CN203163513U - Tail gas recovery device of sealed calcium carbide furnace - Google Patents
Tail gas recovery device of sealed calcium carbide furnace Download PDFInfo
- Publication number
- CN203163513U CN203163513U CN2013200197858U CN201320019785U CN203163513U CN 203163513 U CN203163513 U CN 203163513U CN 2013200197858 U CN2013200197858 U CN 2013200197858U CN 201320019785 U CN201320019785 U CN 201320019785U CN 203163513 U CN203163513 U CN 203163513U
- Authority
- CN
- China
- Prior art keywords
- settling chamber
- calcium carbide
- furnace
- tail gas
- chamber
- 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.)
- Expired - Lifetime
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- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 31
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000000746 purification Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000001354 calcination Methods 0.000 abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000003034 coal gas Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
本实用新型的密闭电石炉的尾气回收装置，包括沉降装置、冷却装置、布袋除尘器和净气风机，沉降装置包括一级沉降室和二级沉降室，冷却装置为冷却风机，一级沉降室、冷却风机、二级沉降室、煤气风机、布袋除尘器、净气风机依次连接，一级沉降室前面的净化烟道设有阀门，一级沉降室、二级沉降室和布袋除尘器分别经卸灰阀和波纹管连接刮板输送机。净气风机出口连接石灰窑（即煅烧室），刮板输送机连接储灰仓。本实用新型的有益效果是：提高了电炉功率，改善了电炉操作工作的劳动条件,降低了工人的劳动强度,炉面设备不受高温影响而延长了使用寿命；降低了电石生产成本,实现了尾气综合开发和利用。
The tail gas recovery device of the airtight calcium carbide furnace of the utility model includes a settling device, a cooling device, a bag filter and a clean air fan. The settling device includes a primary settling chamber and a secondary settling chamber. The cooling device is a cooling fan. The primary settling chamber , cooling fan, secondary settling chamber, gas blower, bag dust collector, and clean air fan are connected in sequence. The purification flue in front of the primary settling chamber is equipped with a valve, and the primary settling chamber, secondary settling chamber and bag filter pass through respectively. The dust discharge valve and bellows are connected to the scraper conveyor. The outlet of the clean air fan is connected to the lime kiln (calcination chamber), and the scraper conveyor is connected to the ash storage bin. The beneficial effects of the utility model are: the power of the electric furnace is increased, the working conditions of the electric furnace are improved, the labor intensity of the workers is reduced, the furnace surface equipment is not affected by high temperature and the service life is prolonged; the production cost of calcium carbide is reduced, and the Comprehensive development and utilization of tail gas.
Description
Technical field
The utility model belongs to the furnace of calcium carbide field, relates to a kind of device for recovering tail gas of closed calcium carbide furnace.
Background technology
Closed calcium carbide furnace refers to cover a bell at open calcium carbide oven, the carbon monoxide furnace gas that produces in the stove is extracted out with air-extractor, and recycled, owing to cover bell, has completely cut off air, and combustion phenomena does not take place on the charge level.This furnace of calcium carbide is that the basis on open calcium carbide oven, semi closed carbide furnace grows up.
For the recovery of closed calcium carbide furnace tail gas, because the wet cleaning water consumption is big, wet dedusting, the tail gas moisture after the dedusting is big, is not suitable for the requirement of calcined limestone.In addition, owing to contain the CN of trace in the waste water after the wet cleaning, do not reach discharge standard, also must remove cyanide to cooling water and handle, flow process is longer, so inadvisable.
Summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, the device for recovering tail gas of the closed calcium carbide furnace that provide a kind of high efficiency, improve working environment, reduces production costs.
The utility model is achieved by the following technical solution:
The device for recovering tail gas of closed calcium carbide furnace of the present utility model, comprise sedimentation device, cooling device, sack cleaner and pure qi (oxygen) blower fan, its special character is: sedimentation device comprises first grade subsides chamber and secondary expansion chamber, cooling device is cooling blower, first grade subsides chamber, cooling blower, secondary expansion chamber, gas fan, sack cleaner, pure qi (oxygen) blower fan connect successively, purification flue before the first grade subsides chamber is provided with valve, and first grade subsides chamber, secondary expansion chamber and sack cleaner are connected drag conveyor through unloading valve with bellows respectively.The outlet of pure qi (oxygen) blower fan connects limekiln (being calcining compartment), and drag conveyor connects ash-storing bin.
Sack cleaner is three that connect successively.
The beneficial effects of the utility model are:
(1) because CO gas is drawn out of entirely, combustion flame does not take place, so furnace power is improved on the boiler face.Having developed into 75 000～100000kVA at present, is much progress of calcium carbide industry.
(2) cover bell after, around electric furnace, there are not flame and dust, improved the working condition of furnace operation work, and adopt many material to manage clothes, furnace charge falls automatically, need not hand stock, has reduced working strength of workers, boiler face equipment is not subjected to temperatures involved yet, has prolonged service life.
(3) CO after the purification can be used as the base stock of fuel and organic synthesis industry, can reduce the calcium carbide production cost like this, realizes comprehensive exploitation and the utilization of tail gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
The device for recovering tail gas of closed calcium carbide furnace of the present utility model, comprise sedimentation device, cooling device, sack cleaner and pure qi (oxygen) blower fan, sedimentation device comprises first grade subsides chamber and secondary expansion chamber, cooling device is cooling blower, first grade subsides chamber, cooling blower, secondary expansion chamber, gas fan, sack cleaner, pure qi (oxygen) blower fan connect successively, purification flue before the first grade subsides chamber is provided with valve, and first grade subsides chamber, secondary expansion chamber and sack cleaner are connected drag conveyor through unloading valve with bellows respectively.The outlet of pure qi (oxygen) blower fan connects limekiln (being calcining compartment), and drag conveyor connects ash-storing bin.Sack cleaner is three that connect successively.
This product can also be operated electric furnace with various instrument, the calcium carbide technological process of production is more become rationally, and mechanization degree is also higher.As: press electrode and adopt oil pressure control; Rise fall of electrodes adopts computer control; Feed proportioning system adopts TV monitoring and controlling, coreless armature etc.Electric furnace furnace gas (CO) is drawn out of and purified treatment, and the CO after process dedusting, cooling, the purification can be used as the base stock of fuel and organic synthesis industry, both can reduce the calcium carbide cost, can realize tail gas comprehensive exploitation and utilization again.Therefore, this product adopts sealed furnace to substitute open calcium carbide oven, and the fuel gas (being mainly CO) that reclaims in the tail gas is used as fuel.
Technological process: the furnace gas that closed calcium carbide furnace produces is at 500～650 ℃, instantaneously reaches as high as 800 ℃.This product adopts dry method (cloth-bag type) process for purifying to carry out flue gas cleaning.Calcium carbide furnace gas enters the first grade subsides chamber through butterfly valve and purification flue, big dust particle sedimentation with 40%-50% in the furnace gas, enter drag conveyor through unloading valve, furnace gas after processed enters aerial cooler (the being cooling blower) processing of lowering the temperature from the first grade subsides chamber, cool to 150 ℃, through the laggard gas fan of secondary expansion chamber dedusting, three further dedustings of sack cleaner are sent in pressurization through gas fan, and the clean gas after the purification is sent into the limekiln through the pure qi (oxygen) blower fan and made fuel.The dust that dedusting obtains is sent to ash-storing bin by drag conveyor, is transported by automobile, can make fertilizer etc.
In process of production, every 30000 kVA closed calcium carbide furnaces, producing the coal gas amount is 2300～3800 Nm
3/ h, every about 2680 Nm of the average recyclable coal gas amount of stove
3/ h.Every 25500 kVA closed calcium carbide furnaces, producing the coal gas amount is 1920～3160 Nm
3/ h, every about 2236 Nm of the average recyclable coal gas amount of stove
3/ h.CO after the purification can be used as the base stock of fuel and organic synthesis industry, the remarkable like this calcium carbide production cost that reduced.
