CN201740409U - Device recovering waste heat from tail gas of closed calcium carbide furnace - Google Patents
Device recovering waste heat from tail gas of closed calcium carbide furnace Download PDFInfo
- Publication number
- CN201740409U CN201740409U CN2010201364869U CN201020136486U CN201740409U CN 201740409 U CN201740409 U CN 201740409U CN 2010201364869 U CN2010201364869 U CN 2010201364869U CN 201020136486 U CN201020136486 U CN 201020136486U CN 201740409 U CN201740409 U CN 201740409U
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- water
- calcium carbide
- cooling
- whirlwind
- tail gas
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
A device recovering waste heat from tail gas of a closed calcium carbide furnace comprises a water-cooling dust remover connected with the calcium carbide furnace, a booster fan, a combustion chamber, a burner connected with the combustion chamber and a blower, wherein the booster fan is arranged between the water-cooling dust remover and the burner; the blower is connected with the burner and supplies air required by the burner; the water-cooling dust remover comprises an inlet air flue, cyclones, a center cylinder, two secondary settling chambers and a water-cooling sleeve; the secondary settling chambers are arranged outside the cyclones, and air flues of the secondary settling chambers are communicated with the cyclones; the water-cooling sleeve is arranged outside the inlet air flue, the cyclones and the secondary settling chambers; cooling water is led into the water-cooling sleeve; the diameter d of each secondary settling chamber is one sixth to one fourth of the diameter D of the largest cyclone; the two secondary settling chambers of the water-cooling dust remover are symmetrically arranged on the sides of the cyclones far from the inlet air flue; and the water-cooling dust remover is sealed by water. The utility model has the advantages of dry dust removing, high cooling, explosion proofing and dust removing efficiencies, high system security, and the like.
Description
Technical field
The utility model relate to a kind of from tail gas of closed calcium carbide furnace the device of recovery waste heat, belong to industrial energy saving emission-reduction technology apparatus field.
Background technology
The calcium carbide industry is the industry of highly energy-consuming, high pollution.In calcium carbide production process, be accompanied by the generation of a large amount of high temperature, high dust furnace gas, the temperature of this furnace gas can reach more than 600 ℃, and main component is CO and H
2, content accounts for 70%～80% and 4%～10% of cumulative volume respectively, and all the other are N
2, CO
2With some inert gases; Dust content is about 100g/Nm
3More than, and dust granules is thin, short texture, has certain caking property; Also has a certain amount of tar in addition.Exactly because the particularity of tail gas, allowing recycle becomes difficult point, how to crack these difficult problems, allow energy-conservation, reduce discharging, consumption reduction fulfills, become calcium carbide Business survival and development key point.
At present, in view of industrial chemicals value and the fuel value of CO in the tail gas, the recycling to tail gas both at home and abroad mainly contains the following aspects:
1. after purifying by wet dedusting, reclaim CO
The wet dedusting process for purifying is comparatively ripe, is roughly: tail gas → gas cleaner → cyclone hydraulic separators → slightly wash tower → fine purifiation tower → blower fan → user.But because its process system is comparatively complicated, air-tightness requires high, and hidden danger is many, and system dynamic consumption is big, and occupation area of equipment is big, investment is high, operation and maintenance cost is big, can cause defectives such as secondary pollution, is not used widely.
2. purify gas burning lime kiln by dry method dust
The dry method dust process for purifying is roughly: tail gas → air blast cooling device → main air blower → sack cleaner → purification blower fan → booster fan → limekiln.The same with the wet dedusting purification, its seal request height, cloth bag requires the bearing temperature height, but its economy is much more superior than the wet method udst separation.
3. directly burning boiler utilization
Technological process is roughly: tail gas → waste heat boiler → sack cleaner → blower fan → emptying.Its technology is simple, invests lowly, has reduced the smoke content of vent gas.Weak point is that collecting ash is comparatively serious, and is difficult to cleaning, so often cause shutting down maintenance.
Because calcium carbide tail gas contains CO and high concentrate dust, explosion-proof and accumulatingdust is unusual important problem in the UTILIZATION OF VESIDUAL HEAT IN process, also is the key issue that influences its UTILIZATION OF VESIDUAL HEAT IN.In the existing UTILIZATION OF VESIDUAL HEAT IN technology, often there are this two problems.
The utility model content
The purpose of this utility model is to provide a kind of device from tail gas of closed calcium carbide furnace kind recovery waste heat, reduces the influence of the high concentrate dust in the calcium carbide stove exhaust utilization, and eliminates CO blast problem as far as possible.
The utility model is achieved through the following technical solutions: a kind of from tail gas of closed calcium carbide furnace the device of recovery waste heat, comprise the water-cooled deduster, booster fan, combustion chamber, the burner that links to each other with the combustion chamber and the air blast that link to each other with furnace of calcium carbide, described water-cooled deduster contains import air channel and plural whirlwind, and it is characterized in that: described water-cooled deduster also contains secondary settlement chamber and water collar; Described secondary settlement chamber is arranged on the whirlwind outside, has the air channel to communicate with whirlwind; Described water collar is arranged on import air channel, whirlwind and secondary settlement outside, encases import air channel, whirlwind and secondary settlement chamber, feeds cooling water in the water collar; The ash bucket below of described water-cooled deduster is immersed in the tank.
In the technique scheme, burner is the heavy caliber premix burner.The secondary settlement chamber of water-cooled deduster is two, be arranged symmetrically in the whirlwind tube away from import air channel side; The diameter d of described secondary settlement chamber is 1/4～1/6 of the sub-diameter D of maximum whirlwind.Water-cooled deduster adopts water seal.
The utility model compared with prior art has the following advantages: adopt the water-cooled deduster, realize that calcium carbide stove exhaust utilizes the dry method dust of process on the one hand, reach cooling and explosion-proof purpose on the other hand; Increase the secondary settlement chamber in the deduster, can improve efficiency of dust collection, reclaimed the dust in the tail gas to greatest extent; Water-cooled deduster adopts water seal, reduces the leakage of acetylene, has guaranteed the security of dust removal process.
Description of drawings
Fig. 1 is the schematic representation of apparatus of related a kind of of the utility model recovery waste heat from tail gas of closed calcium carbide furnace.
Fig. 2 is the schematic diagram of related a kind of of the utility model water-cooled deduster of the device of recovery waste heat from tail gas of closed calcium carbide furnace.
Fig. 3 is the schematic top plan view of related a kind of of the utility model water-cooled deduster of the device of recovery waste heat from tail gas of closed calcium carbide furnace.
Among the figure: the 1-water-cooled deduster; The 2-booster fan; The 3-burner; The 4-combustion chamber; The 5-air blast; 6-import air channel; 7-whirlwind; 8-secondary settlement chamber; The 9-water collar; The 10-tank; The 11-furnace of calcium carbide.
The specific embodiment
Describe concrete structure of the present utility model, operation principle and embodiment in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises water-cooled deduster 1, booster fan 2, burner 3, combustion chamber 4 and air blast 5.Water-cooled deduster 1 is connected after the furnace of calcium carbide 11, and dust-laden tail gas at first enters water-cooled deduster 1 dedusting after coming out from furnace of calcium carbide 11.As shown in Figures 2 and 3, water-cooled deduster 1 contains import air channel 6, plural whirlwind 7, and secondary settlement chamber 8 and water collar 9.
Water-cooled deduster 1 adopts water seal, promptly below water-cooled deduster 1 ash bucket tank 10 is set, and ash bucket is terminal to be immersed in the tank, has both prevented that CO from leaking, more prevent that air from entering the deduster from ash bucket, cause calcium carbide tail gas CO blast.
Booster fan 2 is set after the water-cooled deduster 1, lights sending into burner 3 again after the pressurization of the calcium carbide tail gas after the dedusting, and burning in combustion chamber 4.Air blast 5 links to each other with burner 3, provides burner 3 burning calcium carbide tail gas required air.Burner 3 adopts the heavy caliber premix burner, with adhesion and the obstruction that prevents tar.
Claims (3)
1. the device of a recovery waste heat from tail gas of closed calcium carbide furnace, comprise the water-cooled deduster (1), booster fan (2), combustion chamber (4), the burner (3) that links to each other with combustion chamber (4) and the air blast (5) that link to each other with furnace of calcium carbide, described water-cooled deduster (1) contains import air channel (6) and plural whirlwind (7), it is characterized in that: described water-cooled deduster (1) also contains secondary settlement chamber (8) and water collar (9), described secondary settlement chamber (8) is arranged on whirlwind (7) outside, has the air channel to communicate with whirlwind; Described water collar (9) is arranged on import air channel (6), whirlwind (7) and secondary settlement chamber (8) outside, encases import air channel, whirlwind and secondary settlement chamber, feeds cooling water in the water collar (9); The ash bucket below of described water-cooled deduster (1) is immersed in the tank (10).
2. according to claim 1 a kind of from tail gas of closed calcium carbide furnace the device of recovery waste heat, it is characterized in that: described burner (3) is the heavy caliber premix burner.
3. according to claim 1 a kind of from tail gas of closed calcium carbide furnace the device of recovery waste heat, it is characterized in that: described secondary settlement chamber (8) is more than two, be arranged symmetrically in whirlwind away from import air channel side; The diameter d of described secondary settlement chamber (8) is 1/4～1/6 of the sub-diameter D of maximum whirlwind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201364869U CN201740409U (en) | 2010-03-19 | 2010-03-19 | Device recovering waste heat from tail gas of closed calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201364869U CN201740409U (en) | 2010-03-19 | 2010-03-19 | Device recovering waste heat from tail gas of closed calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740409U true CN201740409U (en) | 2011-02-09 |
Family
ID=43555684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201364869U Expired - Lifetime CN201740409U (en) | 2010-03-19 | 2010-03-19 | Device recovering waste heat from tail gas of closed calcium carbide furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813423A (en) * | 2010-03-19 | 2010-08-25 | 昆明阳光基业股份有限公司 | Apparatus for recovering residual heat from tail gas of closed calcium carbide furnace |
| CN113663419A (en) * | 2021-09-08 | 2021-11-19 | 四川金汇能新材料股份有限公司 | Tail gas treatment equipment |
-
2010
- 2010-03-19 CN CN2010201364869U patent/CN201740409U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813423A (en) * | 2010-03-19 | 2010-08-25 | 昆明阳光基业股份有限公司 | Apparatus for recovering residual heat from tail gas of closed calcium carbide furnace |
| CN101813423B (en) * | 2010-03-19 | 2012-05-30 | 昆明阳光基业股份有限公司 | Apparatus for recovering residual heat from tail gas of closed calcium carbide furnace |
| CN113663419A (en) * | 2021-09-08 | 2021-11-19 | 四川金汇能新材料股份有限公司 | Tail gas treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120530 |