CN208532835U - A kind of Pulverized Coal Injection System with Fuzzy - Google Patents
A kind of Pulverized Coal Injection System with Fuzzy Download PDFInfo
- Publication number
- CN208532835U CN208532835U CN201820903959.XU CN201820903959U CN208532835U CN 208532835 U CN208532835 U CN 208532835U CN 201820903959 U CN201820903959 U CN 201820903959U CN 208532835 U CN208532835 U CN 208532835U
- Authority
- CN
- China
- Prior art keywords
- coal
- powder
- outlet
- collector
- pocket type
- 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
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model proposes a kind of Pulverized Coal Injection System with Fuzzy, including run coal bin, its outlet is connected with the import of feeder, the outlet of feeder is connected by coal spout with the coal feed point of coal pulverizer, the air inlet of coal pulverizer is connected by desiccant pipeline with fume generating furnace, the coal dust mouth that goes out of coal pulverizer is connected by powder pipeline processed with the import of pocket type coal collector, the exhaust smoke outlet of pocket type coal collector is connected with main exhaust fan and moisture absorption blower respectively by two branch pipes of powder exhaust pipe processed, main exhaust fan is connected with exhaust emission pipeline, pocket type coal collector bottom is connected by flexible connecting device with ash bucket, hopper bottom outlet is connected with breeze blowing tank.The utility model simplifies existing blast-furnace coal powder injection technique, while reducing equipment investment expense, reduces the height of coal injection device, and achieving the purpose that, which reduces coal powder injection facility total capital investment cost, uses.
Description
Technical field
The utility model belong to blast-furnace coal powder injection technical field more particularly to a kind of Pulverized Coal Injection System with Fuzzy.
Background technique
Blast-furnace coal powder injection facility is one of necessary auxiliary equipment of blast furnace iron-making process, mainly includes pulverized coal preparation and coal
Powder is blown two subsystems.It is pulverized coal bin in pulverized coal preparation and breeze blowing two parts intersection.The main function of pulverized coal bin is
Store coal dust, guarantee milling subsystem failure when or the short time overhaul when, uninterruptedly to pulverized coal injection in blast furnace.
Conventional pulverized-coal is prepared in subsystem, and pocket type coal collector separates coal dust with conveying gas, the coal dust of collection into
Enter ash bucket, then enters pulverized coal bin after flapper and powder sinking tube and store.Pocket type coal collector ash bucket is plus flapper and falls
The height of tube cell is typically no less than 15m, so that the total height of entire coal powder injection facility is very high, therefore, capital expenditure is high, cloth bag
Maintenance and maintenance difficulty increase.
Summary of the invention
The technical problem to be solved by the utility model is in view of the above problems, provide a kind of blast-furnace coal powder spray
Blow system, in the case where not changing blast-furnace coal powder injection step, with the ash bucket of pocket type coal collector also serve as pulverized coal warehouse come
Coal dust is stored, while reducing equipment investment expense, reduces the height of coal injection device main building, it is total to reach reduction coal powder injection facility
The purpose of capital cost.
The utility model solves technical solution used by above-mentioned technical problem: a kind of Pulverized Coal Injection System with Fuzzy,
It is characterized in that, including run coal bin, the outlet of the run coal bin is connected with the import of feeder, and the outlet of feeder passes through coal spout
It is connected with the coal feed point of coal pulverizer, the air inlet of coal pulverizer is connected by desiccant pipeline with fume generating furnace, and coal pulverizer goes out
Coal dust mouth is connected by powder pipeline processed with the import of pocket type coal collector, and the exhaust smoke outlet of pocket type coal collector passes through powder processed
Two branch pipes of exhaust pipe are connected with main exhaust fan and moisture absorption blower respectively, and main exhaust fan is connected with exhaust emission pipeline, bag
Formula coal collector bottom is connected with ash bucket, and hopper bottom outlet is connected with breeze blowing tank.
According to the above scheme, be respectively equipped on two branch pipes of the powder pipeline processed and powder exhaust pipe processed first isolating valve,
Second isolating valve, and third isolating valve,.
According to the above scheme, several thermometers or material surface measurement instrument is arranged in the ash bucket outer wall from top to bottom.
According to the above scheme, it is connected between pocket type coal collector bottom and ash bucket by flexible connecting device.
According to the above scheme, the flexible connecting device is metal bellows or rubber hose.
The beneficial effects of the utility model are: 1, a kind of Pulverized Coal Injection System with Fuzzy is provided, simplify pulverized coal injection in blast furnace work
Skill merges pocket type coal collector with pulverized coal bin, reduces equipment cost, reduces factory building height, saves construction investment；2, simplify
Pulverized coal injection in blast furnace technique reduces the probability of system equipment failure.
