CN107179005A - A kind of kiln system for including exhaust treatment system - Google Patents
A kind of kiln system for including exhaust treatment system Download PDFInfo
- Publication number
- CN107179005A CN107179005A CN201710576593.XA CN201710576593A CN107179005A CN 107179005 A CN107179005 A CN 107179005A CN 201710576593 A CN201710576593 A CN 201710576593A CN 107179005 A CN107179005 A CN 107179005A
- Authority
- CN
- China
- Prior art keywords
- dust
- heat pump
- heat
- tail gas
- kiln
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention provides a kind of kiln system for including exhaust treatment system, the dust arrester of dust removal process is carried out including kiln, for the tail gas to introducing, at least one is used to carry out the tail gas after dust removal process the heat pump of absorbing and cooling temperature processing and the tail gas for being treated to heat pump carries out the Wet-way dust-collector of dust removal process, the air outlet of dust arrester connects the heat absorbing units air inlet of heat pump, and the heat absorbing units air outlet of heat pump connects the air inlet of Wet-way dust-collector.Tail gas carries out being passed through the heat absorbing units of heat pump after one-time dedusting by dust arrester, heat in the heat absorbing units tail gas of heat pump is largely siphoned away and abrupt temperature drop, exhaust temperature can be reduced to less than 55 °C, avoid wet dedusting stage dedusting water evaporation, be conducive to dust settling in tail gas and by the moisture absorption of wet dedusting, eliminate haze phenomenon.
Description
Technical field
The present invention relates to a kind of kiln system for including exhaust treatment system.
Background technology
In recent years, haze phenomenon in some areas is serious, and environmental problem rises to new height, and national economy is caused
Significant negative impact, energy-saving and emission-reduction, elimination haze have become the important act that important people's livelihood engineering turns into country, enterprise advocates
Arrange.With industrial development, industrial tail gas discharge is more serious, and most of industrial tail gas is only by simple processing under normal circumstances
Just directly discharge, far from meet the requirement of environmental protection.Common industrial tail gas has pre- hot exhaust gas of boiler exhaust gas, material etc., these rows
Put exhaust temperature higher, several Baidu can be reached, directly discharge not only causes heat waste, also there is larger pollution to air.
For it is such the problem of, there is also the various handling process handled tail gas at present.Such as Application No.
201620779902.4th, the applying date discloses boiler exhaust gas desulfurization and dedusting waste heat profit for 2016.07.25 Chinese invention patent
With system, the exhaust treatment system is by the tail gas of boiler emission by heat exchanger tube heat exchange, by sack cleaner dedusting, Ran Houjing
Discharged after crossing desulfurizing tower and dehydrator processing.Although this exhaust treatment system realizes heat recovery by heat exchange, adopt
Limited with water cooling heat transfer effect, tail gas also has higher temperature, then the heat that tail gas is higher by normal temperature part is just wasted.
Moreover, so the tail gas with higher temperature only eliminates particle diameter in tail gas when carrying out dust removal process by bag-type dust
Larger dust granules, can not eliminate the PM2.5 particles in emission, and dust removing effects are limited, not have for eliminating haze
Effect.
The content of the invention
It is an object of the invention to provide a kind of good dedusting effect, the kiln system comprising exhaust treatment system of elimination haze
System.
To achieve the above object, the technical scheme one of the kiln system comprising exhaust treatment system of the invention：Including kiln
Stove, the dust arrester for carrying out dust removal process to the tail gas of introducing, at least one is used to carry out the tail gas after dust removal process
The heat pump of absorbing and cooling temperature processing and the wet dedusting dress for carrying out dust removal process to the treated tail gas of heat pump
Put, the air outlet of dust arrester connects the heat absorbing units air inlet of heat pump, the heat absorbing units air outlet connection of heat pump
The air inlet of Wet-way dust-collector.
When carrying out vent gas treatment using the tail gas treatment device of the present invention, tail gas carries out one-time dedusting by dust arrester,
Bulky grain dust therein can be filtered；Tail gas is passed through the heat absorbing units of heat pump afterwards, in the suction of heat pump
Heat in hot cell tail gas is largely siphoned away and abrupt temperature drop, realizes the abundant recovery of tail gas heat quantity, by such process,
Exhaust temperature can be reduced to less than 40 °C, and hereafter tail gas by wet dedusting when carrying out reducing temperature twice dedusting, due to tail gas
Yu Wen is relatively low, does not result in the moisture evaporation of wet dedusting, the moisture loss of wet dedusting is not resulted in substantially, and more than tail gas
The relatively low hypomotility for causing air molecule of temperature, flow velocity reduction, reduction in bulk, are more beneficial for the sedimentation and condensation of dust in tail gas
The absorption of water, can eliminate the PM2.5 in the tail gas of discharge.
On the basis of the technical scheme one of the above-mentioned kiln system comprising exhaust treatment system, the technology of obtaining can be optimized
Scheme two, the dust arrester can be using sack cleaner or electric dust collector or electric bag mixed dust removal device or cyclone dust removal
Device.
On the basis of the technical scheme one of the above-mentioned kiln system comprising exhaust treatment system, the technology of obtaining can be optimized
Scheme three, the heat pump has in two or more, two or more heat pump, there is the heat absorbing units of at least two heat pumps
It is set up in parallel along gas flow paths, or there are the heat absorbing units of at least two heat pumps in the circumference on exhaust pipe road
It is set up in parallel, so the temperature of tail gas can be down to lower temperature.
On the basis of the technical scheme three of the above-mentioned kiln system comprising exhaust treatment system, can further it optimize
To technical scheme four, i.e., described heat pump has two or more, the heat absorbing units of each heat pump along gas flow paths simultaneously
Row are set, and this arrangement is the simplest, save space.
On the basis of each above-mentioned technical scheme, the Wet-way dust-collector is spray equipment, the spray equipment
Tank is reclaimed to connect with sedimentation basin and the water after spray can be made to flow into sedimentation basin.
Further, the kiln system comprising exhaust treatment system also includes connecting with sedimentation basin and supplying upper in sedimentation basin
The clear water reserviors of layer clear water outflow, clear water reserviors are connected with spray equipment and supplied water by supply channel to spray equipment.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment one of the kiln system of the present invention when in use；
Fig. 2 is the schematic diagram of the embodiment two of the kiln system of the present invention when in use；
Fig. 3 is the schematic diagram that tail gas flows along dust arrester, heat pump and Wet-way dust-collector；
Fig. 4 for the present invention kiln system embodiment one in heat pump arrangement schematic diagram；
Fig. 5 for the present invention kiln system embodiment two in heat pump arrangement schematic diagram.
In figure：1st, kiln；10th, xeothermic tail gas；2nd, dust arrester；3rd, dust collecting；4th, heat pump；6th, wet method is removed
Dirt device；7th, sedimentation basin；8th, clear water reserviors；9th, tail gas is emptied；11st, cold air；12nd, high-temperature gas；13rd, power station；14th, boiler；
40th, electric power acting unit；41st, heat absorbing units；42 heat-sink units.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The embodiment one of the kiln system comprising exhaust treatment system of the present invention, as shown in Fig. 1,4, specifically includes kiln
1st, the dust arrester 2 of dust removal process is carried out for the tail gas to kiln, in addition to the tail gas after dust removal process is absorbed heat, dropped
The wet method that the heat pump 4 that temperature is handled and the tail gas for being treated to heat pump 4 carry out reducing temperature twice dust removal process is removed
Dirt device 6, the air outlet of dust arrester 2 connects the heat absorbing units air inlet of heat pump 4, and the heat absorbing units of heat pump 4 go out
Air port connects the air inlet of Wet-way dust-collector 6, and Wet-way dust-collector 6 is communicated with the sedimentation basin 7 for reclaiming water in dust removal, precipitates
Pond 7 is communicated with clear water reserviors 8, and clear water reserviors 8 are used to flow into for the upper strata clear water in sedimentation basin 7, and the water in clear water reserviors 7 can be used again
In wet dedusting process.
The power of exhaust emissions amount and existing heat pump in view of kiln, heat pump can set n, wherein
N >=2, as shown in figure 4, the heat absorbing units 41 of each heat pump are set up in parallel along gas flow paths.
In use, the xeothermic tail gas 10 that kiln 1 is discharged carries out primary dust removing by dust arrester 2, can be by tail gas
In big dust particle filtering, and there is dust collecting 3 to collect；In tail gas after primary dust removing, heat pump 4 is introduced
In heat absorbing units 41, heat pump 4 is done work by electric power acting unit 40 inhales the xeothermic tail gas heat quantity Jing Guo heat absorbing units 41
Receive and make its abrupt temperature drop and be down to less than 55 °C, now exhaust temperature is from a few Baidu's rapid drawdowns to close to normal temperature, and this process is real
The heat absorption to xeothermic tail gas, cooling are showed；Heat absorbing units 41 by after heat transmission to heat-sink unit 42, extraneous cold air 11 with
Heat exchange occurs for heat-sink unit 42 and proposes value heating to form high-temperature gas 12, high-temperature gas 12 can with later use, for example for
Kiln is preheated, and can also be used in boiler 14 and be saved boiler oil；Followed by, the tail gas of lower temperature is reduced to again by wet method
Dust arrester 6 carries out reducing temperature twice dust removal process, it becomes possible to realize the height dedusting to tail gas and the abundant recovery to heat.
Being mainly characterized by for the kiln system of the present invention, being capable of the maximized heat absorbed in tail gas by heat pump
The temperature of amount, maximized reduction tail gas, carries out heating by the effect of heat pump and carries heat later use after value, so
Realize the effective recycling of heat.And be that follow-up wet dedusting process is carried after the maximized reduction of exhaust temperature
Advantage is supplied, because the heat carried out when exhaust temperature is higher in wet dedusting processing, tail gas can be in wet dedusting
Cause the moisture evaporation of wet dedusting, exacerbate wet dedusting water consumption, and exhaust temperature it is higher when, air molecule fortune
Dynamic distance, flow velocity are higher, and the fine particle contained in tail gas, such as PM2.5 particles, activity are violent, not free settling, in wet dedusting
During be also not easy to be absorbed.And after by heat pump, exhaust temperature is reduced, air molecule hypomotility, flow velocity drop
Low, the activity of the fine particle that contains in tail gas weakens, and is easy to sedimentation, and also allows for during wet dedusting being inhaled by moisture
Receive, and do not result in moisture evaporation, not only optimize dust removing effects, and save water for dust removal.
By above-mentioned analysis, tail gas temperature when by heat pump drops lower, is more conducive to follow-up
Wet dedusting, accordingly, it is considered to electric energy loss and dust removing effects, preferably drop its temperature after tail gas is by heat pump
Even normal temperature is down to less than 40 DEG C（25℃）Below.
The kiln system of the present invention also reclaims the water in dust removal of wet dedusting process by sedimentation basin 7, and such water in dust removal is heavy
Upper strata clear water can be introduced into clear water reserviors 8 after being precipitated in shallow lake pond 7, and is reused during wet dedusting, save water source.
Present invention also offers the embodiment two of kiln system, as shown in Fig. 2,5, the High Temperature Gas generated by heat pump
Body 12 has four for heat pump used in the generating in power station 13, and the heat absorbing units 41 of each heat pump are conveyed around tail gas
Pipeline is arranged circumferentially.Certainly, in other embodiments, heat pump can have three or five or more than six.
When the power of heat pump is sufficient for cooling and required, heat pump even can be one.
In the embodiment of above two kiln system, dust arrester is sack cleaner, and Wet-way dust-collector fills for spray
Put, certainly, in other embodiments, dust arrester can also be cyclone dust collectors or be electric dust collector or be electric bag
Dust arrester, Wet-way dust-collector can be by settling tank filtering or be cleaning dust device.
Can be effectively by heat recovery in tail gas, simultaneously using the kiln system comprising exhaust treatment system of the present invention
Before wet dedusting by exhaust temperature be reduced to less than 55 °C it is even lower, so wet dedusting process be conducive to save water
Source, effective dedusting, effectively control haze.
Claims (6)
1. include the kiln system of exhaust treatment system, it is characterised in that carry out dedusting including kiln, for the tail gas to introducing
The dust arrester of processing, at least one heat pump and use for being used to carry out the tail gas after dust removal process absorbing and cooling temperature processing
The Wet-way dust-collector of dust removal process, the air outlet connection heat pump system of dust arrester are carried out in the tail gas treated to heat pump
The heat absorbing units air inlet of system, the heat absorbing units air outlet of heat pump connects the air inlet of Wet-way dust-collector.
2. the kiln system according to claim 1 for including exhaust treatment system, it is characterised in that the dust arrester is
Sack cleaner or electric dust collector or electric bag mixed dust removal device or cyclone dust collector.
3. the kiln system according to claim 1 for including exhaust treatment system, it is characterised in that the heat pump has
In two or more, two or more heat pump, the heat absorbing units for having at least two heat pumps are set side by side along gas flow paths
Put, or the heat absorbing units for having at least two heat pumps are set up in parallel in the circumference on exhaust pipe road.
4. the kiln system according to claim 3 for including exhaust treatment system, it is characterised in that the heat pump has
Two or more, the heat absorbing units of each heat pump are set up in parallel along gas flow paths.
5. the kiln system for including exhaust treatment system according to claim 1-4 any one, it is characterised in that described
Wet-way dust-collector is spray equipment, and the recovery tank of the spray equipment connects with sedimentation basin and can make the current after spray
Enter in sedimentation basin.
6. the kiln system according to claim 5 for including exhaust treatment system, it is characterised in that include vent gas treatment system
The clear water reserviors for the upper strata clear water outflow that the kiln system of system also includes connecting with sedimentation basin and supplied in sedimentation basin, clear water reserviors and spray
Device is connected and supplied water by supply channel to spray equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576593.XA CN107179005A (en) | 2017-07-14 | 2017-07-14 | A kind of kiln system for including exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576593.XA CN107179005A (en) | 2017-07-14 | 2017-07-14 | A kind of kiln system for including exhaust treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107179005A true CN107179005A (en) | 2017-09-19 |
Family
ID=59837516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576593.XA Pending CN107179005A (en) | 2017-07-14 | 2017-07-14 | A kind of kiln system for including exhaust treatment system |
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| Country | Link |
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| CN (1) | CN107179005A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294159A (en) * | 2011-07-04 | 2011-12-28 | 南京工业大学 | Integrated processor for dirty, damp and hot tail gas and technology thereof |
| CN103418220A (en) * | 2012-05-21 | 2013-12-04 | 李崇兴 | Gas-fired boiler (direct-fired machine) flue-gas waste heat recovery device integrating functions of denitration and water collection |
| CN104226073A (en) * | 2013-06-13 | 2014-12-24 | 烟台龙源电力技术股份有限公司 | Demisting dedusting device for flue gas treatment and flue gas demisting dedusting system |
| CN204786486U (en) * | 2015-05-28 | 2015-11-18 | 烟台龙源换热设备有限公司 | Coal fired boiler flue gas processing system |
| CN106925038A (en) * | 2015-12-30 | 2017-07-07 | 吴礼秀 | A kind of barium strontium salt rotary kiln exhaust gas dust collection method |
-
2017
- 2017-07-14 CN CN201710576593.XA patent/CN107179005A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294159A (en) * | 2011-07-04 | 2011-12-28 | 南京工业大学 | Integrated processor for dirty, damp and hot tail gas and technology thereof |
| CN103418220A (en) * | 2012-05-21 | 2013-12-04 | 李崇兴 | Gas-fired boiler (direct-fired machine) flue-gas waste heat recovery device integrating functions of denitration and water collection |
| CN104226073A (en) * | 2013-06-13 | 2014-12-24 | 烟台龙源电力技术股份有限公司 | Demisting dedusting device for flue gas treatment and flue gas demisting dedusting system |
| CN204786486U (en) * | 2015-05-28 | 2015-11-18 | 烟台龙源换热设备有限公司 | Coal fired boiler flue gas processing system |
| CN106925038A (en) * | 2015-12-30 | 2017-07-07 | 吴礼秀 | A kind of barium strontium salt rotary kiln exhaust gas dust collection method |
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