CN216726877U

CN216726877U - Stirring formula methane-generating pit that plant was used

Info

Publication number: CN216726877U
Application number: CN202220326741.9U
Authority: CN
Inventors: 曲威; 亓守贺; 杨守军; 宋丽芬; 邵蕾
Original assignee: Yantai Research Institute of China Agricultural University
Current assignee: Yantai Research Institute of China Agricultural University
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-06-14
Anticipated expiration: 2032-02-18

Abstract

The utility model belongs to the technical field of livestock breeding, in particular to a stirring type biogas digester for a farm, which comprises a biogas digester, wherein an annular groove is formed in the top of the biogas digester, a sealing cover is arranged inside the annular groove, a filter residue net is arranged inside the biogas digester, a fixed outer ring is arranged on the periphery of the filter residue net, through holes are formed in the front side wall, the rear side wall, the left side wall and the right side wall of the fixed outer ring, supporting rods are connected inside the through holes in a sliding manner, a limiting groove is formed in the inner wall of the biogas digester, springs are arranged on the outer wall of the supporting rods, a stirring shaft is arranged inside the biogas digester, a motor is arranged at the top end of the stirring shaft, stirring blades are arranged on the outer wall of the stirring shaft, and a scraping plate is arranged at one end of the stirring blades, which is far away from the stirring shaft, so that the scum of excrement can be prevented from floating to the upper surface of the excrement and crusting to influence the discharge of the biogas, and when the filter residue net is blocked, the filter residue net can be conveniently maintained and replaced, so that the normal discharge of the methane is ensured.

Description

Stirring formula methane-generating pit that plant was used

Technical Field

The utility model belongs to the technical field of livestock breeding, and particularly relates to a stirring type biogas digester for a farm.

Background

At present, energy is increasingly tense and environmental pollution is serious, the utilization of renewable energy is particularly important, for example, a methane tank for a farm, domestic garbage such as human and animal excreta and the like can be utilized to generate combustible gas in an anaerobic environment for daily use by people, the methane tank has important significance for reducing conventional energy consumption, reducing agricultural environmental pollution, improving agricultural comprehensive productivity, improving the life quality of farmers and promoting the development of agricultural recycling economy, the methane tank is in a static state for a long time, a layering phenomenon can occur, the methane tank can be generally divided into four layers of a scum layer, a clear liquid layer, an active layer and a sediment layer, the scum layer has more fermentation raw materials, the number of methane strains is less, the raw materials are not fully utilized, in addition, the scum is too thick, the methane can be influenced to enter a gas chamber, the clear liquid layer has more water, the number of fermentation raw materials is less, methane bacteria are less, the methane is not easy to generate, the active layer is a place with vigorous activities of anaerobic microorganisms, the lower sediment layer is an important part for generating the methane, although methane bacteria exist in the lower sediment layer, most raw materials do not have the condition for generating the methane, so a stirring type methane tank for a farm needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stirring type biogas digester for a farm, which can prevent excrement scum from floating to the upper surface of excrement to form crust and influence the discharge of biogas by arranging components such as a limiting groove, a fixed outer ring, a supporting rod, a spring, a filter residue net, a stirring shaft, a stirring blade, a sealing cover and the like, and can be conveniently maintained and replaced when the filter residue net is blocked, so that the normal discharge of biogas is ensured.

The utility model provides the following technical scheme: a stirring type biogas digester for a farm comprises a biogas digester, wherein a circular groove is formed in the top of the biogas digester, a sealing cover is arranged inside the circular groove, an exhaust port is formed in the top of the sealing cover, an exhaust pipe is arranged inside the exhaust port, a feed inlet is formed in the front side wall of the biogas digester, a feed pipe is arranged inside the feed inlet, a filter residue net is arranged inside the biogas digester, a fixed outer ring is arranged on the periphery of the filter residue net, through holes are formed in the front side wall, the rear side wall, the left side wall and the right side wall of the fixed outer ring, supporting rods are connected inside the through holes in a sliding mode, a limiting groove is formed in the inner wall of the biogas digester, one side, far away from the filter residue net, of each supporting rod is inserted into the limiting groove, a spring is arranged on the outer wall of each supporting rod and is arranged on one side, far away from the limiting groove, a stirring shaft is arranged inside the biogas digester, the filter residue net and sealed lid are successively run through at the top of (mixing) shaft, the top of (mixing) shaft is provided with the motor, the outer wall of (mixing) shaft is provided with stirring vane, stirring vane keeps away from the one end of (mixing) shaft and is provided with the scraper blade.

The outer wall of the methane tank is provided with a jack, the outer wall of the sealing cover is provided with a screw hole, a bolt is arranged inside the screw hole, and the bolt penetrates through the jack and is in threaded connection with the screw hole; the bottom of the sealing cover is placed in the annular groove, and the bolt penetrates through the jack and is in threaded connection with the screw hole, so that the sealing cover is fixed with the methane tank.

A movable plate is arranged at one end of the supporting rod, which is far away from the limiting groove, one end of the spring is fixedly connected with the fixed outer ring, and the other end of the spring is fixedly connected with the movable plate; when installing the filter residue net, with the bracing piece to the one side pulling of keeping away from the spacing groove for the bracing piece slides along the through-hole and stretches the spring, and when the inner wall that will fix the outer lane area filter residue net along the methane-generating pit glides downwards to the position that flushes with the spacing groove, the bracing piece resets under the elastic action of spring, makes the bracing piece insert the spacing inslot in order to support fixed outer lane, thereby fixes the position of filter residue net.

Wherein, one side of the movable plate, which is far away from the spring, is provided with a pull ring; through set up the pull ring on the fly leaf, through withholding the pull ring, can be convenient for stimulate the bracing piece to can be convenient for install and change the filter residue net, thereby guarantee that marsh gas normally discharges.

Wherein, the outer wall of the stirring blade is provided with a plurality of overflowing holes; through seting up a plurality of overflow hole on stirring vane's outer wall, when the motor drove the (mixing) shaft and rotates, drive stirring vane and rotate in the methane-generating pit, stir excrement and urine, the last overflow hole of stirring vane can reduce the resistance when stirring vane rotates, can form liquid passage in addition in order to increase the effect of excrement and urine stirring.

Wherein the scraper is arc-shaped; the scraper is arc-shaped, so that the scraper can be attached to the inner wall of the methane tank, and the scraper can scrape excrement adhered to the inner wall of the methane tank and uniformly mix the excrement with the excrement in the methane tank.

Wherein, the top of the sealing cover is provided with a handle; the sealing cover can be conveniently pulled out from the annular groove by arranging the carrying handle at the top of the sealing cover, and the methane tank is opened so as to be convenient for replacing and maintaining the filter residue net.

The size of the bottom of the sealing cover is matched with the size of the opening of the annular groove; the size of the bottom of the sealing cover is matched with the size of the opening of the annular groove, so that the sealing performance of the methane tank can be improved, and methane in the methane tank can be prevented from leaking.

The utility model has the beneficial effects that: when in use, the filter residue net is firstly installed in the methane tank, the support rod is pulled to one side far away from the limit groove, the support rod slides along the through hole and stretches the spring, the fixed outer ring drives the filter residue net to slide downwards along the inner wall of the methane tank to the position flush with the limit groove, the support rod is reset under the elastic action of the spring, the support rod is inserted into the limit groove to support the fixed outer ring, so that the filter residue net is fixed in the methane tank, the bottom of the sealing cover is placed in the annular groove, the bolt passes through the jack and is in threaded connection with the screw hole, the sealing cover and the methane tank are fixed to ensure the sealing performance of the methane tank, excrement is poured into the methane tank along the feed pipe, after the excrement is placed in the methane tank for a period of time, the motor is started to drive the stirring shaft of the motor to rotate so as to drive the stirring blades to rotate, excrement in the methane tank is uniformly stirred, the overflowing holes in the stirring blades can reduce the resistance of the stirring blades during rotation, a liquid channel can be formed to increase the stirring effect of the excrement, meanwhile, the stirring blades drive the scraper blades to rotate to scrape the excrement adhered to the inner wall of the methane tank, a filter residue net is arranged in the methane tank to block excrement floating slag, the phenomenon that the excrement floating slag on the excrement floating slag is encrusted on the upper surface of the excrement to influence the discharge of the methane is prevented, and the excrement and the like can be blocked in the stirring process of the excrement to prevent the excrement and the like from being thrown to a sealing cover and an exhaust pipe to agglomerate to influence the discharge of the methane;

when the filter residue net needs to be replaced and maintained, the bolt is screwed out from the screw hole and the jack by screwing the bolt, the sealing cover is taken down from the annular groove, the pull ring is pulled to one side far away from the limiting groove, the support rod and the movable block are driven to slide to one side far away from the limiting groove and stretch the spring, the support rod is pulled out from the limiting groove, the filter residue net is taken out from the methane tank for replacement or maintenance, and therefore normal discharge of methane is guaranteed.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is a schematic front sectional view of the present invention;

FIG. 4 is a schematic view of a partial top cross-sectional structure of the present invention;

FIG. 5 is a schematic top view of the cross-sectional structure of the present invention.

In the figure: 1. a biogas generating pit; 2. an annular groove; 3. a sealing cover; 4. an exhaust port; 5. an exhaust pipe; 6. a feed pipe; 7. filtering a residue net; 8. fixing the outer ring; 9. a through hole; 10. a support bar; 11. a limiting groove; 12. a spring; 13. a stirring shaft; 14. a motor; 15. a stirring blade; 16. a squeegee; 17. a jack; 18. a bolt; 19. a movable plate; 20. a pull ring; 21. an overflowing hole; 22. a handle is carried.

Detailed Description

Referring to fig. 1-5, the present invention provides the following technical solutions: a stirring type biogas digester for a farm comprises a biogas digester 1, wherein a ring-shaped groove 2 is formed in the top of the biogas digester 1, a sealing cover 3 is arranged inside the ring-shaped groove 2, an exhaust port 4 is formed in the top of the sealing cover 3, an exhaust pipe 5 is arranged inside the exhaust port 4, a feed inlet is formed in the front side wall of the biogas digester 1, a feed pipe 6 is arranged inside the feed inlet, a filter residue net 7 is arranged inside the biogas digester 1, a fixed outer ring 8 is arranged on the periphery of the filter residue net 7, through holes 9 are formed in the front side wall, the rear side wall, the left side wall, the right side wall and the front side wall of the fixed outer ring 8, a support rod 10 is connected inside the through holes 9 in a sliding mode, a limit groove 11 is formed in the inner wall of the biogas digester 1, one side, far away from the filter residue net 7, of the support rod 10 is inserted into the limit groove 11, a spring 12 is arranged on the outer wall of the support rod 10, the utility model discloses a methane tank, including bracing piece 10, spacing groove 11, spring 12 sets up the one side of keeping away from spacing groove 11 at the bracing piece, the inside of methane tank 1 is provided with (mixing) shaft 13, filter residue net 7 and sealed lid 3 are run through successively at the top of (mixing) shaft 13, the top of (mixing) shaft 13 is provided with motor 14, the outer wall of (mixing) shaft 13 is provided with stirring vane 15, stirring vane 15 keeps away from the one end of (mixing) shaft 13 and is provided with scraper blade 16.

The outer wall of the methane tank 1 is provided with an insertion hole 17, the outer wall of the sealing cover 3 is provided with a screw hole, a bolt 18 is arranged inside the screw hole, and the bolt 18 penetrates through the insertion hole 17 to be in threaded connection with the screw hole; the bottom of the sealing cover 3 is placed in the annular groove 2, and the bolt 18 passes through the jack 17 to be in threaded connection with the screw hole, so that the sealing cover 3 is fixed with the methane tank 1.

A movable plate 19 is arranged at one end of the support rod 10 far away from the limiting groove 11, one end of the spring 12 is fixedly connected with the fixed outer ring 8, and the other end of the spring 12 is fixedly connected with the movable plate 19; when installing filter residue net 7, with bracing piece 10 to the one side pulling of keeping away from spacing groove 11 for bracing piece 10 slides along through-hole 9 and stretches spring 12, when will fixing outer lane 8 and taking filter residue net 7 to slide to the position that flushes with spacing groove 11 along the inner wall of methane-generating pit 1 downwards, bracing piece 10 resets under spring 12's elastic action, makes bracing piece 10 insert in order to support fixed outer lane 8 to the spacing groove 11, thereby fixes filter residue net 7's position.

A pull ring 20 is arranged on one side of the movable plate 19 away from the spring 12; through set up pull ring 20 on fly leaf 19, through detaining pull ring 20, can be convenient for stimulate bracing piece 10 to can be convenient for install and change filter residue net 7, thereby guarantee that marsh gas normally discharges.

The outer wall of the stirring blade 15 is provided with a plurality of overflowing holes 21; through seting up a plurality of overflow hole 21 on stirring vane 15's outer wall, when motor 14 drove (mixing) shaft 13 and rotates, drive stirring vane 15 and rotate in methane-generating pit 1, stir excrement and urine, overflow hole 21 on stirring vane 15 can reduce the resistance when stirring vane 15 rotates, can form the effect of liquid channel in order to increase excrement and urine stirring moreover.

The scraper 16 is arc-shaped; the scraper 16 is arc-shaped, so that the scraper 16 can be attached to the inner wall of the methane tank 1, and the scraper 16 can scrape off the excrement adhered to the inner wall of the methane tank 1 and uniformly mix the excrement with the excrement in the methane tank 1.

A handle 22 is arranged at the top of the sealing cover 3; the handle 22 is arranged at the top of the sealing cover 3, so that the sealing cover 3 can be conveniently pulled out from the annular groove 2, and the biogas digester 1 is opened to facilitate replacement and maintenance of the residue filtering net 7.

The size of the bottom of the sealing cover 3 is matched with the size of the opening of the annular groove 2; the size of the bottom of the sealing cover 3 is matched with the size of the opening of the annular groove 2, so that the sealing performance of the methane tank 1 can be improved, and the methane in the methane tank 1 can be prevented from leaking.

The working principle and the using process of the utility model are as follows: when in use, the filter residue net 7 is firstly installed in the methane tank 1, the support rod 10 is pulled towards one side far away from the limit groove 11, so that the support rod 10 slides along the through hole 9 and stretches the spring 12, the fixed outer ring 8 with the filter residue net 7 slides downwards along the inner wall of the methane tank 1 to the position flush with the limit groove 11, the support rod 10 resets under the elastic action of the spring 12, the support rod 10 is inserted into the limit groove 11 to support the fixed outer ring 8, so that the filter residue net 7 is fixed in the methane tank 1, the bottom of the sealing cover 3 is placed in the annular groove 2, the bolt 18 passes through the jack 17 to be screwed with the screw hole, the sealing cover 3 is fixed with the methane tank 1 to ensure the sealing performance of the methane tank 1, excrement is poured into the methane tank 1 along the feed pipe 6, and after the excrement is placed in the methane tank 1 for a period of time, in order to increase the output of methane, the motor 14 is opened to enable the motor 14 to drive the stirring shaft 13 to rotate and drive the stirring blade 15 to rotate so as to uniformly stir the excrement in the methane tank 1, the overflowing hole 21 on the stirring blade 15 can reduce the resistance when the stirring blade 15 rotates and can form a liquid channel so as to increase the stirring effect of the excrement, meanwhile, the stirring blade 15 drives the scraper 16 to rotate so as to scrape the excrement adhered to the inner wall of the methane tank 1, the filter residue net 7 arranged in the methane tank 1 can block the excrement scum so as to prevent the excrement scum from forming on the upper surface of the excrement scum and affecting the discharge of the methane, meanwhile, the excrement and the like can be blocked in the stirring process of the excrement so as to prevent the excrement scum from being thrown to the sealing cover 3 and the exhaust pipe 5 to form caking and affecting the discharge of the methane, when the filter residue net 7 needs to be replaced and maintained, the bolt 18 is screwed out from the screw hole and the jack 17 by screwing the bolt 18, the sealing cover 3 is taken down from the annular groove 2, the pull ring 20 is pulled to one side far away from the limiting groove 11, the support rod 10 and the movable block are driven to slide to one side far away from the limiting groove 11 and stretch the spring 12, the support rod 10 is pulled out from the limiting groove 11, the filter residue net 7 is taken out from the methane tank 1 for replacement or maintenance, and therefore normal discharge of methane is guaranteed.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a stirring formula methane-generating pit that plant used which characterized in that: comprises a methane tank, wherein a ring groove is arranged at the top of the methane tank, a sealing cover is arranged inside the ring groove, an exhaust port is arranged at the top of the sealing cover, an exhaust pipe is arranged inside the exhaust port, a feed inlet is arranged on the front side wall of the methane tank, a feed pipe is arranged inside the feed inlet, a filter residue net is arranged inside the methane tank, a fixed outer ring is arranged on the periphery of the filter residue net, through holes are arranged on the front side wall, the rear side wall, the left side wall and the right side wall of the fixed outer ring, a support rod is connected inside the through holes in a sliding manner, a limit groove is arranged on the inner wall of the methane tank, one side of the support rod, which is far away from the filter residue net, is inserted into the limit groove, a spring is arranged on the outer wall of the support rod, the spring is arranged on one side of the support rod, which is far away from the limit groove, a stirring shaft is arranged inside the methane tank, and the top of the stirring shaft penetrates through the filter residue net and the sealing cover successively, the top of (mixing) shaft is provided with the motor, the outer wall of (mixing) shaft is provided with stirring vane, the one end that stirring vane kept away from the (mixing) shaft is provided with the scraper blade.

2. The biogas pool for a farm according to claim 1, wherein: the outer wall of the methane tank is provided with a jack, the outer wall of the sealing cover is provided with a screw hole, and a bolt is arranged inside the screw hole and penetrates through the jack to be in threaded connection with the screw hole.

3. The biogas pool for a farm according to claim 1, wherein: the one end that the spacing groove was kept away from to the bracing piece is provided with the fly leaf, the one end and the fixed outer lane fixed connection of spring, the other end and the fly leaf fixed connection of spring.

4. The biogas pool for a farm according to claim 3, wherein: and one side of the movable plate, which is far away from the spring, is provided with a pull ring.

5. The biogas pool for a farm according to claim 1, wherein: and a plurality of overflowing holes are formed in the outer wall of the stirring blade.

6. The biogas pool for a farm according to claim 1, wherein: the shape of the scraper is set to be arc.

7. The biogas pool for a farm according to claim 1, wherein: the top of the sealing cover is provided with a handle.

8. The biogas pool for a farm according to claim 1, wherein: the size of the bottom of the sealing cover is matched with the size of the opening of the annular groove.