CN206131699U - Use dust collecting equipment in coal drying equipment - Google Patents
Use dust collecting equipment in coal drying equipment Download PDFInfo
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- CN206131699U CN206131699U CN201621104756.1U CN201621104756U CN206131699U CN 206131699 U CN206131699 U CN 206131699U CN 201621104756 U CN201621104756 U CN 201621104756U CN 206131699 U CN206131699 U CN 206131699U
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- dust
- cleaner unit
- dust discharge
- valve
- level pulse
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Abstract
The utility model discloses an use dust collecting equipment in coal drying equipment, fuel feeding funnel connect gradually fuel lifting machine, fuel storage room, jetting stove, drying -machine, cyclone, one -level pulse bag type dust collector, system's dust exhaust dust remover, negative pressure formula draught fan, fan blast pipe, raw materials feeding funnel, raw material feed port, set up top at the drying -machine respectively, one -level pulse bag type dust collector below is provided with the toper deposit room, and toper deposit room below is provided with the dust exhaust valve, and the dust exhaust valve passes through the dust exhaust pipe to be connected with system dust exhaust dust remover, and the lower extreme of cyclone's lower extreme, the lower extreme of toper deposit room, system's dust exhaust dust remover, the lower extreme of negative pressure formula draught fan still communicate with finished product storeroom. The problem of the dust remover that exists among the prior art catch fire or even explode is solved.
Description
Technical field
This utility model belongs to colliery, coal yard (and other inflammable and explosive substances material) dedusting technology field, is related to a kind of application
Cleaner in coal (and other inflammable and explosive substances material) drying plant.
Background technology
Drying technology and equipment originate from Britain's cement industry in 1824, and A Sipu has invented the native shaft kiln that interval is manipulated；
German Di's thatch generation has invented the multilamellar shaft kiln of continuous manipulation within 1883；1885 Englishmen orchid Pehanorm (ERansome) have invented revolution
Kiln, puts into production it after English, U.S. acquirement patent, and considerable economic benefit is obtained quickly.And rotary kiln is widely applied to
Many industrial circles, and become more and more important in these industries, become the nucleus equipment of corresponding enterprise's production.It is same with this
When, reduction environmental conservation with the recovery to dried material and later is polluted, and the dedusting matched with it is occurred in that again, is collected
Device.Invention from the pocket type dust suction of Britain civil engineer in 1901 is anti-to the compression ring that nineteen fifty Hai Sai (H.J.Hersey) is invented
The fiber bag precipitator that sack cleaner and nineteen fifty-seven invented by Lei Nahaer (T.V.Renauer) is blown, is considered as together cloth
Revolution on bag dedusting technology, is made that breakthrough first in terms of bag filters efficiency, has finally developed into a kind of high-effect
Sack cleaner.
There is the dust of a variety of materials, under certain conditions, with inflammable and explosive characteristic, such as aluminium powder, iron powder, face
Powder, some fibre dust.And the coal for growing up in recent years is dried in processing, the application of drying plant and technology is the most
Prominent, wherein affecting production and the inflammable and explosive property that the problem of safety is exactly coal dust, this technology is just this inflammable and explosive with coal
As a example by combustible, launch explanation and study.
Coal dust (and other flammable materials dust), due to the increase of its heated surface area, the mitigation of quality, easily absorbs it
The heat of environment heat-carrying object and heat up, reach its burning-point and catch fire.Why coal can catch fire at a lower temperature, be by
Contain flammable inorganic phosphorus composition and organic sulfur, troilite sulfur, these compositions in the different and different of its composition, most coal
There is physical and chemical reaction in the heat exchanging process of coal, decomposable asymmetric choice net goes out phosphorus, sulfur combustible component, and according to the study data shows that phosphorus is at 40 degree
At a temperature of just can with spontaneous combustion, sulfur (sulfur) spontaneous combustion at 250 degree, when sulfur dust in atmosphere its lower limit of concentration more than 2.3-
35g/m3, meeting fire can explode；Coal dust produces spontaneous combustion under normal temperature state by absorbing heat, and possesses in oxygen, heat
In the case of, coal dust is suspended in air and reaches finite concentration, just there is blast characteristics, according to test, the blast of China's coal dust
Least concentration is 45～55 grams/cubic metre, and upper concentration is generally 1500～2000 grams/cubic metre.
Therefore drying plant in coal slime, is especially produced in coal dries application burning, explosion accident are a lot, generations
Valency is also very big.As one visual plant of environmental improvement --- the application of cleaner unit becomes forbidding, great for one
Phobic equipment, so as to realize more effective environmental improvement purpose, and these factors govern coal dewatering and (dry
It is dry) normal, safe and environment-friendly, persistence the development that is dried, this crude management has also been not suitable with the requirement of modern production,
Just because of this, because environmental improvement is required and is supervised, in batch (-type) or illegal state, its is heavy for the coal drying and processing of various places
Reason is wanted to be so as to also uncontrollable dust emission, more cannot cannot to realize environmentally friendly production using fiber bag precipitator.
Utility model content
The purpose of this utility model is to provide a kind of cleaner applied in coal drying plant, solves prior art
Present in cleaner unit catch fire the problem of even blast.
The technical scheme that this utility model is adopted is, a kind of cleaner applied in coal drying plant, including combustion
Material elevating hopper, fuel elevating hopper be sequentially connected fuel elevator, fuel storage room, blowing furnace, dehydrator, cyclone dust extractor, one
Level pulse bag formula cleaner unit, system dust discharge cleaner unit, negative-pressure type air-introduced machine, blower fan exhaustor, raw material elevating hopper, feedstock
Mouth is separately positioned on the top of dehydrator, and dehydrator end lower section is set gradually between finished product discharging opening, finished stock storage；One-level pulse
Fiber bag precipitator lower section is provided with taper expansion chamber, and taper expansion chamber lower section is provided with dust discharge valve, and dust discharge valve passes through dust flue
Be connected with system dust discharge cleaner unit, the lower end of cyclone dust extractor, the lower end of taper expansion chamber, the lower end of system dust discharge cleaner unit,
The lower end of negative-pressure type air-introduced machine also connects between finished stock storage；Dehydrator end top is by the second air vent mode switching valve and rotation
Wind cleaner unit connects, and the conversion of the first air vent mode is provided between one-level pulse bag formula cleaner unit and system dust discharge cleaner unit
Valve.
Further, the first air vent mode switching valve, the second air vent mode switching valve are butterfly valve.
Further, the dust discharge valve is square gate valve.
Further, the capacity of the system dust discharge cleaner unit is the 20% of one-level pulse bag formula cleaner unit.
The beneficial effects of the utility model are the uses by fire prevention measure, reach safety, the feature of environmental protection of normal production,
Low-loss, its safety is to avoid coal dust spontaneous combustion in shutdown, start and maintenance process by control to cause fire to suffer from or even quick-fried
Fried danger；Its feature of environmental protection is can effectively to support the use existing sack cleaner to complete to reduce the discharge of dust and big
Gas pollutes, and can effectively collect can be using coal dust, as the fuel that coal is dried, while also can be directly that steel mill, power plant etc. are looked forward to
Industry saves pulverizing manufacturing procedure and cost as the direct fuel of blowing furnace, formed coal be dried factory novel product type and its
Its heating stove uses the thermal energy raw material sources of enterprise；Now fire suffers from the mechanical loss and maintenance cost for causing to low-loss gonosome
And the effective production time.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1. fuel elevator, 2. fuel storage room, 3. blowing furnace, 4. material inlet, 5. dehydrator, 6. finished product
Discharging opening, 7. cyclone dust extractor, 8. one-level pulse bag formula cleaner unit, 9. dust flue, 10. negative-pressure type air-introduced machine, 11. systems row
Dirt cleaner unit, 12. blower fan exhaustors, 13. fuel elevating hoppers, 14. raw material elevating hoppers, between 15. finished stock storages, 16. first air channels
Mode switching valve, 17. dust discharge valves, 18. second air vent mode switching valves, 19. taper expansion chambers.
