WO2014206228A1

WO2014206228A1 - Intestine-like biogas generation system

Info

Publication number: WO2014206228A1
Application number: PCT/CN2014/080161
Authority: WO
Inventors: 陈初祥; 陈诚
Original assignee: 永州市天一生态农业开发有限公司
Priority date: 2013-06-24
Filing date: 2014-06-18
Publication date: 2014-12-31
Also published as: CN103289885B; CN103289885A

Abstract

Disclosed is an intestine-like biogas generation system, belonging to the field of biogas production device, and comprising a multiple inlet feeding device, an intestine-like fermentation pipeline and a biogas collecting device. Said multiple inlet feeding device mainly consists of several sewage collectors arranged on higher places, a collection pipe connected with the sewage collectors and a total feeding pipe. Said intestine-like fermentation pipeline comprises a storage chamber deep under the ground and intestine-like bending spiral multilayer stacked fermentation pipe buried in the ground. The feeding inlet of said fermentation pipeline is connected with the total feeding pipe. The biogas collecting device comprises a biogas collecting pipe and a gas storage member. The biogas collecting pipe is multiple provided, elicited from the gas outlet of the top-layer fermentation pipeline respectively. The organic materials such as excrement can be completely fermented, and automatic feed, automatic discharge, automatic separation of materials, automatic delivery to the field, no caking, no dregs, energy saving and environment protection can be achieved.

Description

Gut biogas generation system

技术领域Technical field

The invention relates to a biogas tank, in particular to an enteric biogas generating system which breaks through the design mode of the traditional biogas tank.

背景技术Background technique

At present, the biogas digesters that are being widely used are large-diameter circular or square, polygonal, tunnel-shaped container-type biogas digesters. Because the biogas residue stays in the fermentation room, it is difficult to ensure that the feed is too large due to the large diameter of the feed and the discharge control. The material is first-in-first-out, and it is not easy to control the full fermentation cycle time of the material in time. Therefore, the materials such as manure cannot be fully fermented and discharged, so that the biogas production rate is not high, and the discharged materials are fully fermented, and some Semi-fermentation, the odor is not completely eliminated, the bacteria are not completely killed, affecting the use of fertilizer. The material of the large inner diameter biogas digester is easy to agglomerate, affecting the fermentation effect, and is also stirred by a mixer to avoid this situation, but the production cost is increased. Moreover, the biogas residue after the fermentation of the existing biogas tank is transported to the field to use tools such as carts and pumps, and automatic transportation cannot be realized, which is time consuming and laborious. Existing biogas digesters often require high material costs for sealing to ensure anaerobic fermentation of materials. For example, cement methane pools should be continuously painted at set intervals during construction. 5-7 Layers, but also anti-seepage and leakage-proof materials, and even the best cement pool, there will be air leakage in three or four years. The existing biogas digesters are inconvenient to feed, and the raw materials are transported to the biogas digesters by using a trailer or the like, and cannot be automatically fed. The separation of the slag liquid after the fermentation of the existing biogas residue is carried out by a press, etc., and the cost is high and the energy consumption is large. Due to the particularity of the processed materials, the equipment is prone to failure, which is very troublesome. Due to the limited space of the fermentation tank, the existing biogas digesters can only fertilize excrement such as feces, can not ferment domestic sewage, domestic sewage can not be recycled, and sewage treatment facilities should be treated separately, and there is no concentration of domestic sewage in rural areas. Treatment, disorderly phenomenon, affecting environmental sanitation. Nowadays, many farmers respond to the call of the state to establish such a container-type biogas digester, often used If it fails in 2 years or so, if it produces little or no gas, it will be discarded and it will cause great waste. Some existing patent technologies such as the application number is 201210189261.3 'Efficient over-discharge automatic slag biogas digester', application number is '201110373294 ''Efficient biogas digesters and biogas production processes using livestock manure' can only solve one or two of the above problems in a targeted manner, and need to add facilities and equipment, the structure is complex, and the container is not changed in essence. There is no prior art to solve all of the above problems.

发明内容Summary of the invention

The main object of the present invention is to provide an enteric biogas generating system designed according to the principle of intestinal digestion of an animal, which can completely ferment organic materials such as feces, and realize automatic feeding, automatic discharging, automatic material separation and automatic transportation to The field is a breakthrough technological improvement in the field of biogas technology.

The invention provides an enteric biogas generating system, which comprises a multi-inlet feeding device, an intestinal fermentation line and a biogas collecting device;

The multi-inlet feeding device is mainly composed of a plurality of sewage collectors, a collecting pipe and a total feeding pipe placed at a high place;

The enteric fermentation line includes a multi-layered fermentation tube that is deeply excavated in a subterranean storage chamber, and is buried in a subterranean intestinal tract. The feeding port of the fermentation tube and the total feeding tube Connected

The biogas collecting device comprises a biogas collecting pipe and a gas storage component, and the biogas collecting pipe is provided with a plurality of gas collecting pipes, which are respectively taken out from a plurality of gas taking ports of the fermentation pipe.

Preferably, the fermentation pipeline is divided into a feed pipe, a fermentation pipe and a conveying pipe, and the feeding pipe is provided with a feeding curve, and the lowest point of the feeding curve is lower than the uppermost fermentation pipe pipe by at least 0.2. The conveying pipe is designed according to the length of the biogas slag fertilizer conveying place, and a discharge curve is arranged before the discharge port, and the lowest point of the feeding curve is lower than the uppermost fermentation pipe at least 0.2 The fermenting tube is placed in the storage tube chamber, and is composed of a plurality of straight tubes and a plurality of connecting elbows connected end to end, and a dredging hole or a dredge can be installed at a connecting elbow with a large curvature.

The plurality of gas intake ports are dispersedly disposed at a plurality of horizontal pipes of the uppermost fermentation pipe, and the uppermost fermentation pipe should be at least 0.6 below the ground. The meter is covered with mud, and the biogas collecting pipe is provided with a venting valve.

The fermentation tube may be hovered from bottom to top or from top to bottom, or spiraled horizontally and then spiraled downward or upward. The fermentation tube is hovered along the top of the storage tube chamber, and the length may be horizontal or inclined, and the fermentation tube The gap between the gaps is filled with the filling material, and the total height of the fermentation tube after hovering does not exceed 3 meters.

The plurality of blowdown collectors are located above the feed port of the fermentation pipe 2 Above the meter, multiple sewage collectors are installed in different production units of livestock breeding or residential toilets, bathrooms, kitchens, and connected to the collection pipes through the water elbows, all of which are connected to the total feed pipe.

a material separation device is connected to the discharge port of the conveying pipe, and the material separation device is mainly composed of a filter net, a liquid storage chamber and a biogas residue chamber, and the filter net is lower than the discharge port at least 1 Meter, at least 1 meter above the bottom of the reservoir.

The fermentation pipeline adopts a PE pipe with a diameter of more than 0.3 m, and the total length of the fermentation pipeline is such that the raw material is completed up to 60 times. The length required above the day.

The beneficial effects of the invention are: adopting the principle of animal intestinal digestion, designing the diameter and length of the fermentation pipeline according to the amount of the incoming material, so that the raw material is completely completed in the fermentation pipeline which is hovering for more than 60 days to ensure complete fermentation of the material, without Stirring, no agglomeration; completely buried in the ground, save space, can be hovered according to the terrain, infinitely extended, expand the fermentation space than the traditional biogas tank, have sufficient capacity to handle human and animal waste, domestic sewage, etc.; The principle of the connected device realizes the automatic feeding of materials, automatic discharging and automatic feeding to the field, saving a lot of labor compared with the traditional biogas tank; automatically separating and separating the biogas residue and the biogas slurry through the gravity material separation device, without special machinery Separation, energy saving and environmental protection; the bending or the bending bend is provided with the dredging hole or the dredging device, which can make the material go more smoothly; the PE tube with good flexibility is low in cost, easy to construct, and multi-layered to save production space, buried in Below 0.6 meters underground, the fermentation temperature is maintained by geothermal; various fermenting materials can be used, such as human and animal waste or weeds, rotten fruits, etc. Garbage and organic domestic sewage are turned into waste after complete fermentation, and have no odor. After separation, the biogas slurry becomes a plant nutrient solution, which is most suitable for raising flowers and grass, clean and sanitary, and the biogas residue becomes a good organic fertilizer; Resilience PE The tube is well sealed and leaked, adapts to the requirements of anaerobic fermentation, and is convenient to construct; the gas pressure of the collected biogas can be adjusted by designing the feed curve of the fermentation pipeline and the downward curvature of the discharge curve; The pipeline pipe buried in the ground has the functions of transportation and fermentation. It can be designed according to the length of the pipe and can be extended to the field and does not occupy the floor space. Due to the durable PE pipe, the system has a long service life and low management and maintenance costs. Large or small, suitable for both home farmers and large farms.

附图说明DRAWINGS

Figure 1 is a schematic structural view of the present invention;

2 is a structural view of another spiral mode of the fermentation tube of the present invention;

The object, features, and advantages of the invention will be further described in conjunction with the embodiments.

具体实施方式 detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to Figure 1, an embodiment of the enteric biogas generating system of the present invention is proposed. The present embodiment includes a multi-inlet feeding device, a gut-type fermentation line, a biogas collecting device, and the multi-inlet feeding device is mainly collected by a plurality of sewage collectors 1 placed at a high place and connected to a sewage collector. Tube 2, total feed tube 3; the intestinal fermentation line comprises a storage tube chamber 4 dug deep underground, a multi-layered fermentation pipeline which is curved and spiraled in the underground intestinal tract, the feeding port of the fermentation pipeline and the Total feed pipe 3 The biogas collecting device comprises a biogas collecting pipe 5 and a gas storage component 6, and the biogas collecting pipe is provided with a plurality of gas collecting pipes, which are respectively taken out from a plurality of gas taking ports 7 of the uppermost fermentation pipe. The fermentation pipeline is divided into a feed pipe 8 , the fermentation tube 9 , the conveying pipe 10 , the feeding pipe is provided with a feeding curve 11 , and the lowest point of the feeding curve 11 is lower than the distance A of the uppermost fermentation pipe pipe by at least 0.2 m; the conveying pipe 10 According to the design length of the biogas slag fertilizer conveying place, a discharge curve 12 is arranged before the discharge port, and the lowest point of the discharge curve 12 is lower than the distance B of at least 0.2 m from the uppermost fermentation pipe; the fermentation Tube 9 It is placed in the storage chamber 4, and is composed of a plurality of straight tubes and a plurality of connecting elbows, which are connected end to end, and the through holes 13 can be opened at the connecting elbow with large curvature or sharp bend. The majority of the air intake ports 7 Dispersely disposed at a plurality of horizontal pipes of the uppermost fermentation pipe, the uppermost fermentation pipe should be at least 0.6 m below the ground and covered with mud, and the biogas collecting pipe 5 is provided with a venting valve 14 . Fermentation tube 9 Circling from top to bottom, the fermenting tube circulates in the condition of the storage chamber 4, and the length is not limited. It can be horizontal or inclined. The gap between the fermentation tubes 9 is filled with filling material. The total height of the fermentation tube after hovering does not exceed 3 Meter. The plurality of sewage collectors 1 are located more than 2 meters above the feed inlet of the fermentation pipeline, and a plurality of sewage collectors 1 Set in different production units of livestock breeding or residential toilets, bathrooms, kitchens, and connected to collection pipes 2 through the water elbows, all collection pipes 2 Both are connected to the main feed tube. A material separation device is connected to the discharge port of the conveying pipe, and the material separation device is mainly composed of a filter net 15, a liquid storage chamber 16, and a biogas residue chamber. In composition, the filter is at least 1 meter below the discharge port and at least 1 meter above the bottom surface of the liquid storage chamber. The fermentation pipeline adopts a PE pipe with a diameter of more than 0.3 m, and the total length of the fermentation pipeline is such that the raw material reaches the whole process. The length required for more than 60 days.

During normal use, raw materials such as poultry and animals will automatically enter the intestinal fermentation line from the total feeding tube and slowly move forward. From the feed inlet, the fermentation pipeline will be completed at least to the discharge port. 60 More than a day, to achieve complete fermentation, the biogas produced in the fermentation will run up the pipeline until the uppermost fermentation tube, after agglomeration and a certain pressure, a natural gas chamber is formed at the gas inlet. Since the gas inlet is opened at the horizontal pipe, the air intake chamber thus formed is in the shape of a long strip located at the upper portion of the pipe, does not affect the advancement of the raw material, opens the vent valve, and the biogas is collected into the gas storage component, and the fermented The material reaches the material separation device, and the separation of the biogas residue and the biogas slurry is realized by gravity. The air pressure of the air intake chamber is determined by the downward curvature of the feed curve 11 and the discharge curve 12, and the lowest point of the two curves is lower than the distance A and B of the uppermost fermentation tube, and the air pressure of the air intake chamber is taken. The bigger.

Referring to FIG. 2, Embodiment 2 is proposed. This embodiment and Embodiment 1 Basically the same, the difference lies in the spiraling mode of the fermentation tube, that is, the fermentation tube is hovered horizontally in the same plane and then spiraled downward or upward.

The above description is only a preferred embodiment of the present patent, and thus does not limit the scope of the patent protection. Any equivalent structural transformation made by using the content of this patent specification, or directly or indirectly applied to other related technical fields, is equally included in Within the scope of patent protection of the present invention.

Claims

A parenteral biogas generating system, characterized by comprising a plurality of feed inlet means, conduit intestinal fermentation, gas collection means;

The enteric fermentation line includes a multi-layered fermentation tube that is deeply excavated in a subterranean storage chamber, and is buried in a subterranean intestinal tract. The feeding port of the fermentation tube and the total feeding tube Connected; the fermentation pipeline is divided into a feed pipe, a fermentation pipe, and a conveying pipe, wherein the feeding pipe is provided with a feed curve, and the lowest point of the feed curve is lower than the uppermost fermentation pipe pipe. 0.2 m; the conveying pipe is designed according to the length of the biogas slag fertilizer conveying place, and a discharge curve is arranged before the discharge port, and the lowest point of the discharge curve is lower than the uppermost fermentation pipe at least 0.2 The fermenting tube is placed in the storage tube chamber, and is composed of a plurality of straight tubes and a plurality of connecting elbows connected end to end, and a dredging hole can be opened or a dredge can be installed at a connecting elbow with a large curvature;

The enteric biogas generating system according to claim 1, wherein the plurality of gas inlets are dispersedly disposed at a plurality of horizontal pipes of the uppermost fermentation pipe, and the uppermost fermentation pipe It should be at least 0.6 m below the ground and covered with mud, which is fitted with a bleed valve.

3. The parenteral biogas generating system according to claim 2, characterized in that the top-down or bottom-fermenting tube may hover, or horizontal or downward spiral upward spiral layers after fermentation The condition of the tube storage tank is hovering, the length is not limited, and it can be horizontal or inclined. The gap between the fermentation tubes is filled with filling material, and the total height of the fermentation tube after hovering does not exceed 3 meters.

4. The enteric biogas generation system according to claim 3, wherein the plurality of sewage collectors are located at a height of more than 2 meters above the feed inlet of the fermentation pipeline, and the plurality of sewage collectors are disposed in the livestock breeding. Different production units or residential toilets, bathrooms, kitchens, and connected to the collection pipe through the water elbow, all collection pipes are connected to the total feed pipe.

Parenterally according to claim biogas generating system of claim 4, wherein the delivery tube conduit connected to the discharge opening the material separating apparatus, said separating material is mainly composed of filter means, the reservoir chamber, The composition of the biogas residue chamber is at least 1 meter below the discharge port and at least 1 meter above the bottom surface of the liquid storage chamber.

The intestinal biogas generating system as claimed in claim 5, wherein said fermentation using PE pipe conduit is greater than the diameter of 0.3 meters, a total length of the fermentation raw material pipe which has completed more than 60 days throughout the Length required.