CN201611222U - Novel system for flue gas purification and dust recovery of ferroalloy electric furnace - Google Patents
Novel system for flue gas purification and dust recovery of ferroalloy electric furnace Download PDFInfo
- Publication number
- CN201611222U CN201611222U CN200920125947XU CN200920125947U CN201611222U CN 201611222 U CN201611222 U CN 201611222U CN 200920125947X U CN200920125947X U CN 200920125947XU CN 200920125947 U CN200920125947 U CN 200920125947U CN 201611222 U CN201611222 U CN 201611222U
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- dust
- back suction
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- pneumatic
- electric furnace
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a novel system for flue gas purification and dust recovery of a ferroalloy electric furnace. The system comprises a dust recovering and conveying system composed of a smoke exhaust valve, an induced draft fan, a dust remover, a powder bin, a cindervalve and an air-solid separator. A mechanical cooler and a two-stage cyclone pre-dust remover are arranged between the smoke exhaust valve and the induced draft fan; the dust remover adopts a positive pressure filtration back suction bag type dust remover, in which a pneumatic three-way valve in mounted; and a high-pressure back suction fan is arranged between the pneumatic three-way valve and the powder bin. The system has the advantages of stable operation, lower energy consumption, long service life, simple structure, convenient operation and maintenance, small investment, improves the technical effect of flue gas treatment project, and has remarkable economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of iron alloy electric furnace gas cleaning fume recovery system, belongs to the environmental protection equipment technical field.
Background technology
Iron alloy electric furnace produces a large amount of high temperature dust gas in the product smelting process, the severe contamination surrounding enviroment cause serious harm to the operator is healthy.There is strict demand in country to the smoke gas treatment of iron alloy electric furnace, overwhelming majority's ferroalloy enterprise has installed flue gas purifying equipment, but the dust separation system of most flue gas purifying equipments design at present is unreasonable, the cost height, automaticity is low, and operating maintenance inconvenience can not steady in a long-termly move and the flue dust qualified discharge, cause the discharging of loosing serious, surrounding enviroment are greatly affected.
The utility model content
The purpose of this utility model is at the problems referred to above, provides a kind of investment little, effective, is convenient to realize the iron alloy electric furnace gas cleaning fume recovery system of automation, so that fume emission reaches compliance with environmental protection requirements.
The utility model adopts following proposal:
Described iron alloy electric furnace gas cleaning fume recovery system comprises exhaust smoke valve, air-introduced machine, ash cleaning and dust removing device, the powder storehouse, the dust that unloading valve and gas-solid separator are formed reclaims induction system, be provided with mechanical cooler and dual stage cyclone pre-duster between exhaust smoke valve and the air-introduced machine, described ash cleaning and dust removing device is positive press filtration back suction wind sleeve formula ash cleaning and dust removing device, Pneumatic three-way valve is installed in this positive press filtration back suction wind sleeve formula deduster, be provided with high pressure back suction blower fan between Pneumatic three-way valve and the powder storehouse, the described high pressure back suction blower fan while is as the power of back suction wind sleeve formula ash cleaning and dust removing device and gas-solid separator.
Described Pneumatic three-way valve connects cylinder and air compressor machine.
Be provided with an air intake reducer pipe between cyclone dust removal and back suction wind sleeve formula ash cleaning and dust removing device, these reducer pipe two ends link to each other with the air-introduced machine outlet of cyclone dust collectors and the Pneumatic three-way valve air inlet in the pocket type ash cleaning and dust removing device respectively.
The utility model combines back suction wind soot cleaning system and Pneumatic ash conveying, storage ash system, by air intake reducer pipe, triple valve and gas-solid separator, guarantee dust pelletizing system stable operation, reduce system energy consumption, prolong its service life, simple in structure, convenient operating maintenance, invest for a short time, improve smoke gas treatment engineering effect.
Description of drawings
Fig. 1 is the utility model structured flowchart.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in the figure, iron alloy electric furnace gas cleaning fume recovery system described in the utility model comprises exhaust smoke valve, air-introduced machine, ash cleaning and dust removing device, the powder storehouse, the dust that unloading valve and gas-solid separator are formed reclaims induction system, be provided with mechanical cooler and dual stage cyclone pre-duster between exhaust smoke valve and the air-introduced machine, described ash cleaning and dust removing device is positive press filtration back suction wind sleeve formula ash cleaning and dust removing device, Pneumatic three-way valve is installed in this positive press filtration back suction wind sleeve formula deduster, be provided with high pressure back suction blower fan between Pneumatic three-way valve and the powder storehouse, the described high pressure back suction blower fan while is as the power of back suction wind sleeve formula ash cleaning and dust removing device and gas-solid separator.Described Pneumatic three-way valve connects cylinder and air compressor machine.
Be provided with an air intake reducer pipe between cyclone dust collectors and back suction wind sleeve formula ash cleaning and dust removing device, these reducer pipe two ends link to each other with the air-introduced machine outlet of cyclone dust collectors and the Pneumatic three-way valve air inlet in the pocket type ash cleaning and dust removing device respectively.
