CN107473565A - A kind of pretreatment system of castoff high in containing water - Google Patents
A kind of pretreatment system of castoff high in containing water Download PDFInfo
- Publication number
- CN107473565A CN107473565A CN201710828373.1A CN201710828373A CN107473565A CN 107473565 A CN107473565 A CN 107473565A CN 201710828373 A CN201710828373 A CN 201710828373A CN 107473565 A CN107473565 A CN 107473565A
- Authority
- CN
- China
- Prior art keywords
- outlet
- release
- containing water
- pretreatment system
- ammonia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 100
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 45
- 239000002002 slurry Substances 0.000 claims abstract description 45
- 230000007062 hydrolysis Effects 0.000 claims abstract description 25
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 25
- 238000000265 homogenisation Methods 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 239000005416 organic matter Substances 0.000 abstract description 12
- 239000010815 organic waste Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 10
- 238000005243 fluidization Methods 0.000 abstract description 4
- 229920002472 Starch Polymers 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 235000019698 starch Nutrition 0.000 abstract description 3
- 239000008107 starch Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000009955 starching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010792 warming Methods 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
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of pretreatment system of castoff high in containing water, for organic waste treatment field, including：Fluidizer is hydrolyzed, there is hydrolyzate outlet, ammonia outlet, dirty slurry entrance and steam inlet；Release of pressure tower, the entrance of release of pressure tower communicate with hydrolyzate outlet；Homogenization device, its output end connect dirty slurry entrance by lifting means.The present invention is using homogenization device by organic waste treatment into dirty pulpous state, hydrolysis fluidizer becomes the organic matter of long chain in dirty starch the organic matter of short molecular chain, part becomes biochemical material in the material that traditional anaerobic reactor is difficult to decompose after hydrolysis fluidisation, improves the biodegradability of dirty slurry；Hydrolyzate is also flowed through release of pressure tower by the present invention in addition, and maintenance time guarantee is provided for subsequent technique.
Description
Technical field
The present invention relates to organic waste treatment field, more particularly to a kind of pretreatment system of castoff high in containing water
System.
Background technology
Castoff high in containing water includes medicine puree, cultivation excrement, human feces, kitchen garbage, municipal sludge, food industry
Sludge etc..At present, the method handled it is generally anaerobic biological.But there is long chain in these organic wastes
Organic matter and be difficult to decompose so that biodegradability is poor, have impact on the effect of anaerobic biochemical treatment.
The content of the invention
In order to solve the above problems, the present invention provides a kind of pretreatment system of castoff high in containing water, improves discarded
The biodegradability of organic matter in thing.
The technical solution adopted in the present invention is：
A kind of pretreatment system of castoff high in containing water, including：
Fluidizer is hydrolyzed, there is hydrolyzate outlet, ammonia outlet, dirty slurry entrance and steam inlet；
Release of pressure tower, the entrance of release of pressure tower communicate with hydrolyzate outlet；
Homogenization device, its output end connect dirty slurry entrance by lifting means.
As a further improvement on the present invention, in addition to ammonia crystallization apparatus, the ammonia outlet pass through pipeline communication ammonia knot
Brilliant device.
As a further improvement on the present invention, the release of pressure tower is provided with gas vent, and the gas vent of release of pressure tower leads to ammonia
Crystallization apparatus.
As a further improvement on the present invention, the release of pressure tower is provided with liquid outlet, liquid outlet and homogenization device it
Between be provided with backflow part, backflow part the hydrolyzate that release of pressure tower is discharged is back to homogenization device.
As a further improvement on the present invention, the homogenization device includes equal stock tank and homogenate tank, and the outlet of equal stock tank is set
There is cutting pump, the outlet of cutting pump is provided with feed pump, and the outlet of feed pump connects homogenate tank by pipeline, and the outlet of homogenate tank leads to
Piping connection hydrolysis fluidizer.
As a further improvement on the present invention, connect the homogenate tank and the dirty pipeline for starching entrance is provided with as lifting and set
Standby feed pressure-producing part.
As a further improvement on the present invention, in addition to heat exchanger, the heat exchanger is by hydrolyzate outlet release of pressure tower
Entrance, heat exchanger is simultaneously by the dirty slurry entrance of the outlet of homogenization device.
As a further improvement on the present invention, the hydrolysis fluidizer includes：
Fluidized bed body, top are provided with overfall, and bottom, which is provided with, lets out mud mouth, and dirt slurry entrance leads in fluidized bed body；
The shell being placed on outside fluidized bed body, forms spill cavity between shell and fluidized bed body, ammonia outlet is located at shell
Top and connection spill cavity, hydrolyzate outlet are arranged at outer casing bottom and lead to spill cavity；
And the steam distributor of fluidized bed body bottom is arranged on, steam distributor is defeated by the external water vapour in steam inlet
Enter pipe.
As a further improvement on the present invention, the steam injection direction of the steam distributor is upward.
As a further improvement on the present invention, the homogenization device is provided with the exhaust outlet for leading to ammonia crystallization apparatus, homogenate dress
Bottom set end is provided with mud discharging mouth, and mud discharging mouth is connected with letting out mud mouth by discharge pipeline.
The beneficial effects of the invention are as follows：The present invention is flowed organic waste treatment into dirty pulpous state, hydrolysis using homogenization device
The organic matter that the organic matter of long chain in dirty starch is become to short molecular chain is put in makeup, is partly difficult to point in traditional anaerobic reactor
The material of solution becomes biochemical material after hydrolysis fluidisation, improves the biodegradability of dirty slurry；The present invention will also hydrolysis in addition
Liquid stream crosses release of pressure tower, and maintenance time guarantee is provided for subsequent technique.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the schematic diagram for hydrolyzing fluid bed.
Embodiment
Such as Fig. 1 and Fig. 2, the pretreatment system of castoff high in containing water includes hydrolysis fluidizer, homogenization device and released
Press tower 5.
Homogenization device is used for the solid in organic waste by stirring, cutting or other modes are disperseed, and with
Water mixing is easy to follow-up processing into dirty pulpous state.
Described hydrolysis fluidizer, there is hydrolyzate outlet 1, ammonia outlet 2, dirty slurry entrance 3 and steam inlet 4, its
Middle dirty slurry entrance 3 is connected to lifting means, by the dirty slurry input of outside to hydrolysis fluidizer.In fluidizer is hydrolyzed, heat is steamed
The effect of vapour causes the nutrition in dirty slurry to be hydrolyzed into the materials such as polysaccharide, organic acid and peptide and enzyme.When protein is hydrolyzed, its
In nitrogen NH4 +It is broken down into unstable free ammonia HN3·H2O (hydration ammonia), effect of the unstable free ammonia in heat
Under, it is further changed to ammonia and is discharged by ammonia outlet 2.
The entrance of described release of pressure tower 5 is communicated by pipeline with hydrolyzate outlet 1, to receive hydrolysis fluidizer discharge
Hydrolyzate.Because hydrolyzate out has certain pressure, the release of pressure tower 5 can discharge the pressure in hydrolyzate, together
When play a part of temporary hydrolyzate, provide buffer time and maintenance time for subsequent technique.Specifically, the top of release of pressure tower 5
Portion is provided with a shower nozzle 52, and hydrolyzate is passed through in shower nozzle to spray into the inner chamber of release of pressure tower 5, and the hydrolyzate of release of pressure tower 5 is discharged from bottom.
It is further preferred that pretreatment system also includes ammonia crystallization apparatus 6.The ammonia outlet 2 of hydrolysis fluidizer passes through
Pipeline communication ammonia crystallization apparatus 6, valve is additionally provided with the pipeline, periodically to be discharged.Ammonia crystallization apparatus 6 to be container-like,
Injection sulfuric acid in it, ammonia and sulfuric acid reaction generation ammonium sulfate, its chemical equation are as follows：
2NH3+H2SO4→(NH4)2SO4。
It can be dried after being arranged outside the ammonium sulfate of generation, make fertilizer.
It is further preferred that release of pressure tower 5 is provided with gas vent 51 at top, the gas vent 51 of release of pressure tower 5 leads to ammonia knot
Brilliant device 6.The gas formed after hydrolyzate volatilization also contains ammonia, and solid-state is formed so as to together be discharged into ammonia crystallization apparatus 6.
It is further preferred that release of pressure tower 5 is provided with liquid outlet in bottom, liquid outlet is connected to discharging tube, and the discharging tube can
To be passed through and in collection vessel (not shown), and backflow part 7 is provided between collection vessel and homogenization device, for example is backflow
The hydrolyzate that release of pressure tower 5 is discharged is back to homogenization device by pump, backflow part 7, as dilution organic waste.
It is further preferred that homogenization device includes equal stock tank 8 and homogenate tank 9.The equal inside of stock tank 8 is provided with agitating paddle 81,
The outlet of stock tank 8 is provided with cutting pump 10, and the outlet of cutting pump 10 can also be back to while being provided with feed pump 11 by pipeline
Equal stock tank 8, the outlet of feed pump 11 connect homogenate tank 9 by pipeline, and the outlet of homogenate tank 9 connects hydrolysis fluidisation dress by pipeline
Put.Organic waste can mix with water in equal stock tank 8, is pre-mixed by agitating paddle, export afterwards and in cutting pump 10
Conveying and stirring after be homogenised for；In whipping process, organic waste circulates between equal stock tank 8 and cutting pump 10, organic
The impurity that discarded object is brought into is crushed under the repetition cutting of cutting pump 10；Agitated and cutting organic waste is diluted to dirt
The stirring cutting of continuous reflux cycle is starched in slurry, dirt, until equal stock tank 8 fills dirty after starching and stirring and terminate, dirt slurry starches feed pump through dirt
11 are pumped into homogenate tank 9.Agitator also is provided with homogenate tank 9, to keep the uniform of dirty slurry.
It is further preferred that the pipeline of connection homogenate tank 9 and dirty slurry entrance 3 is provided with feed pressure-producing part.Described confession
Expect that pressure-producing part can be by the input of dirt slurry to hydrolysis fluidizer, while suitable pressure is pressurized to dirt slurry so that dirt slurry, water
Solution fluidizer has suitable pressure value.Preferable feed pressure-producing part is high-pressure plunger pump 20.
It is further preferred that pretreatment system also includes heat exchanger 12.Heat exchanger 12 is plate type heat exchanger, and hydrolyzate is gone out
Mouth 1 connects the entrance of release of pressure tower 5, while the outlet dirt of homogenization device is starched into entrance 3.Dirty slurry into dirty slurry entrance 3 can be with
Heated using the heat in hydrolyzate, it is cost-effective so as to which the system rationally utilizes heat.
Description hydrolysis fluidizer below.
Hydrolysis fluidizer includes fluidized bed body 13, shell 15 and steam distributor 16.
The fluidized bed body 13 is that openning shape forms overfall 14 to be container-like, on its top, spill-over in fluidized bed body 13
Hydrolyzate can from overfall 14 to outside flow out.It is provided with the bottom of fluidized bed body 13 and lets out mud mouth, dirt slurry entrance 3 leads to stream
Change in bed body 13 and external feed pipe；The feed pipe, which is higher than, lets out the position of mud mouth but also close to the bottom of fluidized bed body 13.
Described steam distributor 16 is arranged on the bottom of fluidized bed body 13, and its steam injection direction is preferably upward and logical
Into fluidized bed body 13, the water vapour risen from the bottom to top is formed, steam distributor 16 is defeated by 4 external water vapour of steam inlet
Enter pipe 17, for the water vapour of high pressure-temperature to be imported inside fluidized bed body 13.
Described shell 15 is placed on the outside of fluidized bed body 13 and causes fluidized bed body 13 to be located at middle part, and the roof of shell 15 is with overflowing
In the height direction from a distance, the outer wall of shell 15 and the outer wall of fluidized bed body 13 are from a distance so as to forming for head piece 14
Spill cavity, the hydrolyzate flowed out from overfall 14 can enter in spill cavity.The bottom of shell 15 is additionally provided with the water for leading to spill cavity
Liquid outlet 1 is solved, for the hydrolyzate in spill cavity to be exported into shell 15.Ammonia outlet 2 is arranged on the top of shell 15 and connection is overflow
Chamber is flowed, caused ammonia discharge in hydrolyzing, ammonia outlet 2 is connected to drain valve 41, for controlling the discharge of ammonia.
The process that fluidisation is so hydrolyzed using the device is as follows：
Dirt slurry input fluidized bed body 13, now fluidized bed body 13 can be high in high temperature by way of heating pressurization in advance
Pressure condition, or can directly input HTHP dirty slurry in the fluidized bed body 13 of closing；The water vapour of high temperature passes through steaming
Vapour distributor 16 enters fluidized bed body 13 and dirt slurry is further heated up；The now organic matter meeting accelerated decomposition of dirty slurry, organic materialization
Key fracture is learned, the organic matter of long chain is become the organic matter of short molecular chain, partly is difficult to decompose in traditional anaerobic reactor
Material obtain very big raising by becoming biochemical material, the biodegradability of dirt slurry after fluidized bed body 13；Part is
Hydrolyzate through having decomposed can then cross fluidized bed body 13, and into spill cavity, undecomposed material, can be after because proportion is larger
It is continuous to stay in fluidized bed body 13 and decompose；Due to that can become containing ammonia in high-temperature high-pressure state, hydrolyzate partial organic substances and ammonia
Gas, these are discharged by ammonia outlet 2, and ammonia can drain into ammonia crystallization apparatus 6, be crystallized；Portion is had after operation a period of time
Indissoluble organic matter (cellulose etc.) and inorganic matter (fixed carbon, stone flour etc.) is divided to remain in fluidized bed body 13, in order to ensure
Hydrolysis effect, opened in certain production cycle and let out mud mouth progress spoil disposal.
Above-mentioned process can also be simply summarized as：Dirt slurry enters fluidized bed body 13, wherein lighter suspension is in temperature
Spend upward ascension under being promoted for high temperature and high pressure steam, and overflow fluidized bed body, flow direction lets out mud mouth positioned at bottom, granularity it is larger and
The material of weight declines again by steam flush and hydrolysis, so circulation along internal chamber wall；During dirt slurry rises with steam, steam
Vapour carries out heat exchange with dirty slurry, and condenses into water and be mixed into dirty slurry.
The principle of said process is as follows：Dirt is starched in the fluid mapper process of device due to being acted on by heating power, in dirt slurry
Nutrition is hydrolyzed into the materials such as polysaccharide, organic acid and peptide and enzyme.When protein is hydrolyzed, nitrogen NH therein4 +It is decomposed
Into unstable free ammonia HN3·H2O (hydration ammonia), unstable free ammonia under the action of heat, are further changed to ammonia and led to
Cross and be located at the air bleeding valve of tower top and periodically discharge, the related reaction equation of hydrolytic deaminzation is as follows：
1)、NH4 ++OH-→NH3·H2O
2)、NH3·H2O→NH3↑+H2O
Making hydrolysis of organic matter acidifying by pyrohydrolysis, high-temperature water vapor can be used as solid-state in this embodiment into hydrolyzate
Organic matter fluidizing gas and NH3Stripping gas, while be also hydrolysis temperature offer media.High-temperature water vapor is also high pressure,
To maintain the pressure in fluidized bed body 13,120~190 DEG C are warming up to the dirty slurry in fluidized bed body 13.
Above-mentioned heat exchanger 12 has interconnected cold import, heat outlet and interconnected hot import, cold outlet.
Wherein, homogenate tank 9 is led in the dirty slurry entrance 3 of the hot outlet of heat exchanger 12, cold import, and the hot import of heat exchanger 12 passes through pipeline
Hydrolyzate outlet 1 is connected, release of pressure tower 5 is led in cold outlet.
