CN202876604U - Furnace gas purifying system for sealed calcium carbide furnace - Google Patents
Furnace gas purifying system for sealed calcium carbide furnace Download PDFInfo
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- CN202876604U CN202876604U CN2012205944947U CN201220594494U CN202876604U CN 202876604 U CN202876604 U CN 202876604U CN 2012205944947 U CN2012205944947 U CN 2012205944947U CN 201220594494 U CN201220594494 U CN 201220594494U CN 202876604 U CN202876604 U CN 202876604U
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- gas purifying
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- calcium carbide
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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
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Abstract
The utility model relates to a furnace gas purifying system for a sealed calcium carbide furnace. The furnace gas purifying system comprises the following connecting steps in sequence. The calcium carbide furnace gas is connected with the upper part of a sedimenting system by a water cooling system, an outlet of the calcium carbide furnace gas is connected with the lower part of a cooling system, and then is connected with the lower part of a filtering system by a pressuring device, the lower parts of the sedimenting system, the cooling system and the filtering system are connected with a dust transporting system, a water sealing device is arranged in back of the filtering system, and is connected to an inlet formed in the lower part of a cleaning system through the pressuring device, an upper-part outlet of the cleaning system is connected with the pressuring device and is connected with a buffering system by the water sealing device to follow-up workshop sections, and a lower-part outlet of the cleaning system is provided with the water sealing device, and is connected with a cleaning water oil removing device and a water circulation cooling device. According to the furnace gas purifying system, the problems that the system is single in purifying effect, the cleaning system is large in waste water generating quantity, an equipment pipeline is easy to block, the system is complex in technology and the like in the prior art can be solved, so that the long-term safe and reliable running of the furnace gas purifying system can be realized.
Description
Technical field:
The utility model relates to a kind of gas purge system, is specially a kind of enclosed combustion gas purifying system of calcium.
Background technology:
Calcium carbide furnace gas by volume percentage composition contains 70-90%CO, 5-7%H
2, 0.2-0.6%O
2, 2-5%CO
2, 150-600mg/Nm
3Tar, 100-150g/Nm
3The materials such as dust, and after the flue gas cleaning, most importantly remove dust and tar in the furnace gas, reduce furnace gas temperature, be convenient to carry, thereby reach the purpose that pure qi (oxygen) recycles.Calcium carbide furnace gas has following characteristics: the furnace gas dustiness is higher, and temperature fluctuation range is large, in 500 ℃ of-800 ℃ of scopes, understands instantaneous reaching more than 1000 ℃ when undesired when normal.The micro-tar that also has in the furnace gas in addition, temperature 〉=225 ℃ are gaseous state, can condensation during temperature＜225 ℃ out, easily make pipeline and cloth bag felt jam, and contained dust has more gently, thin, sticking, the difficult characteristics that capture, and these all are flue gas cleaning difficult problems to be solved.
At present domestic some producer employing early the furnace gas wet purification technology, by the transformation of constantly bringing forth new ideas, utilize the technique of wet cleaning recovery furnace gas comparatively ripe, but Shortcomings still: technique is comparatively complicated, and system's air-tightness is had relatively high expectations, and potential safety hazard is more, power consumption is larger, maintenance cost is higher, and floor space is large, and the cyanide wastewater of discharge can cause secondary pollution.The dry-method bag-type dust collecting technology of Introduced From Abroad industry kiln afterwards, be used for calcium carbide furnace gas, formed gradually existing dry method dust purification techniques, because the furnace of calcium carbide working of a furnace is unstable, the furnace gas pressure oscillation is larger, furnace gas temperature is difficult to the reasons such as control, and the high temperature resistant temperature of the filtering material in the filtration system only is 280 ℃, so filtering material is often burnt.
In a kind of purifying calcium carbide furnace gas method that Chinese patent 200610130705.0 provides, the part waste water that produces in the water-washing process is not recycled, and pressue device has been connected to after the buffer system, has caused process for purifying complicated, potential safety hazard is many, produces the problems such as wastewater flow rate is large.
Summary of the invention:
It is single that the utility model has solved the clean-up effect that exists in the prior art, potential safety hazard is more, equipment pipe easily stops up, the waste water generation is large, the problems such as process for purifying complexity provide a kind of simple in structure, and floor space is little, good purification, can with furnace gas safe transport, operation steady in a long-term sealed furnace flue gas cleaning system.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of enclosed combustion gas purifying system of calcium, comprise that furnace of calcium carbide, water cooling plant, sedimenting system, cooling system, pressue device, filtration system, water seal arrangement, dust transportation system, purging system, water purification degreasing unit, water circulation cooling device, buffer system connect to form successively, its purging system top outlet connects pressue device and buffer system, and the purging system lower part outlet is provided with water seal arrangement and is connected with water purification degreasing unit and water circulation cooling device.
Above-mentioned a kind of enclosed combustion gas purifying system of calcium, its purging system top outlet directly is connected with follow-up workshop section by pressue device; Calcium carbide furnace gas is when pressure oscillation is larger, and a part of furnace gas enters buffer system, can reduce fluctuation, plays the effect of equalizing pressure, and what make the pressue device continous-stable carries furnace gas to follow-up workshop section.
Above-mentioned a kind of enclosed combustion gas purifying system of calcium, its purging system lower part outlet forms closed cycle by water seal arrangement with the water purification degreasing unit that is connected and water circulation cooling device; Water seal arrangement remains certain liquid level, can avoid furnace gas to overflow, increased Security of the system, the water purification degreasing unit can be removed the tar impurity in the gas washing wastewater, waste water cooled off after water circulation cooling device made oil removing, circulation enters purging system again, has avoided gas washing wastewater to cause secondary pollution, has also saved water resource simultaneously.
Above-mentioned a kind of enclosed combustion gas purifying system of calcium is provided with water seal arrangement after the filtration system He before the buffer system; Play the effect isolated with rear system during parking, increased Security of the system.
Above-mentioned a kind of enclosed combustion gas purifying system of calcium, its sedimenting system can be cyclone dust collector or gravitational dust collecting device, and cooling system can be aerial cooler or water cooler, and filtration system can be sack cleaner; Cyclone dust removal or gravitational dust collection can effectively be removed big dust particle in the furnace gas, and air cooling or water cooling drop between 240-260 ℃ furnace gas temperature, and bag-type dust can be removed a large amount of dust in the furnace gas, and dust concentration is down to 50mg/Nm
3Below.
The beneficial effects of the utility model are embodied in:
Calcium carbide furnace gas can be removed the particle of particle diameter in the furnace gas 〉=0.7 μ m through sedimenting system, and under the cooling system acting in conjunction, furnace gas temperature is down to about 240-260 ℃, avoids the big dust particle that temperature is higher in the furnace gas to enter filtration system, damage equipment; Purging system can be down to furnace gas temperature below 40 ℃, form closed cycle with water purification degreasing unit and water circulation cooling device, the water purification degreasing unit is removed a large amount of tar that clean in the waste water, and the objectionable impurities in the furnace gas is effectively separated and is reclaimed, and makes it can not work the mischief to environment; Water circulation cooling device cools off gas washing wastewater, makes gas washing water circulation recycling, and whole system keeps material and heat balance keeping stable operation, the reasonable combination unit operations, and corollary apparatus equipment has reached desirable technical-economic index.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The specific embodiment that provides below in conjunction with accompanying drawing 1 is described further the utility model.
The utility model provides a kind of enclosed combustion gas purifying system of calcium, connected to form successively by furnace of calcium carbide 1, water cooling plant 2, sedimenting system 3, cooling system 4, filtration system 6, water seal arrangement 7, dust transportation system 12, purging system 8, water purification degreasing unit 9, water circulation cooling device 10, pressue device 5, buffer system 11, wherein sedimenting system 3, cooling system 4, filtration system 6 bottoms are connected with dust transportation system 12; The outlet of purging system 8 tops connects pressue device 5 and buffer system 11 simultaneously, and purging system 8 lower part outlets connect water purification degreasing unit 9 and water circulation cooling device 10 by water seal arrangement 7.
The course of work of the present utility model is: from furnace of calcium carbide 1 furnace gas out, about 500 ℃-800 ℃ of temperature, through water cooling plant 2, entered by sedimenting system 3 tops after the preliminary cooling, carry out one-time dedusting, furnace gas is out rear to be entered by cooling system 4 bottoms, carry out the reducing temperature twice dedusting, and entered by filtration system 6 bottoms by pressue device 5, carry out high-effective dust-removing, dust concentration is down to 50mg/Nm
3Below, three of process systems with the dust of collecting in the furnace gas, are transported to the external world by dust transportation system 12 successively; Again enter purging system 8 by pressue device 5 after the furnace gas preliminary purification, carry out final purification, cooling, temperature is down to below 40 ℃, dust concentration is down to 5mg/Nm
3In, lead at last pressue device 5 and cross buffer system 11 actings in conjunction, pure qi (oxygen) is delivered to follow-up workshop section 13.
Claims (5)
1. enclosed combustion gas purifying system of calcium, comprise that furnace of calcium carbide, water cooling plant, sedimenting system, cooling system, pressue device, filtration system, water seal arrangement, dust transportation system, purging system, water purification degreasing unit, water circulation cooling device, buffer system connect to form successively, it is characterized in that the outlet of purging system top connects pressue device and buffer system, the purging system lower part outlet is provided with water seal arrangement and is connected with water purification degreasing unit and water circulation cooling device.
2. a kind of enclosed combustion gas purifying system of calcium described in according to claim 1 is characterized in that the outlet of purging system top directly is connected with follow-up workshop section by pressue device.
3. a kind of enclosed combustion gas purifying system of calcium described in according to claim 1 is characterized in that the purging system lower part outlet forms closed cycle by water seal arrangement and the water purification degreasing unit that is connected and water circulation cooling device.
4. a kind of enclosed combustion gas purifying system of calcium described in according to claim 1 is characterized in that being provided with water seal arrangement after the filtration system and before the buffer system.
5. a kind of enclosed combustion gas purifying system of calcium described in according to claim 1 is characterized in that sedimenting system can be cyclone dust collector or gravitational dust collecting device, and cooling system can be aerial cooler or water cooler, and filtration system can be sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205944947U CN202876604U (en) | 2012-11-13 | 2012-11-13 | Furnace gas purifying system for sealed calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205944947U CN202876604U (en) | 2012-11-13 | 2012-11-13 | Furnace gas purifying system for sealed calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876604U true CN202876604U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205944947U Expired - Lifetime CN202876604U (en) | 2012-11-13 | 2012-11-13 | Furnace gas purifying system for sealed calcium carbide furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN202876604U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237771A (en) * | 2016-08-31 | 2016-12-21 | 西安科技大学 | Dust removal of calcium carbide furnace tar recovery method |
| CN106318421A (en) * | 2016-08-31 | 2017-01-11 | 西安科技大学 | Device for recovering fly ash and tar of calcium carbide furnace |
| CN109081662A (en) * | 2018-08-15 | 2018-12-25 | 安徽华塑股份有限公司 | Calcium carbide production purifies grey processing method |
-
2012
- 2012-11-13 CN CN2012205944947U patent/CN202876604U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237771A (en) * | 2016-08-31 | 2016-12-21 | 西安科技大学 | Dust removal of calcium carbide furnace tar recovery method |
| CN106318421A (en) * | 2016-08-31 | 2017-01-11 | 西安科技大学 | Device for recovering fly ash and tar of calcium carbide furnace |
| CN106318421B (en) * | 2016-08-31 | 2020-04-03 | 西安科技大学 | Calcium carbide furnace dust removal ash tar recovery device |
| CN109081662A (en) * | 2018-08-15 | 2018-12-25 | 安徽华塑股份有限公司 | Calcium carbide production purifies grey processing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |