CN207703012U - Mineral hot furnace coal-gas recovering utilizes equipment - Google Patents
Mineral hot furnace coal-gas recovering utilizes equipment Download PDFInfo
- Publication number
- CN207703012U CN207703012U CN201721602268.8U CN201721602268U CN207703012U CN 207703012 U CN207703012 U CN 207703012U CN 201721602268 U CN201721602268 U CN 201721602268U CN 207703012 U CN207703012 U CN 207703012U
- Authority
- CN
- China
- Prior art keywords
- gas
- hot furnace
- mineral hot
- furnace coal
- level
- 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
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model is related to a kind of mineral hot furnace coal-gas recoverings to utilize equipment.Mineral hot furnace coal-gas recovering provided by the utility model is using equipment：Raw coke oven gas air inlet pipe is sequentially connected level-one gravitational settler, two level gravitational settler, three-level gravitational settler, thick gas wind turbine, bag filter, purified gas exhaust pipe.Mineral hot furnace coal-gas recovering provided by the utility model is simple to operation using method, can Recovery Purifying safely and effectively be carried out to mineral hot furnace coal gas by reasonably controlling technological parameter, simultaneously so that service life of equipment is long, it being capable of continuous work, the situations such as greasy dirt or dust blocking will not occur, mineral hot furnace coal-gas recovering using equipment can continuous operation, stabilization of equipment performance is good.
Description
Technical field
The utility model is related to tail gas recycles to utilize field, and in particular to a kind of mineral hot furnace coal-gas recovering utilizes equipment.
Background technology
Mineral hot furnace is also known as electric-arc furnace or resistance electric furnace, is mainly used for reducing and smelting ore, carbonaceous reducing agent and solvent etc.
Raw material.Main production ferrosilicon, ferromanganese, the ferroalloys such as ferrochrome, ferrotungsten, silicomangan, be in metallurgical industry essential industry raw material and
The industrial chemicals such as calcium carbide.
And gas is formed by after mineral hot furnace reducing and smelting ore but wherein to be contained containing a large amount of dust and polluter
There are a large amount of available coal gas, claims mineral hot furnace coal gas, also known as raw coke oven gas, but the coal gas can typically be only used to steam boiler water supply
Heating, and gas piping is very easily pollutant-contaminated blocking, therefore gas piping system need to often clear up replacement, meanwhile, coal
Tail gas after gas burning also contains very more pollutants, is unable to direct emission, otherwise causes great environmental pollution.
Utility model content
For the defects in the prior art, the main purpose of the utility model be to provide one kind can be to a variety of mineral hot furnace coals
Gas is purified, recycles and can utilize method and apparatus using the mineral hot furnace coal-gas recovering of coal gas.
The utility model provides a kind of mineral hot furnace coal-gas recovering：Raw coke oven gas air inlet pipe, gravity oil-collecting are heavy
Falling unit, thick gas wind turbine, bag filter, purified gas exhaust pipe；The gravity oil-collecting sedimentation device includes level-one gravitational settling
Device, two level gravitational settler, three-level gravitational settler；The raw coke oven gas air inlet pipe is sequentially connected level-one gravitational settler, two level
Gravitational settler, three-level gravitational settler, thick gas wind turbine, bag filter, purified gas exhaust pipe.
Further, above-mentioned mineral hot furnace coal-gas recovering is added using the tank base of gravity oil-collecting sedimentation device described in equipment
Nitrogen injection is hardened for preventing ash.Namely gravity oil-collecting sedimentation device bottom is equipped with nitrogen injection device, it is right from the bottom to top
Nitrogen-blow is carried out at outlet at bottom to prevent the hardened blocking of collection ash inside gravity oil-collecting sedimentation device from exporting.
Further, for above-mentioned mineral hot furnace coal-gas recovering using in equipment, the three-level gravitational settler includes that heat exchanger is used
In its cooling internal mineral hot furnace coal gas.Three-level gravitational settler also has heat exchange function, energy other than playing sedimentation oil-collecting
It is enough that its internal mineral hot furnace coal gas is controllably cooled down.
Further, using in equipment, the discharge end of the bag filter is also associated with above-mentioned mineral hot furnace coal-gas recovering
Scrapper conveyor, the scrapper conveyor first end are connect with bag filter, scrapper conveyor second end connection collection ash cellar.Namely pass through scrapper conveyor
The dust that bag filter is collected is collected in collection ash cellar and is focused on.
Further, using in equipment, the discharge end of the bag filter is also associated with above-mentioned mineral hot furnace coal-gas recovering
Purified gas wind turbine.Namely purified gas is pressurizeed using purified gas wind turbine, blowback is carried out to improve bag filter to bag filter
It is service life.
Mineral hot furnace coal-gas recovering provided by the utility model includes step using the application method of equipment：
S1. mineral hot furnace coal gas control oxygen content is less than 2%, temperature not higher than 400 DEG C, then through gravitational precipitator dedusting
And it is cooled to 200-280 DEG C；
S2. it cools down the mineral hot furnace coal gas after gravitational dust collection and is pressurized to 6-10kPa by raw coke oven gas wind turbine, subsequently into cloth bag
Deduster dedusting obtains purified gas.
