CN217578438U - Horizontal high-solid anaerobic digestion reactor - Google Patents
Horizontal high-solid anaerobic digestion reactor Download PDFInfo
- Publication number
- CN217578438U CN217578438U CN202221240686.8U CN202221240686U CN217578438U CN 217578438 U CN217578438 U CN 217578438U CN 202221240686 U CN202221240686 U CN 202221240686U CN 217578438 U CN217578438 U CN 217578438U
- Authority
- CN
- China
- Prior art keywords
- anaerobic digestion
- digestion reactor
- reactor
- stirring
- horizontal high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
Abstract
本实用新型属于有机废弃物资源化设备技术领域，涉及一种卧式高固厌氧消化反应器，由进料系统、厌氧消化反应器主体、排泥系统和沼气收集系统组成；其中，所述进料系统包括进料调配仓、进料斗盖、筛网、进料管和污泥进料泵；所述厌氧消化反应器主体为卧式立方体，还包括螺旋搅拌轴、搅拌桨叶、pH计、氧化还原电位计；所述排泥系统包括出料管与出料泵，所述沼气收集系统位于厌氧消化反应器主体上部。本实用新型公开的卧式厌氧消化反应器，容积利用率高，提高传质传热率。卧式反应器具有推流作用，能够显著减少死区，增强系统内基质的流动特性，有效避免立式反应器存在的局部酸化的问题，能够低成本、快速高效地实现有机废弃物的资源化利用。
The utility model belongs to the technical field of organic waste recycling equipment, and relates to a horizontal high-solid anaerobic digestion reactor, which is composed of a feeding system, an anaerobic digestion reactor main body, a sludge discharge system and a biogas collection system; The feeding system includes a feeding mixing bin, a feeding hopper cover, a screen, a feeding pipe and a sludge feeding pump; the main body of the anaerobic digestion reactor is a horizontal cube, and also includes a screw stirring shaft, a stirring blade , pH meter, redox potentiometer; the sludge discharge system includes a discharge pipe and a discharge pump, and the biogas collection system is located on the upper part of the main body of the anaerobic digestion reactor. The horizontal anaerobic digestion reactor disclosed by the utility model has high volume utilization rate and improves the mass transfer and heat transfer rate. The horizontal reactor has a push-flow effect, which can significantly reduce the dead zone, enhance the flow characteristics of the matrix in the system, effectively avoid the problem of local acidification existing in the vertical reactor, and realize the resource utilization of organic waste at low cost, quickly and efficiently. use.
Description
Technical Field
The utility model belongs to the technical field of organic waste resource equipment, a digestion reactor is related to, especially relate to a horizontal high solid anaerobic digestion reactor.
Background
With the increase of economy and the increase of the consumption level of residents, the emission amount of organic wastes is rapidly increased. Organic waste can cause problems of water eutrophication, soil acidification, heavy metal pollution and the like, and reasonable treatment and utilization of the organic waste are important subjects faced by people.
Anaerobic digestion is a sustainable organic waste treatment and disposal technology, and has the advantages of reduction, stabilization, resource utilization and the like. The anaerobic digestion is adopted to treat the organic waste, on one hand, the anaerobic digestion can efficiently degrade the organic waste such as kitchen waste, livestock and poultry manure, crop straws and the like, and inactivate part of pathogenic bacteria and parasitic ova; on the other hand, anaerobic digestion can generate methane, and the methane is used as a renewable clean energy source, so that the problem of energy shortage can be effectively relieved. However, the application of the traditional anaerobic digestion is greatly limited due to the problems of long stagnation period, low methane yield, difficult treatment of a large amount of biogas residues and biogas slurry and the like.
The high-solid anaerobic digestion can overcome the defects of the traditional anaerobic digestion, improve the treatment capacity of unit organic matters, improve the digestion efficiency and reduce the yield of the biogas residues and the biogas slurry to a great extent. However, the VS removal rate of the high-solid anaerobic digestion is low, and the operation stability is poor, mainly because the substrate in the system has complex rheological characteristics, the uniformity degree of the reaction system is poor due to high viscosity and poor fluidity, and a large number of dead zones exist in the reactor, so that a large number of intermediate products (such as ammonia nitrogen and VFAs) are accumulated, the problems of 'acid accumulation' and 'ammonia nitrogen inhibition' are formed, and the smooth proceeding of the high-solid anaerobic digestion is hindered. In addition, the vertical reactor has certain defects, and biogas slurry and biogas residues are easy to accumulate at the bottom of the reactor during anaerobic treatment, so that local acidification is caused, mass and heat transfer are hindered, and the anaerobic digestion efficiency is reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims at providing a horizontal high-solid anaerobic digestion reactor.
In order to realize the purpose, the technical scheme of the utility model is as follows:
a horizontal high-solid anaerobic digestion reactor consists of a feeding system, an anaerobic digestion reactor main body, a sludge discharge system and a methane collection system; the feeding system is arranged on a side baffle of the reactor main body and comprises a feeding blending bin, a feeding hopper cover, a screen, a feeding pipe and a sludge feeding pump; the side wall of the upper part of the feeding blending bin is a straight wall, the side wall of the lower part of the feeding blending bin is inclined, the top of the feeding blending bin is provided with a feeding hopper cover, the inside of the feeding hopper cover is provided with a screen, and the bottom of the feeding hopper cover is connected with a sludge feeding pump through a feeding pipe;
the anaerobic digestion reactor main body is a horizontal cube, and further comprises a spiral stirring shaft, stirring blades, a pH meter and an oxidation-reduction potentiometer; the spiral stirring shaft is a horizontal stirring shaft, penetrates through the side baffle and is connected with a driving motor, and the driving motor is used for rotating the stirring shaft; the stirring shaft is sequentially provided with a plurality of groups of stirring blades from left to right, and each group of stirring blades consists of 3-6 blades; the inner bin of the anaerobic digestion reactor is provided with a paddle-free area, and probes of a pH meter and an oxidation-reduction potentiometer are arranged at the paddle-free area of the inner bin of the reactor;
the sludge discharge system is arranged on the side baffle plate opposite to the feeding system and comprises a discharge pipe and a discharge pump, and the anaerobic digestion reactor main body is communicated with the discharge pump through the discharge pipe;
the biogas collecting system is positioned at the top of the anaerobic digestion reactor main body, wherein the biogas discharge pipe is arranged on the reactor cover plate.
The utility model discloses in the preferred disclosure example, horizontal high solid anaerobic digestion reactor main part, its effective height equals the bottom surface width, and effective height is 7 ~ 8.5 with the reactor height ratio.
The utility model discloses in the preferred disclosure example, the outward flange parcel rubber packing ring of feeding fill lid to play sealed effect.
The utility model discloses in the preferred disclosure, the feed blending storehouse is for leaking hopper-shaped, and the bottom inclination is 30 ~ 45.
In the preferred embodiment of the present invention, the sludge feeding pump is a G-type single screw pump.
In the preferred embodiment of the present invention, the horizontal high-solid anaerobic digestion reactor is provided with a plug flow stirring device consisting of a spiral stirring shaft, stirring blades and a driving motor.
The utility model discloses in the better disclosure example, stirring rake group number is set for according to reactor length to stirring rake interval evenly distributed stirring rake.
The utility model discloses in the better disclosure example, stirring paddle leaf length is 0.75 ~ 0.9m, and the stirring paddle leaf interval is 0.6 ~ 1.0m, and the stirring paddle leaf diameter is 1.5 ~ 1.8m.
The utility model discloses in the preferred disclosure example, the diameter and the effective depth of water ratio of reactor of stirring rake are 7.5 10 ~ 9, and stirring paddle leaf length is 7 with stirring rake interval ratio.
The utility model discloses in the preferred disclosure, stirring paddle leaf thickness is 0.1 ~ 0.3m, and the stirring paddle leaf angle is 30 ~ 60.
The utility model discloses in the better disclosure example, the discharge pump is pneumatic diaphragm pump, is connected with bolt and nut for the discharging pipe.
In the preferred embodiment of the present invention, the biogas discharge pipe is connected to the gas storage device and further provided with a biogas flow meter.
In the preferred embodiment of the present invention, the outer surface of the anaerobic digestion reactor main body is further covered with a solar heat insulation layer.
The utility model discloses to current high solid anaerobic digestion reaction system mix the effect poor, the reactor has a large amount of blind areas scheduling problem, improved high solid anaerobic digestion reactor. Redesign stirring rake interval, stirring rake diameter, stirring paddle leaf angle, reactor dead zone proportion is showing and is reducing, and the material mixes more evenly. The sludge in the reactor is fully contacted with the organic waste, the operation stability of the reactor is improved, and the high-solid anaerobic digestion biogas yield is improved, so that the energy recovery is increased. The utility model discloses select to confirm most suitable stirring rake thickness, stirring rake diameter and (mixing) shaft rotational speed, on the basis that obtains best marsh gas productivity, control driving motor energy consumption finds the balance point between income and energy consumption to obtain the biggest economic benefits. The utility model has strong universality and can be popularized to a large-scale anaerobic digestion reactor through a pilot plant test. According to the optimal proportion of the sizes of all parts of the reactor, a large-size anaerobic digestion reactor is designed according to geometric similarity.
Advantageous effects
The utility model discloses a horizontal anaerobic digestion reactor effectively avoids the local acidized condition of vertical reactor, and reactor volume utilization rate is high, can fully improve mass transfer heat transfer efficiency. In addition, the horizontal reactor has a plug flow effect, materials react for many times in the process from an inlet to an outlet, and the materials are discharged from a sludge discharge port after being completely digested. The reactor can obviously reduce dead zones in the reactor, enhance the flow characteristic of the matrix in the system, effectively avoid the problem of local acidification in the vertical reactor, and can realize the resource utilization of organic wastes at low cost, quickly and efficiently.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a horizontal high-solid anaerobic digestion reactor,
FIG. 2 is a schematic front view of a horizontal high-solids anaerobic digestion reactor,
FIG. 3 is a schematic diagram of the left side of the horizontal high solids anaerobic digestion reactor,
FIG. 4 is a schematic top view of a horizontal high solids anaerobic digestion reactor;
wherein: 1-a feed hopper cover; 2-feeding and blending bin; 3-screening a screen; 4-a feed pipe; 5-a sludge feed pump; 6-spiral stirring shaft; 7-inner bin of reactor; 8-a reactor cover plate; 9-stirring blades; 10-a pH meter; 11-oxidation-reduction potentiometer; 12-a biogas discharge pipe; 13-a drive motor; 14-a discharge pipe; 15-a discharge pump.
Detailed Description
The present invention will be described in detail with reference to the following examples so that those skilled in the art can better understand the present invention, but the present invention is not limited to the following examples.
Example 1
A horizontal high-solid anaerobic digestion reactor is characterized in that the main body of the reactor is a horizontal cube, the size of the reactor is 3m multiplied by 2m multiplied by 2.4m, and the total volume is 14.4m 3 Effective volume of 12m 3 。
The upper side wall of the feeding blending bin 2 is a vertical straight wall, the lower side wall is in an inclined funnel shape, the inclination angle is 45 degrees, and materials can be guaranteed to smoothly enter the feeding pipe 4. 2 tops in feeding allotment storehouse set up feeding hopper cover 1, 1 outward flange parcel rubber packing ring of feeding hopper cover, feeding hopper cover 1 and 2 top sealing connection in feeding allotment storehouse when covering ensure that 2 leakproofness in feeding allotment storehouse are good. The bottom of the feeding blending bin 2 is communicated with the feeding pipe 4, a screen 3 is arranged below the inner part of the feeding blending bin 2, and the screen 3 intercepts large-particle materials to enter the feeding pipe 4 to cause blockage.
The high solid anaerobic digestion reactor inner bin 7 is provided with a horizontal spiral stirring shaft 6, and the right end of the stirring shaft 6 penetrates through the side plate and is connected with the driving motor 13. The stirring shaft 6 is provided with 3 groups of stirring blades 9 from left to right, each group of stirring blades 9 consists of three blades, and the included angle of the three blades is 60 degrees. The diameter-to-effective water depth ratio of each group of the stirring paddles 9 is 9. The pH meter 10 and the oxidation-reduction potentiometer 11 extend into the inner chamber of the reactor from the side wall of the reactor, the distance between the pH meter and the oxidation-reduction potentiometer is 0.1m, and the condition in the reactor is monitored in real time.
The top of the horizontal high-solid anaerobic digestion reactor main body is provided with a cover plate 8, and the shape of the cover plate 8 is matched with the upper part of the reactor main body. A sealing gasket is clamped between the cover plate 8 and the reactor main body, and the cover plate 8 is tightly connected with the top of the reactor main body by a hasp, so that good sealing performance is ensured.
The reactor cover plate 8 is provided with a methane discharge pipe 12, and the tail end of the methane discharge pipe 12 is communicated with a gas storage device.
The bottom of the high-solid anaerobic digestion reactor main body is provided with a discharge hole, and a discharge pipe 14 is connected with the side wall of the reactor and a discharge pump 15. The discharge pump 15 is a pneumatic diaphragm pump and is connected with the discharge pipe 14 by bolts and nuts.
The outer surface of the anaerobic digestion reactor main body is also coated with a solar heat-insulating layer.
The materials are mixed and added into the horizontal high-solid anaerobic digestion reactor, and the reactor operates stably. The high-speed area of the flow field in the reactor is enlarged, and the proportion of dead zones is greatly reduced. The highest flow field speed of the top end of the stirring blade can reach 10m/s, and the dead zone proportion is 4.0%.