Detailed description of the invention
Fig. 1 is the device distribution schematic diagram of the utility model one embodiment.
Wherein: 1- run coal bin, 2- feeder, 3- coal spout, 4- fume generating furnace, 5- desiccant pipeline, 6- coal pulverizer, 7-
Powder pipeline processed, the first isolating valve, of 8-, 9- pocket type coal collector, 10- flexible connecting device, 11- ash bucket, 12- powder offgas duct
Road, the second isolating valve, of 13-, 14- exhaust emission pipeline, 15- third isolating valve, 16- main exhaust fan, 17- moisture absorption blower, 18- coal
Powder injection tank.
Specific embodiment
To more fully understand the utility model, the utility model work is further retouched with reference to the accompanying drawings and examples
It states.
As shown in Figure 1, a kind of Pulverized Coal Injection System with Fuzzy, including run coal bin 1, outlet are connected with the import of feeder 2,
The outlet of feeder is connected by coal spout 3 with the coal feed point of coal pulverizer 6, the air inlet of coal pulverizer pass through desiccant pipeline 5 and
Fume generating furnace 4 is connected, and the coal dust mouth that goes out of coal pulverizer is connected by powder pipeline 7 processed with the import of pocket type coal collector 9, pocket type
The exhaust smoke outlet of coal collector by two branch pipes of powder exhaust pipe 12 processed respectively with main exhaust fan 16 and moisture absorption blower 17
It is connected, main exhaust fan is connected with exhaust emission pipeline 14, and pocket type coal collector bottom is connected with ash bucket 11, and hopper bottom goes out
Mouth is connected with breeze blowing tank 18.
The first isolating valve, 8,13 and of the second isolating valve, are respectively equipped on two branch pipes of powder pipeline processed and powder exhaust pipe processed
Third isolating valve, 15.
Several thermometers are arranged in ash bucket outer wall from top to bottom, measure ash bucket charge level indirectly, can also install material surface measurement instrument,
Monitor ash bucket material position.
When needing to coal powder metering in ash bucket, increase flexible connecting device between pocket type coal collector and ash bucket
10, so as to the installation weighing electronic sensor on ash bucket.
Flexible connecting device is metal bellows or rubber hose, and metal bellows can be used welding manner and be attached,
Rubber hose can be used flange and be attached.
The core of this system is simplified to existing blast-furnace coal powder injection technique, and pulverized coal warehouse is eliminated, by pocket type coal
The ash bucket of powder collector doubles as pulverized coal warehouse.According to the storage coal dust amount that bf coal injection system needs, the ash met the requirements is designed
Bucket capacity product.Due to eliminating independent pulverized coal bin, the ash bucket of pocket type coal collector with coal pulverizer is connected to by pipeline,
Pulverized coal preparation system shut down when, in order to guarantee coal dust storage safety, prevent air from entering in pocket type coal collector, coal pulverizer with
First isolating valve, is set on powder pipeline processed between pocket type coal collector.Since pulverized coal preparation system is during preparing coal dust,
Most of moisture in raw coal is evaporated in flue gas, i.e., there are the biggish flue gases of humidity in pocket type coal collector, when flue gas temperature
Degree will condense after reducing, and condensed water will be absorbed by coal dust, and coal dust mobility is deteriorated, and influence breeze blowing.It is asked to solve this
Topic, while cancelling pulverized coal bin, increasing moisture absorption blower will be in ash bucket when moisture absorption blower is that solution milling subsystem is shut down
Vapor is discharged in time, prevents the vapor in ash bucket from condensing and making the coal dust moisture absorption.When milling subsystem operation, stop the moisture absorption
Blower.To prevent air from entering in pocket type coal collector, set on the branch pipe between pocket type coal collector and main exhaust fan
Set the second isolating valve,.
It is worth noting that: in pulverized coal injection in blast furnace, it not can be carried out the operation of replacement cloth bag in pocket type coal collector,
The job-shop of replacement cloth bag is carried out in blast furnace scheduled overhaul or annual overhaul.
Those skilled in the art should understand that can modify to technical solution of the present invention or equally replace
It changes, without departing from the objective and range of technical solution of the present invention, should all cover in protection scope of the present invention.
Claims (5)
1. a kind of Pulverized Coal Injection System with Fuzzy, which is characterized in that including run coal bin, the outlet of the run coal bin and feeder into
Mouth is connected, and the outlet of feeder is connected by coal spout with the coal feed point of coal pulverizer, and the air inlet of coal pulverizer passes through desiccant tube
Road is connected with fume generating furnace, and the coal dust mouth that goes out of coal pulverizer is connected by powder pipeline processed with the import of pocket type coal collector, bag
The exhaust smoke outlet of formula coal collector is connected with main exhaust fan and moisture absorption blower respectively by two branch pipes of powder exhaust pipe processed,
Main exhaust fan is connected with exhaust emission pipeline, and pocket type coal collector bottom is connected with ash bucket, hopper bottom outlet and coal dust
Injection tank is connected.
2. a kind of Pulverized Coal Injection System with Fuzzy according to claim 1, which is characterized in that the powder pipeline processed and powder tail processed
The first isolating valve, the second isolating valve, and third isolating valve, are respectively equipped on two branch pipes of feed channel.
3. a kind of Pulverized Coal Injection System with Fuzzy according to claim 2, which is characterized in that the ash bucket outer wall is from top to bottom
Several thermometers or material surface measurement instrument are set.
4. a kind of Pulverized Coal Injection System with Fuzzy according to claim 1, which is characterized in that pocket type coal collector bottom
It is connected between portion and ash bucket by flexible connecting device.
5. a kind of Pulverized Coal Injection System with Fuzzy according to claim 4, which is characterized in that the flexible connecting device is gold
Belong to bellows or rubber hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820903959.XU CN208532835U (en) | 2018-06-12 | 2018-06-12 | A kind of Pulverized Coal Injection System with Fuzzy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820903959.XU CN208532835U (en) | 2018-06-12 | 2018-06-12 | A kind of Pulverized Coal Injection System with Fuzzy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208532835U true CN208532835U (en) | 2019-02-22 |
Family
ID=65381375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820903959.XU Active CN208532835U (en) | 2018-06-12 | 2018-06-12 | A kind of Pulverized Coal Injection System with Fuzzy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208532835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441592A (en) * | 2018-06-12 | 2018-08-24 | 中冶南方工程技术有限公司 | A kind of Pulverized Coal Injection System with Fuzzy and technological process |
-
2018
- 2018-06-12 CN CN201820903959.XU patent/CN208532835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441592A (en) * | 2018-06-12 | 2018-08-24 | 中冶南方工程技术有限公司 | A kind of Pulverized Coal Injection System with Fuzzy and technological process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108441592A (en) | A kind of Pulverized Coal Injection System with Fuzzy and technological process | |
| CN101451173A (en) | Converter gas dry method pocket type purification and recovery process and system | |
| CN102974211A (en) | Circulating fluidized bed boiler in-furnace desulfurization device | |
| CN105624351B (en) | Breeze blowing pressure release back powder technique and system | |
| CN208532835U (en) | A kind of Pulverized Coal Injection System with Fuzzy | |
| CN103388047B (en) | Converter dry dust-removal system and technique | |
| CN207418781U (en) | System is sprayed using the blast-furnace coal powder system of system negative pressure prevention pulverized coal bin fire | |
| CN111575435B (en) | Primary dry dedusting system and method for ultra-clean gas recovery converter | |
| CN203158829U (en) | Anti-blocking device for pulverized coal feeding system | |
| CN104673392A (en) | Biomass gas parallel production system | |
| CN107365883A (en) | A kind of blast furnace roof presses coal-gas recovering internal circulation system and its operating method | |
| CN105836810A (en) | Acid regeneration station ferric oxide powder cooling treatment system | |
| CN206477005U (en) | A kind of blast furnace stops multiple wind furnace top gas purification tapping equipment | |
| CN205592944U (en) | Anti - coal feeding device who scurries of CFB boiler smoke protection gas | |
| CN208516540U (en) | Micro-power dust remover | |
| CN210346366U (en) | Steel mill electric furnace flue gas processing system | |
| CN203634975U (en) | Air flow distribution device of blast-furnace gas bag-type dust collector | |
| CN208250225U (en) | Coke oven coal-charging dedusting pre-spray system | |
| CN101713058B (en) | System for replacing steam internally blowing hot-dip galvanized steel pipe equipment | |
| CN205939178U (en) | Sediment raise dust control system is arranged in paper industry sediment storehouse | |
| CN207081013U (en) | One kind unloads grey storehouse soot blower | |
| CN205603616U (en) | Granular coal pulverizing system | |
| CN205205166U (en) | Gravitational precipitator ash handling equipment of fetching water | |
| CN206215034U (en) | A kind of dry method desulfuration system | |
| CN207546169U (en) | A kind of desulfurization tower bottom dust stratification broken arch transport system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |