CN207755920U - A kind of kiln exhaust treatment system - Google Patents
A kind of kiln exhaust treatment system Download PDFInfo
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- CN207755920U CN207755920U CN201720856011.9U CN201720856011U CN207755920U CN 207755920 U CN207755920 U CN 207755920U CN 201720856011 U CN201720856011 U CN 201720856011U CN 207755920 U CN207755920 U CN 207755920U
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- heat pump
- dust
- tail gas
- heat
- pump system
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- 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 utility model provides a kind of kiln exhaust treatment system, include the dust-extraction unit, at least one heat pump system for carrying out absorbing and cooling temperature processing to the tail gas after dust removal process and the Wet-way dust-collector for being dusted processing to the processed tail gas of heat pump system that processing is dusted for the tail gas to introducing, the heat absorbing units air inlet of the air outlet connection heat pump system of dust-extraction unit, the air inlet of the heat absorbing units air outlet connection Wet-way dust-collector of heat pump system.Tail gas carries out the heat absorbing units that primary dedusting is passed through heat pump system later by dust-extraction unit, heat in the heat absorbing units tail gas of heat pump system is largely siphoned away and abrupt temperature drop, exhaust temperature can be reduced to 55 °C or less, avoid wet dedusting stage dedusting water evaporation, be conducive to the dust settling in tail gas and the moisture absorption by wet dedusting, eliminate haze phenomenon.
Description
Technical field
The utility model is related to industrial tail gas processing more particularly to a kind of kiln exhaust treatment systems.
Background technology
In recent years, haze phenomenon in some areas is serious, and environmental problem rises to new height, is caused to national economy
Significant negative impact, energy-saving and emission-reduction, elimination haze have become the important act that important people's livelihood engineering becomes country, enterprise advocates
It arranges.With industrial development, industrial tail gas discharge is more serious, and most of industrial tail gas is only by simple processing under normal conditions
With regard to direct emission, 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
It is higher to put exhaust temperature, several Baidu can be reached, direct emission not only causes heat waste, also there is larger pollution to air.
For this problem, there is also the various treatment process handled tail gas at present.Such as application No. is
201620779902.4, the applying date be 2016.07.25 Chinese utility model patent disclose more than boiler exhaust gas desulfurization and dedusting
Heat utilization system, the exhaust treatment system exchange heat the tail gas of boiler emission by heat exchanger tube, by bag filter dedusting, so
It is discharged after desulfurizing tower and dehydrator processing afterwards.Although this exhaust treatment system realizes heat recovery by heat exchange,
It is limited using water cooling heat transfer effect, tail gas also has higher temperature, then tail gas is higher by the heat of room temperature part just in vain
Waste.Moreover, the tail gas with higher temperature is only eliminated when being dusted processing by bag-type dust in tail gas in this way
The larger dust particles of grain size can not eliminate the PM2.5 particles in emission, and dust removing effects are limited, for eliminating haze
Do not act on.
Utility model content
The purpose of this utility model is to provide a kind of good dedusting effect, the kiln exhaust treatment systems of elimination haze.
To achieve the above object, the technical solution one of the kiln exhaust treatment system of the utility model：Including being used for drawing
The xeothermic tail gas entered be dusted processing dust-extraction unit, it is at least one for after dust removal process tail gas carry out absorbing and cooling temperature
The heat pump system of processing and Wet-way dust-collector for being dusted processing to the processed tail gas of heat pump system, dedusting dress
The heat absorbing units air inlet for the air outlet connection heat pump system set, the heat absorbing units air outlet connection wet dedusting dress of heat pump system
The air inlet set.
When carrying out vent gas treatment using the tail gas treatment device of the utility model, tail gas is once removed by dust-extraction unit
Bulky grain dust therein can be filtered by dirt；Tail gas is passed through the heat absorbing units of heat pump system later, in heat pump system
Heat in heat absorbing units tail gas is largely siphoned away and abrupt temperature drop, the abundant recycling of tail gas heat quantity is realized, by such mistake
Journey, exhaust temperature can be reduced to 40 °C hereinafter, hereafter tail gas by wet dedusting when being cooled down twice dedusting, due to tail
Gas residual temperature is relatively low, will not cause the moisture evaporation of wet dedusting, will not cause the moisture loss of wet dedusting, and tail gas substantially
Residual temperature it is relatively low so that the hypomotility of air molecule, flow velocity reduce, reduction in bulk, be more advantageous in tail gas the sedimentation of dust and cold
The absorption of condensate can eliminate the PM2.5 in the tail gas of discharge.
On the basis of technical solution one of above-mentioned kiln exhaust treatment system, it can optimize to obtain technical solution two, institute
It states dust-extraction unit and bag filter or electrical dust collector device or electric bag mixed dust removal device or cyclone dust collector may be used.
On the basis of technical solution one of above-mentioned kiln exhaust treatment system, it can optimize to obtain technical solution three, institute
Heat pump system is stated there are two more than, in more than two heat pump systems, there are the heat absorbing units of at least two heat pump systems along gas stream
Dynamic path is set up in parallel, or has the heat absorbing units of at least two heat pump systems to be set side by side in the circumferential direction on exhaust pipe road
It sets, the temperature of tail gas can be down to lower temperature in this way.
On the basis of technical solution three of above-mentioned kiln exhaust treatment system, it can advanced optimize to obtain technical solution
Four, i.e., there are two more than, the heat absorbing units of each heat pump system are set up in parallel the described heat pump system along gas flow paths, this
Arrangement is the simplest, saves space.
On the basis of above-mentioned each technical solution, the Wet-way dust-collector is spray equipment, the spray equipment
Recycling sink is connected to sedimentation basin and the water after spray can be made to flow into sedimentation basin.
Further, kiln exhaust treatment system further includes being connected to sedimentation basin and for the upper layer clear water outflow in sedimentation basin
Clear water reserviors, clear water reserviors be connected to spray equipment and by water supply pipe to spray equipment supply water.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment one of the kiln exhaust treatment system of the utility model when in use；
Fig. 2 is the schematic diagram of the embodiment two of the kiln exhaust treatment system of the utility model when in use；
Fig. 3 is the schematic diagram that tail gas is flowed along dust-extraction unit, heat pump system and Wet-way dust-collector；
Fig. 4 illustrates for the arrangement of heat pump system in the embodiment one of the kiln exhaust treatment system of the utility model
Figure；
Fig. 5 illustrates for the arrangement of heat pump system in the embodiment two of the kiln exhaust treatment system of the utility model
Figure.
In figure：1, kiln；10, xeothermic tail gas；2, dust-extraction unit；3, dust collecting；4, heat pump system；6, wet method is removed
Dirt device；7, sedimentation basin；8, clear water reserviors；9, tail gas is emptied；11, cold air；12, high-temperature gas；13, power station；14, boiler；
40, electric power acting unit；41, heat absorbing units；42 heat-sink units.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The embodiment one of the kiln exhaust treatment system of the utility model is specifically included as shown in Fig. 1,4 for introducing
Xeothermic tail gas be dusted the dust-extraction unit 2 of processing, further include absorbed heat to the tail gas after dust removal process, cool down processing
Heat pump system 4 and Wet-way dust-collector 6 for being cooled down twice dust removal process to 4 processed tail gas of heat pump system,
The heat absorbing units air inlet of the air outlet connection heat pump system 4 of dust-extraction unit 2, the heat absorbing units air outlet connection of heat pump system 4
The air inlet of Wet-way dust-collector 6, Wet-way dust-collector 6 are communicated with the sedimentation basin 7 for recycling water in dust removal, and sedimentation basin 7 is connected to
There are clear water reserviors 8, clear water reserviors 8 to be used to flow into for the upper layer clear water in sedimentation basin 7, the water in clear water reserviors 7 can be re-used for wet method
Dust removal process.
In view of the exhaust emissions amount of kiln and the power of existing heat pump system, heat pump system can be arranged n, wherein
N >=2, as shown in figure 4, the heat absorbing units 41 of each heat pump system 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-extraction unit 2, it can be by tail gas
In large dust particle filtering, and have dust collecting 3 collection；In tail gas after primary dust removing, heat pump system 4 is introduced
In heat absorbing units 41, heat pump system 4 is inhaled the xeothermic tail gas heat quantity Jing Guo heat absorbing units 41 by the electric power acting acting of unit 40
It receives and makes its abrupt temperature drop and be down to 55 °C hereinafter, for exhaust temperature from a few Baidu's rapid drawdowns to close to room temperature, this process is real at this time
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 puies forward value and heats up to form high-temperature gas 12, high-temperature gas 12 can with later use, such as
Kiln preheats, and can also be used in boiler 14 and save boiler oil；Followed by, the tail gas of lower temperature is reduced to pass through wet method again
Dust-extraction unit 6 is cooled down twice dust removal process, it will be able to realize the height dedusting to tail gas and the abundant recycling to heat.
Being mainly characterized by for the kiln exhaust treatment system of the utility model, can maximumlly be absorbed by heat pump system
Heat, the maximized temperature for reducing tail gas in tail gas, being carried out by the effect of heat pump system will be after heat after heating puies forward value
It is continuous to utilize, the effective recycling of heat has been achieved.It is subsequent wet method and after exhaust temperature maximumlly reduces
Dust removal process provides advantage, because carrying out wet dedusting processing when exhaust temperature is higher, the heat in tail gas can be
The moisture evaporation that wet dedusting is caused when wet dedusting exacerbates wet dedusting water consumption, and when exhaust temperature is higher,
Air molecule move distance, flow velocity are higher, the fine particle contained in tail gas, and such as PM2.5 particles, activity is violent, not free settling,
Also it is not easy to be absorbed during wet dedusting.And after being reduced exhaust temperature by heat pump system, air molecule movement subtracts
Weak, flow velocity reduces, and the fine particle activity contained in tail gas weakens, and convenient for sedimentation, and is also allowed for during wet dedusting
By moisture absorption, and moisture evaporation will not be caused, not only optimize dust removing effects, but also save water for dust removal.
By above-mentioned analysis it is found that tail gas temperature when passing through heat pump system drops lower, be more conducive to subsequent
Wet dedusting preferably drops its temperature after tail gas is by heat pump system accordingly, it is considered to arrive electric energy loss and dust removing effects
Even it is down to room temperature to 40 DEG C or less（25℃）Below.
The kiln exhaust treatment system of the utility model also recycles the water in dust removal of wet dedusting process by sedimentation basin 7, this
Upper layer clear water can be introduced into clear water reserviors 8 after sample water in dust removal precipitates in sedimentation basin 7, and be utilized again in wet dedusting process
In, save water source.
The embodiment two that the utility model additionally provides exhaust treatment system is generated as shown in Fig. 2,5 by heat pump system
Power generation of the high-temperature gas 12 for power station 13 used in there are four heat pump systems, and the heat absorbing units 41 of each heat pump system around
Exhaust pipe road is arranged circumferentially.Certainly, in other embodiments, heat pump system can there are three or five or six
More than a.The power of heat pump system be sufficient for cooling require when, heat pump system even can be one.
In the embodiment of above two processing system, dust-extraction unit is bag filter, and Wet-way dust-collector is that spray fills
It sets, certainly, in other embodiments, dust-extraction unit may be that cyclone dust collectors are either electrical dust collector device or are electric bag
Dust-extraction unit, Wet-way dust-collector can be by settling tank filtering or be cleaning dust device.
It can be effectively by heat recovery in tail gas, while in wet method using the kiln exhaust treatment system of the utility model
Before dedusting by exhaust temperature be reduced to 55 °C or less it is even lower, be conducive to saving water source in wet dedusting process in this way, have
Haze is effectively controlled in effect dedusting.
Claims (6)
1. kiln exhaust treatment system, which is characterized in that include the dedusting for being dusted processing to the xeothermic tail gas of introducing
It is device, at least one for carrying out the heat pump system of absorbing and cooling temperature processing to the tail gas after dust removal process and for heat pump system
Processed tail gas of uniting is dusted the Wet-way dust-collector of processing, the heat absorption list of the air outlet connection heat pump system of dust-extraction unit
First air inlet, the air inlet of the heat absorbing units air outlet connection Wet-way dust-collector of heat pump system.
2. kiln exhaust treatment system according to claim 1, which is characterized in that the dust-extraction unit is bag filter
Or electrical dust collector device or electric bag mixed dust removal device or cyclone dust collector.
3. kiln exhaust treatment system according to claim 1, which is characterized in that more than there are two the heat pump systems,
In more than two heat pump systems, there are the heat absorbing units of at least two heat pump systems to be set up in parallel along gas flow paths, Huo Zheyou
The heat absorbing units of at least two heat pump systems are set up in parallel in the circumferential direction on exhaust pipe road.
4. kiln exhaust treatment system according to claim 3, which is characterized in that more than there are two the heat pump systems,
The heat absorbing units of each heat pump system are set up in parallel along gas flow paths.
5. kiln exhaust treatment system according to any one of claims 1-4, which is characterized in that the wet dedusting dress
It is set to spray equipment, the recycling sink of the spray equipment is connected to sedimentation basin and the water after spray can be made to flow into sedimentation basin
In.
6. kiln exhaust treatment system according to claim 5, which is characterized in that kiln exhaust treatment system further include with
Sedimentation basin is connected to and for the clear water reserviors of the upper layer clear water outflow in sedimentation basin, and clear water reserviors are connected to spray equipment and pass through feed pipe
Road direction spray equipment supplies water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856011.9U CN207755920U (en) | 2017-07-14 | 2017-07-14 | A kind of kiln exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856011.9U CN207755920U (en) | 2017-07-14 | 2017-07-14 | A kind of kiln exhaust treatment system |
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| Publication Number | Publication Date |
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| CN207755920U true CN207755920U (en) | 2018-08-24 |
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| CN201720856011.9U Active CN207755920U (en) | 2017-07-14 | 2017-07-14 | A kind of kiln exhaust treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314686A (en) * | 2017-07-14 | 2017-11-03 | 河南省德耀节能科技股份有限公司 | A kind of kiln exhaust gas treating method and system |
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2017
- 2017-07-14 CN CN201720856011.9U patent/CN207755920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314686A (en) * | 2017-07-14 | 2017-11-03 | 河南省德耀节能科技股份有限公司 | A kind of kiln exhaust gas treating method and system |
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