CN201990490U - Nitrogen making system for annealing furnace - Google Patents
Nitrogen making system for annealing furnace Download PDFInfo
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- CN201990490U CN201990490U CN2011200894627U CN201120089462U CN201990490U CN 201990490 U CN201990490 U CN 201990490U CN 2011200894627 U CN2011200894627 U CN 2011200894627U CN 201120089462 U CN201120089462 U CN 201120089462U CN 201990490 U CN201990490 U CN 201990490U
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- nitrogen
- air
- nitrogen making
- annealing furnace
- filter
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Abstract
The utility model relates to a nitrogen making system for an annealing furnace, which comprises an air compressor, an air filter, a freezing and drying machine, a defroster, an active carbon filter, an air buffer tank, a nitrogen making machine, a buffer tank and a filter which are connected in sequence. As the air filter and the freezing and drying machine are additionally arranged on the conventional nitrogen making machine, the nitrogen making capacity is enhanced, the nitrogen making purity is improved, and the production cost is greatly reduced.
Description
Technical field
The utility model relates to the silicon steel production technical field, is specifically related to the nitrogen gas generating system that a kind of annealing furnace is used.
Background technology
For making steel band reach desired electromagnetism and terms of mechanics performance, continuous annealing furnace commonly used carries out anneal to steel band in the silicon steel production process.Wherein, continuous annealing furnace needs a large amount of nitrogen that use in order to keep protective atmosphere in the stove.The supply of nitrogen is generally used liquid nitrogen or is utilized Nitrogen plant by different methods nitrogen composition in the air to be carried out extraction and application.Because liquid nitrogen costs an arm and a leg, so generally use equipment of making nitrogen system nitrogen.
Existing nitrogen gas generating system mainly comprises air compressor, mist eliminator, activated charcoal filter, air cushioning jar, Nitrogen plant, surge tank, the strainer that connects in turn.Nitrogen plant utilizes the oxygen molecule in the gac molecular sieve adsorption pressurized air, thereby isolates nitrogen, and decompress(ion) translation oxygen molecule adsorbs new compressed-air actuated oxygen molecule more then, so repeats, and nitrogen is made in circulation.
Because gac molecular sieve adsorptive power to oxygen under 25 ℃ state is the strongest, along with the rising of temperature, its adsorptive power constantly descends.High temperature can have a strong impact on the adsorptive power of gac molecular sieve, causes produced nitrogen flow deficiency, purity not high.The nitrogen flow deficiency causes production line must utilize liquid nitrogen to replenish, and increases production cost greatly; The not high furnace atmosphere that causes annealing of nitrogen gas purity changes, and influences the quality of steel.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of high flow capacity, highly purified nitrogen gas generating system are provided.
For achieving the above object, the utility model adopts following technical scheme:
A kind of annealing furnace nitrogen gas generating system comprises air compressor and mist eliminator, also comprises the freeze drier that places between described air compressor and the mist eliminator.
For making the purity that improves made nitrogen, also between air compressor and freeze drier, increased air filter.
The beneficial effects of the utility model are: 1, increased freeze drier between the air compressor of existing nitrogen gas generating system and fly-ash separator, the air of compression is lowered the temperature, thereby the adsorption of enhanced activity carbon molecular sieve strengthens the system nitrogen ability of Nitrogen plant; 2, increase air filter, air filters out dust earlier after compressing, moisture resupplies Nitrogen plant, improves the purity of nitrogen.
Description of drawings
Fig. 1 is the structural representation of a kind of annealing furnace of the utility model with nitrogen gas generating system.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of annealing furnace of the utility model is described in further detail with nitrogen gas generating system.
Please refer to accompanying drawing 1, a kind of annealing furnace of the utility model comprises air compressor 1, air filter 2, freeze drier 3, mist eliminator 4, activated charcoal filter 5, air cushioning jar 6, Nitrogen plant 7, surge tank 8, the strainer 9 that connects in turn with nitrogen gas generating system.
The principle of work of nitrogen gas generating system of the present utility model is as follows:
Air adds by air compressor 1 and presses to high temperature compressed air; High temperature compressed air enters freeze drier 3 through air filter 2 after part dust, moisture filter; 3 pairs of high temperature compressed airs of freeze drier carry out cooling and drying to be handled; Treated pressurized air leads to mist eliminator 4, removes vaporific profit; The pressurized air of removing behind the profit just enters activated charcoal filter 5, and most of oxygen molecule is adsorbed; The pressurized air main component of coming out from activated charcoal filter is a nitrogen, and nitrogen storage is in air cushioning jar 6; The nitrogen that Nitrogen plant 7 is just sent the air cushioning jar here carries out making nitrogen by pressure swing adsorption, and the nitrogen storage of making is in surge tank 8; The nitrogen of 9 pairs of making of strainer is done further filtration and is removed moisture, in needs nitrogen is sent to production line.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to technical scheme described above and design.
Claims (2)
1. an annealing furnace nitrogen gas generating system comprises air compressor and mist eliminator, it is characterized in that: also comprise the freeze drier that places between described air compressor and the mist eliminator.
2. annealing furnace nitrogen gas generating system as claimed in claim 1 is characterized in that: also comprise the air filter that places between described air compressor and the freeze drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200894627U CN201990490U (en) | 2011-03-30 | 2011-03-30 | Nitrogen making system for annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200894627U CN201990490U (en) | 2011-03-30 | 2011-03-30 | Nitrogen making system for annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990490U true CN201990490U (en) | 2011-09-28 |
Family
ID=44666984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200894627U Expired - Fee Related CN201990490U (en) | 2011-03-30 | 2011-03-30 | Nitrogen making system for annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015936A (en) * | 2016-06-21 | 2016-10-12 | 西南石油大学 | Portable type fuel gas replacement device and replacement method |
-
2011
- 2011-03-30 CN CN2011200894627U patent/CN201990490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015936A (en) * | 2016-06-21 | 2016-10-12 | 西南石油大学 | Portable type fuel gas replacement device and replacement method |
| CN106015936B (en) * | 2016-06-21 | 2018-04-20 | 西南石油大学 | A kind of portable gas displacement apparatus and method of replacing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140330 |