Specific embodiment
This utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of cleaner applied in coal drying plant, structure is as shown in figure 1, including fuel elevating hopper 13, fuel
Elevating hopper 13 is sequentially connected fuel elevator 1, fuel storage room 2, blowing furnace 3, dehydrator 5, cyclone dust extractor 7, one-level pulse
Fiber bag precipitator 8, system dust discharge cleaner unit 11, negative-pressure type air-introduced machine 10, blower fan exhaustor 12, on material inlet 4, raw material
Hopper 14 is separately positioned on the top of dehydrator 5, and the end of dehydrator 5 lower section is set gradually between finished product discharging opening 6, finished stock storage
15；The lower section of one-level pulse bag formula cleaner unit 8 is provided with taper expansion chamber 19, and the lower section of taper expansion chamber 19 is provided with dust discharge valve
17, dust discharge valve 17 is connected by dust flue 9 with system dust discharge cleaner unit 11, the lower end of cyclone dust extractor 7, taper expansion chamber 19
Lower end, the lower end of system dust discharge cleaner unit 11, the lower end of negative-pressure type air-introduced machine 10 15 connect also between finished stock storage；Dehydrator 5
End top is connected by the second air vent mode switching valve 18 with cyclone dust extractor 7, one-level pulse bag formula cleaner unit 8 and system
The first air vent mode switching valve 16 is provided between dust discharge cleaner unit 11.
Fuel elevator 1, fuel storage room 2, the transport portion that fuel elevating hopper 13 is bunker coal；Blowing furnace 3 is heat supply
Part；, from feed coal conveyer to be processed, dehydrator 5 is bunker coal and heat for material inlet 4, the raw material of raw material elevating hopper 14
Gas mixing carries out heat exchange section, and finished product discharging opening 6 is moisture-free coal output section, and cyclone dust extractor 7 is primary dedusting collection portion
Point, the first air vent mode switching valve 16, dust discharge valve 17, the second air vent mode switching valve 18 are production mode switching unit；Blower fan
Exhaustor 12 is steam discharge drum.
First air vent mode switching valve 16, the second air vent mode switching valve 18 are butterfly valve.
Dust discharge valve 17 be gate valve, can be it is circular, square, it is preferably square.
The capacity of system dust discharge cleaner unit 11 is the 20% of one-level pulse bag formula cleaner unit 8.
The dry run of coal is：Blowing furnace is sent in bunker coal Jing fuel elevating hopper 13, fuel elevator 1, fuel storage room 2
3 burnings produce steam, send into dehydrator 5, and the feed coal come with raw material elevating hopper 14, material inlet 4 mixes and completes hot friendship
Change, Jing cyclone dust extractors 7 to one-level pulse bag formula cleaner unit 8 completes dry run.But because it is flammable materials, in tool
The technique and configuration aspect of body production has difference, and especially after supporting sack cleaner, it is complicated that situation just becomes, past
Catch fire toward in cleaner unit, be not obvious in normal productive process, be because the coal dust in system is discharged by new dust cementation,
Flare is not likely to produce, when production process is when stopping, the residual coal dust in dust pelletizing system produces flare through absorbing heat, is
This, increased the first air vent mode switching valve 16, dust discharge valve 17, the second air vent mode switching valve 18, dust flue 9 and system dust discharge
The configuration of cleaner unit 11, increased in production technology one shut down when system dust discharge a little technique, be to exclude
The residual coal dust for being excluded under normal circumstances is difficult in main dust pelletizing system, by the first air vent mode switching valve 16, dust discharge valve 17,
Two air vent mode switching valves 18, dust flue 9 and system dust discharge cleaner unit 11 assist negative-pressure type air-introduced machine 10, blower fan exhaustor 12
Complete the cleaning work of the residual coal dust of main dust pelletizing system, and reach exclusion fire to suffer from basic factor, it is to avoid cleaner unit catches fire very
To the problem of blast of igniting.
Dust discharge operation is, when shutting down more than more than a hour every time, a dust discharge just must to be carried out to system, is arranged
Fall all residual coal dusts in main dust pelletizing system, while carrying out once cooling process to cleaner unit, fundamentally eliminate fiery trouble
Factor, it is to avoid fire suffers from accident.