Further, above-mentioned mineral hot furnace coal-gas recovering is using in method, and mineral hot furnace coal gas is in each equipment in the step S1
Flow velocity in connecting pipe is not less than 18m/s.
Further, above-mentioned mineral hot furnace coal-gas recovering utilizes in method, the blowback air of bag filter in the step S2
Source uses purified purified gas, mineral hot furnace coal gas wind speed in bag filter to be not less than 0.39m/s.
Further, above-mentioned mineral hot furnace coal-gas recovering utilizes in method, mineral hot furnace in bag filter in the step S2
The temperature of coal gas is controlled not less than 180 DEG C.By temperature control in the generation that can greatly reduce tar not less than 180 DEG C, life
Production equipment more can work to steady and continuous, and service life increases.
Further, using in method, the pressure of the purified gas is controlled in 6-8kPa above-mentioned mineral hot furnace coal-gas recovering.
In conclusion mineral hot furnace coal-gas recovering provided by the utility model is simple to operation using method, by reasonably
Control technological parameter safely and effectively can carry out Recovery Purifying to mineral hot furnace coal gas, while make service life of equipment long, can
Continuous work will not occur greasy dirt or dust and the situations such as block, mineral hot furnace coal-gas recovering using equipment can continuous operation, equipment
Stability is good.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is the structural schematic diagram that the mineral hot furnace coal-gas recovering that one embodiment of the utility model provides utilizes equipment；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the vertical view of Fig. 1；
Fig. 4 is the A-A direction views of Fig. 1.
Specific implementation mode
The embodiment of technical solutions of the utility model is described in detail below in conjunction with attached drawing.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and this practicality cannot be limited with this
Novel protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.
In this application unless specifically defined or limited otherwise, the terms such as term " connection " shall be understood in a broad sense, example
Such as, it may be a fixed connection, may be a detachable connection, or is integral；It can be mechanical connection, can also be electrical connection；
It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements or two elements
Interaction relationship.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in utility model.
The utility model is described as follows according to the preferred embodiment that Fig. 1 to Fig. 4 is provided：
When deduster works, scorching hot is that mineral hot furnace tail gas passes through smoke pipe, i.e. raw coke oven gas, and temperature drops to 400 DEG C, famine
Coal gas enters level-one gravitational settler 2 via raw coke oven gas air inlet pipe 1 and carries out level-one gravitational dust collection, enters back into two level gravitational settler
3 carry out two level gravitational dust collection, at this time can trap in flue gas 50% large dust particle and tar.Cigarette after gravitational dust collection
Gas enters three-level gravitational settler 4 and is directly cooled down by heat exchanger, and flue-gas temperature is made to be down between 200-280 DEG C.It can incite somebody to action at this time
25% large dust particle and tar trap in flue gas.
One raw coke oven gas wind turbine 5 is set after cooler, ensures that electric furnace furnace pressure overcomes while -5pa-+5pa stablizes
Decompression caused by flue, level-one gravitational settler 2, two level gravitational settler 3, three-level gravitational settler 4, and can be subsequent cloth
Bag dust collector 7 provides enough positive pressures.
Flow velocity of the mineral hot furnace coal gas in above-mentioned each equipment connecting pipe is not less than 18m/s.
Raw coke oven gas four positive bag-type dust collectors 7 in parallel are passed through by gas-distributing pipe 6 after raw coke oven gas wind turbine 5 to carry out flue gas
Refined dedusting, purified flue gas pressurize through purified gas wind turbine 11, and pressure ensures that coal-gas recovering or igniting can be carried out after 6-10kpa
Diffuse operation.
Mineral hot furnace tail gas, which enters via water-cooled flue on the preceding pipeline of level-one gravitational settler 2, sets O2, CO and H2Analyzer,
If O2Content is less than 2%, then coal gas enters purification dust removal system, not then is diffused；Work as H2、O2Equal gas contents are more than report
Police circles prescribe a time limit, and the acoustic-optic alarm on operation console starts to alarm, if staff is not disposed in time, when gas contains
Amount more than setting danger line when whole system be automatically stopped operation, with prevent explosion or burning the case where.With true
The safe operation of insurance system.
The blowback air source of bag filter 7 uses purified purified gas, low after pressurizeing also by purified gas wind turbine 11
Coal gas is pressed to carry out offline reverse gas cleaning, the net atmospheric pressure 2000-4000Pa of anti-blowpipe, net 180-220 DEG C of the temperature degree of blowback to cloth bag.
Mineral hot furnace coal gas wind speed in bag filter 7 is not less than 0.39m/s, the temperature control of mineral hot furnace coal gas in bag filter 7
Not less than 180 DEG C.Purified purified gas is recycled by purified gas exhaust pipe 8.
7 ash hole of bag filter is connected with scrapper conveyor 9, and 9 other end of scrapper conveyor is connected with collection ash cellar 10.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (5)
1. a kind of mineral hot furnace coal-gas recovering utilizes equipment, which is characterized in that including：
Raw coke oven gas air inlet pipe, gravity oil-collecting sedimentation device, thick gas wind turbine, bag filter, purified gas exhaust pipe；
The gravity oil-collecting sedimentation device includes level-one gravitational settler, two level gravitational settler, three-level gravitational settler；
The raw coke oven gas air inlet pipe is sequentially connected level-one gravitational settler, two level gravitational settler, three-level gravitational settler, thick gas
Wind turbine, bag filter, purified gas exhaust pipe.
2. mineral hot furnace coal-gas recovering according to claim 1 utilizes equipment, which is characterized in that
The tank base of the gravity oil-collecting sedimentation device adds nitrogen injection for preventing ash hardened.
3. mineral hot furnace coal-gas recovering according to claim 1 utilizes equipment, which is characterized in that
The three-level gravitational settler includes that heat exchanger is used to cool down its internal mineral hot furnace coal gas.
4. mineral hot furnace coal-gas recovering according to claim 1 utilizes equipment, which is characterized in that
The discharge end of the bag filter is also associated with scrapper conveyor, and the scrapper conveyor first end connect with bag filter, scrapes
Trigger second end connection collection ash cellar.
5. mineral hot furnace coal-gas recovering according to claim 1 utilizes equipment, which is characterized in that
The discharge end of the bag filter is also associated with purified gas wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602268.8U CN207703012U (en) | 2017-11-24 | 2017-11-24 | Mineral hot furnace coal-gas recovering utilizes equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602268.8U CN207703012U (en) | 2017-11-24 | 2017-11-24 | Mineral hot furnace coal-gas recovering utilizes equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703012U true CN207703012U (en) | 2018-08-07 |
Family
ID=63023701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602268.8U Active CN207703012U (en) | 2017-11-24 | 2017-11-24 | Mineral hot furnace coal-gas recovering utilizes equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987892A (en) * | 2017-11-24 | 2018-05-04 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace coal-gas recovering Application way and equipment |
| CN116179245A (en) * | 2023-02-28 | 2023-05-30 | 无锡金球机械有限公司 | Method for efficiently recycling waste plastic pyrolysis oil |
-
2017
- 2017-11-24 CN CN201721602268.8U patent/CN207703012U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987892A (en) * | 2017-11-24 | 2018-05-04 | 重庆大朗冶金新材料有限公司 | Mineral hot furnace coal-gas recovering Application way and equipment |
| CN116179245A (en) * | 2023-02-28 | 2023-05-30 | 无锡金球机械有限公司 | Method for efficiently recycling waste plastic pyrolysis oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101539371B (en) | First flue gas dust removal and waste heat recovery system for electric stove | |
| CN206646064U (en) | A kind of dry coke quenching auxiliary | |
| CN101539369B (en) | Flue gas waste heat recovery and negative energy consumption dust-removal system for electric stove | |
| CN203869049U (en) | Hazardous waste incineration system | |
| CN205473605U (en) | Organic hazardous waste plasma melting gasification treatment system | |
| CN201136877Y (en) | Generating set through recovery waste beat of converter coal gas and dust cleaning apparatus by dry method | |
| CN206109292U (en) | Circulation gas desulfurization's dry quenching device | |
| CN207703012U (en) | Mineral hot furnace coal-gas recovering utilizes equipment | |
| CN107987892A (en) | Mineral hot furnace coal-gas recovering Application way and equipment | |
| CN103627844B (en) | Coal gas of converter direct combustion energy recovery purification system and technique | |
| CN104745762B (en) | Middle-temperature section dry dedusting of converter and residual neat recovering system and method | |
| CN202054856U (en) | Waste heat boiler device for recovering low-grade heat in coal gas of converter | |
| CN103849705B (en) | RECOVERY OF CONVERTER GAS UTILIZATION OF VESIDUAL HEAT IN and minuteness particle purification system | |
| CN214529105U (en) | Dry dedusting system of converter | |
| CN105498385A (en) | Furnace gas dust remover for sealed electric furnace | |
| CN101539370B (en) | First flue gas dust-removal and waste heat recovery system for electric stove without water cooling flue gas path | |
| CN202730089U (en) | High-temperature flammable gas electric dedusting device | |
| CN104154762A (en) | Smelting gas dedusting and purifying method for submerged arc furnace and smelting system of submerged arc furnace | |
| CN213132656U (en) | SCR denitration coal-fired power plant slag tap boiler waste gas processing system | |
| CN210291885U (en) | Melting pyrolysis system of industry and municipal solid waste | |
| CN104197725A (en) | Method for dedusting and purifying of smelting smoke of submerged arc furnace and comprehensive utilization of sensible heat and latent heat of smelting smoke | |
| CN103614509B (en) | A kind of carbon steel converter dry cloth bag dedusting process of whole process recovery waste heat and device thereof | |
| CN206391808U (en) | A kind of steel mill dust arrester | |
| CN105132615B (en) | Full-dry method converter gas purification and recovery process | |
| CN109839010B (en) | Large submerged arc furnace flue gas waste heat recycling system for removing dioxin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |