CN217516738U - Discharging device for anaerobic fermentation system and anaerobic fermentation system - Google Patents
Discharging device for anaerobic fermentation system and anaerobic fermentation system Download PDFInfo
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- CN217516738U CN217516738U CN202221702563.1U CN202221702563U CN217516738U CN 217516738 U CN217516738 U CN 217516738U CN 202221702563 U CN202221702563 U CN 202221702563U CN 217516738 U CN217516738 U CN 217516738U
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Abstract
The utility model discloses a discharging device and anaerobic fermentation system for anaerobic fermentation system, wherein, the device includes: the flow limiting plate is arranged on the inner side of the side wall of the shell so as to form a flow guide groove between the side wall of the shell and the flow limiting plate; the microorganism retention device and the overflow weir groove are arranged on the inner side of the flow limiting plate, so that water flow can sequentially flow through the flow guide groove and the microorganism retention device and flow into the overflow weir groove, and then is discharged out of the anaerobic enzyme generating tank through the discharge guide and discharge pipe; the inclined plate precipitator is arranged below the microorganism retention device and is used for receiving the activated sludge intercepted and settled in the water flow by the microorganism retention device; the biogas collecting barrel is communicated with the top of the shell and used for collecting biogas generated in the discharging process. The device can effectively prevent the loss of the active sludge in the anaerobic fermentation tank in the organic garbage biochemical treatment anaerobic fermentation process, so that the anaerobic fermentation tank can maintain higher anaerobic active sludge concentration, greatly improve the sludge age of the anaerobic active sludge and improve the treatment effect of the anaerobic fermentation process.
Description
Technical Field
The utility model relates to an organic refuse treatment technical field, concretely relates to anaerobic fermentation system's discharging device and anaerobic fermentation system.
Background
Organic wastes such as kitchen wastes, livestock and poultry manure and the like are rich in biological organic matters, and the organic wastes are treated by adopting an anaerobic biogas production mode at home and abroad so as to realize solid waste treatment and simultaneously generate biomass energy.
In the anaerobic fermentation process, the anaerobic fermentation system is generally accelerated to start by adding flocculent or granular activated sludge (containing anaerobic microorganisms), and after the anaerobic fermentation system stably operates, the degradation of fermentation materials in the system is completed by continuous operation of feeding and discharging of the system. However, the water flow effect of the system discharge often brings a large amount of anaerobic activated sludge out of the anaerobic fermentation system, so that the loss of anaerobic microorganisms is caused, the treatment capacity of the anaerobic fermentation system is further reduced, and meanwhile, the problems that the quality of effluent water is poor, the treatment pressure in the subsequent links is increased and the like are caused.
At present, the prior art generally adopts a sludge backflow mode to maintain the concentration of activated sludge in an anaerobic fermentation system, namely, sludge after secondary sedimentation flows back to an anaerobic tank. However, this method causes continuous mutation of the living environment of the anaerobic microorganisms, resulting in death of a large number of microorganisms; in addition, the culture of the activated sludge needs a long time, the excessive inactive sludge in a short period enters the anaerobic fermentation system again, and the excessive impurities occupy the space of the anaerobic fermentation system, so that the stability and recovery of the treatment capacity of the anaerobic fermentation system are greatly impacted.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a discharging device for anaerobic fermentation system, this discharging device adopts the physics separation mode, a large amount of problems that run off along with anaerobic fermentation system ejection of compact rivers are taken care of to effective separation anaerobism activated sludge, keep the high sludge concentration in the anaerobic fermentation system simultaneously, guarantee anaerobic fermentation system's high anaerobic fermentation efficiency, high marsh gas output rate and play water quality, this a discharging device for anaerobic fermentation system includes the casing, the current-limiting plate, the microorganism detains the ware, the overflow weir groove, inclined plate precipitator and marsh gas collecting vessel, wherein:
the flow limiting plate is arranged on the inner side of the shell side wall so as to form a flow guide groove between the shell side wall and the flow limiting plate;
the microorganism blocker and the overflow weir notch are arranged on the inner side of the flow limiting plate, so that water flow entering the shell from the anaerobic enzyme generating tank can sequentially flow through the diversion trench and the microorganism blocker and flow into the overflow weir notch, and then is discharged to the outside of the anaerobic enzyme generating tank through a discharge diversion pipe arranged at the bottom of the overflow weir notch;
the inclined plate precipitator is arranged below the microorganism retention device and is used for receiving the activated sludge intercepted and settled by the microorganism retention device in water flow;
the biogas collecting barrel is communicated with the top of the shell and is used for collecting biogas generated in the discharging process.
In specific implementation, the microorganism retention device comprises two groups of flow blocking plates, and the two groups of flow blocking plates are arranged in an opposite and crossed manner with gaps to form a circuitous flow passing seam.
In specific implementation, the spoiler is the back taper spoiler, the conical crest contained angle of back taper spoiler is 45 to 50.
In specific implementation, the inclined planes on two sides of the cone top of the inverted cone-shaped spoiler are both rectangular, and the widths of the inclined planes on two sides of the cone top are asymmetric.
In a specific implementation, the width of the overflowing slit is 175 mm to 350 mm.
In specific implementation, the discharging device for the anaerobic fermentation system comprises two microorganism retention devices, the overflow weir trough is arranged in the center of the inside of the shell, and the two microorganism retention devices are symmetrically arranged on two sides of the overflow weir trough.
In specific implementation, the inclined plate precipitator comprises a plurality of precipitation inclined plates, the inclination angle of each precipitation inclined plate is 50-70 degrees, and the distance between every two adjacent precipitation inclined plates is 300-400 millimeters.
In specific implementation, a circular water tunnel is formed at the bottom of the overflow weir trough to be communicated with the discharge guide pipe, and the aperture of the circular water tunnel is 200-250 mm.
The utility model also provides an anaerobic fermentation system, anaerobic fermentation system include the anaerobism zymogen jar and be used for anaerobic fermentation system's discharging device.
In specific implementation, the discharging device for the anaerobic fermentation system is arranged at the top of the inner side of the side wall of the anaerobic enzyme generating tank, the biogas collecting barrel of the discharging device for the anaerobic fermentation system extends out of the top cover of the anaerobic enzyme generating tank, and the biogas collecting barrel is communicated with the top of the anaerobic enzyme generating tank through a biogas backflow pipe so as to return the collected biogas to the anaerobic enzyme generating tank.
In the concrete implementation, the anaerobic fermentation system still includes the sediment mud guide plate, sediment mud guide plate set up in a discharging device bottom outside for the anaerobic fermentation system, the top with the lateral wall of anaerobic fermentation jar is connected, just sediment mud guide plate with 40 to 60 contained angles have between the lateral wall, in order to by an active particle that the inclined plate precipitator that is used for the discharging device of anaerobic fermentation system accepts flows back inside the anaerobic fermentation jar.
The utility model provides a discharging device for anaerobic fermentation system has following beneficial effect: this discharging device effectively holds back the loss of anaerobic sludge through inclined plate precipitator, microorganism detain the ware, can effectively strengthen anaerobic fermentation system biomass degradation ability on the one hand, and this device of on the other hand adopts the physical separation method, need not to add the medicament, and separation effect is good, wholly improves anaerobic fermentation system effluent quality of water, can have the running cost that reduces follow-up sewage treatment. Meanwhile, the discharging device can greatly maintain anaerobic activated sludge with higher concentration in the system, thereby greatly reducing the sludge reflux amount and saving energy consumption. In addition, the discharging device is simple in structure, and has the advantages of low maintenance cost and long service life due to the fact that no mechanical transmission part is arranged inside the discharging device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other implementation drawings can be derived from the drawings provided without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 is a schematic view showing an internal structure of an anaerobic fermentation system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a discharging device for an anaerobic fermentation system according to an embodiment of the present invention;
FIG. 3 is a top view of a discharge apparatus for an anaerobic fermentation system according to one embodiment of the present invention;
fig. 4 is a schematic structural view of an overflow weir trough according to an embodiment of the present invention.
Description of reference numerals:
10. a fermentation tank; 11. a biogas collection barrel; 12. a biogas return pipe; 13. a housing; 14. an overflow weir trough; 15. a microbial retention device; 16. a circular water tunnel; 17, flowing through the seam; 18. a flow limiting plate 19 and the side wall of the anaerobic fermentation tank; 20. a discharging guide pipe; 21. an inclined plate precipitator; 22. a precipitated sludge deflector; 23. and a diversion trench.
