Biogas slurry irrigation fine filtering system

Abstract

The utility model relates to the field of biogas slurry treatment, particularly discloses a refined filtration system for biogas slurry irrigation, and solves the technical problems that filtration is impure and an irrigation pipeline and a terminal irrigation emitter are easy to block in the current biogas slurry fertilization and irrigation process. Comprising a first height surface, a second height surface, a third height surface and a fourth height surface of which the heights are sequentially reduced, and the first height surface, the second height surface, the third height surface and the fourth height surface are respectively provided with a fermentation device, a first separation device, a second separation device and a liquid discharge device; the first separation device is provided with a liquid collecting tank and a residue collecting tank, a first filter screen is obliquely arranged on the liquid collecting tank, and the fermentation device is arranged above the first filter screen through a first pipeline; the second separation device comprises a separation wheel and a filter cylinder arranged on the outer side of the separation wheel in a sleeving mode, and the filter cylinder is located in the second separation box and communicates with the liquid collection tank; the liquid discharge device is communicated with the second separation box, so that fine separation of solid and liquid is realized under the action of gravity, and the filtering effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a biogas slurry treatment technical field, specifically, relate to a kind of biogas slurry irrigation refinement filtration system. BACKGROUND

[0002] As a kind of high-quality organic fertilizer, biogas slurry is rich in various nutrients, and has a significant effect on promoting crop growth. However, in practical application, especially in the farmers of Panxi area, two ways of direct manual irrigation and through artificial wetland treatment are mainly used to utilize biogas slurry.

[0003] Among them, most farmers tend to directly apply untreated biogas slurry to fruit trees or vegetable roots, and rarely use specially designed fertilization systems or equipment for more precise operation. This extensive management method, such as using a hose to irrigate randomly or adopting a flooding method, is not only not conducive to the healthy growth of crops, but also may cause resource waste. SUMMARY

[0004] The purpose of the present utility model is to provide a biogas slurry irrigation refinement filtration system, which solves the technical problem of impure filtration, easy clogging of irrigation pipelines and terminal waterers in the current biogas slurry fertilization and irrigation process.

[0005] The utility model provides a kind of biogas slurry irrigation refinement filtration system, comprising: first height surface, second height surface, third height surface and fourth height surface of height are sequentially lowered, first height surface, second height surface, third height surface and fourth height surface are respectively provided with fermentation device, first separating device, second separating device and drainage device;The first separating device is equipped with liquid collecting tank and residue collecting tank, and the first filter screen is inclinedly arranged on the liquid collecting tank;The fermentation device is located above the first filter screen by first pipeline;The second separating device includes a separating wheel and a filter cartridge sleeved outside the separating wheel, the filter cartridge is located in a second separating box, and the filter cartridge is in communication with the liquid collecting tank;The drainage device communicates with the second separating box.

[0006] According to one embodiment of the utility model, the drainage device includes a first drainage pipe and a second drainage pipe arranged at an angle, the first drainage pipe is connected to the second separating box, and the second drainage pipe is connected to a clean water source.

[0007] According to one embodiment of the utility model, the first drainage pipe and the second drainage pipe are connected into one infusion main pipe, and the infusion main pipe is connected to multiple infusion branch pipes.

[0008] According to one embodiment of the utility model, the filter cartridge is in communication with the liquid collecting tank through a connecting pipe, and under the condition that the separating wheel is stationary, the blades of the separating wheel and the connecting pipe are arranged at an angle.

[0009] According to one embodiment of the utility model, the second separation tank is provided with multiple layers of second filter screens in the vertical direction.

[0010] According to one embodiment of the utility model, the first filter screen is provided with multiple layers and is arranged in the vertical direction, and the bottom of the first filter screen is arranged at the top of the slag collecting groove.

[0011] According to one embodiment of the utility model, the bottom of the slag collecting groove is communicated with the liquid collecting groove through a third filter screen.

[0012] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0013] (1) The fine filtration system for biogas slurry irrigation provided by the utility model is provided with a fermentation device, a first separation device, a second separation device and a liquid discharge device arranged on four height surfaces with decreasing heights in sequence, and realizes the whole process from fermentation to separation and then to discharge through the gravity of the biogas slurry, effectively improving the quality and utilization rate of the biogas slurry.

[0014] (2) The arrangement of the liquid collecting groove and the slag collecting groove facilitates the preliminary separation of the biogas slurry and the dregs, the angle arrangement of the first filter screen can effectively block the large-particle impurities from entering the liquid collecting groove, and the large-particle impurities are automatically dropped into the slag collecting groove through the gravity, and the fermentation device further promotes the biological treatment of the biogas slurry and improves the stability of the biogas slurry.

[0015] (3) The separation wheel and the filter cartridge in the second separation device of the utility model are used in cooperation, the filter cartridge is communicated with the liquid collecting groove through a connecting pipe, the connecting pipe and the blade angle are arranged, the separation wheel blade is driven to rotate through the gravity of the biogas slurry, so that the liquid is discharged from the filter cartridge, and the solid is left in the filter cartridge, realizing further solid-liquid separation.

[0016] (4) The angle arrangement design of the first liquid discharge pipe and the second liquid discharge pipe of the liquid discharge device of the utility model increases the mixing effect of the clean water and the biogas slurry and further improves the filtration effect.

[0017] (5) The arrangement of the multiple layers of filter screens of the utility model improves the separation effect and further facilitates the separation and cleaning of the sundries.

[0018] (6) The utility model has reasonable design, simple structure and good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0020] Figure 1 The structural schematic diagram of the biogas slurry irrigation fine filtration system provided in the present application embodiment 1 is shown in the figure.

[0021] Figure 2 The structural schematic diagram of the biogas slurry irrigation fine filtration system provided in the present application embodiment 2 is shown in the figure.

[0022] Icon:

[0023] 100, fermentation device;

[0024] 210, first filter screen; 220, liquid collecting tank; 230, residue collecting tank; 240, third filter screen;

[0025] 310, second filter screen; 320, second separation box; 330, filter cartridge; 340, separation wheel;

[0026] 410, first liquid discharge pipe; 420, second liquid discharge pipe; 421, liquid delivery branch pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Embodiment 1

[0029] The present application embodiment provides a biogas slurry irrigation fine filtration system, which realizes fine separation of solid and liquid by gravity, and guarantees the filtration effect.

[0030] Please refer to Figure 1 The present application embodiment provides a biogas slurry irrigation fine filtration system,

[0031] The fermentation device 100 comprises a first height plane, a second height plane, a third height plane and a fourth height plane with decreasing heights in sequence, wherein the first height plane, the second height plane, the third height plane and the fourth height plane are respectively provided with a fermentation device 100, a first separation device, a second separation device and a drainage device; the first separation device is provided with a liquid collecting tank 220 and a slag collecting tank 230, and a first filter screen 210 is obliquely provided on the liquid collecting tank 220; the fermentation device 100 is arranged above the first filter screen 210 through a first pipe; the second separation device comprises a separation wheel 340 and a filter cartridge 330 sleeved on the outside of the separation wheel 340, the filter cartridge 330 is located in the second separation box 320, and the filter cartridge 330 is connected to the liquid collecting tank 220; the drainage device is connected to the second separation box 320, and the fermentation device 100 is located on the first height plane at the highest point, for promoting the biodegradation process of organic matter in the biogas slurry. The first separation device is provided on the second height plane and comprises a liquid collecting tank 220 and a slag collecting tank 230. A first filter screen 210 is tilted above the sump 220 to intercept large particles of impurities and allow them to fall naturally into the slag trough 230 below. The fermented biogas flows through the first filter screen 210 and into the sump 220. The second separation device is located at the third elevation and includes a rotating separation wheel 340 and a filter cartridge 330 wrapped around it. When the biogas flows into the filter cartridge 330, gravity causes the separation wheel 340 to rotate, thereby more effectively separating the solid residue from the liquid portion. The filter cartridge 330 is connected to the sump 220 to ensure that the further purified liquid can be transferred smoothly. The drainage device is located at the lowest point of the fourth elevation and consists of two drainage pipes at different angles. One is directly connected to the second separation box 320 to discharge the treated biogas, and the other is connected to the clean water source. The two eventually merge to form a main infusion pipe, which is then distributed to multiple infusion branch pipes 421 for irrigation.

