CN107261735A - A kind of coal desulfurization gypsum rain eliminates system - Google Patents
A kind of coal desulfurization gypsum rain eliminates system Download PDFInfo
- Publication number
- CN107261735A CN107261735A CN201710715591.4A CN201710715591A CN107261735A CN 107261735 A CN107261735 A CN 107261735A CN 201710715591 A CN201710715591 A CN 201710715591A CN 107261735 A CN107261735 A CN 107261735A
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- China
- Prior art keywords
- shell
- wet
- heat exchanger
- chimney
- spraying
- 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
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- 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
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/102—Intercepting solids by filters electrostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/50—Sorption with semi-dry devices, e.g. with slurries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
System, including wet desulfuration tower, wet-esp unit, spraying and dedusting unit, shell-and-tube heat exchanger and the chimney being sequentially connected are eliminated the present invention relates to a kind of coal desulfurization gypsum rain.The spraying and dedusting unit includes spray column and circulating pump, and spray column includes tower body and is arranged on the sedimentation basin of tower body bottom.Funnelform separator is provided with the sedimentation basin, sedimentation basin is divided into upper space and lower space by the separator, the upper space is connected by delivery pipe with sewage sludge storage groove, lower space is connected by suction line with the suction inlet of the circulating pump, and the outlet of the circulating pump is connected by discharge line with the mouth spray on tower body.The shell side of the shell-and-tube heat exchanger is provided with low-pressure steam inlet and condensation-water drain, and the condensation-water drain is connected by condensed water discharge pipe with the delivery pipe.The present invention's is simple in construction, can effectively eliminate coal desulfurization gypsum rain phenomenon.
Description
Technical field
System is eliminated the present invention relates to fire coal boiler fume processing technology field, more particularly to a kind of coal desulfurization gypsum rain
System.
Background technology
At present, most of desulfurization system for thermal power plant uses limestone-gypsum wet desulfuration technique, eliminates gas-gas
Heat exchanger（Gas gasheater, GGH）Device, directly discharges neat stress from chimney, and chimney uses inside lining anti-corrosive material, shape
The scheme discharged into " Wet chimney ".After desulphurization system without GGH devices is gone into operation, though GGH blockage problem is efficiently avoid,
But due to the reheating measure of " Wet chimney " smokeless, exhaust gas temperature is relatively low, neat stress of the absorption tower outlet with saturation water is in discharge
Process partial condensation formation drop, flue gas from throat discharge after can not effectively lifting, be diffused into air, cause cancel
Flue gas can not dissipate rapidly after GGH devices, particularly when local temperature, air pressure are relatively low or the period in thick weather, flue gas
The dust and drop of middle carrying are gathered near chimney, fall earthward to form " gypsum rain " or acid rain, to power plant and surrounding enviroment
Produce pollution, or even etching apparatus.
The content of the invention
For the above mentioned problem of prior art, it is an object of the invention to provide one kind is simple in construction, combustion can be effectively eliminated
The system of coal desulfurization gypsum rain.
In order to solve the above-mentioned technical problem, technical scheme is as follows：
A kind of coal desulfurization gypsum rain eliminates system, including wet desulfuration tower, wet-esp unit, spraying and dedusting unit, pipe
Shell heat exchanger and chimney, the low-temperature flue gas after the wet desulfuration tower processing enter the wet-esp by the first pipeline
Unit, the gas outlet of the wet-esp unit is connected by the second pipeline with the spraying and dedusting unit, and the spray is removed
Flue gas after dirt cell processing enters the tube side of the shell-and-tube heat exchanger by the 3rd pipeline, adds through the shell-and-tube heat exchanger
Flue gas after heat is connected by the 4th pipeline with the chimney, and the chimney discharges the flue gas after processing,
The spraying and dedusting unit includes spray column and circulating pump, and the spray column includes tower body and is arranged on the tower body bottom
Sedimentation basin, funnelform separator is provided with the sedimentation basin, the sedimentation basin is divided into top by the separator
Space and lower space, the upper space are connected by delivery pipe with sewage sludge storage groove, and the lower space passes through suction line
Road is connected with the suction inlet of the circulating pump, and the outlet of the circulating pump passes through the mouth spray on discharge line and the tower body
Connection,
The shell side of the shell-and-tube heat exchanger is provided with low-pressure steam inlet and condensation-water drain, and the condensation-water drain passes through cold
Solidifying water discharge pipe is connected with the delivery pipe.
Further, the 4th pipeline is provided with air-introduced machine.
Further, the distance on the exhaust outlet of the chimney and ground is not less than 15 meters.
A kind of coal desulfurization gypsum rain of the present invention eliminates system, has the advantages that：
The present invention is simple in construction, by the wet-esp unit and spraying and dedusting unit that are sequentially connected to being taken in flue gas after desulfurization
The little particle such as gypsum of band dust has carried out sufficiently effective removal, is conducive to avoiding the appearance of follow-up gypsum rain.
The present invention is heated by shell-and-tube heat exchanger to the low-temperature flue gas for entering chimney, and the condensation by low temperature neatly
The delivery pipe for the dust sludge that water is separated by pipeline with discharge precipitation is connected, can be to anti-while condensed water is reclaimed
Only blocking of the sludge to pipeline.
Brief description of the drawings
, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Its accompanying drawing.
Fig. 1 is the structural representation that the coal desulfurization gypsum rain that one embodiment of the invention is provided eliminates system；
In figure：11- wet desulfuration towers, 12- wet-esp units, 13- spraying and dedusting units, 14- flue gas mixed cells, 15-
Chimney, 16- air-introduced machines, 17- separators, 18- sewage sludge storage grooves, the pipelines of 21- first, the pipelines of 22- second, the pipelines of 23- the 3rd,
The pipelines of 24- the 4th, 26- delivery pipes, 27- suction lines, 28- discharge lines, 29- condensed water discharge pipes, 131- spray columns, 132-
Circulating pump, 131a- tower bodies, 131b- sedimentation basins, 171- upper spaces, 172- lower spaces, 141- low-pressure steam inlets, 142-
Condensation-water drain.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
Embodiment
The present embodiment provides a kind of simple in construction, can effectively eliminate the device of coal desulfurization gypsum rain, please specifically join
Read the structural representation shown in Fig. 1.
The coal desulfurization gypsum rain, which eliminates system, includes wet desulfuration tower 11, wet-esp unit 12, spraying and dedusting list
Member 13, shell-and-tube heat exchanger 14 and chimney 15.Wherein, wet desulfuration tower 11 is used to remove the sulfur dioxide impurities gas in flue gas
Body, wet-esp unit 12 and the formation two-stage dust removal of spraying and dedusting unit 13, can effectively remove in flue gas after desulfurization and carry secretly
The dust granules such as gypsum, shell-and-tube heat exchanger 14 is used to heat the flue gas after cooling, to avoid follow-up gypsum rain
Occur.
Low-temperature flue gas after the wet desulfuration tower 11 is handled enters the wet-esp unit by the first pipeline 21
12, the gas outlet of the wet-esp unit 12 is connected by the second pipeline 22 with the spraying and dedusting unit 13, the spray
The tube side that the flue gas after dust removing units 13 are handled enters the shell-and-tube heat exchanger 14 by the 3rd pipeline 23 is drenched, through the shell
Flue gas after formula heat exchanger 14 is heated is connected by the 4th pipeline 24 with the chimney 15, and the chimney 15 is by the flue gas after processing
Discharge.
In one embodiment, in order to avoid the gas discharged from chimney 15 is to environmental effects, the chimney 15
Exhaust outlet and ground distance be not less than 15 meters.
In one embodiment, in order to ensure that the flue gas after processing can be discharged smoothly, in the 4th pipeline 25
Air-introduced machine 16 is provided with, the air inlet of the air-introduced machine 16 is connected with shell-and-tube heat exchanger 14, the gas outlet of air-introduced machine 16 and chimney
15 connections.
In one embodiment, the spraying and dedusting unit 13 includes spray column 131 and circulating pump 132, the spray
Tower 131 includes tower body 131a and is arranged in the sedimentation basin 131b, the sedimentation basin 131b of the tower body 131a bottoms provided with leakage
Bucket-shaped separator 17.The separator 17 can intercept the dust sprayed in liquid（, should due to the effect of spray liquid
Dust forms sludge）.
The sedimentation basin 131b is divided into upper space 171 and lower space 172, the top by the separator 17
Space 171 is connected by delivery pipe 26 with sewage sludge storage groove 18, and the lower space 172 passes through suction line 27 and the circulation
The suction inlet connection of pump 132, the outlet of the circulating pump 132 passes through the mouth spray on discharge line 28 and the tower body 131a
Connection, it is achieved thereby that the recycling of spray liquid.
In one embodiment, the shell side of the shell-and-tube heat exchanger 14 is provided with low-pressure steam inlet 141 and condensation
Water out 142, the condensation-water drain 142 is connected by condensed water discharge pipe 29 with the delivery pipe 26.
A kind of coal desulfurization gypsum rain of the present invention eliminates system, has the advantages that：
The present invention is simple in construction, by the wet-esp unit and spraying and dedusting unit that are sequentially connected to being taken in flue gas after desulfurization
The little particle such as gypsum of band dust has carried out sufficiently effective removal, is conducive to avoiding the appearance of follow-up gypsum rain.
The present invention is heated by shell-and-tube heat exchanger to the low-temperature flue gas for entering chimney, and by the condensation of Low Temperature Steam
The delivery pipe for the dust sludge that water is separated by pipeline with discharge precipitation is connected, can be to anti-while condensed water is reclaimed
Only blocking of the sludge to pipeline.
Described above has fully disclosed the embodiment of the present invention.It is pointed out that being familiar with the field
Scope of any change that technical staff is done to the embodiment of the present invention all without departing from claims of the present invention.
Correspondingly, the scope of claim of the invention is also not limited only to previous embodiment.
Claims (3)
1. a kind of coal desulfurization gypsum rain eliminates system, it is characterised in that including wet desulfuration tower（11）, wet-esp unit
（12）, spraying and dedusting unit（13）, shell-and-tube heat exchanger（14）And chimney（15）, the wet desulfuration tower（11）It is low after processing
Warm flue gas passes through the first pipeline（21）Into the wet-esp unit（12）, the wet-esp unit（12）Outlet
Mouth passes through the second pipeline（22）With the spraying and dedusting unit（13）Connection, the spraying and dedusting unit（13）Flue gas after processing
Pass through the 3rd pipeline（23）Into the shell-and-tube heat exchanger（14）Tube side, through the shell-and-tube heat exchanger（14）After heating
Flue gas passes through the 4th pipeline（24）With the chimney（15）Connection, the chimney（15）By the flue gas discharge after processing,
The spraying and dedusting unit（13）Including spray column（131）And circulating pump（132）, the spray column（131）Including tower body
（131a）Be arranged on the tower body（131a）The sedimentation basin of bottom（131b）, the sedimentation basin（131b）It is interior to be provided with funnelform
Separator（17）, the separator（17）By the sedimentation basin（131b）It is divided into upper space（171）And lower space
（172）, the upper space（171）Pass through delivery pipe（26）With sewage sludge storage groove（18）Connection, the lower space（172）It is logical
Cross suction line（27）With the circulating pump（132）Suction inlet connection, the circulating pump（132）Outlet pass through discharge pipe
Road（28）With the tower body（131a）On mouth spray connection,
The shell-and-tube heat exchanger（14）Shell side be provided with low-pressure steam inlet（141）And condensation-water drain（142）, it is described cold
Solidifying water out（142）Pass through condensed water discharge pipe（29）With the delivery pipe（26）Connection.
2. a kind of coal desulfurization gypsum rain according to claim 1 eliminates system, it is characterised in that the 4th pipeline
（24）It is provided with air-introduced machine（16）.
3. a kind of coal desulfurization gypsum rain according to claim 1 eliminates system, it is characterised in that the chimney（15）'s
The distance on exhaust outlet and ground is not less than 15 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710715591.4A CN107261735A (en) | 2017-08-20 | 2017-08-20 | A kind of coal desulfurization gypsum rain eliminates system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710715591.4A CN107261735A (en) | 2017-08-20 | 2017-08-20 | A kind of coal desulfurization gypsum rain eliminates system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107261735A true CN107261735A (en) | 2017-10-20 |
Family
ID=60080465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710715591.4A Pending CN107261735A (en) | 2017-08-20 | 2017-08-20 | A kind of coal desulfurization gypsum rain eliminates system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107261735A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489091A (en) * | 2011-10-27 | 2012-06-13 | 上海多尔流体设备有限公司 | Dry type dust recovery device for amino acid such as lysine |
| CN204543878U (en) * | 2015-02-04 | 2015-08-12 | 昆明普利惠节能技术有限公司 | A kind of system eliminating boiler desulfurization gypsum rain phenomenon |
-
2017
- 2017-08-20 CN CN201710715591.4A patent/CN107261735A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489091A (en) * | 2011-10-27 | 2012-06-13 | 上海多尔流体设备有限公司 | Dry type dust recovery device for amino acid such as lysine |
| CN204543878U (en) * | 2015-02-04 | 2015-08-12 | 昆明普利惠节能技术有限公司 | A kind of system eliminating boiler desulfurization gypsum rain phenomenon |
Non-Patent Citations (2)
| Title |
|---|
| 江西省水资源管理中心: "《节水知识科普读物》", 30 September 2015, 中国水利水电出版社 * |
| 西安热工研究院: "《火电厂烟气污染物超低排放技术》", 30 June 2016, 中国电力出版社 * |
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| PB01 | Publication | ||
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Application publication date: 20171020 |