CN209307309U - A kind of dust-laden gas processing system containing pitch coal - Google Patents
A kind of dust-laden gas processing system containing pitch coal Download PDFInfo
- Publication number
- CN209307309U CN209307309U CN201822134223.3U CN201822134223U CN209307309U CN 209307309 U CN209307309 U CN 209307309U CN 201822134223 U CN201822134223 U CN 201822134223U CN 209307309 U CN209307309 U CN 209307309U
- Authority
- CN
- China
- Prior art keywords
- tar
- dust
- processing system
- coal gas
- cooler
- 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.)
- Active
Links
Classifications
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to a kind of dust-laden gas processing systems containing pitch coal.The processing system includes coal gas transfer passage, dust-extraction unit is serially connected on coal gas transfer passage, the downstream connection of dust-extraction unit has tar recovery system, tar recovery system includes the cooling device that cooling medium flows to reverse coal gas conveying direction setting, cooling device includes steam superheater, steam superheater is connected with for collecting the tar pool that tar is precipitated, tar recovery system further includes the tar cooler that the upstream of cooling medium flow direction of steam superheater is arranged in, the tar import of tar cooler connects tar pool, tar outlet connects spray head, spray head is in the coal gas transfer passage in steam superheater and is used for coal gas spraying cooling tar.The processing system can be used for solving the problem of processing system in the prior art making entire processing system because individual tar pool cooling line is arranged the heat waste that structure is complicated and recycles from tar.
Description
Technical field
The utility model relates to a kind of dust-laden gas processing systems containing pitch coal.
Background technique
Gas cleaning system is widely used in various Gas Productions and uses in system, specifically includes coking producer gas, hair
The purification and tar recovery process of the coal gas such as raw producer gas, pyrolysis producer gas.
It is recorded in the Chinese patent application file that the publication No. that on November 27th, 2013 announces is CN103409174A
A kind of cooling coke tar recovery system of low consumption water-gas and method, the recovery system include coal gas transfer passage, and coal gas conveying is logical
Tar spray column, level-one electrical tar precipitator, inter cooler and second level electric fishing light oil device, tar spray column, one have been sequentially connected in series in road
Grade electrical tar precipitator, inter cooler and second level electric fishing light oil device lower part are connected to individual tar pool；Tar spray column is by tower
The tar of interior spray low temperature reduces the temperature of coal gas, and then is precipitated the tar in coal gas, and the tar in tar spray column is most
It flows into tar pool eventually, cooling line is connected in tar pool, tar is cooled down, cooling line connects cooling tower, after cooling
Tar a portion is pumped into tar spray column by tar circulation and continues to cool down the coal gas in tar spray column；It is sprayed from tar
The coal gas gone out in leaching tower successively enters level-one electrical tar precipitator, inter cooler and second level electric fishing light oil device, and coal gas is further precipitated
In tar, and finally discharge be free of tar coal gas.
Although can be very good by way of the spraying cooling tar into tar spray column to coal in above-mentioned recovery system
Gas is cooled down and is precipitated the tar in coal gas, but is sprayed for spraying into the cooling tar in tar spray column from tar
Drench the tar pool of tower lower part, the tar in order to make the temperature of the tar in tar pool meet requirement, in above-mentioned recovery system
It has accessed individual cooling line in pond to cool down tar, when practical set also needs to consider the mounting structure of cooling line
And occupied space, the structure that will lead to total system is more complicated, and is sent directly into cooling tower by the cooling water of tar pool
It is interior, it is not used to the heat recycled from tar pool, causes the waste of heat.
Utility model content
It is in the prior art for solving the purpose of the utility model is to provide a kind of dust-laden gas processing system containing pitch coal
Processing system because individual tar pool cooling line is arranged makes entire processing system, and structure is complicated, and recycled from tar
The problem of heat waste.
To achieve the above object, dust-laden gas processing system containing pitch coal described in the utility model uses following technical side
Case: the processing system includes coal gas transfer passage, and dust-extraction unit, the downstream connection of dust-extraction unit are serially connected on coal gas transfer passage
There is tar recovery system, tar recovery system includes the cooling device that cooling medium flows to reverse coal gas conveying direction setting, cold
But device includes steam superheater, and steam superheater is connected with for collecting the tar pool that tar is precipitated, and tar recovery system is also
The tar cooler for the upstream that cooling medium including steam superheater is arranged in flows to, the tar import connection of tar cooler
Tar pool, tar outlet connect spray head, and spray head is in the coal gas transfer passage in steam superheater and is used for coal gas
Spraying cooling tar.
