CN209143989U - A kind of steam pyrolysis device of sludge - Google Patents
A kind of steam pyrolysis device of sludge Download PDFInfo
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- CN209143989U CN209143989U CN201821466685.9U CN201821466685U CN209143989U CN 209143989 U CN209143989 U CN 209143989U CN 201821466685 U CN201821466685 U CN 201821466685U CN 209143989 U CN209143989 U CN 209143989U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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Abstract
The utility model discloses a kind of steam pyrolysis device of sludge, which includes passing through the sequentially connected softening water heater 1 of pipeline, mud vapour hybrid heater 2, pyrolytic reaction tank 3 and heat recovery heat exchanger 4；Heat recovery heat exchanger 4, softening water heater 1 and the mud vapour hybrid heater 2 constitutes a set of special pyrolysis sludge stoste, it as the recycling of the waste heat of heat transferring medium and is utilized using softened water, and with steam direct heating and pyrolysis device of sludge, do not generate fouling, heat transfer efficiency is high, and energy-saving effect is up to 83% or more.
Description
Technical field
The utility model relates to biochemical excess sludge stoste (referred to as: sludge) pyrolysis processing technologies, more particularly to one kind
Steam pyrolysis device of sludge.
Background technique
Nineteen thirty-nine Englishman Hallifax utilizes pyrolyzing sludge technique, builds up seat of honour sludge hot treatment plant in Britain, due to
Energy consumption is high, and fuel cost is high, is not promoted the use so far.
Municipal sewage plant, China about handles 600 billion cubic meter sewage every year, and it is biochemical remaining dirty to generate 3.6 hundred million sides/year
Mud (being in terms of 98% by moisture content) left and right.The minimizing processing of sewage plant sludge includes reduction and the sludge quality of sludge volume
It reduces.The reduction of sludge volume generally uses the technologies such as sludge condensation, dehydration, desiccation.The reduction of sludge quality generally uses dirt
The technologies such as mud digestion, burial biodegradation, sludge incineration.These technical equipment are huge, take up an area more, investment height, discharge pernicious gas pair
Environment impacts.
Chinese patent (105174678A) Invention Announce is a kind of " domestic sludge pyrolysis processing technique ", is related to sludge through dirt
After dredge pump is sent into dehydrator dehydration；Elevator is sent to pyrolysis oven；The high-temperature flue gas generated into heat blower burning, then
Purified system isolates tar and saturation water-gas；Sludge carbon is by the cooling outlet of circulation saturation water-gas.
Chinese patent (103466912A) Invention Announce is a kind of " pyrolyzing sludge technique and device ", is related to sludge through filters pressing
And sludge briquetting processed；Sludge briquetting is through prebake in residual heat drying furnace, using low temperature distillation technology, carries out innoxious place to sludge
Reason.
In above-mentioned publication document, sludge will pass through dewatered drying, and in actual use, there are energy consumption height, and
The problems such as complex technical process.
Authorized utility model " a kind of energy-efficient pyrolyzing sludge device " before the applicant, Authorization Notice No.:
CN207451900U is pyrolyzed (including: hydrolysis, degradation and decomposition) device to biochemical sludge stoste；It is substituted using softened water dirty
Mud enters pre- recuperation of heat heat exchanger shell pass recovery waste heat, enters back into the shell side heating sludge of softening water- to-water heat exchanger, solves heat exchange
What is flowed in device shell side is all softened water, not into mud, heat exchanger shell pass is avoided to cause deposition blockage problem into mud.
Above-mentioned utility model sludge is flowed in heat exchanger tube pass with high flow rate, and sludge is in suspended state, can avoid sludge
It causes deposition to block in pipe, while can be relieved sludge in tube side encrustation, but the scale problems of tube side inner wall can not be prevented.
Observed according to testing ground: discovery still results in heater in the sludge that hotline heater tube side inner wall flows
The scale problems of tube side inside pipe wall；The thermally conductive oil temperature of the especially tube side outer wall of hotline heater is higher, inside pipe wall fouling
Problem is more serious；The heating temperature difference is bigger between tube side outer wall and inner wall, and tube side encrustation is also more serious.When import sludge is average
20 degree of temperature, by softening the heating of water heater and hotline heater tube side, temperature is increased to the pyrolysis of 175-180 degree
Temperature can be divided into three temperature rise periods.The leading portion for softening pipe of water heater journey is low-temperature zone, and back segment is middle-temperature section, conduction oil
The tube side of heater is high temperature section；In the basic non-scaling of the heater of low-temperature zone, the slight fouling of heater of middle-temperature section, high temperature section
Heater, that is, hotline heater fouling is than more serious.The scale problems of high temperature section heater tube side inside pipe wall must be solved,
The continuous and stable production of heater can be maintained to work.
Utility model content
The purpose of this utility model is that existing sludge high temperature pyrolysis (including hydrolysis, degradation and decomposition) skill is continuously improved
Shortcoming in art and a kind of steam pyrolysis device of sludge is provided, directly handle the sludge stoste of moisture content 97% -99%.
The purpose of this utility model is realized by following equipment scheme:
A kind of steam pyrolysis device of sludge, including softening water heater, mud vapour hybrid heater, pyrolytic reaction tank, waste heat
Recycle heat exchanger, softened water equipment and vapour system；
The tube side import of the softening water heater is connect by pipeline with sludge import, the outlet of softening pipe of water heater journey
It is connect by pipeline with the import of the mud vapour hybrid heater；
The outlet of the mud vapour hybrid heater is connected by pipeline with the upper inlet of the pyrolytic reaction tank；
The lower part outlet of the pyrolytic reaction tank passes through the top tube side import phase of pipeline and the heat recovery heat exchanger
Even, the heat recovery heat exchanger tube side sludge outlet is connected by pipeline with downstream sludge treatment device；
The outlet of the softened water equipment is connected by pipeline with the shell side import of heat recovery heat exchanger, and waste heat recycling is changed
The shell-side outlet of hot device is connected by pipeline with the shell side import of the softening water heater；Soften the shell-side outlet of water heater
It is connected by pipeline with softened water equipment outlet；
The outlet of the vapour system is connected by pipeline with the lateral import of casing of mud vapour hybrid heater, vapour system
Import be connected with the lateral softening water out of softened water equipment by pipeline；
The mud vapour hybrid heater, the Novel steam direct heater being made of casing and inner tube, casing and inner tube
Between form an annular steam collet, inner tube at steam jacket arranges an appropriate number of inclined hole, for the steam in collet
It sprays by inclined hole and is mixed with the sludge of inner tube, gone out after sludge is directly heated 175-180 DEG C from mud vapour hybrid heater
Mouth outflow, does not generate fouling；Heat transfer efficiency is high, and energy-saving effect is up to 83% or more.
The softened water equipment is made of water softener, water softener tank, softened water feed pump, softening water-circulating pump etc., utilizes
Na-ion exchanger removes the scale-forming ions such as calcium, the magnesium in water removal.
The vapour system by feed pump, steam generator and divides the equipment such as drum to form, or directly utilizes neighbouring plant area
Medium pressure steam system as steam heat source, pass through mud vapour hybrid heater and spray into steam direct heating and be pyrolyzed sludge.
The utility model has the beneficial effects that
The device include by the sequentially connected softening water heater of pipeline, mud vapour hybrid heater, pyrolytic reaction tank and
Heat recovery heat exchanger；Heat recovery heat exchanger, softening water heater and the mud vapour hybrid heater constitutes a set of special
It is pyrolyzed sludge stoste, recycles and utilizes using softened water as the waste heat of heat transferring medium, while being pyrolyzed in a manner of steam direct heating
Sludge, does not generate fouling, and heat transfer efficiency is high, and energy-saving effect is up to 83% or more.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1 softening water heater, 2 mud vapour hybrid heaters, 3 pyrolytic reaction tanks, 4 heat recovery heat exchangers, 5 softenings
Wetting system, 6 vapour systems.
Specific embodiment
As shown in Fig. 1, a kind of steam pyrolysis device of sludge of the utility model, including softening water heater 1, mud vapour are mixed
Close heater 2, pyrolytic reaction tank 3, heat recovery heat exchanger 4, softened water equipment 5 and vapour system 6.
The steam pyrolysis device of sludge: its sludge import by pipeline and it is described softening water heater 1 tube side into
Mouth connection, the outlet of softening 1 tube side of water heater are connected by pipeline with the import of the mud vapour hybrid heater 2；
The outlet of the mud vapour hybrid heater 2 is connected by pipeline with the upper inlet of the pyrolytic reaction tank 3；
The lower part outlet of the pyrolytic reaction tank 3 passes through the top tube side import of pipeline and the heat recovery heat exchanger 4
It is connected, the 4 tube side sludge outlet of heat recovery heat exchanger is connected by pipeline with downstream sludge treatment device；
The outlet of the softened water equipment 5 is connected by pipeline with the shell side import of heat recovery heat exchanger 4, waste heat recycling
The shell-side outlet of heat exchanger 4 is connected by pipeline with the shell side import of the softening water heater 1；Soften the shell of water heater 1
Journey outlet is connected by pipeline with the outlet of softened water equipment 5；
The outlet of the vapour system 6 is connected by pipeline with the lateral import of casing of mud vapour hybrid heater 2, steam system
The import of system 6 is connected by pipeline with the lateral softening water out of softened water equipment 5；
The mud vapour hybrid heater 2, the Novel steam direct heater being made of casing and inner tube, casing and inner tube
Between form an annular steam collet, inner tube at steam jacket arranges an appropriate number of inclined hole, for the steam in collet
It sprays by inclined hole and is mixed with the sludge of inner tube, gone out after sludge is directly heated 175-180 DEG C from mud vapour hybrid heater
Mouth outflow, does not generate fouling, and heat transfer efficiency is high.
The softened water equipment 5 is made of water softener, water softener tank, softened water feed pump, softening water-circulating pump etc..Benefit
The scale-forming ions such as calcium, the magnesium in water removal are removed with Na-ion exchanger.The water flowed out out of exchanger in this way is exactly to eliminate hardness
Softened water.The purposes of the softened water: 1, as steam generator or the make-up water of steam boiler；2, as softening water- to-water heat exchanger
With the heat exchange cycle water in feed exchanger shell side.
The vapour system 6 by feed pump, steam generator and divides the equipment such as drum to form, or directly utilizes neighbouring factory
The medium pressure steam system in area sprays into steam direct heating by mud vapour hybrid heater 2 and is pyrolyzed sludge as steam heat source.
The working principle of the utility model is: the present apparatus will prepare the heat of 175 DEG C of a tank in pyrolytic reaction tank 3 when putting into operation
Mud simultaneously exports discharge from tank bottom；The outlet softened water of the softened water equipment 5 enters the shell side of heat recovery heat exchanger 4, softening
Water is heated to 165 DEG C by the warm sludge flowed in 4 tube side of heat recovery heat exchanger, then from the shell-side outlet of heat recovery heat exchanger 4
The shell side heating that outflow enters softening water heater 1 enters the import sludge of tube side, and sludge is in the tube side of softening water heater 1
Be heated to 155 DEG C, then flow into the inner tube of mud vapour hybrid heater 2 from the tube side outlet of softening water heater 1, then with from mud vapour
2 side of hybrid heater is mixed to the steam of penetrating, and sludge is heated directly to 175 DEG C -180 DEG C, enters back into pyrolytic reaction tank 3
It stops about 40-60 minutes, completes the pyrolytic reaction process of sludge；Sludge after reaction enters heat recovery heat exchanger 4 and is entered
After the softened water recycling heat of shell side, then softening water heater 1 is gone to heat import sludge.
Steam pyrolysis device of sludge is provided with heat recovery heat exchanger 4, softening water heater 1 and mud vapour hybrid heater
2, it constitutes a set of special waste heat and recycles and with the pyrolyzing sludge device of steam direct heating sludge stoste；
The mud vapour hybrid heater 2 is a kind of Novel steam direct heater being made of casing and inner tube, sludge
Enter from the import of mud vapour hybrid heater 2 dirty with the direct Hybrid Heating of steam from inclined hole penetrating in hybrid heater inner tube
Mud does not heat between 2 inner tube wall of mud vapour hybrid heater and outer wall by temperature difference, does not generate fouling, and heat transfer efficiency is high；
By adjusting the steam straying quatity of mud vapour hybrid heater 2, the sludge temperature that mud vapour hybrid heater 2 is exported
The 175-180 degree or so in needs is controlled, enters back into pyrolytic reaction tank 3 and completes the pyrolytic reaction process of sludge；
It is not heated by temperature difference between the mud vapour hybrid heater outer wall of inner tube and inner wall of the mud vapour hybrid heater 2,
Inner tube wall does not generate scale problems；Secondly, the steam after Hybrid Heating, which becomes condensed water, to dilute sludge, can equally prevent
The scale problems of 2 inner wall of mud vapour hybrid heater；
The utility model solves Authorization Notice No.: CN207451900U is by softening water heater and hotline heater
Indirect two-stage heating, progress is using mud vapour hybrid heater 2 instead of the more serious hotline heater of fouling, i.e., sharp
As soon as spraying into steam direct heating with softening water heater section indirect heating and using mud vapour hybrid heater 2, also solves and lead
The more serious problem of hot oil high temperature section tube side encrustation；While in order to solve the softening water heater 1 of middle-temperature section
The slight scale problems of tube side release the slight knot of softening 1 middle-temperature section heater of water heater using scale remover Periodic scale removal method
Dirty problem.That is: two groups of parallel heaters are set in middle-temperature section, one group of heater works normally heating sludge, another group of heating
Device is separated with isolating valve carries out scale remover cleaning and descaling work, and two groups of heaters periodically mutually change jobs and scale removal position, solves
The scale problems that middle-temperature section heater is slight.In this way, heater can be needed the workload of scale removal minimize, and do not influence it
The continuous normal production work of his heater.
Embodiment 1
Certain sewage treatment plant produces biochemical excess sludge 120t/d daily, takes 20 DEG C of sludge average inlet temperature, practical using this
Sludge is heated to 180 DEG C from 20 DEG C by new technique, wherein deducts 5 DEG C of radiation loss, waste heat recycles and utilize temperature 152.5
DEG C, steam direct heating heats up 27.5 DEG C, calculates energy-saving effect up to 83%.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, all according to this
The technical spirit of utility model any trickle amendment, equivalent replacement and improvement to the above embodiments should be included in this
Within the protection scope of utility model technical solution.
Claims (3)
1. a kind of steam pyrolysis device of sludge, it is characterised in that: including softening water heater (1), mud vapour hybrid heater (2),
Pyrolytic reaction tank (3), heat recovery heat exchanger (4), softened water equipment (5) and vapour system (6)；
The tube side import of softening water heater (1) is connect by pipeline with sludge import, and softening water heater (1) tube side goes out
Mouth is connect by pipeline with the import of the mud vapour hybrid heater (2)；
The outlet of the mud vapour hybrid heater (2) is connected by pipeline with the upper inlet of the pyrolytic reaction tank (3)；
The lower part outlet of the pyrolytic reaction tank (3) passes through the top tube side import of pipeline and the heat recovery heat exchanger (4)
It is connected, heat recovery heat exchanger (4) the tube side sludge outlet is connected by pipeline with downstream sludge treatment device；
The outlet of the softened water equipment (5) is connected by pipeline with the shell side import of heat recovery heat exchanger (4), waste heat recycling
The shell-side outlet of heat exchanger (4) is connected by pipeline with the shell side import of softening water heater (1)；Soften water heater
(1) shell-side outlet is connected by pipeline with softened water equipment (5) outlet；
The outlet of the vapour system (6) is connected by pipeline with the lateral import of casing of mud vapour hybrid heater (2), steam system
The import of system (6) is connected by pipeline with the lateral softening water out of softened water equipment (5).
2. steam pyrolysis device of sludge according to claim 1, it is characterised in that: the mud vapour hybrid heater (2), by
The Novel steam direct heater that casing and inner tube are constituted, forms an annular steam collet, is steaming between casing and inner tube
Inner tube at vapour collet arranges an appropriate number of inclined hole, sprays into for the steam in collet by inclined hole and mutually mixes with the sludge of inner tube
It closes, exports and flow out from mud vapour hybrid heater after sludge is directly heated 175-180 DEG C, do not generate fouling.
3. steam pyrolysis device of sludge according to claim 1, it is characterised in that: the vapour system (6), by water supply
Pump, steam generator and drum equipment is divided to form, or directly hot using the medium pressure steam system of neighbouring plant area as steam heating
Source sprays into steam direct heating by mud vapour hybrid heater (2) and is pyrolyzed sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466685.9U CN209143989U (en) | 2018-09-08 | 2018-09-08 | A kind of steam pyrolysis device of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466685.9U CN209143989U (en) | 2018-09-08 | 2018-09-08 | A kind of steam pyrolysis device of sludge |
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| Publication Number | Publication Date |
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| CN209143989U true CN209143989U (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821466685.9U Active CN209143989U (en) | 2018-09-08 | 2018-09-08 | A kind of steam pyrolysis device of sludge |
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| CN (1) | CN209143989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548705A (en) * | 2021-09-01 | 2021-10-26 | 中国科学院武汉病毒研究所 | Heat exchange system and method for continuous wastewater treatment in biosafety laboratory |
-
2018
- 2018-09-08 CN CN201821466685.9U patent/CN209143989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548705A (en) * | 2021-09-01 | 2021-10-26 | 中国科学院武汉病毒研究所 | Heat exchange system and method for continuous wastewater treatment in biosafety laboratory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210722 Address after: 524000 Lingbei industrial base, Suixi County, Zhanjiang City, Guangdong Province Patentee after: ZHANJIANG YUANTONG HI-TECH Co.,Ltd. Address before: 524000 room 506, building 24, Nanyou Third District, Jizui Road, Potou District, Zhanjiang City, Guangdong Province Patentee before: Chen Yushu |
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| TR01 | Transfer of patent right |