Above-mentioned high-pressure plunger pump 20 is used to after dirt slurry is forced into suitable pressure value input in fluidized bed body 13, makes stream
Change bed body 13 " default " pressure.
Dirt slurry is forced into 0.5~1.5Mpa by high-pressure plunger pump 20, subsequently into heat exchanger 12, after fluidizing pyrohydrolysis
Pyrohydrolysis liquid as thermal source, preheat dirty slurry to 100~150 DEG C；Carried out afterwards according to above-mentioned hydrolytic process；By hydrolysis
Hydrolyzate afterwards enters the row of heat exchanger 121 cooling (heat be used for preheat newly enter dirty slurry), temperature is down to outside 40~60 DEG C deliver to after
Continuous technique.
In above-mentioned implementation, with reference to above-mentioned reaction equation 2：NH4 ++OH-→NH3·H2O, the formula is reversible, in pH value
For in 4.5-5.8 sour environment, for hydrolysis temperature when declining, free ammonia, which can be reacted to ammonium again, rises hydrolyzate pH,
Such as formulas below 3：
3)、NH3·H2O→NH4 ++OH-
According to formula reaction equation 1), 2), 3) understand, dirt slurry in ammonium emission be can by adjust acid-base value realize, ammonia
Precipitation and dissolved oxygen amount (DO), the hydrolysis temperature of hydrolyzate it is closely related.Hydrogen-oxygen is so proportionally added into before booster plunger pump
Change effective control that sodium solution changes the acid-base value of dirty slurry and controls hydrolysis temperature that hydrolyzate ammonia nitrogen can be achieved, pH should be adjusted
To 5.8-6.8 faintly acid.
It is further preferred that the top of homogenate tank 9 is provided with the exhaust outlet 19 for leading to ammonia crystallization apparatus 6, to by homogenate tank 9
The gases such as the ammonia of volatilization are discharged.The bottom of homogenate tank 9 is provided with mud discharging mouth 18, and impurity, residue are discharged.Mud discharging mouth 18 is with letting out mud mouth
Being connected by discharge pipeline, the bottom ash of discharge can be transported outward, or for being dried to fertilizer.
Hydrolyzate BOD after above pretreatment system and technique synchronous with COD indexs will not decline, in hydrolyzate
TN and NH3It is changed into adjustable index etc. index, so as to greatly strengthen the biodegradability of organic waste.
The simply preferred embodiment of the present invention described above, it does not form limiting the scope of the invention.
Claims (10)
- A kind of 1. pretreatment system of castoff high in containing water, it is characterised in that including：Fluidizer is hydrolyzed, there is hydrolyzate outlet (1), ammonia outlet (2), dirty slurry entrance (3) and steam inlet (4)；Release of pressure tower (5), the entrance of release of pressure tower (5) communicate with hydrolyzate outlet (1)；Homogenization device, its output end connect dirty slurry entrance (3) by lifting means.
- 2. the pretreatment system of castoff high in containing water according to claim 1, it is characterised in that：Also include ammonia to crystallize Device (6), the ammonia outlet (2) pass through pipeline communication ammonia crystallization apparatus (6).
- 3. the pretreatment system of castoff high in containing water according to claim 2, it is characterised in that：The release of pressure tower (5) gas vent (51) is provided with, the gas vent (51) of release of pressure tower (5) leads to ammonia crystallization apparatus (6).
- 4. the pretreatment system of castoff high in containing water according to claim 2, it is characterised in that：The release of pressure tower (5) liquid outlet is provided with, backflow part (7) is provided between liquid outlet and homogenization device, backflow part (7) is by release of pressure tower (5) hydrolyzate of discharge is back to homogenization device.
- 5. the pretreatment system of castoff high in containing water according to claim 1, it is characterised in that：The homogenization device Including equal stock tank (8) and homogenate tank (9), the outlet of equal stock tank (8) is provided with cutting pump (10), and the outlet of cutting pump (10), which is provided with, to be given Expect pump (11), the outlet of feed pump (11) connects homogenate tank (9) by pipeline, and the outlet of homogenate tank (9) connects water by pipeline Solve fluidizer.