The beneficial effect of dust-laden gas processing system containing pitch coal described in the utility model is: the tar of the processing system returns
The cooling in cooling device is utilized by the way that tar cooler is arranged in tar recovery system including cooling device in receiving apparatus
Medium cools down the tar in tar pool, and then tar after cooling is sent into steam superheater, it is only necessary to will
Tar cooler accesses in the flow pipe of cooling medium, is exchanged heat and is dropped to tar by the cooling medium in flow pipe
Temperature carries out cooling cooling line and cooling medium source to the tar in tar pool without being separately provided, and can make entire
The structure of processing system is relatively simple；In addition, the cooling medium for flowing into tar cooler heats up after exchanging heat, continue to steam superheating
Coal gas in device carries out heat exchange cooling, and capacity usage ratio is high.
Further, cooling device further includes being serially connected in the downstream of steam superheater in coal gas transfer passage and being located at tar
The water cooler of the upstream of the cooling medium flow direction of cooler.
Beneficial effect improved in this way is: by the way that water cooler is arranged, further cooling down to coal gas, is precipitated simultaneously
Tar, and cooling medium is conveyed to tar cooler by water cooler.
Further, water cooler is sequentially serially connected at least two-stage.
Beneficial effect improved in this way is: water cooler more than setting two-stage can make the coal in coal gas transfer passage
Air cooling is more abundant, and tar is precipitated more abundant.
Further, the end of coal gas transfer passage is connected with electrical tar precipitator, and electrical tar precipitator is connected to tar pool.
Beneficial effect improved in this way is: by adding electrical tar precipitator, can further remove the tar in coal gas.
Further, processing system further include be connected to the cooling medium exit of steam superheater, for that will cool down
The steam conveying pipeline that the steam generated after media for heat exchange is collected.
Beneficial effect improved in this way is: by the way that steam conveying pipeline is arranged, guaranteeing the steaming gone out from steam superheater
Vapour, which is unlikely to spill into, to be caused to waste in air.
Further, steam conveying pipeline is connected with steamdrum, and there is steamdrum the steam for connecting with tar pool to add
Hot coil.
Beneficial effect improved in this way is: by the way that steamdrum is arranged, what can be oriented by steamdrum uses steaming to needs
The place conveying steam of vapour, steamdrum have the steam(-)coil that connect with tar pool, can to the tar in tar pool into
Row heating guarantees that tar can normally flow in pipeline.
Further, dust-extraction unit includes the high-temperature cyclone dust extractor and high temperature electrostatic sequentially concatenated along coal gas conveying direction
Deduster, high-temperature cyclone dust extractor and/or high temperature electrostatic deduster have parallel with one another or concatenated two or more.
Beneficial effect improved in this way is: being matched by setting more high-temperature cyclone dust extractors and high temperature electrostatic deduster
It closes, it is ensured that the dust in coal gas is removed more thorough.
Detailed description of the invention
Fig. 1 is the system schematic of the embodiment 1 of dust-laden gas processing system containing pitch coal described in the utility model.
In attached drawing: 1- high-temperature cyclone dust extractor, 2- high temperature electrostatic deduster, 3- steamdrum, 4- steam superheater, 5- tar
Pump, 6- tar circulating pump, 7- tar cooler, 8- level-one cooler, the first tar pool of 9-, 10- secondary coolers, 11- three-level
Cooler, 12- desalination water pot, 13- desalination pump, 14- electrical tar precipitator, 15- gas-blowing engine, the second tar pool of 16-.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.
As shown in Figure 1, the embodiment 1 of dust-laden gas processing system containing pitch coal described in the utility model, including coal gas are defeated
Channel is sent, a high-temperature cyclone dust extractor 1 and a high temperature electrostatic deduster 2, high temperature are sequentially serially connected in coal gas transfer passage
Cyclone dust collectors 1 and high temperature electrostatic deduster 2 are used to remove the dust in coal gas, guarantee to enter in the coal gas in follow up device
Dust content meets the requirements, and is sent to boiler combustion by the dust particles that high-temperature cyclone dust extractor 1 and high temperature electrostatic deduster 2 remove
It burns.Certainly, in other embodiments, the quantity of high-temperature cyclone dust extractor and high temperature electrostatic deduster is also possible to more than one,
Multiple high-temperature cyclone dust extractors can be with serial or parallel connection together, and multiple high temperature electrostatic dedusters can equally be existed with serial or parallel connection
Together；Dust-extraction unit can also be other equipment, such as tubular type membrane filter.
The downstream connection of coal gas transfer passage high temperature electrostatic precipitator 2 has steam superheater 4, from high temperature electrostatic deduster
The coal gas come out in 2 enters in steam superheater 4 from the lower part of steam superheater 4, and is discharged from the upper end of steam superheater 4；
The top of steam superheater 4 is provided with the spray head of spraying cooling tar, sprays the cooling into steam superheater 4 by spray head
Tar and coal gas exchange heat, and are precipitated the tar in coal gas while reducing the temperature of coal gas, the cooling tar that spray head sprays
Derived from tar cooler 7；The bottom of steam superheater 4 be equipped with the first tar pool 9, through spray head spray tar and from coal gas
The tar of precipitation eventually enters into the first tar pool 9.
The downstream of steam superheater 4 has been sequentially connected with level-one cooler 8, secondary coolers 10, three in coal gas transfer passage
Grade cooler 11 and electrical tar precipitator 14, it is cooling that the coal gas being discharged from steam superheater 4 sequentially passes through level-one cooler 8, second level
Device 10, three-level cooler 11 and electrical tar precipitator 14, level-one cooler 8, secondary coolers 10, three-level cooler 11 and electric tar
Oily device 14 is all connected with the second tar pool 16, catches precipitation by the cooling precipitation of coolers at different levels and by 14 electric fishing of electrical tar precipitator
Tar enters the second tar pool 16.
The coal gas being discharged from electrical tar precipitator 14 is satisfactory clean gas, and clean gas passes through gas-blowing engine
15 are sent at downstream user.
Above-mentioned steam superheater 4, level-one cooler 8, secondary coolers 10, three-level cooler 11 and electrical tar precipitator 14 are equal
For the equipment in tar recovery system.
Tar recovery system further includes cooling device, and cooling device includes the desalination water pot 12 for being loaded with room temperature desalted water,
The outlet of desalination water pot 12 is connected with desalination pump 13, pressurizes through desalination pump 13, and room temperature desalted water is sent into three-level cooler
In 11 cooling line, the coal gas in room temperature desalted water and three-level cooler 11 exchanges heat, and gas temperature is made to reduce and make in coal gas
Tar be precipitated, while desalted water temperature increase.
From the cooling line that the desalted water flowed out in three-level cooler 11 enters secondary coolers 10, desalted water and second level
Coal gas heat exchange in cooler 10, reduces gas temperature and the tar in coal gas is precipitated, the temperature of desalted water further rises
It is high.
From the cooling line that the desalted water flowed out in secondary coolers 10 enters level-one cooler 8, desalted water and level-one
Coal gas heat exchange in cooler 8, reduces gas temperature and the tar in coal gas is precipitated, the temperature of desalted water further rises
It is high.
Enter in tar cooler 7 from the desalted water flowed out in level-one cooler 8, tar cooler 7 includes tar entrance
And tar outlet, tar entrance connect the first tar pool 9 and make the part in the first tar pool 9 by the pressurization of tar circulating pump 6
Tar enters in tar cooler 7, into the tar in tar cooler 7 and enters the desalted water heat exchange in tar cooler 7,
It reduces the temperature of tar and the temperature of desalted water is made further to increase and generate steam；The tar outlet of tar cooler 7 point
Two-way is connected to the spray head in steam superheater 4 all the way, and another way is connected to the second tar pool 16, finally cold via tar
But the tar fraction after cooling of device 7 is sent into the second tar pool 16, and part is sent into steam superheater 4 for exchanging heat with coal gas.
It is connected to above by by tar cooler 7 with the cooling line of level-one cooler 8, using in level-one cooler 8
Cooling medium cools down tar, does not need that additional cooling line and cooling water source is specially arranged, makes entire processing system
Structure is relatively simple, and the cooling medium in tar recovery system is also made to be fully utilized.
Enter in steam superheater 4 from the steam flowed out in tar cooler 7, the coal gas in steam and steam superheater 4
Heat exchange, reduces the temperature of coal gas and the tar in coal gas is precipitated, while the temperature of steam further increases.
In the course of work of above-mentioned cooling device, desalted water generates the position of steam determines according to actual conditions, with coal gas
Temperature, the factors such as the length of the cooling line of desalted water and the temperature of desalted water in desalination water pot 12 are related in cooler,
It not necessarily is and steam is become by desalted water in tar cooler 7, can also be and become steam in other equipment.
Entering in steamdrum 3 from the steam being discharged in steam superheater 4, steamdrum 3 is equipped with the pipeline of conveying steam outward,
Steamdrum 3 is additionally provided with the heating coil for being heated to the tar in the first tar pool 9 and the second tar pool 16, steamdrum
Vapor portion in 3 is sent to be used elsewhere, is partially sent in the first tar pool 9 and the second tar pool 16 and is added to tar
Heat is to keep the mobility of tar.The steaming after exchanging heat with tar flowed out from the first tar pool 9 and the second tar pool 16
Vapour is led in desalination water pot 12.
Part tar in second tar pool 16 is admitted in the first tar pool 9 by the pressurization of tar pump 5, other tar
It is sent to other and needs the place using tar.
Above-mentioned steam superheater 4, level-one cooler 8, secondary coolers 10, three-level cooler 11 and tar cooler 7 are equal
The equipment belonged in cooling device (part of equipment while belonging to the equipment in tar recovery system, i.e., same equipment tool
There are two types of purposes), wherein level-one cooler 8, secondary coolers 10 and three-level cooler 11 constitute water cooler.It needs to illustrate
It is that it is logical that steam superheater 4, level-one cooler 8, secondary coolers 10 and three-level cooler 11 should all have Cooling Water to pass through
Road and give gas by channel, and cooling water and coal gas can exchange heat, and tar cooler 7 should have Cooling Water logical
The channel crossed and the channel passed through for tar, and cooling water and tar can exchange heat.
In other embodiments, the series of water cooler may not be three-level, can be level-one, two-stage, level Four or its
His series is arranged with specific reference to actual needs.
In other embodiments, it can also be not provided with water cooler, or other cooling devices, such as air cooling equipment are set
Deng.
In other embodiments, the end of coal gas transfer passage can also be not provided with electrical tar precipitator.
In other embodiments, it can be not provided with steam conveying pipeline on steam superheater, can directly be discharged into steam
In air.
In other embodiments, it can be not provided with steamdrum, steam, which is directly sent to needs, by steam conveying pipeline makes
Place or steamdrum are not provided with heating coil, and the heating of tar pool is realized by other heating devices.
In other embodiments, the tar in tar cooler can also be directed to the second tar pool or the external world
Tar is equally met the requirements.
Claims (7)
1. a kind of dust-laden gas processing system containing pitch coal, including coal gas transfer passage, dedusting dress is serially connected on coal gas transfer passage
It sets, the downstream connection of dust-extraction unit has tar recovery system, and tar recovery system includes that cooling medium flows to reverse coal gas conveying
The cooling device of direction setting, cooling device include steam superheater, and steam superheater, which is connected with, is precipitated tar for collecting
Tar pool, which is characterized in that tar recovery system further includes the coke that the upstream of cooling medium flow direction of steam superheater is arranged in
Oil cooler, the tar import of tar cooler connect the tar pool, and tar outlet connects spray head, and the spray head is in
In coal gas transfer passage in steam superheater and it is used for coal gas spraying cooling tar.
2. dust-laden gas processing system containing pitch coal according to claim 1, which is characterized in that the cooling device further includes
It is serially connected in the downstream of steam superheater and the water positioned at the upstream that the cooling medium of tar cooler flows in coal gas transfer passage
Cooler.
3. dust-laden gas processing system containing pitch coal according to claim 2, which is characterized in that the water cooler is sequentially gone here and there
It is connected at least two-stage.
4. dust-laden gas processing system containing pitch coal according to claim 1 or 2 or 3, which is characterized in that the coal gas conveying
The end in channel is connected with electrical tar precipitator, and electrical tar precipitator is connected to tar pool.
5. dust-laden gas processing system containing pitch coal according to claim 1 or 2 or 3, which is characterized in that processing system is also wrapped
Include the steam that steam that be connected to the cooling medium exit of steam superheater, for generating after cooling medium exchanges heat is collected
Transfer pipeline.
6. dust-laden gas processing system containing pitch coal according to claim 5, which is characterized in that the steam conveying pipeline connects
It is connected to steamdrum, the steamdrum has the steam(-)coil for connecting with tar pool.
7. dust-laden gas processing system containing pitch coal according to claim 1 or 2 or 3, which is characterized in that the dust-extraction unit
Including the high-temperature cyclone dust extractor and high temperature electrostatic deduster sequentially concatenated along coal gas conveying direction, the high-temperature cyclone dust extractor
And/or high temperature electrostatic deduster have it is parallel with one another or concatenated two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822134223.3U CN209307309U (en) | 2018-12-18 | 2018-12-18 | A kind of dust-laden gas processing system containing pitch coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822134223.3U CN209307309U (en) | 2018-12-18 | 2018-12-18 | A kind of dust-laden gas processing system containing pitch coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209307309U true CN209307309U (en) | 2019-08-27 |
Family
ID=67677622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822134223.3U Active CN209307309U (en) | 2018-12-18 | 2018-12-18 | A kind of dust-laden gas processing system containing pitch coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209307309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349475A (en) * | 2020-04-15 | 2020-06-30 | 浙江大学 | Pyrolysis gas fractional condensation and heat gradient utilization system and method |
-
2018
- 2018-12-18 CN CN201822134223.3U patent/CN209307309U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349475A (en) * | 2020-04-15 | 2020-06-30 | 浙江大学 | Pyrolysis gas fractional condensation and heat gradient utilization system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102796537B (en) | System and method for recovering superheated steam of waste heat of raw gas of combined coke oven | |
| CN103952187B (en) | Two-part coal tar recovering system and recovery method | |
| CN204400934U (en) | A kind of biomass gasification burning deep purifying device | |
| CN104388128B (en) | System and method for dedusting of pyrolysis raw gas and tar recycling employing oil-cooling | |
| CN101348735B (en) | Fluidized bed cracking gas purification and coke tar recovery system and method | |
| CN104927925B (en) | Biomass synthesis gas super-pressure cooling and purifying technique and its equipment for liquefaction | |
| CN103965971A (en) | Twin tower coal tar recycling system and twin tower coal tar recycling method | |
| MX2014007806A (en) | Biomass syngas purification process under negative pressure for producing oil and system configuration thereof. | |
| CN209307309U (en) | A kind of dust-laden gas processing system containing pitch coal | |
| CN102816573B (en) | Coke-oven single novel bridge pipe raw gas waste-heat recovery device | |
| CN103265979B (en) | Technology and device for cooling and purifying high-temperature and high-pressure biomass synthesis gas | |
| CN206295742U (en) | A kind of dust-laden is pyrolyzed the full oil wash system of oil gas | |
| CN204911096U (en) | High temperature oil gas removes dust and cools off scrubbing tower | |
| CN204779506U (en) | High temperature dust -laden coal gas dust removal purification system | |
| CN107163994B (en) | Conversion absorption equipment, raw coke oven gas recycling system and raw coke oven gas recycling method | |
| CN109554200A (en) | A kind of dust-laden gas disposal containing pitch coal method | |
| CN106370028A (en) | Coking raw gas waste heat recovery method and apparatus | |
| CN202808702U (en) | Combined system for recovering superheated steam from afterheat of coke-oven raw gas | |
| CN206109331U (en) | Raw gas dust collection device | |
| CN213771923U (en) | Vertical multi-section heating and distillation integrated washing oil regeneration equipment | |
| CN101893388A (en) | Electric furnace double dust collection and waste heat recovery system and method | |
| CN204958814U (en) | Fine coal low temperature pyrolysis system | |
| CN207891314U (en) | A kind of environment-friendly type clean manufacturing crude benzol slag-draining device | |
| CN203419893U (en) | Nitrogen backblowing circulating system for purification of TSA coke oven gas | |
| CN209900993U (en) | Flue gas of sour reproduction technology takes off white system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |