CN112321108A - Cabin type sludge aerobic fermentation equipment - Google Patents
Cabin type sludge aerobic fermentation equipment Download PDFInfo
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- CN112321108A CN112321108A CN202011406508.3A CN202011406508A CN112321108A CN 112321108 A CN112321108 A CN 112321108A CN 202011406508 A CN202011406508 A CN 202011406508A CN 112321108 A CN112321108 A CN 112321108A
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- 239000010802 sludge Substances 0.000 title claims abstract description 57
- 238000010564 aerobic fermentation Methods 0.000 title claims abstract description 27
- 230000004151 fermentation Effects 0.000 claims abstract description 171
- 238000000855 fermentation Methods 0.000 claims abstract description 170
- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 32
- 238000005273 aeration Methods 0.000 claims description 27
- 238000009826 distribution Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
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- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
- B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms with fixed axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
- B08B7/026—Using sound waves
- B08B7/028—Using ultrasounds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material 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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of sludge fermentation equipment, and particularly relates to bin type sludge aerobic fermentation equipment which comprises an outer fermentation bin, an inner fermentation bin, an interlayer, an air inlet pipe, an air outlet pipe and a temperature sensor, wherein the interlayer is formed between the outer fermentation bin and the inner fermentation bin, the air inlet pipe and the air outlet pipe are fixedly arranged on the outer fermentation bin, and the air inlet pipe and the air outlet pipe are respectively positioned at the top and the bottom of the side surface of the outer fermentation bin. This storehouse formula mud aerobic fermentation equipment, through starting supersonic generator, make ultrasonic vibration stick produce the ultrasonic wave, the shock ripples that the ultrasonic wave produced in the transmission course makes the inner wall in mud and interior fermentation storehouse produce resonance, thereby make the mud on the inner wall of fermentation storehouse including the adhesion drop, and then reach the purpose of fermentation storehouse inner wall in the automatic clearance, compare in tradition and prior art, the clearance of interior fermentation storehouse inner wall is more efficient, convenient, simple, and can not cause the influence to the use of internal fermentation storehouse internal mixing mechanism, the energy consumption is lower.
Description
Technical Field
The invention relates to the technical field of sludge fermentation equipment, in particular to bin type sludge aerobic fermentation equipment.
Background
Along with the development of national economy, urban living brings convenience to people's life and brings a large amount of sewage and sludge to urban environment. The sludge contains nutrients necessary for the growth of crops, and the content of organic components is very high. The recycling process of the sludge is very complex, and the aerobic fermentation of the sludge is an effective technology for solving the problem of sludge treatment. A certain amount of aerobic microorganisms are mixed into the water-containing sludge, so that the sludge can be subjected to high-stability harmless treatment, and organic substances generated after fermentation can be recycled.
Because mud has certain adhesion, easy adhesion is on the inner wall in fermentation storehouse, and traditional storehouse formula mud aerobic fermentation equipment clears up the inner wall that the fermentation was cang through the manual work through opening the fermentation storehouse, and is hard in time, among the prior art, clears up it through setting up the wall link plate on the (mixing) shaft, but the rotation of wall scraper blade has improved the rotary resistance of rabbling mechanism in the fermentation storehouse, when having reduced rabbling mechanism life, has improved the energy consumption.
In order to solve the problems, the application provides a bin type sludge aerobic fermentation device.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background technology, the invention provides a bin type sludge aerobic fermentation device which has the characteristics of automatically cleaning the inner wall of a fermentation bin and low energy consumption.