Under production status：First air vent mode switching valve 16, the second air vent mode switching valve 18 are in open, dust discharge valve
17 are in closing type；Under production status, the negative-pressure air-flow operating path of negative-pressure type air-introduced machine 10 is：Blowing furnace 3, dehydrator 5,
Second air vent mode switching valve 18, cyclone dust extractor 7, one-level pulse bag formula cleaner unit 8, negative-pressure type air-introduced machine 10, blower fan row
Trachea 12.
Under dust discharge operating mode：First air vent mode switching valve 16, the second air vent mode switching valve 18 are in and close, by the second wind
Road mode switching valve 18 blocks dehydrator air-flow, and the conversion cleaner unit gas of the first air vent mode switching valve 16 flows into system dust discharge dedusting
Device 11, in opening, cold wind mouth is in and opens dust discharge valve 17, and the air-introduced machine negative-pressure air-flow operating path under dust discharge operating mode is：Gas
One-level pulse bag formula cleaner unit 8 is entered in source by cold wind mouth, by coal dust boiling in one-level pulse bag formula cleaner unit 8 and through dust discharge
Valve 17, be passed through dust flue 9 flow into system dust discharge cleaner unit 11 carry out the collection of coal dust, steam Jing negative-pressure types air-introduced machine 10, by wind
Machine exhaustor 12 discharges air, completes the cleaning work of coal dust.
Claims (4)
1. a kind of cleaner applied in coal drying plant, it is characterised in that including fuel elevating hopper (13), fuel feeding
Bucket (13) be sequentially connected fuel elevator (1), fuel storage room (2), blowing furnace (3), dehydrator (5), cyclone dust extractor (7),
One-level pulse bag formula cleaner unit (8), system dust discharge cleaner unit (11), negative-pressure type air-introduced machine (10), blower fan exhaustor (12), it is former
Material elevating hopper (14), material inlet (4) are separately positioned on the top of dehydrator (5), and dehydrator (5) end lower section sets gradually
Between finished product discharging opening (6), finished stock storage (15)；One-level pulse bag formula cleaner unit (8) lower section is provided with taper expansion chamber (19),
Taper expansion chamber (19) lower section is provided with dust discharge valve (17), and dust discharge valve (17) is by dust flue (9) and system dust discharge cleaner unit
(11) connect, the lower end of cyclone dust extractor (7), the lower end of taper expansion chamber (19), system dust discharge cleaner unit (11) lower end also
(15) connect between finished stock storage；Dehydrator (5) end top is by the second air vent mode switching valve (18) and cyclone dust extractor
(7) connect, the conversion of the first air vent mode is provided between one-level pulse bag formula cleaner unit (8) and system dust discharge cleaner unit (11)
Valve (16).
2. a kind of cleaner applied in coal drying plant according to claim 1, it is characterised in that described first
Air vent mode switching valve (16), the second air vent mode switching valve (18) are butterfly valve.
3. a kind of cleaner applied in coal drying plant according to claim 1, it is characterised in that the dust discharge
Valve (17) is square gate valve.
4. a kind of cleaner applied in coal drying plant according to claim 1, it is characterised in that the system
The capacity of dust discharge cleaner unit (11) is the 20% of one-level pulse bag formula cleaner unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104756.1U CN206131699U (en) | 2016-09-29 | 2016-09-29 | Use dust collecting equipment in coal drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104756.1U CN206131699U (en) | 2016-09-29 | 2016-09-29 | Use dust collecting equipment in coal drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206131699U true CN206131699U (en) | 2017-04-26 |
Family
ID=58571433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621104756.1U Expired - Fee Related CN206131699U (en) | 2016-09-29 | 2016-09-29 | Use dust collecting equipment in coal drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206131699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534419A (en) * | 2022-03-02 | 2022-05-27 | 扎赉诺尔煤业有限责任公司 | Ground conveying roadway dust removal system and dust removal method |
-
2016
- 2016-09-29 CN CN201621104756.1U patent/CN206131699U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534419A (en) * | 2022-03-02 | 2022-05-27 | 扎赉诺尔煤业有限责任公司 | Ground conveying roadway dust removal system and dust removal method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20180929 |