CN109704529A - A kind of sludge hot hydrolysis device - Google Patents
A kind of sludge hot hydrolysis device Download PDFInfo
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- CN109704529A CN109704529A CN201910153096.8A CN201910153096A CN109704529A CN 109704529 A CN109704529 A CN 109704529A CN 201910153096 A CN201910153096 A CN 201910153096A CN 109704529 A CN109704529 A CN 109704529A
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- sludge
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- pyrohydrolysis
- pyrohydrolysis tank
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Abstract
The invention discloses a kind of sludge hot hydrolysis devices, including pyrohydrolysis tank ontology, sludge import, sludge outlet, steam bleed outlet, and several steam branch pipes, by circumferentially uniformly installing several steam branch pipes in pyrohydrolysis tank body lower part, the steam in vapour source is shunted side by side in access pyrohydrolysis tank ontology by multiple steam branch pipes, to make the intrinsic sludge agitation mixing of pyrohydrolysis tank more evenly, temperature is also more evenly, simultaneously, steam bleed outlet is additionally provided on its pyrohydrolysis tank ontology, steam bleed outlet external connection pipeline is to slurry apparatus, pressure release steam stream is returned into slurry apparatus, realize the recycling of pressure release steam, improve the capacity usage ratio of system entirety.
Description
Technical field
The invention belongs to technical field of sludge treatment, in particular to a kind of sludge hot hydrolysis device.
Background technique
China has promulgated " urban sewage treatment plant sludge handles disposal technology guide (tentative) " for 2011, wherein for dirt
The technical treatment of remaining sludge has related introduction after water process: hydrothermal technology is to heat sludge, in certain temperature and pressure
Make the sticky hydrolysis of organic matter in sludge under power, destroy sludge organic colloid structure, reequips dewatering and anaerobic digestion performance
Technology, also referred to as hot modulation.Sludge hot technology for hydrolyzing is that a kind of sludge reduction degree is high, reliable and stable, innoxious, recycling
With the sludge treatment technique of environmental protection, from being considered as key link in sludge treatment technique on technical standpoint.
Sludge pyrohydrolysis is to heat sludge, and under certain temperature and pressure water can occur for the sticky organic matter in sludge
Solution, microorganism wadding body disintegrate, microbial cell breakage, and the organic substance (protein, fat, carbohydrate etc.) in cell is released
It releases, the physical and chemical performance meeting corresponding change of sludge, anaerobic digestion performance is improved, and methane production is increased.Sludge pyrohydrolysis
Process can promote the release of internal water in sludge, surface water and Interstitial Water, significantly improve the dewatering of sludge, thus further
Efficiently reduce the moisture content of mud cake obtained by subsequent sludge dewatering treatment.
Existing sludge hot hydrolysis device is stirred using in vapor collection into tank body, then by the blender with tank interior together
Sludge is mixed, there are problems that stirring is uneven and the degree that improves that the device is complicated.
Summary of the invention
The object of the present invention is to provide a kind of sludge hot hydrolysis device, pyrohydrolysis tank body interior does not need installation stirring
Device can solve the problems such as stirring is uneven and the device is complicated.
To solve the above problems, the technical solution of the present invention is as follows:
A kind of sludge hot hydrolysis device, comprising:
Pyrohydrolysis tank ontology, including pressure-bearing tank body, the pyrohydrolysis tank body lower part circumferentially arranged with several steam into
Mouthful；
Sludge import, positioned at the upper end of the pyrohydrolysis tank ontology, for sludge to be added；
Sludge outlet, positioned at the lower end of the pyrohydrolysis tank ontology, for the sludge after pyrohydrolysis to be discharged；
Steam bleed outlet is located on the pyrohydrolysis tank ontology, for discharging the gas of the pyrohydrolysis tank body interior；
Several steam branch pipes, the input terminals of several steam branch pipes connect vapour source, the steam branch pipe it is defeated
Outlet is protruded into the pyrohydrolysis tank ontology by the steam inlet, high for conveying high temperature into the pyrohydrolysis tank ontology
Steam is pressed, the intrinsic sludge of the pyrohydrolysis tank is subjected to heating stirring.
It preferably, further include the steam jacket being looped around on the pyrohydrolysis tank ontology, the steam jacket is equipped with one
A total vapor interface and several steam branch pipe connectors, total vapor interface connect the vapour source, the steam branch pipe
Connector is connect with the input terminal of the steam branch pipe, and the high temperature and high pressure steam for providing the vapour source shunts defeated side by side
It is sent in several steam branch pipes.
Preferably, the vapour pressure force value that the vapour source provides is 0.4MPa~0.7Mpa.
Preferably, the pyrohydrolysis tank ontology is vertical and cylindrical.
Preferably, the pyrohydrolysis tank ontology is equipped with several functional interfaces.
Preferably, the functional interface includes inert gas discharge outlet, relief valve port and standby functions mouth.
Preferably, the pyrohydrolysis tank ontology is equipped with process interface, for detecting the intrinsic temperature of pyrohydrolysis tank
Degree, pressure and liquid level index.
Preferably, the quantity of the steam branch pipe is 8.
The present invention due to using the technology described above, makes it have the following advantages that and actively imitate compared with prior art
Fruit:
1) a kind of sludge hot hydrolysis device provided by the invention, by circumferentially uniformly being installed in pyrohydrolysis tank body lower part
Several steam branch pipes are shunted the steam in vapour source in access pyrohydrolysis tank ontology by multiple steam branch pipes side by side, from
And making the mixing of pyrohydrolysis tank intrinsic sludge agitation more evenly, temperature is also more evenly.
2) a kind of sludge hot hydrolysis device provided by the invention is additionally provided with steam bleed outlet on pyrohydrolysis tank ontology, steams
Pressure release steam stream time slurry apparatus is realized the recycling of pressure release steam to slurry apparatus by vapour bleed outlet external connection pipeline,
Improve the capacity usage ratio of system entirety.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of sludge hot hydrolysis device；
Description of symbols:
1: steam bleed outlet；2: sludge import；3: functional interface；4: pyrohydrolysis tank ontology；5: steam jacket；41: pressure-bearing
Tank body；42: manhole；6: sludge outlet；7: skirt；8: steam branch pipe；9: process interface.
Specific embodiment
It is further detailed to a kind of sludge hot hydrolysis device work proposed by the present invention below in conjunction with the drawings and specific embodiments
Explanation.According to following explanation and claims, advantages and features of the invention will be become apparent from.
Referring to Fig. 1, the present invention provides a kind of sludge hot hydrolysis device, including pyrohydrolysis tank ontology 4, pyrohydrolysis tank ontologies
4 include pressure-bearing tank body 41, and 4 lower part of pyrohydrolysis tank ontology is circumferentially arranged with several steam inlets；Sludge import 2 is located at hot water
The upper end for solving tank ontology 4, for sludge to be added；Sludge outlet 6, positioned at the lower end of pyrohydrolysis tank ontology 4, for being discharged through hot water
Sludge after solution；Steam bleed outlet 1 is located on pyrohydrolysis tank ontology 4, for discharging the gas inside pyrohydrolysis tank ontology 4, when
When sludge hot hydrolysis device is in heating and packing stage, steam bleed outlet 1 is in close state, at sludge hot hydrolysis device
When the discharge stage, steam bleed outlet 1 is in the open state；Several steam branch pipes 8, the input terminal of several steam branch pipes 8
Vapour source is connected, the output end of steam branch pipe 8 is protruded into pyrohydrolysis tank ontology 4 by steam inlet, is used for pyrohydrolysis tank sheet
High temperature and high pressure steam is conveyed in body 4, and the sludge in pyrohydrolysis tank ontology 4 is subjected to heating stirring.
In the present embodiment, pyrohydrolysis tank ontology 4 is vertical cylinder shape, and spatially compact layout may be implemented, and is operated
More floor space expansion are maintained in, project occupation of land area from top to bottom, is saved in process flow direction.Due to needing to pyrohydrolysis tank
Ontology 4 is passed through high temperature and high pressure steam and carries out pyrohydrolysis to sludge, so pyrohydrolysis tank ontology 4 is by pressure-bearing tank body 41 and steel pressure
Container is welded with end socket, and the material of pyrohydrolysis tank ontology 4 uses SUS31668, and the design pressure of pressure-bearing tank body 41 is
1.1MPa, operating pressure≤1.0Mpa belong to I type III pressure vessel.
The top of pyrohydrolysis tank ontology 4 is equipped with sludge import 2, for passing through sludge screw pump into pyrohydrolysis tank ontology 4
Sludge of the injection by pulp processing；It is equipped with sludge outlet 6 in the bottom of pyrohydrolysis tank ontology 4, is discharged by spoil disposal screw pump
Sludge after pyrohydrolysis is simultaneously sent to next link.
Several functional interfaces 3 are additionally provided on pyrohydrolysis tank ontology 4, functional interface 3 can be located at the top of pyrohydrolysis tank ontology 4
Portion, to connect various pipelines.Functional interface 3 includes inert gas discharge outlet, and pyrohydrolysis tank ontology 4 is being carried out sludge hot water
The inert gas generated during solution introduces system. Inert gas main by the pipeline that inert gas discharge outlet connects, with
Just centralized collection inert gas, then handled；Functional interface 3 further includes relief valve port, to guarantee entire pyrohydrolysis device
Safety work when carrying out sludge hydrolytic；In addition, functional interface 3 may also include standby functions mouth.
Pyrohydrolysis tank ontology 4 is equipped with process interface 9, and process interface 3 can be located at the upper end of pyrohydrolysis tank ontology 4, so as to
Multiple indexs such as hydrolysis temperature, pressure and liquid level in pyrohydrolysis tank ontology 4 are measured and monitored, process interface 9 is set
Set the floor design combined in 4 height of pyrohydrolysis tank ontology, each interface and its control valve are all in being easily installed operation and dimension
The position of shield, it is ensured that pipeline cabling is smooth.
It is additionally provided with steam bleed outlet 1 on pyrohydrolysis tank ontology 4, positioned at the top of pyrohydrolysis tank ontology 4, sludge import 2
Centre at the top of pyrohydrolysis tank ontology 4, steam bleed outlet 1 and functional interface 3 are located at the two sides of sludge import 2, and steam is released
Mouth 1 is for discharging the gas inside pyrohydrolysis tank ontology 4, when sludge hot hydrolysis device is in heating and packing stage, steam
Bleed outlet 1 is in close state, and when sludge hot hydrolysis device is in the discharge stage, steam bleed outlet 1 is in the open state.?
In the present embodiment, 1 external pipe of steam bleed outlet, the output end of pipeline is connect with slurry apparatus, and pyrohydrolysis tank ontology 4 is discharged
High-temperature steam be supplied to slurry apparatus and carry out sludge preheating, the utilization again of high-temperature steam is realized, in the present embodiment, in steam
Pressure relieving valve is equipped on the output end of bleed outlet 1 again, for controlling the open and close of steam bleed outlet 1, when sludge pyrohydrolysis fills
When setting in heating and packing stage, pressure relieving valve is in close state, when sludge hot hydrolysis device is in the discharge stage, discharge
Valve is in the open state, and the high temperature and high pressure steam in pyrohydrolysis tank ontology 4 is flowed to slurry apparatus and carries out sludge preheating, until heat
Air pressure in hydrolytic decomposition pot ontology 4 is close to atmospheric pressure.
This sludge hot hydrolysis device further includes several steam branch pipes 8, on the sustained height of the lower part of pyrohydrolysis tank ontology 4
Several steam inlets circumferentially are equipped with by equal subangle, the input terminal of steam branch pipe 8 connects vapour source, the steaming that vapour source provides
Steam pressure is 0.4MPa~0.7Mpa, and the output end of steam branch pipe 8 is protruded into pyrohydrolysis tank ontology 4 by steam inlet, is used for
High temperature and high pressure steam is conveyed into pyrohydrolysis tank ontology 4, the sludge in pyrohydrolysis tank ontology 4 is subjected to heating stirring.In this reality
Apply in example, further include the steam jacket 5 being looped around on pyrohydrolysis tank ontology 4, steam jacket 5 be equipped with a total vapor interface with
Several steam branch pipe connectors, total vapor interface connect vapour source, the input terminal company of steam branch pipe connector and steam branch pipe 8
Connect, the high temperature and high pressure steam that vapour source provides shunted side by side and is delivered in pyrohydrolysis tank ontology 4, reach steam uniform stirring and
The purpose of steam heating sludge.In the present embodiment, this sludge hot hydrolysis device includes eight steam branch pipes 8, eight steam branch pipes 8
In equal subangle insertion pyrohydrolysis tank ontology 4, specific implementation can also be greater than eight or can be to depend on heat less than eight
The diameter of hydrolytic decomposition pot ontology 4.
It is additionally provided with manhole 42 on pyrohydrolysis tank ontology 4, provides personnel's maintenance channel, the present embodiment for pyrohydrolysis tank ontology 4
In, lid hubbed clip-on-welding flange manhole is vertically hung using chemical industry proposed standard.
This sludge hot hydrolysis device bottom is additionally provided with skirt 7, is used to support pyrohydrolysis tank ontology 4, skirt 7 can and hot water
Solution tank ontology 4 is detachably connected, and connection can also be welded and fixed with pyrohydrolysis tank ontology 4.
This sludge hot hydrolysis device includes into five mud, heating, pressure maintaining, discharge and spoil disposal steps, a complete job
Period is 90min, wherein heating 15 minutes, pressure maintaining 30 minutes, discharge 15 minutes, spoil disposal 15 minutes into mud 15 minutes.Sludge hot
Hydrolysis device, which is injected sludge in pyrohydrolysis tank ontology 4 from sludge import 2 by sludge screw pump, carries out sludge hydrolytic, closes and steams
Vapour bleed outlet 1, while eight steam branch pipes 8 start to spray into high temperature and high pressure steam into pyrohydrolysis tank ontology 4, add to sludge
Thermal agitation carries out pressure maintaining after hydrolyzing sufficiently, after pressure maintaining is abundant, opens steam bleed outlet 1 and carries out discharge, until pyrohydrolysis tank ontology
Air pressure in 4 is close to atmospheric pressure.Then the sludge again completed pyrohydrolysis by spoil disposal screw pump is from positioned at pyrohydrolysis tank ontology 4
The discharge of sludge outlet 9 of bottom is sent to next link.
Steam in vapour source is shunted access pyrohydrolysis by several steam branch pipes 8 by this sludge hot hydrolysis device side by side
In tank ontology 4, to make sludge agitation mixing more evenly, temperature is also more evenly；In addition, pass through steam bleed outlet in the present invention,
Pressure release steam stream is returned into slurry apparatus, the recycling of pressure release steam is realized, improves the capacity usage ratio of system entirety；This hair
The sludge hot hydrolysis device of bright offer can arrange six sludge by each step of reasonable arrangement for an independent equipment simultaneously
Pyrohydrolysis device is run in turn according to the timing of regulation, the coordinated operation of six sludge hot hydrolysis devices, to realize uninterrupted
Continuous operation.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode.Even if to the present invention, various changes can be made, if these variations belong to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then still fall within the protection scope of the present invention.
Claims (8)
1. a kind of sludge hot hydrolysis device characterized by comprising
Pyrohydrolysis tank ontology, including pressure-bearing tank body, the pyrohydrolysis tank body lower part is circumferentially arranged with several steam inlets；
Sludge import, positioned at the upper end of the pyrohydrolysis tank ontology, for sludge to be added；
Sludge outlet, positioned at the lower end of the pyrohydrolysis tank ontology, for the sludge after pyrohydrolysis to be discharged；
Steam bleed outlet is located on the pyrohydrolysis tank ontology, for discharging the gas of the pyrohydrolysis tank body interior；
The input terminal of several steam branch pipes, several steam branch pipes connects vapour source, the output end of the steam branch pipe
It is protruded into the pyrohydrolysis tank ontology by the steam inlet, is steamed for conveying high temperature and pressure into the pyrohydrolysis tank ontology
The intrinsic sludge of the pyrohydrolysis tank is carried out heating stirring by vapour.
2. sludge hot hydrolysis device according to claim 1, which is characterized in that further include being looped around the pyrohydrolysis tank sheet
Steam jacket on body, the steam jacket is equipped with a total vapor interface and several steam branch pipe connectors, described total
Vapor interface connects the vapour source, and the steam branch pipe connector is connect with the input terminal of the steam branch pipe, is used for institute
The high temperature and high pressure steam for stating vapour source offer shunts side by side to be transported in several steam branch pipes.
3. sludge hot hydrolysis device according to claim 1, which is characterized in that the vapour pressure force value that the vapour source provides
For 0.4MPa~0.7Mpa.
4. sludge hot hydrolysis device according to claim 1, which is characterized in that the pyrohydrolysis tank ontology is vertical cylinder
Shape.
5. sludge hot hydrolysis device according to claim 1, which is characterized in that the pyrohydrolysis tank ontology is equipped with several
A functional interface.
6. sludge hot hydrolysis device according to claim 5, which is characterized in that the functional interface includes inert gas row
Put mouth, relief valve port and standby functions mouth.
7. sludge hot hydrolysis device according to claim 1, which is characterized in that the pyrohydrolysis tank ontology is equipped with technique
Interface, for detecting the intrinsic temperature of the pyrohydrolysis tank, pressure and liquid level index.
8. sludge hot hydrolysis device according to any one of claims 1 to 7, which is characterized in that the number of the steam branch pipe
Amount is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153096.8A CN109704529A (en) | 2019-02-28 | 2019-02-28 | A kind of sludge hot hydrolysis device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153096.8A CN109704529A (en) | 2019-02-28 | 2019-02-28 | A kind of sludge hot hydrolysis device |
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| Publication Number | Publication Date |
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| CN109704529A true CN109704529A (en) | 2019-05-03 |
Family
ID=66266055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910153096.8A Pending CN109704529A (en) | 2019-02-28 | 2019-02-28 | A kind of sludge hot hydrolysis device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127985A (en) * | 2019-06-05 | 2019-08-16 | 河南省四通锅炉有限公司 | One kind being used for the pretreated reaction unit of sludge pyrohydrolysis and method |
| CN111018292A (en) * | 2019-12-27 | 2020-04-17 | 湖南军信环保股份有限公司 | Vertical agitator tank of mud heating pulpifying |
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| CN105347637A (en) * | 2015-12-14 | 2016-02-24 | 北京洁绿科技发展有限公司 | Continuous sludge pyrohydrolysis system and method |
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Patent Citations (6)
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| CN102557384A (en) * | 2011-12-28 | 2012-07-11 | 北京科力丹迪技术开发有限责任公司 | Sludge hydrothermal drying treatment device and slurry reactor thereof |
| JP2014221443A (en) * | 2013-05-13 | 2014-11-27 | 三菱化工機株式会社 | Organic waste treatment apparatus |
| CN104514170A (en) * | 2014-12-25 | 2015-04-15 | 重庆新派工业设计有限公司 | Presteaming device |
| CN105347637A (en) * | 2015-12-14 | 2016-02-24 | 北京洁绿科技发展有限公司 | Continuous sludge pyrohydrolysis system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110127985A (en) * | 2019-06-05 | 2019-08-16 | 河南省四通锅炉有限公司 | One kind being used for the pretreated reaction unit of sludge pyrohydrolysis and method |
| CN111018292A (en) * | 2019-12-27 | 2020-04-17 | 湖南军信环保股份有限公司 | Vertical agitator tank of mud heating pulpifying |
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