The technological process of the utility model gas cleaning fume recovery system work is: the high temperature that produces in the electric furnace smelting process (average 500 ℃) is when ash-laden gas comes out, close the valve that diffuses on the former smoke evacuation chimney, under the draft of air-introduced machine, lower the temperature through mechanical cooler, enter the dual stage cyclone deduster and carry out pre-dedusting, again through air-introduced machine with ash-laden gas through the air intake reducer pipe, triple valve is sent into positive press filtration back air suction deashing dust cleaner, pure qi (oxygen) enters atmosphere from the exhaust opening on dedusting gas top, dust is trapped within the filter bag, when dust thickness increases, filtration resistance increases, and filters air quantity and reduces, and closes the air inlet of Pneumatic three-way valve, open the back suction air port, under high pressure back suction fan action, positive press filtration back air suction deashing dust cleaner cloth bag is evacuated, dust enters the back suction airduct with back draught, enter the powder storehouse again, gas-solid separator through top, powder storehouse separates, and pure qi (oxygen) enters atmosphere, and dust is then regularly discharged outward transport.
Characteristics of the present utility model are:
1, adopt mechanical cooler to reduce flue-gas temperature, exhaust gas volumn reduces, and the cigarette temperature is easy to control, is conducive to reduce the load of flue gas subsequent processing device, reduces equipment investment;
2, adopt the dual stage cyclone pre-duster to carry out that silicon-carbon separates and pre-dedusting, it is big to process air quantity, the separative efficiency height, the silicon powder silicon content reaches 94%, resistance low (＜800Pa), thereby reach the purpose of energy saving of system;
3, draft soot cleaning system and fume recovery system are combined, when having avoided the draft deashing of past existence, the high ash-laden gas that comes out with draft enters air-introduced machine, send into sack cleaner by air-introduced machine again carries out the second time and filters, the compressor flow that causes increases, load variations is big, ash-removal effect is poor, the phenomenon that life of equipment shortens. Because ash bucket is not deposited ash, the ash bucket angle increases, and highly reduces, and saves steel; Dust all by the defeated ash of pipeline pneumatic, is received ash in bottom, powder storehouse, and receiving the ash amount increases, and environmental condition is good, and operating personnel are few, and labour intensity is low, and the performance of enterprises is remarkable.
Claims (3)
1. iron alloy electric furnace gas cleaning fume recovery system, comprise exhaust smoke valve, air-introduced machine, ash cleaning and dust removing device, the powder storehouse, the dust that unloading valve and gas-solid separator are formed reclaims induction system, it is characterized in that: be provided with mechanical cooler and dual stage cyclone pre-duster between exhaust smoke valve and the air-introduced machine, described ash cleaning and dust removing device is positive press filtration back suction wind sleeve formula ash cleaning and dust removing device, Pneumatic three-way valve is installed in this positive press filtration back suction wind sleeve formula deduster, be provided with high pressure back suction blower fan between Pneumatic three-way valve and the powder storehouse, the described high pressure back suction blower fan while is as the power of back suction wind sleeve formula ash cleaning and dust removing device and gas-solid separator.
2. iron alloy electric furnace gas cleaning fume recovery system as claimed in claim 1 is characterized in that: described Pneumatic three-way valve connects cylinder and air compressor machine.
3. iron alloy electric furnace gas cleaning fume recovery system as claimed in claim 1, it is characterized in that: described iron alloy electric furnace gas cleaning fume recovery system is to be provided with an air intake reducer pipe between cyclone dust removal and back suction wind sleeve formula ash cleaning and dust removing device at double deduster, and these reducer pipe two ends link to each other with the air-introduced machine outlet of cyclone dust collectors and the Pneumatic three-way valve air inlet in the pocket type ash cleaning and dust removing device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920125947XU CN201611222U (en) | 2009-12-18 | 2009-12-18 | Novel system for flue gas purification and dust recovery of ferroalloy electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920125947XU CN201611222U (en) | 2009-12-18 | 2009-12-18 | Novel system for flue gas purification and dust recovery of ferroalloy electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611222U true CN201611222U (en) | 2010-10-20 |
Family
ID=42961856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920125947XU Expired - Fee Related CN201611222U (en) | 2009-12-18 | 2009-12-18 | Novel system for flue gas purification and dust recovery of ferroalloy electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055619A (en) * | 2013-01-17 | 2013-04-24 | 遵义市贵科科技有限公司 | Ferroalloy electric furnace flue gas purifying and dust recovering novel technology and device thereof |
-
2009
- 2009-12-18 CN CN200920125947XU patent/CN201611222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055619A (en) * | 2013-01-17 | 2013-04-24 | 遵义市贵科科技有限公司 | Ferroalloy electric furnace flue gas purifying and dust recovering novel technology and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZUNYI GUIKE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZUNYI ZHONGDE ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20120713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120713 Address after: 563000 Ping Qiao Industrial Park, Zunyi, Guizhou Patentee after: Zunyi Guike Technology Co., Ltd. Address before: 563000 Hongkong Road, Guizhou city of Zunyi province Wujiang Du remote power plant building Patentee before: Zunyi City Zhongde Environmental Protection Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20131218 |