[0032] During the filtration process of this embodiment, the first filter screen 210 filters large particles of impurities. The first filter screen 210 is set at an angle, with the bottom end facing the slag collecting tank 230. The large particles of impurities can slide into the slag collecting tank 230 through gravity, and the biogas liquid flowing down from above has a cleaning effect, which helps the impurities to slide down.

[0033] In this embodiment, the drainage device includes a first drainage pipe 410 and a second drainage pipe 420 arranged at an angle. The first drainage pipe 410 is connected to the second separation box 320, and the second drainage pipe 420 is connected to a clean water source.

[0034] In this embodiment, the first liquid discharge pipe 410 and the second liquid discharge pipe 420 are combined into a main liquid delivery pipe to irrigate the position to be irrigated.

[0035] In the embodiment, the filter cartridge 330 is communicated with the liquid collecting tank 220 through a connecting pipe, and under the condition that the separation wheel 340 is static, the angle between the blade of the separation wheel 340 and the connecting pipe is set, when the biogas slurry flows down, the blade is driven to rotate by the gravity, the solid is left in the filter cartridge 330, and the liquid flows out of the filter cartridge 330 and is discharged through the second separation tank 320.

[0036] In the embodiment, the second separation tank 320 is provided with a plurality of second filter screens 310 in the vertical direction, so as to further realize the filtering effect, and the mesh size of each filter screen is gradually reduced in the vertical direction.

[0037] In the embodiment, the first filter screen 210 is provided with a plurality of layers and is arranged in the vertical direction, and the bottom of the first filter screen 210 is arranged at the top of the residue collecting tank 230, so that the upper isolated large-particle material can fall under the action of gravity.

[0038] In the embodiment, the bottom of the residue collecting tank 230 is communicated with the liquid collecting tank 220 through a third filter screen 240, so that part of the biogas slurry flows into the liquid collecting tank 220, the bottom of the residue collecting tank 230 is arranged to be inclined, and the lowest point is close to the liquid collecting tank 220.

[0039] The use process of the biogas slurry irrigation fine filtration system in the embodiment 1 will be described in detail as follows:

[0040] The biogas slurry enters the fermentation device 100, when the liquid level rises, the biogas slurry passes through the first pipeline and enters the first filter screen 210, the first filter screen 210 isolates the solid, which falls into the residue collecting tank 230 under the action of gravity, part of the biogas slurry in the residue collecting tank 230 flows into the liquid collecting tank 220 through the third filter screen 240, the filter cartridge 330 is communicated with the liquid collecting tank 220 through the connecting pipe, the angle between the connecting pipe and the blade is set, the blade of the separation wheel 340 is driven to rotate by the gravity of the biogas slurry, so that the liquid is discharged from the filter cartridge 330, the solid is left in the filter cartridge 330, the further solid-liquid separation is realized, the angle between the first liquid discharge pipe 410 and the second liquid discharge pipe 420 is set, the mixing effect of the clean water and the biogas slurry is increased, the mixed irrigation liquid is input into the to-be-irrigated area, and irrigation is performed.

[0041] Embodiment 2

[0042] The biogas slurry irrigation fine filtration system in the embodiment can realize fine separation of solid and liquid through the gravity, can be directly irrigated underground under the condition of ensuring the filtering effect, and further ensures the filtering effect.

[0043] Please refer to Figure 2The biogas slurry irrigation fine filtration system provided by the embodiment 2 of the utility model has only the difference from the embodiment 1 that in the embodiment, the infusion main pipe is connected with a plurality of infusion branch pipes 421, a plurality of infusion holes are arranged on the plurality of infusion branch pipes 421, and the infusion branch pipes 421 are installed underground to realize direct irrigation of the soil.

[0044] The embodiment of the utility model has at least the following advantages:

[0045] (1) The biogas slurry irrigation fine filtration system provided by the utility model realizes the whole process from fermentation to separation and then to discharge through the gravity of the biogas slurry, and effectively improves the quality and utilization rate of the biogas slurry.

[0046] (2) The arrangement of the liquid collecting groove and the residue collecting groove facilitates the preliminary separation of the biogas slurry and the residue, the angle arrangement of the first filter screen can effectively block the large-particle impurities from entering the liquid collecting groove, and the large-particle impurities are automatically dropped into the residue collecting groove through the gravity, and the fermentation device further promotes the biological treatment of the biogas slurry and improves the stability of the biogas slurry.

[0047] (3) The separation wheel and the filter cartridge in the second separation device are used in cooperation, the filter cartridge is communicated with the liquid collecting groove through the connecting pipe, the connecting pipe and the blade angle are arranged, the separation wheel blade is driven to rotate through the gravity of the biogas slurry, so that the liquid is discharged from the filter cartridge, the solid is retained in the filter cartridge, and further solid-liquid separation is realized.

[0048] (4) The angle arrangement design of the first discharge pipe and the second discharge pipe of the liquid discharge device increases the mixing effect of the clean water and the biogas slurry and further improves the filtration effect.

[0049] (5) The arrangement of the multi-layer filter screen improves the separation effect and further facilitates the separation and cleaning of the sundries.

[0050] (6) The utility model has the advantages of reasonable design, simple structure and good practicability.

[0051] The above is only the preferred embodiment of the utility model and is not used for limiting the utility model, and the utility model can have various changes and variations for the person skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A biogas slurry irrigation fine filtration system, characterized in that: include: A first height plane, a second height plane, a third height plane and a fourth height plane with decreasing heights, wherein the first height plane, the second height plane, the third height plane and the fourth height plane are respectively provided with a fermentation device, a first separation device, a second separation device and a liquid drainage device; The first separation device is provided with a liquid collecting tank and a slag collecting tank, and a first filter screen is obliquely provided on the liquid collecting tank; The fermentation device is arranged above the first filter through a first pipe; The second separation device includes a separation wheel and a filter cartridge sleeved on the outside of the separation wheel, the filter cartridge is located in the second separation box, and the filter cartridge is connected to the liquid collecting tank; The liquid draining device is communicated with the second separation box.

2. The biogas slurry irrigation fine filtration system according to claim 1, characterized in that: The drainage device includes a first drainage pipe and a second drainage pipe arranged at an angle, the first drainage pipe is connected to the second separation box, and the second drainage pipe is connected to a clean water source.

3. The biogas slurry irrigation fine filtration system according to claim 2, characterized in that: The first drainage pipe and the second drainage pipe are combined into a main infusion pipe, and the main infusion pipe is connected to a plurality of branch infusion pipes.

4. The biogas slurry irrigation fine filtration system according to any one of claims 1 to 3, characterized in that: The filter cartridge is connected to the liquid collecting tank through a connecting pipe. When the separation wheel is stationary, the blades of the separation wheel and the connecting pipe are arranged at an angle.

5. The biogas slurry irrigation fine filtration system according to any one of claims 1 to 3, characterized in that: The second separation box is provided with multiple layers of second filter screens at intervals along the vertical direction.

6. The biogas slurry irrigation fine filtration system according to any one of claims 1 to 3, characterized in that: The first filter screen is provided with multiple layers, which are spaced apart in the vertical direction, and the bottom of the first filter screen is arranged on the top of the slag collecting tank.

7. The biogas slurry irrigation fine filtration system according to any one of claims 1 to 3, characterized in that: The bottom of the slag collecting tank is communicated with the liquid collecting tank through a third filter screen.

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