CN206131034U - Pulverized coal preparation device - Google Patents
Pulverized coal preparation device Download PDFInfo
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- CN206131034U CN206131034U CN201621095021.7U CN201621095021U CN206131034U CN 206131034 U CN206131034 U CN 206131034U CN 201621095021 U CN201621095021 U CN 201621095021U CN 206131034 U CN206131034 U CN 206131034U
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- coal
- grinding apparatus
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- feeding mechanism
- flue gas
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Abstract
The utility model relates to a pulverized coal preparation device, including heat source device, raw coal feeding mechanism, coal grinding apparatus, coal powder collecting device, draught fan and buggy storehouse, the discharge end of raw material supply device links up with coal grinding apparatus's feed end, and coal grinding apparatus's discharge end links up with the feed end of coal powder collecting device, and the discharge end of coal powder collecting device links up with the feed end in buggy storehouse, heat source device is the flue gas feeding mechanism, and the end of giving vent to anger of flue gas feeding mechanism is connected to coal grinding apparatus's grinding cavity. Adopt the technical scheme of the utility model afterwards, hot -blast (the hot flue gas) that utilize the flue gas feeding mechanism in the coal -grinding is with the moisture dry of coal the inside, and the limit edging is dried promptly, and process flow is short, once can produce qualified buggy, and hot -blast is the drier, also be simultaneously to carry the medium of carrying the buggy, the utility model has the advantages of process flow is short, efficient, energy -concerving and environment -protective.
Description
Technical field
The utility model is related to a kind of fuel pulverizing plant.
Background technology
Pulverized coal preparation refers to that block raw coal is ground to form the coal dust of certain fineness, with provide various coal dust to boiler, plus
Hot stove, cement kiln, steel-making blast furnace.Fuel pulverizing plant typically by thermal source, raw coal conveyer, dryer, coal pulverizer, deduster,
Blower fan, pulverized coal channel, airduct, chimney etc. are constituted.
Such as Authorization Notice No. CN 205481082U, the Chinese utility model patent of entitled " a kind of coal dust preparation system "
In, disclose a kind of coal dust preparation system, including heat power supply device, drying unit, milling device, powder collector and air blast, cloth bag
Deduster and air-introduced machine, heat power supply device provides heat energy, smoke outlet and the sack cleaner of drying unit for drying unit
Gas approach end is connected；The smoke outlet of sack cleaner is connected with air-introduced machine；The dry feedstock of drying unit sends into milling
Device, the wind powder mixture port of export of milling device is connected with the wind powder mixture entrance point of powder collector, and the wind powder of powder collector is mixed
The compound port of export is connected with the entrance point of air blast, the port of export of air blast and the wind powder mixture entrance point phase of milling device
Even, the grinding circulatory system of closing is formed between milling device, powder collector, air blast, also including balance wind pipe, air blast goes out
Mouth end is connected further through balance wind pipe with the gas approach end of sack cleaner.
Coal dust preparation system in above-mentioned patent, drying and the grinding point two procedures of coal dust are carried out, and technological process is more,
More energy consumption is needed, and the tail gas discharged from air-introduced machine contains more heat transfer, it is difficult to make full use of, be unfavorable for energy-conserving and environment-protective.
In consideration of it, the present inventor carries out in-depth study to the problems referred to above, there is this case to produce then.
Utility model content
The purpose of this utility model is that a kind of technological process of offer is few, can save the fuel pulverizing plant of energy consumption.
In order to achieve the above object, the utility model adopts such technical scheme：
A kind of fuel pulverizing plant, including heat power supply device, raw coal feeding mechanism, coal-grinding apparatus, coal powder collection device, air inducing
Machine and Pulverized Coal Bin, the discharge end of feedstock supply unit is connected with the feed end of coal-grinding apparatus, the discharge end and coal of coal-grinding apparatus
The feed end linking of powder collecting device, the discharge end of coal powder collection device is connected with the feed end of Pulverized Coal Bin, the heat power supply device
For flue gas feeding mechanism, the outlet side of flue gas feeding mechanism is connected to the milling chamber of coal-grinding apparatus.
As a kind of preferred embodiment of the present utility model, also including off-gas recovery pipeline, one end of off-gas recovery pipeline with
The air outlet connection of the air-introduced machine, the other end is connected with the flue gas feeding mechanism.
As a kind of preferred embodiment of the present utility model, the flue gas feeding mechanism include coal dust stocking system, hot-blast stove,
Distribution plenum and flue tube, the discharge end of coal dust stocking system is connected with the feed end of hot-blast stove, the outlet air end of hot-blast stove with match somebody with somebody
The air intake linking of air compartment, one end of flue tube is connected with the outlet air end of distribution plenum, and the other end is connected with the coal-grinding apparatus, institute
State off-gas recovery pipeline and be connected to smoke pipeline.
Used as a kind of preferred embodiment of the present utility model, the air outlet of the air-introduced machine is connected with desulfurizing tower.
Used as a kind of preferred embodiment of the present utility model, the coal powder collection device includes that cyclone collector and pocket type are collected
Device, the feed end of cyclone collector is connected with the discharge end of the coal-grinding apparatus, the feed end and cyclone collection of bag collector
The gas outlet linking of device, the gas outlet of bag collector is connected with the air intake of the air-introduced machine, the discharging opening of cyclone collector
The Pulverized Coal Bin is connected to the discharging opening of bag collector.
As a kind of preferred embodiment of the present utility model, the raw coal feeding mechanism include coal storage factory building, run coal bin and
The belt conveyor being arranged between coal storage factory building and run coal bin, the feed end to coal end and belt conveyor of coal storage factory building is held in the mouth
Connect, the discharge end of belt conveyor is connected with the feed end of run coal bin, the charging of the discharge end of run coal bin and the coal-grinding apparatus
End linking.
Used as a kind of preferred embodiment of the present utility model, the coal-grinding apparatus is vertical spindle coal pulveriser, and vertical spindle coal pulveriser enters
The discharge end of material end and vertical spindle coal pulveriser is arranged at the upper end of vertical spindle coal pulveriser.
After using the technical solution of the utility model, using the hot blast (heat smoke) of flue gas feeding mechanism while coal-grinding
Moisture inside coal is dried, i.e. side edging drying, technological process is short, can once produce qualified coal dust, and hot blast is both dry
Drying prescription, at the same be also carry pulverized coal conveying medium, the utility model have short technological process, efficiency high, energy-conserving and environment-protective it is excellent
Point.
Used as further improvement of the utility model, by arranging off-gas recovery pipeline, the tail gas that air-introduced machine is exported is (low
Oxygen, containing heat, in 50-80 degree) flue gas feeding mechanism is introduced, recycling for flue gas is realized, with the excellent of energy-conserving and environment-protective
Point.
Description of the drawings
Fig. 1 is top view of the present utility model；
Fig. 2 is front view of the present utility model (wherein flue gas feeding mechanism is not entirely shown)；
Fig. 3 is front view of the present utility model (wherein raw coal feeding mechanism is not shown)；
In figure：
10- heat power supply device 11- coal dust stocking systems
12- hot-blast stove 13- air blasts
14- distribution plenum 15- flue tubes
20- coal-grinding apparatus 30- coal powder collection devices
31- cyclone collector 32- bag collectors
40- air-introduced machine 41- chimneys
42-desulfurizing tower 50- Pulverized Coal Bins
51- deduster 60- off-gas recovery pipelines
61- low nitrogen burning return duct 70- air-transport systems
80- raw coal feeding mechanism 81- coal storage factory buildings
82- receives coal bunker 83- electromagnetic quantitative batchers
84- run coal bin 85- run coal bins
86- closed quantitative feeder 90- coal dust waggons
Specific embodiment
In order to the technical solution of the utility model is explained further, it is described in detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to Fig. 3, a kind of fuel pulverizing plant, including heat power supply device 10, raw coal feeding mechanism 80, coal-grinding apparatus
20th, coal powder collection device 30, air-introduced machine 40 and Pulverized Coal Bin 50, the discharge end of feedstock supply unit 80 and entering for coal-grinding apparatus 20
Material end linking, the discharge end of coal-grinding apparatus 20 is connected with the feed end of coal powder collection device 30, the discharging of coal powder collection device 30
End is connected with the feed end of Pulverized Coal Bin 50, and the outlet side of coal powder collection device 30 connects with the air inlet of air-introduced machine 40, the heat
Source device 10 is flue gas feeding mechanism, and the outlet side of flue gas feeding mechanism is connected to the milling chamber of coal-grinding apparatus 20.Flue gas is supplied
Answer device to provide hot blast (heat smoke), dried the moisture inside coal using hot blast while coal-grinding, i.e. side edging drying, work
Skill flow process is short, can once produce qualified coal dust.Hot blast is both drier, while being also the medium for carrying pulverized coal conveying.
As a kind of preferred embodiment of the present utility model, also including off-gas recovery pipeline 60, the one of off-gas recovery pipeline 60
End connects with the air outlet of the air-introduced machine 40, and the other end is connected with the flue gas feeding mechanism.Smoke backflow pipeline 60 is played
Heat recovery, the effect for adjusting flue-gas temperature, controlling oxygen content.Smoke backflow pipeline 60 by volume damper control, according to fortune
Market condition adjusts aperture, control hot blast temperature and oxygen content.
Used as a kind of preferred embodiment of the present utility model, the flue gas feeding mechanism includes coal dust stocking system 11, hot blast
Stove 12, distribution plenum 14 and flue tube 15, the discharge end of coal dust stocking system 11 is connected with the feed end of hot-blast stove 12, hot-blast stove
12 outlet air end is connected with the air intake of distribution plenum 14, and one end of flue tube 15 is connected with the outlet air end of distribution plenum 14, the other end
Connect with the coal-grinding apparatus 20, the off-gas recovery pipeline 60 is connected to smoke pipeline 15, wherein hot-blast stove 12 adopts Vertical Heat
Wind furnace.Also include low nitrogen burning return duct 61, one end and the off-gas recovery pipeline of low nitrogen burning return duct 61 in the utility model
60 connections, the other end is connected with hot-blast stove 12, and low nitrogen backflow flue gas are conveyed to hot-blast stove 12 by low nitrogen burning return duct 61.
Mars trap can also be set between distribution plenum 14 and hot-blast stove 12, and heat power supply device 10 is mainly the coal dust in coal-grinding apparatus 20
Drying provides hot blast, for drying.The inlet temperature of coal-grinding apparatus is generally 220-280 DEG C, and according to coal-grinding apparatus 20 cigarette is exported
Temperature adjusts the entrance flue gas temperature of coal-grinding apparatus 20.Hot blast temperature is entered by the supporting air blast 13 of hot-blast stove 12, hot-blast stove mixer selector valve
Row is adjusted, and two grades of mixer selector valves are system protection device.Thermal Efficiency of Hot Blast Stoves is not less than 90%.Hot-blast stove adopts low nitrogen burning skill
Art, the generation of flue gas recirculating technique control NOx and discharge, hot-blast stove adopts Automatic Control, and its technical characterstic is that intensification is fast
Fast, start and stop are convenient, instant regulation and control, energy-conserving and environment-protective, safety and stability.Can be to the height of hot blast temperature according to the condition of production
When regulate and control, and can make hot blast temperature stable in 5 DEG C of fluctuation range；According to condition of production hot-blast stove can start and stop at any time, meet
When equipment fault, hot-blast stove can at once stop burning, and system temperature is rapidly reduced to safe temperature, it is ensured that system safety；
Because hot-blast stove start and stop are timely, burning is abundant, fuel is adjustable, temperature-controllable, the efficiency of raw coal drying can be increased substantially,
With preferable economic benefit.
Used as a kind of preferred embodiment of the present utility model, the air outlet of the air-introduced machine 40 is connected with desulfurizing tower 42.It is de-
Sulphur tower 42 adopts high-efficient multi-pipe turbine desulfurizing tower, wet desulphurization to control the discharge of SO2, is administered by distribution, collaboration so that cigarette
The discharge of gas reaches the discharge standard of correlation.From the flue gas part out of air-introduced machine 40 by smoke backflow pipeline 60, just
Flue tube 15 is back under Negative Pressure Difference effect, being partly in desulfurizing tower 42 carries out desulfurization, the flue gas after disengaging is processed passes through
Chimney 41 is discharged.
Used as a kind of preferred embodiment of the present utility model, the coal powder collection device 30 includes cyclone collector 31 and pocket type
Collector 32, the feed end of cyclone collector 31 is connected with the discharge end of the coal-grinding apparatus 20, the charging of bag collector 32
End is connected with the gas outlet of cyclone collector 31, and the gas outlet of bag collector 32 is connected with the air intake of the air-introduced machine 40,
The discharging opening of cyclone collector 31 and the discharging opening of bag collector 32 are connected to the Pulverized Coal Bin 50.The utility model is by one
Level cyclone collector 31 and two grades of bag collectors 32 are collected to coal dust, and bag collector has explosion-proof, waterproof, antistatic
The characteristics of, up to 99.999%, collection efficiency is high, and totally-enclosed is pollution-free for coal powder collection efficiency.The coal dust that bag collector 32 is collected
By conveying equipment (helical conveyer system or air-transport system 70) closed conveying to finished product Pulverized Coal Bin 50.Coal dust passes through coal
Powder waggon 90 is distributed to each user.The equipment such as silo roof configuration deduster, explosion proof door, level-sensing device, the CO detections of Pulverized Coal Bin 50,
Storehouse side configures temperature point；Orlop conical section configuration fluidized plate (fluidizing gas adopts nitrogen), orlop configuration dry ash bulk machine
For coal dust to be loaded into tank car.
Used as a kind of preferred embodiment of the present utility model, the raw coal feeding mechanism 80 includes coal storage factory building 81, run coal bin
85 and the belt conveyor 84 that is arranged between coal storage factory building 81 and run coal bin 85, coal storage factory building 81 it is defeated to coal end and belt
The feed end for sending machine 84 is connected, and the discharge end of belt conveyor 84 is connected with the feed end of run coal bin 85, the discharging of run coal bin 85
End is connected with the feed end of the coal-grinding apparatus 20.It is provided with coal storage factory building 81 by coal bunker 82 and electromagnetic quantitative batcher 83, uses
So that raw coal is delivered to into belt conveyor 84, and run coal bin 85 is delivered to by belt conveyor 84, run coal bin 85 is provided with close
Quantitative feeder 86 is closed, the feed end of closed quantitative feeder 86 is connected with the discharge end of run coal bin 85, closed quantitative feeder
86 discharge end is connected with the feed end of coal-grinding apparatus 20, raw coal is quantitatively transferred to into coal-grinding apparatus 20.
Used as a kind of preferred embodiment of the present utility model, the coal-grinding apparatus 20 is vertical spindle coal pulveriser, vertical spindle coal pulveriser
The discharge end of feed end and vertical spindle coal pulveriser is arranged at the upper end of vertical spindle coal pulveriser.In embodiment, specifically using vertical rolls
Disk coal pulverizer, the coal pulverizer can directly from buying on the market, the efficient height of vertical rolls mill coal equipment, product with stable quality,
The advantage of little power consumption.
In the utility model, the combustion air of hot-blast stove 12 has the closed quantitative of air blast 13 to provide, and system is negative pressure fortune
OK, negative pressure is produced by centrifugal high pressure air-introduced machine 40.Whole system totally-enclosed, negative pressure operation：The whole process of powder processed be it is closed,
Separate and collect after by negative pressure is extracted out coal dust, production process and surrounding enviroment are not polluted；Compared with other pulverized coal preparation systems,
Such as Raymond mill system, milling system, the characteristics of the utility model has few heat consumption, little power consumption, are received using efficient pocket type
Storage collects coal dust, controls the discharge of flue dust, has the advantages that environmental protection.
Using device of the present utility model, feed coal (≤50mm) is quantitatively given to high angle belt conveyer conveying by coal storage factory building
Machine, is delivered in the milling chamber of coal-grinding apparatus processed 20.It is simultaneously from the air inlet of the hot blast of hot-blast stove 12 from coal-grinding apparatus 20
Into in mill, coal pulverizer is set to realize side edging drying.In pulverizing process, with the rotation of Vertical Mill rotating disk, feed coal is in centrifugal force
In the presence of, being taken up by vane high velocity air to mill edge, bulky grain falls directly on mill grinding again, the original in air-flow
Material coal enters Upper separator, and in the presence of rotor, meal falls mill grinding again from cone bucket, and qualified fine powder is with gas
Stream goes out together mill, is collected by bag filter, as qualified products.Qualified products are delivered to again by air-transport system 70
Pulverized coal storehouse 50.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out similar thinking to it
Appropriate change is modified, and all be should be regarded as without departing from patent category of the present utility model.
Claims (7)
1. a kind of fuel pulverizing plant, including heat power supply device, raw coal feeding mechanism, coal-grinding apparatus, coal powder collection device, air-introduced machine
And Pulverized Coal Bin, the discharge end of feedstock supply unit is connected with the feed end of coal-grinding apparatus, the discharge end and coal dust of coal-grinding apparatus
The feed end linking of collection device, the discharge end of coal powder collection device is connected with the feed end of Pulverized Coal Bin, it is characterised in that：It is described
Heat power supply device is flue gas feeding mechanism, and the outlet side of flue gas feeding mechanism is connected to the milling chamber of coal-grinding apparatus.
2. a kind of fuel pulverizing plant as claimed in claim 1, it is characterised in that：Also include off-gas recovery pipeline, flue gas is returned
The one end in closed tube road connects with the air outlet of the air-introduced machine, and the other end is connected with the flue gas feeding mechanism.
3. a kind of fuel pulverizing plant as claimed in claim 2, it is characterised in that：The flue gas feeding mechanism is stored up including coal dust
Deposit system, hot-blast stove, distribution plenum and flue tube, the discharge end of coal dust stocking system is connected with the feed end of hot-blast stove, hot blast
The outlet air end of stove is connected with the air intake of distribution plenum, and one end of flue tube is connected with the outlet air end of distribution plenum, the other end with it is described
Coal-grinding apparatus is connected, and the off-gas recovery pipeline is connected to smoke pipeline.
4. a kind of fuel pulverizing plant as claimed in claim 3, it is characterised in that：The air outlet of the air-introduced machine is connected with
Desulfurizing tower.
5. a kind of fuel pulverizing plant as claimed in claim 1, it is characterised in that：The coal powder collection device is received including whirlwind
Storage and bag collector, the feed end of cyclone collector is connected with the discharge end of the coal-grinding apparatus, and bag collector enters
Material end is connected with the gas outlet of cyclone collector, and the gas outlet of bag collector is connected with the air intake of the air-introduced machine, whirlwind
The discharging opening of collector and the discharging opening of bag collector are connected to the Pulverized Coal Bin.
6. a kind of fuel pulverizing plant as claimed in claim 5, it is characterised in that：The raw coal feeding mechanism includes coal storage plant
Room, run coal bin and the belt conveyor being arranged between coal storage factory building and run coal bin, coal storage factory building it is defeated to coal end and belt
The feed end for sending machine is connected, and the discharge end of belt conveyor is connected with the feed end of run coal bin, the discharge end of run coal bin with it is described
The feed end linking of coal-grinding apparatus.
7. a kind of fuel pulverizing plant as claimed in claim 6, it is characterised in that：The coal-grinding apparatus is vertical spindle coal pulveriser,
The feed end of vertical spindle coal pulveriser and the discharge end of vertical spindle coal pulveriser are arranged at the upper end of vertical spindle coal pulveriser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095021.7U CN206131034U (en) | 2016-09-30 | 2016-09-30 | Pulverized coal preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095021.7U CN206131034U (en) | 2016-09-30 | 2016-09-30 | Pulverized coal preparation device |
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| Publication Number | Publication Date |
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| CN206131034U true CN206131034U (en) | 2017-04-26 |
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ID=58572684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621095021.7U Active CN206131034U (en) | 2016-09-30 | 2016-09-30 | Pulverized coal preparation device |
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| CN (1) | CN206131034U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627345A (en) * | 2016-01-27 | 2016-06-01 | 广东海洋大学 | Pulverized coal preparation system and pulverized coal preparation method |
| CN108787045A (en) * | 2018-08-01 | 2018-11-13 | 河南黎明重工科技股份有限公司 | A kind of Vertical Mill feed chute apparatus of fluidisation function |
| CN110618019A (en) * | 2019-08-31 | 2019-12-27 | 南京理工大学 | Pulverized coal dynamic pyrolysis device |
| CN111854453A (en) * | 2020-07-29 | 2020-10-30 | 临澧冀东水泥有限公司 | Method and system for reducing discharge amount of sulfide in waste gas of kiln tail air-taking coal mill |
| CN112266807A (en) * | 2019-04-12 | 2021-01-26 | 隋有彬 | Coal desulfurization device |
| CN113713948A (en) * | 2021-08-30 | 2021-11-30 | 北京干雾科技有限公司 | Stone coal recycling device and method |
| CN115448309A (en) * | 2022-07-19 | 2022-12-09 | 宁夏恒基环保科技有限公司 | Pulverized coal recycling system and method |
-
2016
- 2016-09-30 CN CN201621095021.7U patent/CN206131034U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627345A (en) * | 2016-01-27 | 2016-06-01 | 广东海洋大学 | Pulverized coal preparation system and pulverized coal preparation method |
| CN108787045A (en) * | 2018-08-01 | 2018-11-13 | 河南黎明重工科技股份有限公司 | A kind of Vertical Mill feed chute apparatus of fluidisation function |
| CN108787045B (en) * | 2018-08-01 | 2023-12-12 | 河南黎明重工科技股份有限公司 | Vertical mill feeding chute device with fluidization function |
| CN112266807A (en) * | 2019-04-12 | 2021-01-26 | 隋有彬 | Coal desulfurization device |
| CN112266807B (en) * | 2019-04-12 | 2021-11-16 | 新沂市久元矿业有限公司 | Coal desulfurization device |
| CN110618019A (en) * | 2019-08-31 | 2019-12-27 | 南京理工大学 | Pulverized coal dynamic pyrolysis device |
| CN111854453A (en) * | 2020-07-29 | 2020-10-30 | 临澧冀东水泥有限公司 | Method and system for reducing discharge amount of sulfide in waste gas of kiln tail air-taking coal mill |
| CN113713948A (en) * | 2021-08-30 | 2021-11-30 | 北京干雾科技有限公司 | Stone coal recycling device and method |
| CN115448309A (en) * | 2022-07-19 | 2022-12-09 | 宁夏恒基环保科技有限公司 | Pulverized coal recycling system and method |
| CN115448309B (en) * | 2022-07-19 | 2023-07-28 | 宁夏恒基环保科技有限公司 | Pulverized coal recycling system and recycling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pulverized coal milling device and method Effective date of registration: 20181121 Granted publication date: 20170426 Pledgee: Industrial Bank Limited by Share Ltd Quanzhou branch Pledgor: Fujian Eternal Energy Management Co., Ltd. Registration number: 2018350000138 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220528 Granted publication date: 20170426 Pledgee: Industrial Bank Limited by Share Ltd. Quanzhou branch Pledgor: FUJIAN ETERNAL ENERGY MANAGEMENT Co.,Ltd. Registration number: 2018350000138 |