CN113429097B - Sludge fermentation equipment - Google Patents
Sludge fermentation equipment Download PDFInfo
- Publication number
- CN113429097B CN113429097B CN202110920738.XA CN202110920738A CN113429097B CN 113429097 B CN113429097 B CN 113429097B CN 202110920738 A CN202110920738 A CN 202110920738A CN 113429097 B CN113429097 B CN 113429097B
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- Prior art keywords
- air
- storage cavity
- sludge
- partition plate
- fermentation
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- 238000000855 fermentation Methods 0.000 title claims abstract description 46
- 230000004151 fermentation Effects 0.000 title claims abstract description 46
- 239000010802 sludge Substances 0.000 title claims abstract description 42
- 238000005192 partition Methods 0.000 claims description 32
- 239000000428 dust Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 101100372509 Mus musculus Vat1 gene Proteins 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses sludge fermentation equipment which comprises a fermentation tank, wherein an air inlet device is arranged at the bottom of the fermentation tank, and a negative pressure air exhaust device is arranged above the fermentation tank. The beneficial effects of the invention are as follows: the negative pressure air extractor is arranged above the sludge pile of the fermentation tank, so that the flow of gas in the sludge pile can be accelerated, and the gas in the sludge pile can be sucked out, thereby being beneficial to the rapid discharge of water in the sludge.
Description
Technical Field
The invention relates to sewage treatment, in particular to sludge fermentation equipment.
Background
In the sewage treatment process, a large amount of sludge is generated, and the effect of fermentation treatment is reduced and the time of fermentation treatment is prolonged due to the influence of moisture in the post-treatment, so that the redundant water in the sludge is required to be separated.
In the prior art, sludge is treated in a drying mode, but the energy consumption is relatively high; the method adopts a natural airing mode or a mode of increasing air flow on the surface of the sludge to improve the evaporation speed of water, and the evaporation speed is too low although the energy consumption is reduced, so that the treatment efficiency of the sludge is severely restricted, and the device for reducing the water content of the sludge, which combines the efficiency and the energy consumption, is particularly important.
Disclosure of Invention
The invention aims to overcome the defect of low natural airing and drying efficiency in the prior art and provides sludge fermentation equipment.
The aim of the invention is achieved by the following technical scheme:
the sludge fermentation equipment comprises a fermentation tank, wherein an air inlet device is arranged at the bottom of the fermentation tank, and a negative pressure air exhaust device is arranged above the fermentation tank.
Preferably, the air inlet device is a high-pressure air inlet pipe.
Preferably, the air inlet device comprises an air storage cavity arranged below the fermentation box, an air inlet channel is arranged on the air storage cavity, a separation plate is arranged at the top of the air storage cavity, and air holes communicated with the fermentation box and the air storage cavity are formed in the separation plate and are more than two.
Preferably, a separation plate capable of moving up and down along the air storage cavity is arranged in the air storage cavity, the separation plate divides the air storage cavity into an upper cavity and a lower cavity, and sealing gaskets are arranged around the separation plate.
Preferably, a telescopic rod is arranged in the lower chamber, a base of the telescopic rod is arranged on the bottom surface of the air storage cavity, and a telescopic end of the telescopic rod is connected with the partition plate.
Preferably, the upper surface of the partition plate is provided with anti-blocking rods, the anti-blocking rods are in one-to-one correspondence with the vent holes, and the anti-blocking rods are located below the corresponding vent holes.
Preferably, the end of the anti-blocking rod is provided with an airflow adjusting section, and the cross-sectional area of the airflow adjusting section gradually increases from top to bottom.
Preferably, the partition plate is in a bucket shape with a low middle part and a high periphery, a dust collection pipe is arranged in the upper cavity, a dust outlet pipe is arranged on the side wall of the upper cavity, an inlet of the dust collection pipe is arranged in the middle part of the partition plate, an outlet of the dust collection pipe is connected with a suction device through the dust outlet pipe, and a valve is arranged on the dust outlet pipe.
Preferably, a material stirring device is arranged in the fermentation box.
Preferably, a hanging ring is arranged above the fermentation box.
The invention has the following advantages:
The invention is also provided with the negative pressure air extractor above the sludge pile of the fermentation tank, so that on one hand, the flow of the air in the sludge pile can be accelerated, and on the other hand, the air in the sludge pile can be sucked out, thereby being beneficial to the rapid discharge of the moisture in the sludge.