Calcium carbide factory's furnace of calcium carbide changes sealed furnace into by the semi-hermetic stove, and the CO tail gas that produces in the production process is reclaimed, and can be used as energy substitution coal dust lime calcining behind the reclaiming clean.Be example to produce 1000000 tons of calcium carbide production lines per year, can reduce CO exhaust emissions 5.53 hundred million m every year
3, provide every year the energy 21.64 ten thousand tce.
Simultaneously, after furnace of calcium carbide changed sealed furnace into by the semi-hermetic stove, power savings was good, and calcium carbide per ton is produced power consumption and reduced 150kWh.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200197858U CN203163513U (en) | 2013-01-15 | 2013-01-15 | Tail gas recovery device of sealed calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200197858U CN203163513U (en) | 2013-01-15 | 2013-01-15 | Tail gas recovery device of sealed calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163513U true CN203163513U (en) | 2013-08-28 |
Family
ID=49024692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200197858U Expired - Lifetime CN203163513U (en) | 2013-01-15 | 2013-01-15 | Tail gas recovery device of sealed calcium carbide furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203163513U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433263A (en) * | 2013-08-30 | 2013-12-11 | 茌平信发华兴实业有限公司 | Method and device for dust removal of calcium carbide production |
| CN103712466A (en) * | 2013-12-11 | 2014-04-09 | 宁夏森源重工设备有限公司 | Integrated device of systems for purifying tail gas, discharging smoke in front of furnace, splattering and removing dust for submerged arc furnace |
| CN104101225A (en) * | 2014-07-18 | 2014-10-15 | 武汉东晟捷能科技有限公司 | System and method for increasing comprehensive utilization ratio of tail gas of calcium carbide furnace |
| CN104511223A (en) * | 2013-09-30 | 2015-04-15 | 宁夏嘉翔自控技术有限公司 | Calcium carbide furnace tail gas purification system |
| CN104515405A (en) * | 2013-09-30 | 2015-04-15 | 宁夏嘉翔自控技术有限公司 | Electrical automatic control system of calcium carbide furnace tail gas purifying system |
-
2013
- 2013-01-15 CN CN2013200197858U patent/CN203163513U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433263A (en) * | 2013-08-30 | 2013-12-11 | 茌平信发华兴实业有限公司 | Method and device for dust removal of calcium carbide production |
| CN103433263B (en) * | 2013-08-30 | 2016-03-09 | 茌平信发华兴实业有限公司 | A kind of calcium carbide produces the dust collection method of dust arrester |
| CN104511223A (en) * | 2013-09-30 | 2015-04-15 | 宁夏嘉翔自控技术有限公司 | Calcium carbide furnace tail gas purification system |
| CN104515405A (en) * | 2013-09-30 | 2015-04-15 | 宁夏嘉翔自控技术有限公司 | Electrical automatic control system of calcium carbide furnace tail gas purifying system |
| CN103712466A (en) * | 2013-12-11 | 2014-04-09 | 宁夏森源重工设备有限公司 | Integrated device of systems for purifying tail gas, discharging smoke in front of furnace, splattering and removing dust for submerged arc furnace |
| CN103712466B (en) * | 2013-12-11 | 2015-09-09 | 宁夏森源重工设备有限公司 | Mineral hot furnace tail gas clean-up stokehold smoke evacuation dedusting loose some dust pelletizing system integration apparatus |
| CN104101225A (en) * | 2014-07-18 | 2014-10-15 | 武汉东晟捷能科技有限公司 | System and method for increasing comprehensive utilization ratio of tail gas of calcium carbide furnace |
| CN104101225B (en) * | 2014-07-18 | 2016-04-13 | 武汉东晟捷能科技有限公司 | For improving the system and method for calcium carbide stove exhaust comprehensive utilization ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |