CN220618899U

CN220618899U - Straw biogas fermentation pretreatment device

Info

Publication number: CN220618899U
Application number: CN202322212744.7U
Authority: CN
Inventors: 杨洪伟; 张�浩; 孙永; 张圣坤; 邵俊
Original assignee: Xuzhou Guoxin Biomass Energy Technology Co ltd
Current assignee: Xuzhou Guoxin Biomass Energy Technology Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-03-19
Anticipated expiration: 2033-08-17

Abstract

The utility model relates to a straw biogas fermentation pretreatment device which comprises a support frame, wherein a motor and a crushing box are arranged on the support frame, the motor is connected with a speed reducer, the output end of the speed reducer is connected with a driving rotating shaft, and the driving rotating shaft penetrates through the crushing box, and the other end of the driving rotating shaft is arranged outside the crushing box through a bearing. According to the straw biogas fermentation pretreatment device, the crushed straw is filtered and fully crushed and ground, so that the straw can be fully crushed into bulk materials, manual filtration is not needed, and multiple steps can be completed through one-time operation; the fully crushed straws are easier to corrode and can be directly put into a fermentation tank for anaerobic fermentation to prepare methane.

Description

Straw biogas fermentation pretreatment device

Technical Field

The utility model relates to the technical field of biogas fermentation pretreatment devices, in particular to a straw biogas fermentation pretreatment device.

Background

The straw is a good clean renewable energy source, is one of the most developed and utilized new energy sources, and has good economic, ecological and social benefits. The straw has various development and utilization ways, such as straw returning, straw gasification, straw power generation, ethanol production by straw, and the like. Therefore, by improving the comprehensive utilization rate of the straw, it is imperative to accelerate the conversion and utilization of the straw.

The existing straw plants are used as main sources of biogas and are important gas-producing substances in the biogas digester. In order to efficiently utilize the straw, pretreatment is required before the straw is put into the biogas digester. However, no matter the crop harvesting machinery is crushed or the hay cutting machinery is used for crushing to obtain bulk straw, the hardness of the bulk straw is high, the bulk straw is large, the crushing degree is insufficient, the decomposition is slow, and the bulk straw is directly put into a fermentation tank for anaerobic fermentation, so that the gas cannot be produced efficiently, and the gas production efficiency is reduced. Therefore, the pretreatment device is provided for straw fermentation, has good crushing effect and high corrosion degree of bulk materials, and is more beneficial to preparing methane.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the straw biogas fermentation pretreatment device which has a simple structure and is convenient to popularize.

The straw biogas fermentation pretreatment device comprises a support frame, wherein a motor and a crushing box are arranged on the support frame, the motor is connected with a speed reducer, the output end of the speed reducer is connected with a driving rotating shaft, and the driving rotating shaft penetrates through the crushing box, and the other end of the driving rotating shaft is arranged outside the crushing box through a bearing;

the driving rotating shaft is provided with a first tooth; a driven rotating shaft is also arranged in the crushing box, two ends of the driven rotating shaft are arranged outside the crushing box through bearings, and a second tooth meshed with the first tooth is arranged on the driven rotating shaft;

the bottom of smashing the case is equipped with the filter screen, smashing the top of case and being equipped with the hopper-shaped feed inlet.

Preferably, the filter screen is arc-shaped, and the filter screen is attached to the first tooth and the second tooth, so that the rotation of the first tooth and the second tooth is not affected.

Preferably, the filter screen is replaceable, and the filter screen is provided with through holes, and the through holes have multiple specifications.

Preferably, an auxiliary plate is arranged at the outer edge of the crushing box, and the auxiliary plate is fixed with the supporting frame by a reinforcing rib.

Preferably, a controller and a control panel are arranged in the support frame; the bottom of the supporting frame is an adjustable supporting leg.

The beneficial effects of the utility model are as follows:

according to the straw biogas fermentation pretreatment device, the crushed straw is filtered and fully crushed and ground, so that the straw can be fully crushed into bulk materials, manual filtration is not needed, and multiple steps can be completed through one-time operation; the fully crushed straws are easier to corrode and can be directly put into a fermentation tank for anaerobic fermentation to prepare methane.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is a side view of the present utility model;

FIG. 4 is a bottom view of the present utility model;

1-supporting frame, 2-motor, 3-crushing case, 4-supporting legs, 5-driving shaft, 6-tooth first, 7-driven shaft, 8-tooth second, 9-filter screen, 10-feed inlet, 11-accessory plate, 12-strengthening rib.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in the drawing, the straw biogas fermentation pretreatment device comprises a support frame 1, wherein a motor 2 and a crushing box 3 are arranged on the support frame 1, the motor 2 is connected with a speed reducer, the output end of the speed reducer is connected with a driving rotating shaft 5, the driving rotating shaft 5 passes through the crushing box 3, and the other end of the driving rotating shaft is arranged outside the crushing box 3 through a bearing; a controller and a control panel are arranged in the support frame 1; the bottom of the supporting frame 1 is provided with an adjustable supporting leg 4

The driving rotating shaft 5 is provided with a tooth I6; a driven rotating shaft 7 is also arranged in the crushing box 3, two ends of the driven rotating shaft 7 are arranged outside the crushing box 3 through bearings, and a tooth II 8 meshed with the tooth I6 is arranged on the driven rotating shaft 7; the first bearing is in meshed connection with the second bearing;

the bottom of the crushing box 3 is provided with a filter screen 9, the filter screen 9 is arc-shaped, the filter screen 9 is attached to the first tooth 6 and the second tooth 8, and the rotation of the first tooth 6 and the second tooth 8 is not influenced; the filter screen 9 is replaceable, a through hole is formed in the filter screen 9, and the through hole has multiple specifications; the top of the crushing box 3 is provided with a funnel-shaped feeding hole 10. An auxiliary plate 11 is arranged at the outer edge of the crushing box 3, and the auxiliary plate 11 is fixed with the support frame 1 by a reinforcing rib 12.

When the motor is used, the motor speed reducer drives the driving rotating shaft to rotate, the driving rotating shaft drives the driven rotating shaft to rotate, the first tooth and the second tooth are continuously meshed and rotated, and a gap is reserved in the middle of the first tooth and the second tooth; then, putting the straw into the feed inlet 10, rolling and crushing the straw in the crushing box by the first teeth and the second teeth, and dropping crushed bulk materials from the filter screen; for the residual materials which are not completely crushed or still have larger volume after crushing, the first teeth and the second teeth can scrape the residual materials from the filter screen, and the residual materials continue to be crushed and ground until the residual materials fall from the through holes of the filter screen, so that the straw crushing is ensured to be more complete and sufficient, and the straw fermentation and biogas production are more beneficial.

The above description is illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, but is to be accorded the full scope of the claims.

Claims

1. The straw biogas fermentation pretreatment device is characterized by comprising a support frame (1), wherein a motor (2) and a crushing box (3) are arranged on the support frame (1), the motor (2) is connected with a speed reducer, the output end of the speed reducer is connected with a driving rotating shaft (5), the driving rotating shaft (5) penetrates through the crushing box (3), and the other end of the driving rotating shaft is arranged outside the crushing box (3) through a first bearing;

the driving rotating shaft (5) is provided with a first tooth (6); a driven rotating shaft (7) is further arranged in the crushing box (3), two ends of the driven rotating shaft (7) are arranged outside the crushing box (3) through a bearing II, a tooth II (8) meshed with the tooth I (6) is arranged on the driven rotating shaft (7), and the bearing I is meshed with the bearing II;

the bottom of smashing case (3) is equipped with filter screen (9), smashing the top of case (3) and being equipped with hopper-shaped feed inlet (10).

2. The straw biogas fermentation pretreatment device according to claim 1, wherein: the filter screen (9) is arc, filter screen (9) with tooth one (6), tooth two (8) laminating, it does not influence the rotation of tooth one (6) and tooth two (8).

3. The straw biogas fermentation pretreatment device according to claim 1, wherein: the filter screen (9) is replaceable, a through hole is formed in the filter screen (9), and the through hole has multiple specifications.

4. The straw biogas fermentation pretreatment device according to claim 1, wherein: an auxiliary plate (11) is arranged at the outer edge of the crushing box (3), and the auxiliary plate (11) is fixed with the supporting frame (1) through reinforcing ribs (12).

5. The straw biogas fermentation pretreatment device according to claim 1, wherein: a controller and a control panel are arranged in the support frame (1); the bottom of the supporting frame (1) is provided with adjustable supporting feet (4).