- 6. the pretreatment system of castoff high in containing water according to claim 5, it is characterised in that：Connect the homogenate Tank (9) and the pipeline of dirty slurry entrance (3) are provided with the feed pressure-producing part as lifting means.
- 7. the pretreatment system of castoff high in containing water according to claim 1, it is characterised in that：Also include heat exchanger (12), hydrolyzate is exported (1) connection release of pressure tower (5) entrance by the heat exchanger (12), heat exchanger (12) while by homogenization device The dirty slurry entrance (3) of outlet.
- 8. the pretreatment system of castoff high in containing water according to any one of claim 1 to 7, it is characterised in that： The hydrolysis fluidizer includes,Fluidized bed body (13), top are provided with overfall (14), and bottom, which is provided with, lets out mud mouth, and dirt slurry entrance (3) leads to fluidized bed body (13) in；The outside shell (15) of fluidized bed body (13) is placed on, spill cavity, ammonia are formed between shell (15) and fluidized bed body (13) Outlet (2) is located at shell (15) top and connection spill cavity, hydrolyzate outlet (1) and is arranged at shell (15) bottom and leads to overflow Chamber；And the steam distributor (16) of fluidized bed body (13) bottom is arranged on, steam distributor (16) passes through steam inlet (4) External water vapour input pipe (17).
- 9. the pretreatment system of castoff high in containing water according to claim 8, it is characterised in that：The distribution of steam The steam injection direction of device (16) is upward.
- 10. the pretreatment system of castoff high in containing water according to claim 8, it is characterised in that：The homogenate dress The exhaust outlet (19) for leading to ammonia crystallization apparatus (6) is installed, homogenization device bottom is provided with mud discharging mouth (18), and mud discharging mouth (18) is with letting out Mud mouth is connected by discharge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828373.1A CN107473565A (en) | 2017-09-14 | 2017-09-14 | A kind of pretreatment system of castoff high in containing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828373.1A CN107473565A (en) | 2017-09-14 | 2017-09-14 | A kind of pretreatment system of castoff high in containing water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107473565A true CN107473565A (en) | 2017-12-15 |
Family
ID=60584047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710828373.1A Pending CN107473565A (en) | 2017-09-14 | 2017-09-14 | A kind of pretreatment system of castoff high in containing water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107473565A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687720A (en) * | 2007-02-16 | 2010-03-31 | 维塔格公司 | Be used to the method handling mud and produce the mineral manure of biological organic enhanced high nitrogen-containing |
| CN101693149A (en) * | 2000-08-03 | 2010-04-14 | 英尼奥斯欧洲有限公司 | Method and device for separation of organic substances from a gas mixture |
| CN101913926A (en) * | 2000-08-22 | 2010-12-15 | Gfe专利股份公司 | The scheme of slurry separation and biogas production |
| CN102838264A (en) * | 2012-02-27 | 2012-12-26 | 四川深蓝环保科技股份有限公司 | Process and apparatus for treating biomass |
| WO2014182068A1 (en) * | 2013-05-08 | 2014-11-13 | 타가세죠지 | Apparatus for drying high water content organic waste, method for manufacturing solid fuel of high water content organic waste using same, and preprocessing method for energizing high water content organic waste |
| CN106010662A (en) * | 2016-06-08 | 2016-10-12 | 湖南大学 | Two-step organic waste treatment system and method based on supercritical/subcritical water technology |
| CN106518183A (en) * | 2016-11-07 | 2017-03-22 | 江苏理工学院 | Method for preparation of organic fertilizer from organic solid waste |
| CN106890567A (en) * | 2017-04-06 | 2017-06-27 | 北京烨晶科技有限公司 | The decomposition of a kind of fluidized bed type urea and its derivative and denitrating system and technique |