Example 2
A horizontal high solids anaerobic digestion reactor, substantially identical to the anaerobic digestion reactor system set up in example 1, except for the dimensions of the anaerobic digestion reactor. The anaerobic digestion reactor has a length, width and height of 36m × 9m × 12m, and a total volume of 3888m 3 Effective volume is 2916m 3 . The spiral stirring shaft 6 is provided with 10 groups of stirring blades 9, the diameter of each stirring blade 9 is 8.1m, and the angle of each stirring blade 9 is 30 degrees. This horizontal high solid anaerobic digestion reactor can carry out anaerobic digestion to more materials and handle, and stirring paddle leaf 9 from left to right fully turns the material, avoids the material to subside and piles up the mixed effect that influences the digestion process, reinforcing matrix.
Example 3
A horizontal high-solids anaerobic digestion reactor, which is substantially the same as the anaerobic digestion reactor of example 2 except that the stirring blades 9 of the anaerobic digestion reactor have an angle of 60 °.
Preferred reactor data are, for example: the volume of the high-solid anaerobic digestion reactor is 3888m 3 Effective volume is 2916m 3 (ii) a The horizontal high-solid anaerobic digestion stirring device is provided with 10 groups of stirring paddles, and the distance between the stirring paddles is 3.6m; the diameter of the stirring paddle is 8.1m, the thickness of the paddle is 0.18m, and the angles of the paddle are 30 degrees and 60 degrees. In the anaerobic digestion reaction process, the flow field mixing effect is good, the mass and heat transfer efficiency is high, and the dead zone proportion is small.
It is only above the embodiment of the utility model, not therefore the restriction the utility model discloses a patent range, all utilize the utility model discloses equivalent structure or equivalent flow transform that the specification was done, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses an in the patent protection scope.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221240686.8U CN217578438U (en) | 2022-05-23 | 2022-05-23 | Horizontal high-solid anaerobic digestion reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221240686.8U CN217578438U (en) | 2022-05-23 | 2022-05-23 | Horizontal high-solid anaerobic digestion reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217578438U true CN217578438U (en) | 2022-10-14 |
Family
ID=83552192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221240686.8U Active CN217578438U (en) | 2022-05-23 | 2022-05-23 | Horizontal high-solid anaerobic digestion reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217578438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119476120A (en) * | 2024-11-13 | 2025-02-18 | 华东交通大学 | A method to simplify the difficulty of hydraulic regulation of high-solid anaerobic digestion based on flow state dimensionality reduction |
-
2022
- 2022-05-23 CN CN202221240686.8U patent/CN217578438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119476120A (en) * | 2024-11-13 | 2025-02-18 | 华东交通大学 | A method to simplify the difficulty of hydraulic regulation of high-solid anaerobic digestion based on flow state dimensionality reduction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102115344B (en) | Two-phase integral anaerobic digestion process and equipment for treating biomass solid wastes | |
| CN108998359B (en) | An anaerobic reactor for mixed fermentation of pig manure and straw to produce biogas | |
| CN104893961B (en) | The kitchen castoff energy and fertilizer integrated treatment unit and method | |
| CN103172422A (en) | Horizontal reciprocated type agitating equipment of straw powder dust wastes | |
| CN106085836A (en) | The operation method of the CSTR integrated reactor in Methane Resources processing system | |
| CN113073042B (en) | Integrated livestock and poultry manure-straw cooperative treatment device based on dry fermentation | |
| CN203200264U (en) | Efficient hybrid anaerobic fermentation device | |
| CN206052022U (en) | A kind of device of organic solid castoff dry-type anaerobic fermentation | |
| CN110937935A (en) | Fertilizer preparation facilities for afforestation trees | |
| CN217578438U (en) | Horizontal high-solid anaerobic digestion reactor | |
| CN106434296B (en) | Integrated dry-wet anaerobic digestion device | |
| CN109943596A (en) | A method for promoting high-load and stable production of biogas from kitchen waste | |
| CN202322661U (en) | Dry type anaerobic high-temperature fermentation system for organic waste | |
| CN100509667C (en) | Method and equipment for combined fermentation treatment of food garbage and sewage sludge | |
| CN108178672A (en) | A kind of hoisting type composting device | |
| CN209872941U (en) | High solids horizontal plug flow anaerobic reactor | |
| CN206143198U (en) | Integral type is wet anaerobic digestion device futilely | |
| CN211947003U (en) | A high-concentration dry anaerobic fermentation device | |
| CN210313950U (en) | A municipal sludge fermentation vat for preparing afforestation soil | |
| CN216785830U (en) | An in-situ co-processing system for sludge in a sewage treatment plant | |
| CN212334954U (en) | Reaction kettle | |
| CN106085835A (en) | Stalk produces the operation method of the anaerobic ferment devices in Methane Resources system | |
| CN204752707U (en) | High concentration material biogas fermentation tank discharging device | |
| CN205710365U (en) | A kind of poultry manure fermentation tank | |
| CN214391600U (en) | Dirty degritting system of excrement is bred to beasts and birds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |