentation case (1) is fixed with connection box (4), the upper end of connection box (4) is fixed with guide mouth (5), the upper end of connection box (4) is fixed with motor (6), the lower extreme of connection box (4) is open-ended, the lower extreme of motor (6) is fixed with pivot (7), the periphery of pivot (7) is fixed with helical blade (8), the lower extreme of pivot (7) is connected with the mixing arrangement who is used for stirring fermentation raw materials.

2. A straw biogas fermentation apparatus according to claim 1, characterized in that: a feeding hole (2) is formed in one side of the upper end of the fermentation box (1), and a discharging hole (3) is formed in the other side of the upper end of the fermentation box.

3. A straw biogas fermentation apparatus according to claim 1, characterized in that: the spiral blade (8) is located inside the connecting box (4), and the spiral blade (8) is attached to the inner wall of the connecting box (4).

4. A straw biogas fermentation apparatus according to claim 1, characterized in that: the lower end of the rotating shaft (7) extends out of the connecting box (4), and the mixing mechanism is positioned in the fermenting box (1).

5. The straw biogas fermentation apparatus of claim 4, wherein: the mixing mechanism comprises a scraping plate (9), a connecting plate (10) and stirring rods (11), wherein the scraping plate (9) is fixed on a rotating shaft (7), the connecting plate (10) is fixed at the upper end of the scraping plate (9), the connecting plate (10) is symmetrically distributed on two sides of the connecting box (4), and the stirring rods (11) are fixed on the outer side of the connecting plate (10).

6. The straw biogas fermentation apparatus of claim 5, wherein: the scraping plate (9) is arc-shaped and is attached to the inner bottom wall of the fermentation box (1).