(II) technical scheme
In order to solve the technical problem, the invention provides bin type sludge aerobic fermentation equipment which comprises an outer fermentation bin, an inner fermentation bin, an interlayer, an air inlet pipe, an air outlet pipe and a temperature sensor, wherein the interlayer is formed between the outer fermentation bin and the inner fermentation bin, the air inlet pipe and the air outlet pipe are fixedly arranged on the outer fermentation bin, the air inlet pipe and the air outlet pipe are respectively positioned at the top and the bottom of the side surface of the outer fermentation bin, the air inlet pipe and the air outlet pipe are communicated with the interlayer, the temperature sensor is fixedly arranged on the outer fermentation bin, and a detection head at the end part of the temperature sensor extends into the interlayer;
the top of the outer fermentation bin is welded with a mounting frame, the top of the mounting frame is fixedly provided with a first motor, an output shaft of the first motor is fixedly sleeved with a main gear, the middle part of the inner fermentation bin is movably sleeved with a stirring shaft, the top of the stirring shaft extends to the outer part of the outer fermentation bin and is fixedly sleeved with a driven gear, and one end of the stirring shaft, which is positioned on the inner fermentation bin, is provided with a stirring blade;
the top of the outer fermentation bin and the top of the outer side of the outer fermentation bin are respectively provided with a feeding pipe and an exhaust pipe, and the feeding pipe and the exhaust pipe both extend into the inner fermentation bin;
the last fixed mounting of outer fermentation storehouse has ultrasonic vibration stick, ultrasonic vibration stick wire connection has supersonic generator, and in ultrasonic vibration stick's vibration end extended to interior fermentation storehouse.
Preferably, the gas distribution pipe is equipped with to the fixed cover on the (mixing) shaft, and the top activity assembly of (mixing) shaft has rotary joint, the top fixed mounting in outer fermentation storehouse has the air compressor machine, the gas transmission end fixedly connected with connecting pipe of air compressor machine, the one end and the fixed cup joint of rotary joint of connecting pipe are in the same place.
Preferably, the bottom in outer fermentation storehouse is equipped with the discharging pipe, the bottom of discharging pipe is connected with defeated material mechanism, defeated material mechanism is including defeated material machine, second motor, transport axle and transport blade, the tip fixed mounting of defeated material machine has the second motor, fixedly connected with carries the axle on the output shaft of second motor, carry axle activity suit inside defeated material machine, and carry epaxial the transport blade that is located defeated material machine inside that is equipped with.
Preferably, the outer edge of the master gear is meshed with the outer edge of the slave gear.
Preferably, the bottom of the air distribution pipe is provided with aeration nozzles in an equidistant array, and the aeration nozzles are obliquely arranged.
Preferably, the middle parts of the air distribution pipe and the stirring shaft are provided with through holes, the through holes in the air distribution pipe are communicated with the through holes in the stirring shaft and the aeration air nozzle, and the through holes in the stirring shaft are communicated with the connecting pipe.
Preferably, the material conveyor is obliquely arranged with height decreasing progressively from left to right, and an opening for discharging is formed in the bottom of the right side of the material conveyor.
Preferably, a lower elastic supporting block is arranged between the conical end at the bottom of the inner fermentation bin and the inner wall of the outer fermentation bin, an upper elastic supporting block is arranged between the top of the inner fermentation bin and the inner wall of the upper cover, and an elastic supporting block is arranged between the outer side wall of the inner fermentation bin and the inner side wall of the outer fermentation bin and used for vibration isolation of the inner side and the outer side. The upper portion elastic support block sets up the annular including fermentation storehouse top, goes up the annular groove in the annular groove card and is equipped with the annular and props the pad and be used for sealed upper portion, and lower portion elastic support block sets up down the annular including fermentation storehouse bottom cone end, and the annular is propped the pad and is used for sealed lower part in the lower annular groove card, goes up the annular and props the pad for the rigidity part is used for providing absolute support and protection annular, and the annular props up the pad direct contact and supports the face from top to bottom and be used for providing support, sealed and keep apart vibrations.
Preferably, the top of the inner fermentation bin and the upper sealing cover of the inner fermentation bin are in a sleeved relation, an annular inner inclined plane is designed at the end port of the inner fermentation bin at the sleeved part, and an upper backing ring is sleeved between the top of the inner fermentation bin and the upper sealing cover of the inner fermentation bin in a matched manner.
The technical scheme of the invention has the following beneficial technical effects:
1. this storehouse formula mud aerobic fermentation equipment, through starting supersonic generator, make ultrasonic vibration stick produce the ultrasonic wave, the shock ripples that the ultrasonic wave produced in the transmission course makes the inner wall in mud and interior fermentation storehouse produce resonance, thereby make the mud on the inner wall of fermentation storehouse including the adhesion drop, and then reach the purpose of fermentation storehouse inner wall in the automatic clearance, compare in tradition and prior art, the clearance of interior fermentation storehouse inner wall is more efficient, convenient, simple, and can not cause the influence to the use of internal fermentation storehouse internal mixing mechanism, the energy consumption is lower.
2. This storehouse formula mud aerobic fermentation equipment, through the intermediate layer that forms between outer fermentation storehouse and the interior fermentation storehouse, at fermentation process, accessible intake pipe fills into high-temperature steam or coolant in to the intermediate layer, cooperates temperature sensor, is convenient for regulate and control the mud fermentation temperature in the interior fermentation storehouse to reach the operation requirement of the different fermentation temperatures of mud, the adaptability is stronger, is favorable to improving the fermentation environment of mud.
3. This storehouse formula mud aerobic fermentation equipment through set up the gas distribution pipe on the (mixing) shaft, in fermentation process, drives the gas distribution pipe rotation through the rotation of (mixing) shaft to can improve the homogeneity of aeration, reinforcing fermentation effect shortens the fermentation cycle.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is one of the overall structural cross-sectional views of the present invention.
FIG. 3 is a sectional view of the structure of the stirring shaft and the gas distribution pipe of the present invention.
Fig. 4 is a block diagram of the control system of the present invention.
Fig. 5 is an enlarged structural view of a portion a in fig. 2.
Fig. 6 is an enlarged structural view of a portion B in fig. 2.
Fig. 7 is an enlarged structural view of a portion C in fig. 2.
Fig. 8 is a second sectional view of the overall structure of the present invention.
Fig. 9 is an enlarged view of the portion D in fig. 8.
Reference numerals:
1. an external fermentation bin; 2. an inner fermentation bin; 3. an interlayer; 4. an air inlet pipe; 5. an air outlet pipe; 6. a temperature sensor; 7. a mounting frame; 8. a first motor; 9. a main gear; 10. a stirring shaft; 11. a slave gear; 12. stirring blades; 13. a feed pipe; 14. an exhaust pipe; 15. an ultrasonic vibration rod; 16. an ultrasonic generator; 17. an air distribution pipe; 18. a rotary joint; 19. an air compressor; 20. a connecting pipe; 21. a discharge pipe; 22. a material delivery machine; 23. a second motor; 24. a delivery shaft; 25. a conveying blade; 26. a first electromagnetic valve; 27. a second electromagnetic valve; 28. the inner fermentation bin is covered by a sealing cover; 29. an inner bevel; 30. an upper backing ring; 31. a lower backing ring; 32. an upper ring groove; 33. a lower ring groove; 34. an annular support pad; 35. a bearing; 36. a swing rod; 37. a side wheel; 38. a bump; 39. a torsion spring.
Detailed Description
The aerobic fermentation of sludge is a comprehensive sludge treatment technology with harmlessness, volume reduction and stabilization, and is also called aerobic composting technology. The organic matters in the sludge are decomposed by using the functions of aerobic thermophilic bacteria and thermophilic bacteria to form a substance similar to humus soil. The heat generated in the metabolic process can raise the temperature of the stockpile layer to over 75 ℃, can effectively kill pathogens, parasitic ova and viruses, and improve the fertilizer content of the sludge. The utilization ways of the sludge fermentation finished product mainly comprise: the product after sludge fermentation should be limited to agriculture due to the relation between sludge agriculture and human food chain. The aerobic fermentation technology is concerned by people by the characteristics of low investment and low operation cost, and has wide application range. The technical bottleneck which troubles the popularization and application of the sludge fermentation technology is that the sludge has complex components and is easy to cause heavy metal pollution and the like.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1: referring to fig. 2, the present invention provides the following technical solutions: the bin type sludge aerobic fermentation equipment comprises an outer fermentation bin 1, an inner fermentation bin 2, an interlayer 3, an air inlet pipe 4, an air outlet pipe 5 and a temperature sensor 6.
As shown in figure 1, the top of the front surfaces of the outer fermentation bin 1 and the inner fermentation bin 2 is provided with an observation window made of transparent glass, so that when sludge is fed, workers can observe the material level of the sludge conveniently.
Form between outer fermentation storehouse 1 and the interior fermentation storehouse 2 intermediate layer 3, and fixed mounting has intake pipe 4 and outlet duct 5 on the outer fermentation storehouse 1, intake pipe 4 and outlet duct 5 are located the top and the bottom of 1 side in outer fermentation storehouse respectively, and intake pipe 4 and outlet duct 5 intercommunication intermediate layer 3.
In the sludge fermentation process in the implementation, high-temperature gas or liquid is filled into the interlayer 3 through the air inlet pipe 4, so that the sludge fermentation temperature in the inner fermentation bin 2 is increased, and the purpose of improving the sludge fermentation effect and efficiency is achieved.
It should be noted that the air outlet pipe 5 is used for discharging the gas or liquid medium in the interlayer 3.
The temperature sensor 6 is fixedly arranged on the outer fermentation bin 1, and a detection head at the end part of the temperature sensor 6 extends into the interlayer 3.
Through setting up temperature sensor 6 is convenient for detect the heating or cooling temperature in the intermediate layer 3 to be convenient for regulate and control the fermentation temperature in interior fermentation storehouse 2.
The welding of the top in outer fermentation storehouse 1 has mounting bracket 7, the top fixed mounting of mounting bracket 7 has first motor 8, fixed cover is equipped with master gear 9 on the output shaft of first motor 8, the middle part movable sleeve in interior fermentation storehouse 2 is equipped with (mixing) shaft 10, the top of (mixing) shaft 10 extends to the outside and the fixed cover in outer fermentation storehouse 1 and is equipped with from gear 11, and one of (mixing) shaft 10 in being located fermentation storehouse 2 serves and is equipped with stirring leaf 12.
It should be noted that the outer edge of the master gear 9 is meshed with the outer edge of the slave gear 11.
In this embodiment, the first motor 8 is started to drive the main gear 9 to rotate, and the main gear 9 and the driven gear 11 are engaged to drive the stirring blades 12 on the stirring shaft 10 to rotate, so that the sludge can be stirred, and the fermentation efficiency of the sludge can be improved.
The top in the top and the outside in outer fermentation storehouse 1 is equipped with inlet pipe 13 and blast pipe 14 respectively, inlet pipe 13 and blast pipe 14 all extend to in the fermentation storehouse 2.
In this embodiment, the feeding pipe 13 and the exhaust pipe 14 are used for filling the sludge into the inner fermentation chamber 2 and discharging the waste gas generated by fermentation, respectively.
Outer fermentation storehouse 1 is gone up fixed mounting and is had ultrasonic vibration stick 15, 15 wire connection of ultrasonic vibration stick have supersonic generator 16, and the vibration end of ultrasonic vibration stick 15 extends to in the fermentation storehouse 2.
In this embodiment, when discharging mud after the fermentation is completed, through starting up supersonic generator 16, make ultrasonic vibration stick 15 be located the instrument end production ultrasonic wave in interior fermentation storehouse 2, utilize the shock wave that the ultrasonic wave produced in the transmission course to make mud and the inner wall of interior fermentation storehouse 2 produce resonance to make the mud on the inner wall of interior fermentation storehouse 2 of adhesion drop, and then reach the purpose of automatic clearance interior fermentation storehouse 2 inner wall.
The connecting pipe 20 and the stirring shaft 10 are movably connected together through the rotary joint 18, so that the position of the connecting pipe 20 is ensured to be unchanged when the stirring shaft 10 rotates.
The bottom in outer fermentation storehouse 1 is equipped with discharging pipe 21, the bottom of discharging pipe 21 is connected with defeated material mechanism, defeated material mechanism includes defeated material machine 22, second motor 23, carries axle 24 and transport blade 25, the tip fixed mounting of defeated material machine 22 has second motor 23, fixedly connected with carries axle 24 on the output shaft of second motor 23, carry axle 24 activity suit inside defeated material machine 22, and carry and be equipped with the transport blade 25 that is located defeated material machine 22 inside on the axle 24.
In this embodiment, drive the transport blade 25 on carrying the axle 24 and rotate through starting second motor 23, can carry out the automatic transport to the internal fermentation storehouse 2 exhaust mud to reach the purpose of mud ejection of compact, and the rotational speed through control second motor 23 with open and close, can be convenient for control the discharge rate and the load of mud.
It should be noted that the material conveyor 22 is obliquely arranged from left to right in a height decreasing manner, and an opening for discharging material is formed in the bottom of the right side of the material conveyor 22.
Through will the defeated material machine 22 is the degressive slant setting of height from left to right, makes the mud in the defeated material machine 22 accessible self gravity slide to the opening one side of defeated material machine 22 right side bottom, makes things convenient for the discharge of the interior mud of defeated material machine 22.
As shown in fig. 3, the bottom of the air distribution pipe 17 is provided with an equidistant array of aeration nozzles, and the aeration nozzles are obliquely arranged.
The middle parts of the air distribution pipe 17 and the stirring shaft 10 are provided with through holes, the through holes inside the air distribution pipe 17 are communicated with the through holes inside the stirring shaft 10 and the aeration air nozzles, and the through holes inside the stirring shaft 10 are communicated with the connecting pipe 20.
In this implementation, through installing gas distribution pipe 17 on (mixing) shaft 10, in fermentation process, it is rotatory to drive gas distribution pipe 17 through the rotation of (mixing) shaft 10 to can improve the homogeneity of aeration air cock aeration, strengthen the sludge fermentation effect, shorten the fermentation period of mud.
On the basis of the scheme, in order to realize aeration in the closed inner fermentation bin 2, gas needs to be continuously input into the inner fermentation bin 2, an output gas channel is further arranged at the top of the inner fermentation bin 2, for example, an exhaust port at the top of the inner fermentation bin in fig. 2 is used for realizing a ventilation function, and a filter structure is arranged on a ventilation pipe.
The working principle and the using process of the invention are as follows: firstly, sludge is filled into the inner fermentation chamber 2 through the feeding pipe 13, then high-temperature gas and liquid are filled into the interlayer 3 through the air inlet pipe 4 under the detection of the temperature sensor 6 according to the fermentation temperature of the sludge, and the temperature in the inner fermentation chamber 2 is adjusted; then, in the fermentation process, the first motor 8 is started to drive the main gear 9 to rotate, the main gear 9 and the driven gear 11 are meshed for transmission, the stirring blades 12 and the air distribution pipe 17 on the stirring shaft 10 are driven to rotate, sludge is stirred, then the air compressor 19 is started, oxygen is injected into the through hole of the air distribution pipe 17 through the connecting pipe 20 and the through hole in the stirring shaft 10, and the oxygen is injected into the sludge through the aeration air nozzle at the bottom of the air distribution pipe 17; finally, after fermentation is completed, cooling medium is injected into the interlayer 3 to cool the sludge, the ultrasonic generator 16 is started to enable the ultrasonic vibrating rod 15 to be located at the tool end in the inner fermentation bin 2 to generate ultrasonic waves, the vibration waves generated in the transmission process by the ultrasonic waves enable the sludge and the inner wall of the inner fermentation bin 2 to resonate, so that the sludge adhered to the inner wall of the inner fermentation bin 2 falls off, the electromagnetic valve on the discharge pipe 21 is opened, the second motor 23 is started to drive the conveying blades 25 on the conveying shaft 24 to rotate, and the sludge discharged from the inner fermentation bin 2 is automatically conveyed out.
Example 2: on the basis of the above construction scheme of embodiment 1, a first electromagnetic valve 26 is further installed on the connection pipe, and an exhaust pump and a second electromagnetic valve 27 are further installed on the exhaust pipe, or the exhaust pipe is communicated with the connection pipe. Two solenoid valves are controlled by the controller, open and close in turn with certain frequency, realize the positive and negative change of aeration pressure in the storehouse, improve the aeration effect (the partial pressure grow of top air in the storehouse or diminish, cause the interior bubble of liquid compressed (the liquid can not be compressed but the bubble in the liquid can be compressed) then suddenly the decompression and expand fast, along with frequency variation expansion and shrink are in turn, finally explode in the air part of top), the output of controller controls the alternation of two solenoid valves simultaneously and opens and close.
Example 3: in the installation of the apparatus based on embodiment 1 or 2, since there are many rotating parts inside the inner fermentation chamber, the top of the inner fermentation chamber and the upper cylindrical section are in a sealed sleeve connection (sealed sleeve connection), as shown in fig. 2. A supporting block is arranged between the conical end at the bottom of the inner fermentation bin and the inner wall of the outer fermentation bin, and a supporting block is arranged between the top of the inner fermentation bin and the inner wall of the upper cover. A supporting block is arranged between the outer side wall of the inner fermentation bin and the inner side wall of the outer fermentation bin. The elastic support block can isolate vibration. The upper and lower support blocks are constructed in a specific manner as shown in fig. 5 and 7, respectively, and an annular gasket 34 is snap-fitted in the upper ring groove 32 for sealing the upper portion, and an annular gasket 34 is snap-fitted in the lower ring groove 33 for sealing the lower portion. Go up the annular and down the annular for the rigidity part, can provide absolute support and protect the annular and prop the pad, the annular props the inside and outside fermentation storehouse of pad direct contact, provides and supports and seals, can keep apart vibrations, prevents that the ability of ultrasonic vibration from transmitting to outer fermentation storehouse too much and leading to vibrations to weaken and vibrations effect decline problem take place. As shown in fig. 6, the top of the inner fermentation chamber and the upper sealing cover of the inner fermentation chamber are in a sleeved relation, an annular inner inclined plane 29 is designed at the end opening of the inner fermentation chamber at the sleeved position, and a backing ring 30 is arranged between the top of the inner fermentation chamber and the upper sealing cover of the inner fermentation chamber in a matched manner. The lower backing ring 31 is sleeved between the conical end of the bottom of the inner fermentation bin and the bin bottom supporting body, so that vibration can be isolated, and the problem that vibration is weakened and the vibration effect is reduced due to the fact that the ultrasonic vibration is excessively transmitted to the bin bottom supporting body is solved.
Example 4: when the technical scheme provided by each embodiment is applied, aiming at the conditions of complex sludge components and poor air permeability and fluidity, the problems of influence on the aeration effect and reduction of the aeration efficiency due to limited aeration range exist.
On the basis of the above embodiments, as shown in fig. 8 and 9, a rotatable swing rod 36 is sleeved on the stirring shaft below the air distribution pipe through a bearing 35, a torsion spring is installed between the swing rod and the air distribution pipe, the upper surface of the swing rod is approximately contacted with the aeration hole, the swing rod and the aeration hole deviate from each other by a small angle under the action of the torsion spring, a side wheel is installed at the end part of the swing rod, a convex block is installed at a corresponding position on the inner wall of the inner fermentation bin, and the side wheel 37 is contacted with the convex block 38 to cause the swing of the rod. Therefore, in the rotating process, the swing rod swings left and right relative to the air distribution pipe, and the disturbance around the aeration hole is improved so as to improve the aeration effect. So that a retardation relation is formed between the swing rod and the aeration hole to improve the local pressure of the aeration port and the aeration range.
The proposal of the embodiment can also solve the uneven condition that the center of the liquid level is low and the periphery is high due to the centrifugal movement of the sludge caused by the unidirectional rotation of the gas distribution pipe and the stirring blades, thereby solving the problem of poor aeration uniformity.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. For example, a bottom sampling port is added, and a top dosing port is added. (the fermentation time is influenced by the type of sludge, the method of adding chemicals during dewatering, and the method of pretreatment before composting, because the types and contents of organic substances which are easily decomposed are different). For example, a water replenishing pipe is added (when the water content of sludge is lower than 30%, the capability of extracting nutrients from water by microorganisms is reduced, the decomposition of organic matters is slow, when the water content is lower than 12-15%, the activity of the microorganisms is almost stopped), the temperature-increasing and air-exchanging process can cause water loss, and after sampling and detection, the water content is adjusted to 55-60%, and then the aerobic fermentation process can be carried out. The method for adjusting the water content comprises the steps of adding dry materials (conditioner), refluxing finished products, heat drying, airing and the like (when the water content exceeds 65%, water fills gaps among material particles, air channels are blocked, the air content is greatly reduced, fermentation is converted from an aerobic state to an anaerobic state, the temperature is sharply reduced, and as a result, a smelly intermediate product is formed). Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The bin type sludge aerobic fermentation equipment is characterized by comprising an outer fermentation bin (1), an inner fermentation bin (2), an interlayer (3), an air inlet pipe (4), an air outlet pipe (5) and a temperature sensor (6), wherein the interlayer (3) is formed between the outer fermentation bin (1) and the inner fermentation bin (2), the outer fermentation bin (1) is fixedly provided with the air inlet pipe (4) and the air outlet pipe (5), the air inlet pipe (4) and the air outlet pipe (5) are respectively positioned at the top and the bottom of the side surface of the outer fermentation bin (1), the air inlet pipe (4) and the air outlet pipe (5) are communicated with the interlayer (3), the temperature sensor (6) is fixedly arranged on the outer fermentation bin (1), and a detection head at the end part of the temperature sensor (6) extends into the interlayer (3);
the top of the outer fermentation bin (1) is welded with an installation frame (7), the top of the installation frame (7) is fixedly provided with a first motor (8), an output shaft of the first motor (8) is fixedly sleeved with a main gear (9), the middle of the inner fermentation bin (2) is movably sleeved with a stirring shaft (10), the top of the stirring shaft (10) extends to the outer part of the outer fermentation bin (1) and is fixedly sleeved with a driven gear (11), and one end of the stirring shaft (10) positioned at the inner fermentation bin (2) is provided with a stirring blade (12);
the top of the outer fermentation bin (1) and the top of the outer side of the outer fermentation bin are respectively provided with a feeding pipe (13) and an exhaust pipe (14), and the feeding pipe (13) and the exhaust pipe (14) both extend into the inner fermentation bin (2);
an ultrasonic vibration rod (15) is fixedly installed on the outer fermentation bin (1), the ultrasonic vibration rod (15) is connected with an ultrasonic generator (16) through a wire, and the vibration end of the ultrasonic vibration rod (15) extends into the inner fermentation bin (2);
an output gas channel is arranged at the top of the inner fermentation bin 2, the top of the inner fermentation bin exhausts gas to realize a ventilation function, and a filtering structure is arranged on the output gas channel.
2. The silo-type sludge aerobic fermentation equipment as claimed in claim 1, wherein the stirring shaft (10) is fixedly sleeved with a gas distribution pipe (17), the top of the stirring shaft (10) is movably assembled with a rotary joint (18), the top of the outer fermentation silo (1) is fixedly provided with an air compressor (19), the gas transmission end of the air compressor (19) is fixedly connected with a connecting pipe (20), and one end of the connecting pipe (20) is fixedly sleeved with the rotary joint (18).
3. The silo type sludge aerobic fermentation equipment as claimed in claim 1, wherein a discharging pipe (21) is arranged at the bottom of the outer fermentation silo (1), a material conveying mechanism is connected to the bottom of the discharging pipe (21), the material conveying mechanism comprises a material conveying machine (22), a second motor (23), a conveying shaft (24) and conveying blades (25), the second motor (23) is fixedly mounted at the end of the material conveying machine (22), the conveying shaft (24) is fixedly connected to an output shaft of the second motor (23), the conveying shaft (24) is movably sleeved inside the material conveying machine (22), and the conveying shaft (24) is provided with the conveying blades (25) inside the material conveying machine (22).
4. The silo-type aerobic fermentation equipment for sludge as claimed in claim 1, wherein the outer edge of the main gear (9) is meshed with the outer edge of the secondary gear (11).
5. The silo-type sludge aerobic fermentation equipment as claimed in claim 2, wherein the bottom of the gas distribution pipe (17) is provided with an equidistant array of aeration nozzles, and the aeration nozzles are obliquely arranged.
6. The silo-type sludge aerobic fermentation equipment as claimed in claim 2 or 5, wherein the gas distribution pipe (17) and the stirring shaft (10) are provided with through holes at the middle parts, the through holes in the gas distribution pipe (17) are communicated with the through holes and the aeration nozzles in the stirring shaft (10), and the through holes in the stirring shaft (10) are communicated with the connecting pipe (20).
7. The silo-type sludge aerobic fermentation equipment as claimed in claim 3, wherein the material conveyer (22) is obliquely arranged from left to right in a height decreasing manner, and the bottom of the right side of the material conveyer (22) is provided with an opening for discharging.
8. The aerobic fermentation equipment for sludge in bin according to claim 1 wherein there is a lower elastic support block between the bottom conical end of the inner fermentation bin and the inner wall of the outer fermentation bin, an upper elastic support block between the top of the inner fermentation bin and the inner wall of the upper cover, and an elastic support block between the outer wall of the inner fermentation bin and the inner wall of the outer fermentation bin for vibration isolation of the inner and outer sides.
9. The bin type sludge aerobic fermentation equipment as claimed in claim 8, wherein the upper elastic supporting block is an upper ring groove (32) arranged at the top of the inner fermentation bin, an annular supporting pad (34) is clamped in the upper ring groove (32) for sealing the upper part, the lower elastic supporting block is a lower ring groove (33) arranged at the tapered end of the bottom of the inner fermentation bin, an annular supporting pad (34) is clamped in the lower ring groove (33) for sealing the lower part, the upper ring groove and the lower ring groove are rigid parts for providing absolute support and protecting the annular supporting pad, and the annular supporting pad is directly contacted with the upper supporting surface and the lower supporting surface for providing support, sealing and vibration isolation.
10. The bin type sludge aerobic fermentation equipment as claimed in claim 1, wherein the top of the inner fermentation bin and the upper sealing cover of the inner fermentation bin are in a sleeved relationship, an annular inner inclined plane (29) is designed at the end port of the inner fermentation bin at the sleeved position, and an upper backing ring (30) is sleeved between the top of the inner fermentation bin and the upper sealing cover of the inner fermentation bin in a matching manner.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114011162A (en) * | 2021-09-28 | 2022-02-08 | 河北邯峰发电有限责任公司 | Biomass coupling power generation system and device |
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| CN112321108B (en) | 2024-03-19 |
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