CN107162385A - A kind of heat treatment system for bed-silt - Google Patents
A kind of heat treatment system for bed-silt Download PDFInfo
- Publication number
- CN107162385A CN107162385A CN201710537104.XA CN201710537104A CN107162385A CN 107162385 A CN107162385 A CN 107162385A CN 201710537104 A CN201710537104 A CN 201710537104A CN 107162385 A CN107162385 A CN 107162385A
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- China
- Prior art keywords
- heat
- bed
- silt
- heat treatment
- treatment system
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Classifications
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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
- C02F11/18—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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- 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)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of heat treatment system for bed-silt, including heat treatment receiver, circulating line, heat exchanger, discharge line, incinerator, flue gas incineration furnace, latent heat recoverer；One end of discharge line is provided with vavuum pump and pressure regulator valve；Incinerator is used to residual substances being sent to flue gas incineration furnace burning；Flue gas incineration furnace is used to be burnt fuel gas together with air, to produce high-temperature flue gas and be delivered to heat exchanger；Vavuum pump is used to control the pressure in circulating line with pressure regulator valve, and the bed-silt through Overheating Treatment can increase gaseous material in circulating line, improve the pressure in the circulating line.The heat treatment system of the present invention, can efficiently separate the gaseous material and solid residue in bed-silt, realize the low pollution emission of confined space, effectively increase heat conduction efficiency, significantly reduce the discharge of the extremely toxic substances such as bioxin.
Description
Technical field
The present invention relates to technical field of heat treatment, more particularly to a kind of heat treatment system for bed-silt.
Background technology
As people go deep into bed-silt microexamination, application technology is continued to develop, from earliest bed-silt
Firing ceramics, brick-making technology start, by now bed-silt anhydration and incineration technology, bed-silt fume afterheat drying technique, river
Bottom mud spray drying swinging incineration technology, the integrated desiccation Incineration in CFB technology of bed-silt.Bed-silt heat
Treatment technology, which is constantly updated, to be developed, but malodorous discharge and tail gas in severe toxicity bioxin problems, bed-silt drying process
Governing problem, the high energy consumption issues of heat treatment are all protruded all the more.
At present, typically directly heating bed-silt using hot-air makes moisture evaporation and reaches dry mode, dried
The high humility gas of journey output, also because of water vapour and air entrainment, contained aqueous vapor condensation temperature is with moisture in gas
Change, it is impossible to effectively reclaim the discharged latent heat of condensation.And the further drawback that hot-air is dried is that, containing oxygen, meeting is with being dried
Thing produces oxidation, and temperature, which reaches, can also trigger burning during burning-point, it is necessary to reduce the thermal efficiency by temperature control below burning-point
And device against fire hazard is set.In addition, being not only mingled with the peculiar smell produced by drying when heating agent dries the waste gas of institute's output with hot-air
The polluters such as Ji bioxin, it is necessary to which further purified treatment could be discharged.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of heat treatment system for bed-silt, the heat treatment
System can efficiently separate gaseous material and solid residue in bed-silt, realize the low pollution emission of confined space, have
Effect improves heat conduction efficiency, significantly reduces the discharge of the extremely toxic substances such as bioxin.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of heat treatment system for bed-silt, including：It is heat-treated receiver, circulating line, heat exchanger, discharge pipe
Road, incinerator, flue gas incineration furnace, latent heat recoverer；One end of discharge line is provided with vavuum pump and pressure regulator valve；
Receiver is heat-treated, for receiving the importing of bed-silt and bed-silt being heat-treated；
Heat exchanger, for bed-silt to be produced into gaseous material through Overheating Treatment, gaseous material is transmitted by circulating line
To the heat exchanger, gaseous material is set to carry out heat exchange with high temperature heat source to lift temperature, the gaseous state thing after being lifted through temperature
Matter imports heat treatment receiver again, gaseous material is followed between heat exchanger and heat treatment reactor by circulating line
Ring, and material after heat treatment also forms residual substances；
Incinerator, for residual substances to be sent into the flue gas incineration furnace and the combust of air one, to produce fuel gas；
Flue gas incineration furnace, for fuel gas to be burnt together with air, is handed over producing high-temperature flue gas and being delivered to heat
Parallel operation；
Vavuum pump is used to control the pressure in circulating line, the meeting in circulating line of the bed-silt through Overheating Treatment with pressure regulator valve
Increase gaseous material, improve the pressure in the circulating line, discharge line is then flowed through when gaseous material increases to predetermined threshold value
Import latent heat recoverer.
Preferably, the heat treatment system also includes：
First dust removing units, for carrying out dust removal process, then the heat energy for needed for being provided the heat exchanger to high-temperature flue gas.
Preferably, the heat treatment system also includes：
High-temperature boiler, for absorbing energy to the low-temperature flue gas produced after high-temperature flue gas processing from heat exchanger.
Preferably, the heat treatment system also includes：
Second dust removing units, for making dust removal process to the low-temperature flue gas that energy is provided for high-temperature boiler.
Preferably, the latent heat recoverer include at least one preheating unit, reclaim gaseous material heat energy to it is described extremely
A few preheating unit is heated.
Preferably, the latent heat recoverer also includes condensing unit, for condensing gaseous material, generation condensed material with not
Condensed material.
Preferably, heat treatment produce gaseous material by circulating line heat exchanger with heat treatment receiver it
Between circulate, formed sealing and circulating.
Preferably, the pressure that the vavuum pump is used to adjust in circulating line is to negative pressure, and the pressure regulator valve is followed for regulation
Pressure in endless tube road is to malleation.
Compared with prior art, the present invention has the advantages that：
（1）The heat treatment system of the present invention, can efficiently separate the gaseous material and solid residue in bed-silt, realize close
The low pollution emission in space is closed, heat conduction efficiency is effectively increased, the discharge of the extremely toxic substances such as bioxin is significantly reduced.
（2）The heat treatment system of the present invention, bed-silt is imported into heat treatment receiver, and import high-temperature gas heating agent with
It directly contacts progress heat exchange, and the bed-silt in heat treatment receiver is because of heated output gaseous material and solid residue thing
Matter, gaseous material is imported to import again after heat exchanger is heated by circulating line and is heat-treated as heating agent through circulating fan
Receiver；Gaseous material is transferred into latent heat recoverer through discharge line, and gaseous material progress condensation is released in latent heat recoverer
Release latent heat and heat cold fluid.Reach the purpose that gaseous material is separated with liquid in bed-silt, and by gaseous state
Material continues as boiler supplying heat, realizes the Optimum utilization of energy, has saved the energy, meets the theory of sustainable development.
Brief description of the drawings
Fig. 1 is the configuration diagram of the heat treatment system for bed-silt of the embodiment of the present invention 1；
Fig. 2 is the configuration diagram of the heat treatment system for bed-silt of the embodiment of the present invention 2.
Embodiment
In order that the purpose, technical scheme and advantage of the embodiment of the present invention are more clearly understood that, with reference to embodiment and accompanying drawing,
Embodiments of the invention are further described in detail.Here, the present invention illustrative examples and illustrate be used for explain
The present invention, but it is not as a limitation of the invention.
Embodiment 1
As shown in figure 1, a kind of bed-silt high-temperature process system of the present embodiment, including heat treatment receiver 1, circulating line
10th, heat exchanger 2, discharge line 11, incinerator 4, flue gas incineration furnace 5, latent heat recoverer 3.The one of discharge line 11
End is provided with vavuum pump 7 and pressure regulator valve 14.
Heat treatment receiver 1 is used to receive the importing of bed-silt and bed-silt is heat-treated；Heat exchanger
2, for bed-silt to be produced into gaseous material through Overheating Treatment, gaseous material is sent to the heat exchanger by circulating line
2, gaseous material is carried out heat exchange with high temperature heat source to lift temperature, the gaseous material after being lifted through temperature imports heat treatment again
Receiver 1, by circulating line 10 make gaseous material heat exchanger 2 and heat treatment receiver 1 between circulate, and through heat at
Material after reason also forms residual substances.Incinerator 4 is used to residual substances being sent to flue gas incineration furnace 5 and the ignition of air one
Burn, to produce fuel gas.Flue gas incineration furnace 5 is used to be burnt fuel gas together with air, to produce high-temperature flue gas
And it is delivered to heat exchanger 2.
Vavuum pump 7 is used to control the pressure in circulating line 10 with pressure regulator valve 14, and the bed-silt through Overheating Treatment is being followed
Gaseous material can be increased in endless tube road 10, the pressure in the circulating line road is improved, when gaseous material increases to predetermined threshold value then
Flow through discharge line 11 and import latent heat recoverer 3.
Specifically, bed-silt is imported into heat treatment receiver, and its humidity is up to 60-80%, preferably be 60%.Utilize
Heat treatment receiver is heat-treated to bed-silt, is heat-treated such as being dried, crack or be calcined.High-moisture percentage it is wet
Bed-silt is imported by rotary dryer entrance, progressively can be moved because stack shell rotates with tilting toward the rotating cylinder other end, in rotation
The cylinder other end then sets bed-silt after drying to export；In addition in entry/exit mouthful of the rotary dryer two ends provided with heating agent, with
Import high temperature heating agent and carry out heat exchange is directly contacted with bed-silt.The flow direction of high temperature heating agent can on demand with bed-silt
It is in the same direction or reverse.
In rotary dryer, temperature rises to boiling point, river bed after the bed-silt of high-moisture percentage is contacted with the heating agent of high temperature
Moieties form gaseous material because of high temperature and reach the purpose separated with surplus materials in mud.On the other hand the height imported
Warm matchmaker reduces temperature because providing the heat energy needed for evaporating.Gaseous material of the bed-silt in heat treatment receiver output
Then heat exchanger is delivered to the heating agent after reduction temperature via circulating line via circulating fan to heat again.
Because bed-silt drying is in circulating line 10, water vapour can constantly increase, and cause pressure in circulating line 10
Improve constantly.The increased water vapour of institute flows through latent heat recoverer 3 by discharge line 11 in this example, and the end of discharge line 11 is then
The negative-pressure operation of vavuum pump 7 is set, a pressure regulator valve is then set in positive pressure operation to control the operating pressure of heat treatment receiver 1.
Latent heat recoverer 3 is an indirect heat exchanger, carries out heat exchange using cold fluid and 150 DEG C of cryogenic overheating steam and made
Vapours temperature is reduced, and when vapor (steam) temperature is down to dew-point temperature, steam can discharge latent heat and be condensed into aqueous water.In this example
Because the gaseous material composition of discharge is almost all water vapour, therefore its dew-point temperature can remain unchanged when water vapour is condensed, because
This latent heat for accounting for the steam enthalpy overwhelming majority can be reclaimed in dew-point temperature, and cold fluid can be heated near dew-point temperature.
Steam is condensed, and into after aqueous water, its temperature is identical with dew-point temperature, can further reclaim its sensible heat or as other purposes again
Utilize.
The gaseous material discharged by discharge line 11 is after latent heat recoverer 3, and in negative-pressure operation, its temperature can be down to and connect
The cold fluid inlet temperature of nearly latent heat recoverer 3, incondensable gas main component at this temperature feeds institute for bed-silt
The a small amount of air being mingled with and the air leaked into by outside, can be directed at incinerator 4 as one of gasifying gas by vavuum pump 7
Point.In positive pressure operation, the pressure of the end of discharge line 11 is slightly identical with heat treatment receiver 1, now time of latent heat recoverer 3
Receipts ratio, that is, the water vapour part that heat treatment receiver 1 is evaporated is condensed into water by latent heat recoverer 3, part is then by pipeline
The pressure regulator valve of end is disengaged to other processing procedures, therefore incondensable gas is still based on superheated steam in positive pressure operation.
Dried dry bed-silt has reached will be as incinerator 4 in the feed needs of incinerator 4, this example
Charging.Gasifying gas is then to be imported by extraneous based on the air preheated through latent heat recoverer 3.The not condensate of discharge line 11
Matter can also import the part as gasifying gas.
Embodiment 2.
As shown in Fig. 2 a kind of hot high-temperature process system of bed-silt of the present embodiment is also comprising the first dust removing units 8, high temperature pot
The dust removing units 12 of stove 9 and second.High-temperature flue gas imports heat exchanger 2 after collecting most flying dust through the first dust removing units 8
Heating agent progress heat exchange with being heat-treated reactor 1, after absorbing partial heat energy through heat exchanger 2, the temperature meeting of high-temperature flue gas
Thus reduce.Flue gas after reduction temperature still has recovery value, can be conducted into other heat reclamation devices such as high-temperature boiler 9 and reclaim
Remaining heat energy, outlet temperature is reduced to about 180 DEG C after flue gas further absorbs heat energy through high-temperature boiler 9, and one is no longer entered in this example
Step is reclaimed, and by low-temperature flue gas after the dedusting of the second dust removing units 12, then is discharged by chimney.
Latent heat recoverer 3 includes an at least preheating unit 31 and a condensing unit 32.Wherein preheating unit 31 can be series connection
It is series winding in the present embodiment or parallel connection is implemented.The steam of discharge is first transferred into preheating unit 31, and incinerator 4 gasifies sky
The preheating unit of gas and the combustion air of flue gas incineration furnace 5.Last unnecessary steam latent heat condenses heel row through a condensing unit 32 again
Go out incondensable gas to incinerator 4.When 150 DEG C of the preheated unit 31 of steam stream is preheated, gradually reduced because of heat exchange
Temperature, while the air themperature being preheated then is stepped up, when vapor (steam) temperature is reduced to dew-point temperature, because steam discharge it is latent
Heat, now to maintain dew-point temperature constant for vapor (steam) temperature, therefore preheated air can be heated to more than 100 DEG C.Then saturation is steamed
Temperature maintains dew-point temperature during steam flow preheated unit, can heating boiler feed water to about 90 DEG C.Last remaining saturation is steamed
Vapour, can heat other pre- heated cold fluids to about 90 DEG C, or does not utilize and use condensing unit 32, will using cooling water
Steam is further cooled down, and incondensable gas its temperature for making that gaseous material discharged in condensing unit 32 is only slightly higher than cooling water
Temperature.
The heat treatment system of the present invention, can efficiently separate the gaseous material and solid residue in bed-silt, realize
The low pollution emission of confined space, effectively increases heat conduction efficiency, significantly reduces the discharge of the extremely toxic substances such as bioxin.River
Bottom mud is imported into heat treatment receiver, and imports high-temperature gas heating agent and be in direct contact with it carry out heat exchange, is connect in heat treatment
Bed-silt in device is received because of heated output gaseous material and solid residue material, gaseous material as heating agent through circulating fan by
Circulating line is imported imports heat treatment receiver again after heat exchanger is heated；Gaseous material is transmitted through discharge line
To latent heat recoverer, gaseous material progress condensation discharges latent heat and heats cold fluid in latent heat recoverer.River bed is reached
The purpose that gaseous material is separated with liquid in mud, and gaseous material is continued as into boiler supplying heat, realize energy
The Optimum utilization of amount, has saved the energy, meets the theory of sustainable development.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of heat treatment system for bed-silt, it is characterised in that including：It is heat-treated receiver, circulating line, heat
Exchanger, discharge line, incinerator, flue gas incineration furnace, latent heat recoverer；One end of discharge line is provided with vavuum pump and tune
Pressure valve；
Receiver is heat-treated, for receiving the importing of bed-silt and bed-silt being heat-treated；
Heat exchanger, for bed-silt to be produced into gaseous material through Overheating Treatment, gaseous material is transmitted by circulating line
To the heat exchanger, gaseous material is set to carry out heat exchange with high temperature heat source to lift temperature, the gaseous state thing after being lifted through temperature
Matter imports heat treatment receiver again, gaseous material is followed between heat exchanger and heat treatment reactor by circulating line
Ring, and material after heat treatment also forms residual substances；
Incinerator, for residual substances to be sent into the flue gas incineration furnace and the combust of air one, to produce fuel gas；
Flue gas incineration furnace, for fuel gas to be burnt together with air, is handed over producing high-temperature flue gas and being delivered to heat
Parallel operation；
Vavuum pump is used to control the pressure in circulating line, the meeting in circulating line of the bed-silt through Overheating Treatment with pressure regulator valve
Increase gaseous material, improve the pressure in the circulating line, discharge line is then flowed through when gaseous material increases to predetermined threshold value
Import latent heat recoverer.
2. the heat treatment system according to claim 1 for bed-silt, it is characterised in that the heat treatment system is also
Including：
First dust removing units, for carrying out dust removal process, then the heat energy for needed for being provided the heat exchanger to high-temperature flue gas.
3. the heat treatment system according to claim 1 for bed-silt, it is characterised in that the heat treatment system is also
Including：
High-temperature boiler, for absorbing energy to the low-temperature flue gas produced after high-temperature flue gas processing from heat exchanger.
4. the heat treatment system according to claim 3 for bed-silt, it is characterised in that the heat treatment system is also
Including：
Second dust removing units, for making dust removal process to the low-temperature flue gas that energy is provided for high-temperature boiler.
5. the heat treatment system according to claim 1 for bed-silt, it is characterised in that the latent heat recoverer bag
At least one preheating unit is included, the heat energy for reclaiming gaseous material is heated at least one described preheating unit.
6. the heat treatment system according to claim 5 for bed-silt, it is characterised in that the latent heat recoverer is also
Including condensing unit, for condensing gaseous material, generation condensed material and not condensed material.
7. the heat treatment system according to claim 1 for bed-silt, it is characterised in that the gaseous state that heat treatment is produced
Material forms sealing and circulating by being circulated in circulating line between heat exchanger and heat treatment receiver.
8. the heat treatment system according to claim 1 for bed-silt, it is characterised in that the vavuum pump is used to adjust
The pressure in circulating line is saved to negative pressure, the pressure that the pressure regulator valve is used to adjust in circulating line to malleation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537104.XA CN107162385A (en) | 2017-07-04 | 2017-07-04 | A kind of heat treatment system for bed-silt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537104.XA CN107162385A (en) | 2017-07-04 | 2017-07-04 | A kind of heat treatment system for bed-silt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107162385A true CN107162385A (en) | 2017-09-15 |
Family
ID=59822500
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710537104.XA Withdrawn CN107162385A (en) | 2017-07-04 | 2017-07-04 | A kind of heat treatment system for bed-silt |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276130A (en) * | 2011-05-31 | 2011-12-14 | 陈海渊 | Sludge resource treatment apparatus and sludge treatment method using the same |
| CN102635865A (en) * | 2012-04-19 | 2012-08-15 | 浙江大学 | Sludge drying and incinerating integrated treatment system and process thereof |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Material heat treatment separation and energy recovery system |
| CN104033911A (en) * | 2014-06-30 | 2014-09-10 | 南京德邦金属装备工程股份有限公司 | Sludge drying and incinerating system |
| CN204918337U (en) * | 2015-07-22 | 2015-12-30 | 德州众和环保装备制造有限公司 | Sludge drying incineration disposal device |
-
2017
- 2017-07-04 CN CN201710537104.XA patent/CN107162385A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276130A (en) * | 2011-05-31 | 2011-12-14 | 陈海渊 | Sludge resource treatment apparatus and sludge treatment method using the same |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Material heat treatment separation and energy recovery system |
| CN102635865A (en) * | 2012-04-19 | 2012-08-15 | 浙江大学 | Sludge drying and incinerating integrated treatment system and process thereof |
| CN104033911A (en) * | 2014-06-30 | 2014-09-10 | 南京德邦金属装备工程股份有限公司 | Sludge drying and incinerating system |
| CN204918337U (en) * | 2015-07-22 | 2015-12-30 | 德州众和环保装备制造有限公司 | Sludge drying incineration disposal device |
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Application publication date: 20170915 |
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