| CN207227262U (en) * | 2017-09-14 | 2018-04-13 | 广州沼能环保科技有限责任公司 | A kind of pretreatment system of castoff high in containing water |
-
2017
- 2017-09-14 CN CN201710828373.1A patent/CN107473565A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693149A (en) * | 2000-08-03 | 2010-04-14 | 英尼奥斯欧洲有限公司 | Method and device for separation of organic substances from a gas mixture |
| CN101913926A (en) * | 2000-08-22 | 2010-12-15 | Gfe专利股份公司 | The scheme of slurry separation and biogas production |
| CN101687720A (en) * | 2007-02-16 | 2010-03-31 | 维塔格公司 | Be used to the method handling mud and produce the mineral manure of biological organic enhanced high nitrogen-containing |
| CN102838264A (en) * | 2012-02-27 | 2012-12-26 | 四川深蓝环保科技股份有限公司 | Process and apparatus for treating biomass |
| WO2014182068A1 (en) * | 2013-05-08 | 2014-11-13 | 타가세죠지 | Apparatus for drying high water content organic waste, method for manufacturing solid fuel of high water content organic waste using same, and preprocessing method for energizing high water content organic waste |
| CN106010662A (en) * | 2016-06-08 | 2016-10-12 | 湖南大学 | Two-step organic waste treatment system and method based on supercritical/subcritical water technology |
| CN106518183A (en) * | 2016-11-07 | 2017-03-22 | 江苏理工学院 | Method for preparation of organic fertilizer from organic solid waste |
| CN106890567A (en) * | 2017-04-06 | 2017-06-27 | 北京烨晶科技有限公司 | The decomposition of a kind of fluidized bed type urea and its derivative and denitrating system and technique |
| CN207227262U (en) * | 2017-09-14 | 2018-04-13 | 广州沼能环保科技有限责任公司 | A kind of pretreatment system of castoff high in containing water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6487920B2 (en) | Method and apparatus for continuous thermal hydrolysis utilizing recycle of recovered steam | |
| CN207227262U (en) | A kind of pretreatment system of castoff high in containing water | |
| CN104404087B (en) | A kind of process and its fermentation system that biological flue gas is produced using high concentration organic waste | |
| CN106145587A (en) | Recycling system after a kind of cattle manure reprocessing | |
| CN110117148A (en) | A kind of the low temperature thermokalite digestion procedure and its reaction unit of sewage plant biochemical sludge | |
| CN106008383B (en) | The system and method for cyanuric acid crude product is continuously prepared using urea | |
| CN207222550U (en) | The hydrolysis fluidization treatment device of castoff high in containing water | |
| CN109867428A (en) | A kind of method of sludge dual treatment disposition | |
| CN2825645Y (en) | Combined tank type marsh gas and marsh liquid generator | |
| CN207227236U (en) | A kind of high temeperature chemistry environmental protection anaerobic system | |
| CN107473565A (en) | A kind of pretreatment system of castoff high in containing water | |
| CN207227237U (en) | A kind of high temeperature chemistry anaerobic system | |
| CN107497832A (en) | The hydrolysis fluidization treatment device and processing method of castoff high in containing water | |
| CN107500379A (en) | A kind of preprocess method of castoff high in containing water | |
| CN203196530U (en) | SCR flue gas denitration device denitrating flue gas by utilization of urea | |
| CN108423953A (en) | Recovery of nitrogen and phosphorus system and method in a kind of municipal sludge based on supercritical technology | |
| CN204569918U (en) | A kind of high density anaerobic fermentation system | |
| CN104787999A (en) | Device and method for treating intensive pig farm feces | |
| CN107055986A (en) | A kind of high-pressure microwave sludge pre-treatment method | |
| CN205907158U (en) | Mud waste liquid pyrohydrolysis equipment | |
| CN204897675U (en) | Mud serialization resourceful treatment device | |
| CN205115313U (en) | Quick curing treatment facility of anaerobism natural pond sediment | |
| CN107417051A (en) | A kind of high temeperature chemistry anaerobic system | |
| CN106698870A (en) | Continuous recycling treatment process of sludge | |
| CN210122486U (en) | Ammonification reaction raw material recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |