CN216919067U - Sludge aerobic composting fermentation device - Google Patents
Sludge aerobic composting fermentation device Download PDFInfo
- Publication number
- CN216919067U CN216919067U CN202220566493.5U CN202220566493U CN216919067U CN 216919067 U CN216919067 U CN 216919067U CN 202220566493 U CN202220566493 U CN 202220566493U CN 216919067 U CN216919067 U CN 216919067U
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- Prior art keywords
- main body
- chamber
- aerobic composting
- temperature
- fermentation
- Prior art date
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- 239000010802 sludge Substances 0.000 title claims abstract description 57
- 238000000855 fermentation Methods 0.000 title claims abstract description 52
- 230000004151 fermentation Effects 0.000 title claims abstract description 51
- 238000009264 composting Methods 0.000 title claims abstract description 44
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 16
- 239000012774 insulation material Substances 0.000 claims abstract description 9
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 239000002361 compost Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000005273 aeration Methods 0.000 abstract description 8
- 239000002689 soil Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a sludge aerobic composting fermentation device, which comprises a device main body, an air supply device, a constant temperature heating device and a temperature measuring device, wherein the constant temperature heating device comprises a silicon rubber heating belt wound on the outer surface of the device main body and a temperature controller connected with the silicon rubber heating belt; the top of the fermentation chamber is provided with an upper cover, and a temperature measuring device is arranged in the fermentation chamber; the top of the fermentation chamber is communicated to a sodium hydroxide absorption liquid through an exhaust pipe, and the sodium hydroxide absorption liquid is sequentially connected with a buffer bottle and a boric acid absorption liquid; the side wall of the aeration chamber is provided with an air inlet pipe, the top of the aeration chamber is provided with an aeration disc communicated to the upper side of the partition plate with the hole, and two ends of the air inlet pipe are respectively connected with the aeration disc and the air supply device; a percolate outlet is arranged at the lowest part of the side wall of the ventilation chamber; the outer side of the silicon rubber heating belt, the outer side of the upper cover and the bottom of the device main body are all covered with heat insulation materials. The utility model improves the practicability and effectively improves the efficiency of sludge aerobic composting.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment, and particularly relates to a sludge aerobic composting fermentation device.
Background
The sludge production has also continued to increase in recent years due to the large increase in wastewater treatment volumes. The residual sludge contains nutrient elements such as nitrogen, phosphorus, potassium and the like and a large amount of organic matters, and can improve the physical and chemical properties of the soil and improve the soil fertility to a certain extent; however, the residual sludge contains a large amount of pathogenic bacteria, heavy metals and other toxic and harmful substances, and if the residual sludge is not scientifically treated and disposed, the residual sludge not only pollutes the environment, but also seriously harms the health of human beings. Through sludge aerobic composting, excess sludge can be converted into organic fertilizer for improving the physicochemical property of soil, increasing the fertility of the soil and reducing the using amount of the fertilizer.
In the sludge aerobic composting process, sufficient oxygen needs to be ensured to be supplied, and the temperature of a compost body also needs to be ensured to reach certain requirements, however, the uniformity degree of the supplied oxygen is difficult to control, and the temperature of the sludge aerobic composting is difficult to meet corresponding sanitary standards, so that the sludge aerobic composting process is easy to influence.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a sludge aerobic composting fermentation device, which ensures that a pile body has sufficient and uniform oxygen and proper temperature.
A sludge aerobic composting fermentation device comprises a device main body, a gas supply device, a constant temperature heating device and a temperature measuring device, wherein the constant temperature heating device is arranged on the outer surface of the device main body to heat the device main body; the device main body comprises an upper space and a lower space which are separated by a clapboard with holes, namely a fermentation chamber positioned above and a ventilation chamber positioned below; the top of the fermentation chamber is provided with an upper cover, and the inside of the fermentation chamber is provided with a temperature measuring device; the top of the fermentation chamber is communicated to a sodium hydroxide absorption liquid through an exhaust pipe, and the sodium hydroxide absorption liquid is sequentially connected with a buffer bottle and a boric acid absorption liquid; the side wall of the vent chamber is provided with an air inlet pipe communicated to the outside of the device main body, the top of the vent chamber is provided with a vent disc communicated to the upper side of the partition plate with the hole, one end of the air inlet pipe is connected with the vent disc through a rubber pipe, and the other end of the air inlet pipe is connected with an air supply device; a percolate outlet is arranged at the lowest part of the side wall of the ventilation chamber; the outer side of the constant-temperature heating device on the outer surface of the device main body is wrapped with a heat insulation material, and the outer side of the upper cover and the bottom of the device main body are both covered with the heat insulation material.
The constant temperature heating device comprises a silicon rubber heating belt and a temperature controller, the silicon rubber heating belt is connected with the temperature controller through a plug, the silicon rubber heating belt is wound outside the device main body, and an aerobic composting experiment is started after the power supply of the temperature controller is switched on.
The upper cover and the fermentation chamber are detachably connected through threads.
The ventilation disc is positioned at the geometric center of the partition plate with the holes, and the upper end of the ventilation disc is flush with the upper end face of the partition plate with the holes.
The air supply device is an air pump which controls the oxygen amount of the air pump by a gas rotameter.
The temperature measuring device is a thermometer, a perforation for inserting the thermometer is formed in the upper cover, and the diameter of the perforation is consistent with that of the thermometer; the part of the thermometer with 60 degrees centigrade or more is exposed from the upper cover.
The temperature measuring device is a temperature sensor, a temperature probe of the temperature sensor is arranged at the geometric center of sludge and compost materials in the fermentation chamber, and the sludge and the compost materials cover the temperature probe in the experimental process.
The utility model has the beneficial effects that: the utility model can input oxygen from the outside into the fermentation chamber through the air supply device, so that the sludge and the compost materials in the fermentation chamber are sufficiently and uniformly supplied with the oxygen, and the oxygen concentration in the fermentation chamber reaches the fermentation conditions of the sludge and the compost materials; the temperature measuring device of the fermentation chamber can monitor the temperature of sludge and compost materials in the aerobic composting process of the sludge, the outer side of the device main body is wound by a silicon rubber heating belt, and the outer side of the silicon rubber heating belt is wrapped by a heat insulation material so as to ensure that the sludge and the compost materials in the fermentation chamber have proper temperature and the temperature index in the composting process meets the corresponding sanitary standard; in addition, the leachate outlet at the lowest part of the side wall of the aeration chamber can discharge leachate generated in the sludge aerobic composting process, and gas generated in the sludge aerobic composting process is discharged and treated by using the exhaust pipe, so that the generation of odor during the sludge aerobic composting fermentation is reduced. The utility model ensures that the compost body has sufficient and uniform oxygen and proper temperature, improves the practicability and effectively improves the sludge aerobic composting efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a sludge aerobic composting fermentation device provided by the utility model;
wherein,
1-air pump, 2-gas rotameter, 3-air inlet pipe, 4-fermentation chamber, 5-device body, 6-thermometer, 7-clapboard with holes, 8-leachate outlet, 9-sodium hydroxide absorption liquid, 10-buffer bottle, 11-boric acid absorption liquid, 12-silicon rubber heating belt, 13-heat preservation material, 14-ventilation chamber, 15-upper cover, 16-ventilation disc and 17-exhaust pipe.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, a sludge aerobic composting fermentation device comprises a device main body 5, a gas supply device, a constant temperature heating device and a temperature measuring device, wherein the constant temperature heating device is arranged on the outer surface of the device main body to heat the device main body, the constant temperature heating device in the embodiment comprises a silicon rubber heating belt 12 and a temperature controller (not shown in the figure), the silicon rubber heating belt 12 is wound on the outer surface of the device main body 5, the silicon rubber heating belt 12 is connected with the temperature controller through a plug, and the constant temperature heating device can enable aerobic composting to be carried out at a constant temperature, so that sludge and composting materials in a fermentation chamber have proper temperatures; and the outer side of the silicon rubber heating belt 12 is wrapped with a heat insulation material 13. The device main body 5 comprises an upper space and a lower space which are separated by a partition board 7 with holes, the upper space is a fermentation chamber 4 positioned above the fermentation chamber, the lower space is a ventilation chamber 14 positioned below the fermentation chamber, and sludge and compost materials are stacked on the partition board 7 with holes. The top of the fermentation chamber is provided with an upper cover 15, and the upper cover 15 is detachably connected with the fermentation chamber 4 through threads; a temperature measuring device is arranged in the fermentation chamber 4; the top of the fermentation chamber 4 is communicated to a sodium hydroxide absorption liquid 9 through an exhaust pipe 17, and the sodium hydroxide absorption liquid 9 is sequentially connected with a buffer bottle 10 and a boric acid absorption liquid 11. The side wall of the breather chamber 14 is provided with an air inlet pipe 3 communicated to the outside of the device main body 5, the top of the breather chamber 14 is provided with a ventilation disc 16 communicated to the upper side of the partition plate 7 with holes, one end of the air inlet pipe 3 is connected with the ventilation disc 16 through a rubber pipe, and the other end of the air inlet pipe 3 is connected with an air supply device.
The ventilation disk 16 is positioned at the geometric center of the partition plate 7 with holes, the upper end of the ventilation disk 15 is flush with the upper end face of the partition plate 7 with holes, and the upper cover 15, the partition plate 7 with holes and the ventilation disk 16 are sequentially arranged from top to bottom along the central axis of the device main body 5.
In the aerobic composting process of sludge, the temperature is an important index influencing the composting process, and in the experimental process, the heat is easy to dissipate, so that the reading of the temperature measuring device has errors. Therefore, the outer side of the silicon rubber heating belt 12 on the outer surface of the device main body 5 is wrapped with the heat insulation material 13; and the outer side of the upper cover 15 and the bottom of the device main body 5 are both covered with heat insulation materials 13.
Percolate can be generated in the sludge aerobic composting process, and a percolate outlet 8 is arranged at the lowest part of the side wall of the aeration chamber 14, so that sludge and compost materials are placed on the perforated partition plate 7 during the experiment, and moisture in the sludge and compost materials drops to the bottom of the aeration chamber 14 through the perforated partition plate 7 to be collected and is discharged through the percolate outlet 8 at the lowest part of the right side wall of the device main body 5.
Oxygen is also an important factor influencing the aerobic composting process of sludge and is an important parameter for judging the aerobic composting stage of sludge. Therefore, air is introduced into the fermentation chamber 4 through an air supply device, the air supply device is an air pump 1 which controls the oxygen amount of the air pump 1 through a gas rotameter 2 in the embodiment, and the air outlet end of the gas rotameter 2 is connected with an air inlet pipe 3. The air pump 1 pours air into the aeration chamber 14 through the air inlet pipe 3, and the air passes through the perforated partition plate 7 through the ventilation disc 16 and enters the fermentation chamber 4, so that oxygen supply required in the sludge aerobic composting process is met, and the microbial activity in sludge and composting materials is directly influenced.
In this embodiment, the temperature measuring device is the thermometer 6, the upper cover 15 is provided with a through hole for the thermometer 6 to insert, the diameter of the through hole is consistent with that of the thermometer 6, and the temperature of the sludge aerobic composting during fermentation generally rises to more than 60 ℃, so that the part of the thermometer 6 with the temperature of more than 60 ℃ is exposed from the upper cover 15, which is beneficial for experimenters to monitor the temperature change of the sludge aerobic composting process and know the effect of the aerobic composting.
Gas is generated in the aerobic composting process of sludge, therefore, the upper cover 15 is provided with a through hole for inserting the exhaust pipe 17, the diameter of the through hole is consistent with the outer diameter of the exhaust pipe 17, the exhaust pipe 17 is connected with the upper cover 15, and the pipe orifice of the exhaust pipe 17 is flush with the bottom of the upper cover 15.
When aerobic composting starts, sludge and composting materials are uniformly mixed and then poured into a fermentation chamber 4, an upper cover 15 is covered, sodium hydroxide absorption liquid 9 and boric acid absorption liquid 11 are filled into a wide-mouth bottle with a plug, the wide-mouth bottle with the sodium hydroxide absorption liquid 9, a buffer bottle and the wide-mouth bottle with the boric acid absorption liquid 11 are communicated by a rubber pipe, the flow of a gas rotameter 2 is set, the air pump 1 and the gas rotameter 2 are communicated by the rubber pipe, the air outlet end of the gas rotameter 2 is communicated with an air inlet pipe 3 connected with a ventilating disc 16, an exhaust pipe is communicated to the sodium hydroxide absorption liquid 9, a silicon rubber heating belt is connected with a temperature controller, the temperature of the temperature controller is set, and after the power supply of an air supply device and the temperature controller is switched on, an aerobic composting experiment is started.
Example 2
The difference between this embodiment and embodiment 1 is that the temperature measuring device in this embodiment is a temperature sensor, and the other settings and experimental processes are all the same as those in embodiment 1. The temperature probe of the temperature sensor is arranged at the geometric center of the sludge and compost materials in the fermentation chamber 4, the temperature probe of the temperature sensor is covered by the sludge and compost materials in the experimental process, and the temperature signal data is transmitted to the temperature sensor through the contact of the temperature probe and the sludge and compost materials in the fermentation chamber 4.
Claims (7)
1. A sludge aerobic composting fermentation device is characterized in that: the device comprises a device main body, an air supply device, a constant-temperature heating device and a temperature measuring device, wherein the constant-temperature heating device is arranged on the outer surface of the device main body to heat the device main body; the device main body comprises an upper space and a lower space which are separated by a clapboard with holes, namely a fermentation chamber positioned above and a ventilation chamber positioned below; the top of the fermentation chamber is provided with an upper cover, and the inside of the fermentation chamber is provided with a temperature measuring device; the top of the fermentation chamber is communicated to a sodium hydroxide absorption liquid through an exhaust pipe, and the sodium hydroxide absorption liquid is sequentially connected with a buffer bottle and a boric acid absorption liquid; the side wall of the vent chamber is provided with an air inlet pipe communicated to the outside of the device main body, the top of the vent chamber is provided with a vent disc communicated to the upper side of the partition plate with the hole, one end of the air inlet pipe is connected with the vent disc through a rubber pipe, and the other end of the air inlet pipe is connected with an air supply device; a percolate outlet is arranged at the lowest part of the side wall of the ventilation chamber; the outer side of the constant temperature heating device on the outer surface of the device main body is wrapped with a heat insulation material, and the outer side of the upper cover and the bottom of the device main body are both covered with the heat insulation material.
2. The sludge aerobic composting fermentation device of claim 1 wherein: the constant temperature heating device comprises a silicon rubber heating belt and a temperature controller, the silicon rubber heating belt is connected with the temperature controller through a plug, the silicon rubber heating belt is wound outside the device main body, and an aerobic composting experiment is started after the power supply of the temperature controller is switched on.
3. The sludge aerobic composting fermentation device of claim 1 wherein: the upper cover and the fermentation chamber are detachably connected through threads.
4. The sludge aerobic composting fermentation device of claim 1 wherein: the ventilation disc is positioned at the geometric center of the partition plate with the holes, and the upper end of the ventilation disc is flush with the upper end face of the partition plate with the holes.
5. The sludge aerobic composting fermentation device of claim 1 wherein: the air supply device is an air pump which controls the oxygen amount of the air pump by a gas rotameter.
6. The sludge aerobic composting fermentation device of claim 1 wherein: the temperature measuring device is a thermometer, a perforation for inserting the thermometer is formed in the upper cover, and the diameter of the perforation is consistent with that of the thermometer; the part of the thermometer with 60 degrees centigrade or more is exposed from the upper cover.
7. The sludge aerobic composting fermentation device of claim 1 wherein: the temperature measuring device is a temperature sensor, a temperature probe of the temperature sensor is arranged at the geometric center of sludge and compost materials in the fermentation chamber, and the temperature probe is covered by the sludge and the compost materials in the experimental process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220566493.5U CN216919067U (en) | 2022-03-15 | 2022-03-15 | Sludge aerobic composting fermentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220566493.5U CN216919067U (en) | 2022-03-15 | 2022-03-15 | Sludge aerobic composting fermentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216919067U true CN216919067U (en) | 2022-07-08 |
Family
ID=82226657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220566493.5U Expired - Fee Related CN216919067U (en) | 2022-03-15 | 2022-03-15 | Sludge aerobic composting fermentation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216919067U (en) |
-
2022
- 2022-03-15 CN CN202220566493.5U patent/CN216919067U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220708 |