Garage type biogas device adopting full-dry fermentation process

Abstract

The utility model relates to the technical field of renewable energy sources, and particularly discloses a full-dry fermentation process garage type biogas device which comprises a fermentation tank body, a fermentation unit is arranged on the fermentation tank body; feeding square tube channels are symmetrically formed in the fermentation tank body; an inward-opening filtering door plate is in pin connection with the interior of the feeding square pipe channel; a second fastener is inserted into the inward-opening filter door plate corresponding to the opening of the fermentation tank body; through the feeding square pipe channel, when biogas residues need to be discharged after fermentation is completed, the sealing cover plate and the inward opening filter door plate are opened, so that a tool can penetrate through the feeding square pipe channel to enter the fermentation tank body, and the biogas residues can be quickly cleaned; the biogas slurry can be smoothly discharged by only opening the sealing cover plate and closing the inward opening filter door plate, and the content of the biogas slurry in the fermentation tank body is controlled to control the fermentation state; the fermentation tank body is placed on the ground, so that the fermentation tank body is more convenient to mount and move, and the problems that a plurality of positions and a plurality of structures need to be used for discharging existing biogas residues and biogas slurry, so that the structure is more complicated, and the overall mounting and dismounting are complicated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of renewable energy, in particular to a garage-type biogas device with a fully dry fermentation process. Background Technique

[0002] Biogas, as a renewable energy source, refers to a mixed gas produced by the decomposition of organic substances through a series of microorganisms in a specific anaerobic (oxygen-deficient) environment; this process is called anaerobic digestion or biogas fermentation, which usually occurs in swamps, wetlands in the natural environment, and artificially constructed biogas digesters.

[0003] The Chinese utility model patent with the publication number CN207958361U discloses a biogas fermentation facility on October 12, 2018, which includes an underground foundation pit, a framework buried in the underground foundation pit, and a biogas tank placed in the framework; the biogas tank is installed in the framework, and a slag discharge device extending into the biogas tank is provided on the side of the biogas tank; the slag discharge device includes a cylinder body and a rotating shaft inside the cylinder body, a driving motor for driving the rotating shaft to rotate is provided on the cylinder body, the lower end of the cylinder body extends into the biogas tank to a height of 1 / 2, the rotating shaft includes a spiral shaft section corresponding to the cylinder body for discharging residues, and a smooth shaft section at the lower end of the spiral shaft section, and a stirring paddle is provided at the bottom end of the smooth shaft section; a blanking elbow is provided at the upper end of the cylinder body corresponding to the top of the spiral shaft section. The structure design of the utility model is reasonable, the construction is simple, and at the same time, the fermentation facility is not affected by geological conditions. Even if it is used for a long time, it will not crack due to geological changes, will not leak air, the structure is stable and reliable, the use safety is high, and it can be reused.

[0004] However, the above-mentioned disclosed solution has the following deficiencies: the existing biogas fermentation device uses an installation method deep in the soil, so that before installation, it is necessary to dig a pit according to the width and height of the biogas fermentation device, which makes the installation complex, costly, and has low installation efficiency, and the efficiency of batch installation and use is low. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problem that the existing biogas fermentation device uses an installation method deep in the soil, so that before installation, it is necessary to dig a pit according to the width and height of the biogas fermentation device, which makes the installation complex, costly, and has low installation efficiency, and the efficiency of batch installation and use is low, and to provide a garage-type biogas device with a fully dry fermentation process.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions to achieve it;

[0007] The full-dry fermentation process garage-type biogas device described in the present utility model includes a fermentation tank body; a fermentation unit is provided on the fermentation tank body; a feed square pipe channel is symmetrically grooved on the fermentation tank body; an inward-opening filter door panel is connected inside the feed square pipe channel; a second fastener is inserted into the fermentation tank body through a hole corresponding to the inward-opening filter door panel; a hinge is fixedly connected at the opening of the feed square pipe channel; a sealing cover plate is fixedly connected to the hinge; a first fastener is inserted into the feed square pipe channel through a hole corresponding to the sealing cover plate.

[0008] Further, the fermentation unit includes a feed cover; the feed cover is detachably and hermetically fixedly connected to the upper end of the fermentation tank body; an air storage chamber is hermetically fixedly connected to the upper end of the fermentation tank body through an opening; a filter cage is connected and fixed to the lower end of the air storage chamber in a communicating manner; a gas guide pipe is connected and fixed to the side of the air storage chamber in a communicating manner; a first valve is provided on the gas guide pipe; a detection pipe is connected and fixed to the side of the gas guide pipe in a communicating manner; a second valve is provided on the detection pipe; an overflow pipe and a biogas slurry return pipe are provided through openings at the upper end of the fermentation tank body; a suction pump is provided at the lower end of the biogas slurry return pipe; the biogas generated in the fermentation tank body first enters the air storage chamber and then is led out through the gas guide pipe and enters the gas storage cabinet.

[0009] Further, a biogas residue and biogas slurry tank is provided at the lower ends of the suction pump and the slag discharge pipe.

[0010] Further, a slag discharge pipe is connected and fixed to the lower end of the feed square pipe channel through an opening; a fourth valve is provided on the slag discharge pipe.

[0011] Further, an air inlet hole is provided on the side of the fermentation tank body; an air inlet pipe is hermetically fixedly connected to the air inlet hole; a blower is connected and fixed to the end of the air inlet pipe in a communicating manner; a third valve is provided on the air inlet pipe.

[0012] Further, filter holes are uniformly provided on the inward-opening filter door panel.

[0013] The full-dry fermentation process garage-type biogas device provided by the present utility model has the following beneficial effects:

[0014] 1. When it is necessary to discharge biogas residues after fermentation is completed in the present utility model, the sealing cover plate and the inward-opening filter door panel are opened through the feed square pipe channel, so that tools can pass through the feed square pipe channel and enter the fermentation tank body, and thus the biogas residues can be quickly cleaned; by only opening the sealing cover plate and closing the inward-opening filter door panel, the biogas slurry can be smoothly discharged, and the biogas slurry content in the fermentation tank body can be controlled to control the fermentation state; and the fermentation tank body is placed on the ground, making installation and movement more convenient, solving the problems that the existing discharge of biogas residues and biogas slurry requires multiple positions and more complex structures, and the overall installation and disassembly are complex.

[0015] 2. By opening multiple feed covers of the present utility model, a large amount of raw materials can be filled through the holes simultaneously, and then the feed covers are closed for sealed fermentation. After fermenting for a certain period of time, the second valve is opened to test the biogas pressure and purity through the detection pipe, and then the first valve and the gas guide pipe are opened to store the biogas externally through a biogas tank. The overflow pipe is used to control the highest liquid level of the biogas slurry in the fermentation tank body, so that dry fermentation can proceed normally in the fermentation tank body to generate biogas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings;

[0017] Figure 1 is the first axonometric structure schematic diagram of the present utility model;

[0018] Figure 2 is the front view semi-sectional structure schematic diagram of the present utility model;

[0019] Figure 3 is the partial second axonometric structure schematic diagram of the present utility model;

[0020] Figure 4 is the partial third axonometric structure schematic diagram of the present utility model.

[0021] Explanation of the reference numerals in the drawings: 1, fermentation tank body; 2, feed cover; 3, gas storage chamber; 4, gas guide pipe; 5, first valve; 6, detection pipe; 7, second valve; 8, overflow pipe; 9, biogas slurry return pipe; 10, suction pump; 11, biogas residue and biogas slurry tank; 12, air inlet hole; 13, air inlet pipe; 14, third valve; 15, blower; 16, filter cage; 17, feed square pipe channel; 18, hinge; 19, sealing cover plate; 20, first fastener; 21, inward-opening filter door panel; 22, second fastener; 23, filter hole; 24, slag discharge pipe; 25, fourth valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that all directional indications (such as up-down-left-right-front-back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly. The connection can be a direct connection or an indirect connection.

[0025] Please refer to Figures 1-4 As shown, the fully dry fermentation process garage-type biogas device includes a fermentation tank body 1; a fermentation unit is provided on the fermentation tank body 1; a feeding square pipe channel 17 is symmetrically grooved on the fermentation tank body 1; an inward-opening filter door plate 21 is internally connected in the feeding square pipe channel 17; a second fastener 22 is inserted into the fermentation tank body 1 through a hole corresponding to the inward-opening filter door plate 21; a hinge 18 is fixedly connected to the opening of the feeding square pipe channel 17; a sealing cover plate 19 is fixedly connected to the hinge 18; a first fastener 20 is inserted into the sealing cover plate 19 through a hole corresponding to the feeding square pipe channel 17. During operation, when it is necessary to discharge the biogas residue after fermentation through the feeding square pipe channel 17, first open the sealing cover plate 19 to discharge the biogas liquid, and then open the sealing cover plate 19 outward and the inward-opening filter door plate 21 inward, so that a small forklift can pass through the feeding square pipe channel 17 and enter the fermentation tank body 1 to quickly clean the biogas residue, thus quickly cleaning the biogas residue. By only opening the sealing cover plate 19 and closing the inward-opening filter door plate 21, the biogas liquid can be discharged first to control the biogas liquid content in the fermentation tank body 1 and control the fermentation state. And the fermentation tank body 1 is placed on the ground, making installation and movement more convenient, solving the problem that the existing discharge of biogas residue and biogas liquid requires multiple positions and more complex structures, and the overall installation and disassembly are complex.