The structures, the proportions, the sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention has no technical essence, and any modifications of the structures, the changes of the proportion relation, or the adjustment of the sizes, should still fall within the scope covered by the technical contents disclosed in the present specification without affecting the functions and the achievable purposes of the present invention.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by ordinary engineering technicians in the field without creative work belong to the protection scope of the present invention. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a discharging device for anaerobic fermentation system, this discharging device adopts the physical separation mode, a large amount of problems that run off along with anaerobic fermentation system ejection of compact rivers are used for effective separation anaerobism activated sludge, keep the high sludge concentration in the anaerobic fermentation system simultaneously, guarantee anaerobic fermentation system's high anaerobic fermentation efficiency, high marsh gas output rate and play water quality, this a discharging device for anaerobic fermentation system includes casing 13, current-limiting plate 18, microorganism detains ware 15, overflow weir groove 14, inclined plate precipitator 21 and biogas collection bucket 11, wherein:
the restrictor plate 18 is disposed inside the sidewall of the housing 13 to form a guiding groove 23 between the sidewall of the housing 13 and the restrictor plate 18;
the microorganism blocker 15 and the overflow weir trough 14 are both arranged on the inner side of the restrictor plate 18, so that the water flow entering the interior of the housing 13 from the anaerobic enzyme-generating tank 10 can sequentially flow through the diversion trench 23 and the microorganism blocker 15, and flow into the overflow weir trough 14, and then is discharged to the exterior of the anaerobic enzyme-generating tank 10 through a discharge drainage pipe 20 arranged at the bottom of the overflow weir trough 14;
the inclined plate precipitator 21 is arranged below the microorganism retention device 15 and is used for receiving the activated sludge intercepted and settled by the microorganism retention device 15 in water flow;
the biogas collecting barrel 11 is communicated with the top of the shell 13 and is used for collecting biogas generated in the discharging process.
The working principle of the discharging device for the anaerobic fermentation system is as follows: the device is arranged in the anaerobic enzyme-generating tank 10, the discharged water flow of the anaerobic enzyme-generating tank 10 can flow into a diversion trench 23 in the shell 13 of the discharging device, and then the water flow flows upwards under the water pressure to a microorganism blocker 15, the microorganism blocker 15 can block most of activated sludge, so that the sludge sinks to an inclined plate precipitator 21 at the lower part of the shell 13 and is finally discharged to the outside of the shell 13 from the bottom of the shell 13, namely returns to the inside of the anaerobic enzyme-generating tank 10; meanwhile, the discharged water flows upward to the overflow trough after the activated sludge is intercepted, and then flows out through the discharging guide and discharge pipe 20.
In particular embodiments, the microbial retention device 15 can be provided in a variety of embodiments. For example, as shown in fig. 1 and fig. 2, in order to effectively retain activated sludge, the microorganism retention device 15 may include two sets of flow blocking plates, which are arranged in a manner of crossing with each other with a gap therebetween to form a circuitous flow passing slit 17. The two sets of spoilers can avoid the direct upwelling of water flow and slow down the flow velocity, thereby effectively intercepting activated sludge.
In specific implementation, the specific structure of the spoiler may have various embodiments when being arranged, for example, as shown in fig. 1 and fig. 2, in order to further improve the sludge retention effect of the spoiler, the spoiler may be an inverted cone-shaped spoiler, and the included angle of the cone top of the inverted cone-shaped spoiler may be 45 ° to 50 °. Furthermore, the inclined planes on two sides of the cone top of the inverted cone-shaped spoiler are both rectangular, and the widths of the inclined planes on two sides of the cone top are asymmetric. The width ratio may be 4: 3, the width of the connecting end is 3, and the width of the outer end is 4.
In particular embodiments, the width of the flow gaps 17 can be varied. For example, the width of the flow gap 17 may be 175 mm to 350 mm.
The design of the overflowing seam 17 in the embodiment can lead the microorganism blocker 15 to effectively block microorganisms, so that most of activated sludge is trapped, the concentration of the sludge in the rising water is gradually reduced and suspended matters are reduced after each layer of blocking.
In practical implementation, the microorganism stoppers 15 and the overflow weir troughs 14 may be arranged in various embodiments, for example, as shown in fig. 1, fig. 2 and fig. 3, the discharging device for the anaerobic fermentation system may include two microorganism stoppers 15, the overflow weir trough 14 is arranged at the center inside the shell 13, and the two microorganism stoppers 15 are symmetrically arranged at both sides of the overflow weir trough 14. The outer sides of the two microorganism detainers 15 are respectively provided with a spoiler and a diversion trench 23, and water flow can flow in from the two sides of the shell 13.
In specific implementation, the inclined plate precipitator 21 can be arranged in various embodiments. For example, as shown in fig. 1 and 2, in order to improve the settling effect of the activated sludge, the inclined plate precipitator 21 may include a plurality of inclined plates, the inclined angle of each inclined plate may be 50 ° to 70 °, and the distance between two adjacent inclined plates may be 300 mm to 400 mm.
In particular embodiments, the overflow weir trough 14 may be configured to direct the discharge flow of water in a variety of embodiments. For example, as shown in fig. 2, a circular water tunnel 16 may be opened at the bottom of the overflow weir trough 14 to communicate with the discharge pipe 20, and the aperture of the circular water tunnel 16 may be 200 mm to 250 mm.
In specific implementations, the specific shape of the weir trough 14 may be varied in its configuration. For example, as shown in fig. 4, the weir trough 14 may be tapered, wide at the top and narrow at the bottom, and the bottom is connected to the discharge conduit 20 through a circular water tunnel 16. Furthermore, a plurality of sawtooth-shaped notches can be arranged around the top, so that water flow can uniformly flow into the groove conveniently.
As shown in the figures 1 and 2, the utility model also provides an anaerobic fermentation system, which comprises an anaerobic fermentation tank 10 and a discharging device for the anaerobic fermentation system.
In specific implementation, as shown in fig. 1 and 2, the discharging device for the anaerobic fermentation system may be disposed at the top of the inner side of the side wall of the anaerobic enzyme fermentation tank 10, the biogas collecting barrel 11 protrudes out of the top cover of the anaerobic enzyme fermentation tank 10, and the biogas collecting barrel 11 is communicated with the top of the anaerobic enzyme fermentation tank 10 through a biogas backflow pipe to backflow the collected biogas to the anaerobic enzyme fermentation tank 10. Biogas is enriched, overflows from the water surface and is collected into the top biogas collecting barrel 11, the biogas finally enters the top of the anaerobic fermentation tank through a biogas return pipe, and the relatively closed space can effectively prevent the relatively clear water of the discharging device from being polluted by the sludge in the fermentation tank again.
In specific implementation, the discharging device and the anaerobic hair enzyme tank can share part of the shell 13, so that the structure can be simplified, and the overall stability of the system can be effectively improved. As shown in fig. 2 and 3, two flow-limiting plates 18 can be disposed in the discharging device, one flow-limiting plate 18 in the discharging device and the discharging device housing 13 form a diversion trench 23, and the other flow-limiting plate 18 in the discharging device and the housing 13 shared by the anaerobic fermentation tank and the discharging device form another diversion trench 23.
In specific implementation, as shown in fig. 1 and fig. 2, the anaerobic fermentation system further includes a precipitated sludge guide plate 22, the precipitated sludge guide plate 22 is disposed at the outer side of the bottom of the discharging device for the anaerobic fermentation system, the top end of the precipitated sludge guide plate is connected with the side wall of the anaerobic fermentation tank 10, and an included angle of 40 ° to 60 ° is formed between the precipitated sludge guide plate 22 and the side wall, so that the active particles received by the inclined plate precipitator 21 are guided back to the inside of the anaerobic fermentation tank 10.
The utility model provides a discharging device for anaerobic fermentation system has following beneficial effect: this discharging device effectively holds back the loss of anaerobic sludge through inclined plate precipitator 21, microorganism detain ware 15, can effectively strengthen anaerobic fermentation system biomass degradation ability on the one hand, and this device of on the other hand adopts the physical separation method, need not to add the medicament, and separation effect is good, wholly improves anaerobic fermentation system and goes out water quality of water, can have the running cost that reduces follow-up sewage treatment. Meanwhile, the discharging device can greatly maintain anaerobic activated sludge with higher concentration in the system, thereby greatly reducing the sludge reflux amount and saving energy consumption. In addition, the discharging device is simple in structure, and has the advantages of low maintenance cost and long service life due to the fact that no mechanical transmission part is arranged inside the discharging device.
Although the invention has been described in detail with reference to the general description and the specific embodiments, it is not intended to limit the scope of the invention, and those skilled in the art can make modifications or improvements on the basis of the present invention, and therefore all equivalent structural changes made by the contents of the specification and the drawings are included in the scope of the invention.
Claims (11)
1. A discharging device for an anaerobic fermentation system, which comprises a shell (13), a flow-limiting plate (18), a microorganism retention device (15), an overflow weir trough (14), an inclined plate precipitator (21) and a methane collecting barrel (11), wherein:
the flow restriction plate (18) is arranged on the inner side of the side wall of the shell (13) so as to form a flow guide groove (23) between the side wall of the shell (13) and the flow restriction plate (18);
the microorganism retention device (15) and the overflow weir notch (14) are arranged on the inner side of the flow limiting plate (18), so that water flow entering the shell (13) from the anaerobic enzyme generating tank (10) can sequentially flow through the diversion trench (23) and the microorganism retention device (15) and flow into the overflow weir notch (14), and then is discharged to the outside of the anaerobic enzyme generating tank (10) through a discharge guide pipe (20) arranged at the bottom of the overflow weir notch (14);
the inclined plate precipitator (21) is arranged below the microorganism blocker (15) and is used for receiving the activated sludge intercepted and settled by the microorganism blocker (15) in water flow;
the biogas collecting barrel (11) is communicated with the top of the shell (13) and is used for collecting biogas generated in the discharging process.
2. The discharging device for anaerobic fermentation system according to claim 1, wherein the microorganism retention device (15) comprises two sets of flow blocking plates, which are arranged crosswise with a gap therebetween to form a circuitous flow passing slit (17).
3. The discharging device for the anaerobic fermentation system according to claim 2, wherein the flow blocking plate is an inverted cone-shaped flow blocking plate, and the included angle of the cone top of the inverted cone-shaped flow blocking plate is 45 ° to 50 °.
4. The discharging device for the anaerobic fermentation system as claimed in claim 3, wherein the inclined planes at both sides of the conical top of the inverted conical spoiler are both rectangular, and the widths of the inclined planes at both sides of the conical top are asymmetric.
5. The tapping device for an anaerobic fermentation system according to claim 2, characterized in that the width of the overflow slot (17) is 175-350 mm.
6. The discharging device for the anaerobic fermentation system according to claim 1, wherein the discharging device for the anaerobic fermentation system comprises two microorganism stoppers (15), the overflow weir trough (14) is arranged at the center inside the shell (13), and the two microorganism stoppers (15) are symmetrically arranged at both sides of the overflow weir trough (14).
7. The discharging device for the anaerobic fermentation system according to claim 1, wherein the inclined plate precipitator (21) comprises a plurality of inclined precipitation plates, the inclined angle of the inclined precipitation plates is 50-70 degrees, and the distance between two adjacent inclined precipitation plates is 300-400 mm.
8. The discharging device for anaerobic fermentation system according to claim 1, wherein the bottom of the overflow weir trough (14) is opened with a circular water hole (16) to communicate with the discharging and draining pipe (20), and the diameter of the circular water hole (16) is 200 mm to 250 mm.
9. An anaerobic fermentation system, characterized in that the anaerobic fermentation system comprises an anaerobic enzyme tank (10) and a discharge device for an anaerobic fermentation system according to any one of claims 1 to 8.
10. The anaerobic fermentation system of claim 9, wherein the discharging device for the anaerobic fermentation system is arranged at the top of the inner side of the side wall of the anaerobic enzyme tank (10), the biogas collecting barrel (11) of the discharging device for the anaerobic fermentation system extends out of the top cover of the anaerobic enzyme tank (10), and the biogas collecting barrel (11) is communicated with the top of the anaerobic enzyme tank (10) through a biogas backflow pipe (12) to return the collected biogas to the anaerobic enzyme tank (10).
11. The anaerobic fermentation system of claim 9, further comprising a precipitated sludge guide plate (22), wherein the precipitated sludge guide plate (22) is arranged outside the bottom of the discharging device for the anaerobic fermentation system, the top end of the precipitated sludge guide plate is connected with the side wall of the anaerobic fermentation tank (10), and an included angle of 40-60 degrees is formed between the precipitated sludge guide plate (22) and the side wall, so that active particles received by the inclined plate precipitator (21) of the discharging device for the anaerobic fermentation system are guided back to the inside of the anaerobic fermentation tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221702563.1U CN217516738U (en) | 2022-07-04 | 2022-07-04 | Discharging device for anaerobic fermentation system and anaerobic fermentation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221702563.1U CN217516738U (en) | 2022-07-04 | 2022-07-04 | Discharging device for anaerobic fermentation system and anaerobic fermentation system |
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| Publication Number | Publication Date |
|---|---|
| CN217516738U true CN217516738U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221702563.1U Active CN217516738U (en) | 2022-07-04 | 2022-07-04 | Discharging device for anaerobic fermentation system and anaerobic fermentation system |
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| CN (1) | CN217516738U (en) |
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- 2022-07-04 CN CN202221702563.1U patent/CN217516738U/en active Active
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Address after: 100120 1001-5, unit 1, 10 / F, building 36, Deshengmenwai street, Xicheng District, Beijing (Desheng Park) Patentee after: Zhongcheng Institute (Beijing) Environmental Technology Co.,Ltd. Address before: 100120 1001-5, unit 1, 10 / F, building 36, Deshengmenwai street, Xicheng District, Beijing (Desheng Park) Patentee before: Zhongchengyuan (Beijing) Environmental Technology Co.,Ltd. |
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