The tail end of the anti-blocking rod is provided with an air flow regulating section, and along with the air flow regulating section continuously penetrating into the vent hole, a gap between the air flow regulating section and the vent hole is gradually reduced, so that the movement path of air in the sludge is regulated while the air outlet rate is regulated by regulating the area of the air outlet gap under the condition that the pressure in the upper chamber only slightly fluctuates (fluctuation of the pressure in the upper chamber is caused by the tiny movement of the partition plate).
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic structural view of the partition plate and the partition plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment provides sludge fermentation equipment, as shown in fig. 1, which comprises a fermentation tank 1, wherein an air inlet device 2 is arranged at the bottom of the fermentation tank 1, and a negative pressure air exhaust device 3 is arranged above the fermentation tank.
When the sludge fermentation equipment is used, sludge to be fermented is prevented from being in the fermentation tank 1, the air inlet device 2 blows air into the sludge pile to be fermented, then the air continuously rises, and finally the air is separated from the sludge pile. The negative pressure air extractor 3 is arranged above the sludge pile of the fermentation tank 1, so that on one hand, the flow of gas in the sludge pile can be accelerated, and on the other hand, the gas in the sludge pile can be sucked out, and the rapid discharge of water in the sludge is facilitated.
In this embodiment, the air inlet device 2 may be a high-pressure air inlet pipe 4, and the air inlet pipe may be disposed at the bottom of the fermentation tank 1 in a dispersed manner, and may penetrate sludge as much as possible by adopting a high-pressure air inlet manner.
In this embodiment, the air inlet device 2 may include an air storage cavity 7 disposed below the fermentation tank 1, an air inlet channel is disposed on the air storage cavity 7, a partition plate 6 is disposed at the top of the air storage cavity 7, and air holes 8 that communicate with the fermentation tank 1 and the air storage cavity 7 are disposed on the partition plate 6, and more than two air holes 8 are shown in fig. 2-3.
An air storage cavity 7 is arranged below the fermentation tank 1, and the air storage cavity 7 can be connected with a gas compression device to store compressed gas in the air storage cavity 7. Wherein the gas storage cavity 7 and the fermentation tank 1 are separated by a separation plate 6, and the ventilation condition in the sludge pile is adjusted by selecting the number, the position and the size of the ventilation holes 8.
In this embodiment, a partition plate 9 capable of moving up and down along the air storage chamber 7 may be disposed in the air storage chamber 7, the partition plate 9 divides the air storage chamber 7 into an upper chamber 10 and a lower chamber 11, and sealing gaskets are disposed around the partition plate 9.
The partition plate 9 may correspond to a piston, further compress the gas in the upper chamber 10 or adjust the size of the upper chamber 10 to adjust the intake speed and pressure of the intake device 2.
In this embodiment, a telescopic rod 12 may be disposed in the lower chamber 11, a base of the telescopic rod 12 is mounted on the bottom surface of the air storage cavity 7, and a telescopic end of the telescopic rod 12 is connected with the partition plate 9.
The position of the partition plate 9 is adjusted by the extension and retraction of the extension and retraction rod 12, thereby adjusting the size of the upper chamber 10 and the pressure of the gas in the upper chamber. The telescopic rod 12 can be an electric telescopic rod 12 or an air cylinder or an oil cylinder, and the telescopic rod can drive the partition plate 9 to repeatedly move in a specified direction.
In this embodiment, the upper surface of the partition plate 9 may be provided with anti-blocking rods 13, where the anti-blocking rods 13 are in one-to-one correspondence with the air holes 8, and the anti-blocking rods 13 are located below the corresponding air holes 8.
The upper surface of division board 9 sets up prevents stifled pole 13, and when the distance between division board 9 and division board 6 is less than the length of stifled pole 13, prevent stifled pole 13 can insert in air vent 8, pushes away the foreign matter that blocks up in air vent 8 back into fermentation vat 1.
In this embodiment, the end of the anti-blocking rod 13 may be provided with an airflow adjusting section, and the cross-sectional area of the airflow adjusting section increases gradually from top to bottom.
The end of the anti-blocking rod 13 is provided with an air flow regulating section, and as the air flow regulating section continuously goes deep into the vent hole 8, the gap between the air flow regulating section and the vent hole 8 is gradually reduced, so that the movement path of the air in the sludge is regulated while the air outlet rate is regulated by regulating the area of the air outlet gap under the condition that the pressure in the upper chamber 10 only slightly fluctuates (the fluctuation of the pressure in the upper chamber 10 is caused by the small movement of the partition plate 9).
The lower part of the air flow adjusting section can be directly connected to the partition plate 9 or can be connected to the partition plate 9 through a columnar connecting part, wherein the section of the columnar connecting part is matched with the size of the vent hole 8.
In this embodiment, the partition plate 9 may be in a bucket shape with a low middle part and a high periphery, a dust suction pipe is disposed in the upper chamber 10, a dust outlet pipe is disposed on a side wall of the upper chamber, an inlet of the dust suction pipe is disposed in the middle part of the partition plate 9, an outlet of the dust suction pipe is connected with a suction device through the dust outlet pipe, and a valve is disposed on the dust outlet pipe.
Normally, sludge does not fall into the upper chamber 10 due to the upward pressure of the gas in the vent hole 8. When the partition plate 9 moves downwards, the air inlet pressure of the air inlet of the upper chamber 10 is increased under normal conditions, so that the pressure in the upper chamber is kept constant as much as possible, but if the pressure of the upper chamber 10 is reduced due to improper operation, the sludge may fall onto the partition plate 9 through the air vent 8, at this time, the sludge gradually pops down to the lowest middle part of the partition plate 9 due to the inclined arrangement of the partition plate 9, and if the condition occurs, the air suction device can be started to suck the accumulated sludge.
The dust suction pipe in this embodiment needs to have a certain elasticity, can follow the movement of the partition plate 9 to move up and down, and a person skilled in the art should set the path through which the dust suction pipe passes according to the setting condition of the anti-blocking rod 13, so as to avoid the dust suction pipe from blocking the work of the anti-blocking rod 13, and can primarily limit the local part of the dust suction pipe if necessary.
In this embodiment, a material stirring device may be disposed in the fermentation tank 1, which is favorable for uniform dispersion of gas and improves uniformity of sludge.
In this embodiment, rings can be provided on the fermenting case 1, so that the fermenting case 1 can be conveniently transferred, and the fermenting case 1 can be placed according to the designated logic, for example, in a matrix, so that the space utilization efficiency is improved.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (4)
1. Sludge fermentation equipment, its characterized in that: the fermentation tank comprises a fermentation tank, wherein an air inlet device is arranged at the bottom of the fermentation tank, and a negative pressure air exhaust device is arranged above the fermentation tank;
The air inlet device comprises an air storage cavity arranged below the fermentation box, an air inlet channel is arranged on the air storage cavity, a separation plate is arranged at the top of the air storage cavity, and air holes for communicating the fermentation box and the air storage cavity are formed in the separation plate and are more than two;
A partition plate capable of moving up and down along the air storage cavity is arranged in the air storage cavity, the partition plate divides the air storage cavity into an upper cavity and a lower cavity, and sealing gaskets are arranged around the partition plate;
a telescopic rod is arranged in the lower chamber, a base of the telescopic rod is arranged on the bottom surface of the air storage cavity, and a telescopic end of the telescopic rod is connected with the partition plate;
the upper surface of the partition plate is provided with anti-blocking rods, the anti-blocking rods are in one-to-one correspondence with the vent holes, and the anti-blocking rods are positioned below the corresponding vent holes;
the tail end of the anti-blocking rod is provided with an air flow adjusting section, and the cross section area of the air flow adjusting section is gradually increased from top to bottom;
And a hanging ring is arranged above the fermentation tank.
2. The sludge fermentation apparatus of claim 1, wherein: the air inlet device is a high-pressure air inlet pipe.
3. The sludge fermentation apparatus of claim 1, wherein: the division board is the middle part low hopper form that is high all around, be provided with dust absorption pipe, lateral wall in the upper chamber and be provided with out the dirt pipe, the entry setting of dust absorption pipe is connected with getter device through going out dirt pipe in division board middle part, export, be provided with the valve on the dirt pipe.
4. The sludge fermentation apparatus of claim 1, wherein: the fermentation box is internally provided with a material stirring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110920738.XA CN113429097B (en) | 2021-08-11 | 2021-08-11 | Sludge fermentation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110920738.XA CN113429097B (en) | 2021-08-11 | 2021-08-11 | Sludge fermentation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113429097A CN113429097A (en) | 2021-09-24 |
| CN113429097B true CN113429097B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110920738.XA Active CN113429097B (en) | 2021-08-11 | 2021-08-11 | Sludge fermentation equipment |
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| CN (1) | CN113429097B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564019B (en) * | 2021-08-11 | 2024-04-02 | 重庆灏宁生物技术有限公司 | Equipment and method for recycling humic acid by sludge fermentation |
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| CN113429097A (en) | 2021-09-24 |
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