[0026] The fermentation unit includes a feed cover 2; the feed cover 2 is detachably and sealingly fixed to the upper end of the fermentation tank body 1; an air storage chamber 3 is sealingly fixed to the upper end opening of the fermentation tank body 1; a filter cage 16 is connected and fixed to the lower end of the air storage chamber 3; a gas guide pipe 4 is connected and fixed to the side of the air storage chamber 3; a first valve 5 is provided on the gas guide pipe 4; a detection pipe 6 is connected and fixed to the side of the gas guide pipe 4; a second valve 7 is provided on the detection pipe 6; an overflow pipe 8 and a biogas slurry return pipe 9 are provided at the upper end opening of the fermentation tank body 1; a suction pump 10 is provided at the lower end of the biogas slurry return pipe 9; the biogas generated in the fermentation tank body 1 first enters the air storage chamber 3 and then is led out through the gas guide pipe 4 and enters the gas storage tank; during operation, by opening a plurality of feed covers 2, a large amount of raw materials can be filled into the holes at the same time, and then the feed covers 2 are closed for sealed fermentation. After fermentation for a certain period of time, the second valve 7 is opened, and the biogas pressure and purity are tested by ignition through the detection pipe 6. Then, the first valve 5 is opened and the gas guide pipe 4 is externally connected to the biogas tank for storage. The highest liquid level of the biogas slurry in the fermentation tank body 1 is controlled by the overflow pipe 8, so that dry fermentation can be carried out normally in the fermentation tank body 1 to generate biogas.

[0027] A biogas residue and biogas slurry pool 11 is provided at the lower ends of the suction pump 10 and the slag discharge pipe 24; during operation, through the biogas residue and biogas slurry pool 11, the excess biogas residue and biogas slurry can be temporarily stored, and can be refluxed into the fermentation tank body 1 through the suction pump 10 to participate in fermentation, so as to facilitate the cyclic filling of raw materials for biogas production.

[0028] A slag discharge pipe 24 is connected and fixed to the lower end opening of the feed square pipe channel 17; a fourth valve 25 is provided on the slag discharge pipe 24; during operation, through the slag discharge pipe 24, the discharge of biogas residue can be controlled by switching the fourth valve 25 without opening the sealing cover plate 19, thus making the operation more convenient.

[0029] An air inlet hole 12 is provided on the side of the fermentation tank body 1; an air inlet pipe 13 is sealingly fixed in the air inlet hole 12; a blower 15 is connected and fixed to the end of the air inlet pipe 13; a third valve 14 is provided on the air inlet pipe 13; during operation, when discharging biogas residue, the third valve 14 and the blower 15 are opened, and the outside air enters the fermentation tank body 1 along the air inlet hole 12 and the air inlet pipe 13, so as to discharge the remaining biogas in the fermentation tank body 1. Then, ignition detection is carried out through the detection pipe 6. After determining safety, the biogas residue can be safely discharged and raw materials can be filled again to produce biogas; this solves the problem that the existing biogas generating device is not safe enough during slag discharge.

[0030] The inner-opening filter door panel 21 is evenly provided with filter holes 23. During operation, by evenly arranging the filter holes 23 on the inner-opening filter door panel 21, when dealing with different biogas fermentation raw materials, the inner-opening filter door panel 21 with filter holes 23 of different diameters can be replaced, so as to obtain a better effect of filtering biogas residues, making the control of the residual amount of biogas residues safer, and solving the problem that the existing biogas generating device cannot adjust the filter aperture according to different biogas fermentation raw materials.

[0031] With the above scheme, when the utility model is in use, through the feed square pipe channel 17, when it is necessary to discharge biogas residues after fermentation is completed, the sealing cover plate 19 and the inner-opening filter door panel 21 are opened, so that tools can pass through the feed square pipe channel 17 and enter the fermentation tank body 1, thus quickly cleaning the biogas residues. By only opening the sealing cover plate 19 and closing the inner-opening filter door panel 21, the biogas slurry can be discharged smoothly, and the biogas slurry content in the fermentation tank body 1 can be controlled to control the fermentation state. And the fermentation tank body 1 is placed on the ground, making installation and movement more convenient, solving the problem that the existing discharge of biogas residues and biogas slurry requires multiple positions and more complex structures, and the overall installation and disassembly are complex. By opening a plurality of feed covers 2, a large amount of raw materials can be filled into the holes simultaneously, and then the feed covers 2 are closed for sealed fermentation. After fermentation for a certain period of time, the second valve 7 is opened, and the biogas pressure and purity are tested by ignition through the detection pipe 6. Then, the first valve 5 and the gas guide pipe 4 are opened to store biogas externally through a biogas tank. The highest liquid level of the biogas slurry in the fermentation tank body 1 is controlled by the overflow pipe 8, so that dry fermentation can be carried out normally in the fermentation tank body 1 to generate biogas. Through the biogas residue and biogas slurry pool 11, the excess biogas residues and biogas slurry can be temporarily stored, and can be refluxed into the fermentation tank body 1 through the suction pump 10 to participate in fermentation, thus facilitating the cyclic filling of raw materials to generate biogas. Through the slag discharge pipe 24, the discharge of biogas residues can be controlled by switching the fourth valve 25 without opening the sealing cover plate 19, making the operation more convenient. When discharging biogas residues, the third valve 14 and the blower 15 are opened, and the outside air enters the fermentation tank body 1 along the air inlet hole 12 and the air inlet pipe 13, so as to discharge the remaining biogas in the fermentation tank body 1. Then, ignition detection is carried out through the detection pipe 6. After determining safety, the biogas residues can be safely discharged and raw materials can be filled again to generate biogas, solving the problem that the existing biogas generating device is not safe enough during slag discharge. By evenly arranging the filter holes 23 on the inner-opening filter door panel 21, when dealing with different biogas fermentation raw materials, the inner-opening filter door panel 21 with filter holes 23 of different diameters can be replaced, so as to obtain a better effect of filtering biogas residues, making the control of the residual amount of biogas residues safer, and solving the problem that the existing biogas generating device cannot adjust the filter aperture according to different biogas fermentation raw materials.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. Full dry fermentation process garage type biogas device, characterized by; The invention comprises a fermentation tank body (1); a fermentation unit is provided on the fermentation tank body (1); a feed square tube channel (17) is symmetrically grooved on the fermentation tank body (1); an inner opening filter door plate (21) is connected to the feed square tube channel (17); a second fastener (22) is inserted into a hole corresponding to the fermentation tank body (1) on the inner opening filter door plate (21); a hinge (18) is fixedly connected to the opening of the feed square tube channel (17); a sealing cover plate (19) is fixedly connected to the hinge (18); and a first fastener (20) is inserted into a hole corresponding to the feed square tube channel (17) on the sealing cover plate (19).

2. The full dry fermentation process garage type biogas device according to claim 1, characterized in that: The fermentation unit comprises a feed cover (2); the feed cover (2) is detachably sealed and fixedly connected to the upper end of the fermentation tank body (1); the upper end of the fermentation tank body (1) is sealed and fixedly connected to a gas storage chamber (3); the lower end of the gas storage chamber (3) is connected and fixedly connected to a filter cage (16); the side of the gas storage chamber (3) is connected and fixedly connected to an air guide pipe (4); a first valve (5) is provided on the air guide pipe (4); the side of the air guide pipe (4) is connected and fixedly connected to a detection pipe (6); a second valve (7) is provided on the detection pipe (6); the upper end of the fermentation tank body (1) is opened and provided with an overflow pipe (8) and a biogas slurry return pipe (9); the lower end of the biogas slurry return pipe (9) is provided with a suction pump (10); the biogas generated in the fermentation tank body (1) first enters the gas storage chamber (3), and then is discharged into the gas storage cabinet through the air guide pipe (4).

3. The full dry fermentation process garage type biogas device according to claim 2, characterized in that: A biogas residue and liquid pool (11) is provided at the lower ends of the suction pump (10) and the slag discharge pipe (24).

4. The full dry fermentation process garage type biogas device according to claim 3, characterized in that: The lower end opening of the feed square tube channel (17) is connected and fixedly connected to a slag discharge pipe (24); a fourth valve (25) is provided on the slag discharge pipe (24).

5. The full dry fermentation process garage type biogas device according to claim 4, characterized in that: An air inlet hole (12) is provided on the side of the fermentation tank body (1); an air inlet pipe (13) is sealed and fixedly connected inside the air inlet hole (12); the end of the air inlet pipe (13) is connected and fixedly connected to a blower (15); and a third valve (14) is provided on the air inlet pipe (13).

6. The full dry fermentation process garage type biogas device according to claim 5, characterized in that: The inner opening filter door plate (21) is evenly provided with filter holes (23).

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