CN201395615Y - Cooling device of roller bottom type continuous annealing furnace - Google Patents
Cooling device of roller bottom type continuous annealing furnace Download PDFInfo
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- CN201395615Y CN201395615Y CN2009200714398U CN200920071439U CN201395615Y CN 201395615 Y CN201395615 Y CN 201395615Y CN 2009200714398 U CN2009200714398 U CN 2009200714398U CN 200920071439 U CN200920071439 U CN 200920071439U CN 201395615 Y CN201395615 Y CN 201395615Y
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- roller
- annealing furnace
- continuous annealing
- spray box
- refrigerating unit
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Abstract
The utility model belongs to the field of annealing technique and particularly relates to a cooling device of an annealing furnace. The cooling device of the roller bottom type continuous annealing furnace comprises an air-water heat exchanger (2), a circulating blower (3), a cooling chamber (5) and a furnace roller (6). The circulating blower (3) is sequentially connected with a protective air inlet (4), a distribution box (8) and a spray box (9) by pipelines; an adjusting valve (11) is arranged between the distribution box (8) and the spray box (9), and a nozzle (10) of the spray box (9) isarranged below the furnace roller (6). The cooling device can adjust the air spraying volume and position of the spray box according to the length of materials; the cooling is uniform and quick, the cooling speed can be adjusted, the efficiency is high, the quality of equipment and products cannot be affected due to water leakage of a water jacket, and the protective air blow-sweeping volume of the cooling chamber is reduced by an air seal; the cooling device is mainly used for the roller bottom type continuous annealing furnace of long rod materials, can also be used for reforming the presentroller bottom type continuous annealing furnace, and has obvious economic benefits.
Description
Technical field
The utility model belongs to the annealing process field, relates in particular to a kind of annealing furnace refrigerating unit.
Background technology
Roller-hearth continuous annealing furnace can be divided into protective atmosphere and two kinds of heat treatment modes of non-protective atmosphere.As shown in Figure 1, the roller hearth type non-oxidation continuous annealing furnace mainly comprises feeding skid a, feed chamber b, annealing furnace body c, outlet cooling room (discharge chamber) d and unloading skid e, normal operation process is: at first, workpiece enters feed chamber b from feeding skid a, feed chamber b door is closed, sweep with the protection air-blowing then, reach requirement after, workpiece enters in controlled atmosphere or the special atmosphere oven with that; Through after preheating, heating, insulation and the cooling process, workpiece comes out to enter outlet cooling room d again in annealing furnace body c in annealing furnace body c; Workpiece cools off fast at outlet cooling room d, finishes the back from exporting cooling room d discharging to outlet unloading skid e; After workpiece came out, outlet cooling room d door was closed, and scanned out a mouthful cooling room d with the protection air-blowing and next batch workpiece to be cooled such as reached behind the specified requirement.
At present, material method of cooling at cooling room behind continuous annealing furnace mainly contains dual mode:
A kind of is as shown in Figure 2; after shielding gas is pumped out from protection gas outlet 1 by recirculation blower 3 in the cooling room 5 through an air to water heat exchanger 2; here entered in the cooling room from the protection gas at several positions such as furnace roof or furnace side inlet 4 again after the water cooling, make the workpiece on the furnace roller 6 in shielding gas, be subjected to quick cooling.This method is because the protection gas of cooling room inlet 4 is subjected to the pipeline position limit, limited amount, and also also distant from workpiece, relatively be fit to miniature workpiece and small-sized cooling room, otherwise can cause the circulating current short circuit, inefficiency and inhomogeneous cooling.
Also having a kind of is that water jacket is installed at positions such as furnace bottom, furnace roof or furnace sides, and the logical water coolant in water jacket the inside cools off material indirectly by the protection gas that cools off in the cooling room earlier.This method speed of cooling is slow, wayward and adjusting speed of cooling, and inefficiency is seeped in the cooling room but also exist water jacket to leak, and influences the hidden danger of equipment and quality product.
The utility model content
Technical problem to be solved in the utility model provides a kind of roller-hearth continuous annealing furnace refrigerating unit; this device is mainly used in microscler rod product non-oxidation anneal; adopt the protection gas circulation type of cooling; it is low to have solved in the prior art cooling efficiency, and the water jacket hidden danger of leaking influences the defective of equipment and quality product.
A kind of roller-hearth continuous annealing furnace refrigerating unit; comprise air to water heat exchanger, recirculation blower, cooling room and furnace roller; the inlet mouth of described air to water heat exchanger links to each other by the protection gas outlet of vapor pipe and cooling room; the purging discharge outlet also is housed on the vapor pipe; the venting port of air to water heat exchanger links to each other with recirculation blower; described recirculation blower connects protection gas inlet, distributor box and spray box in turn by pipeline; between described distributor box and the spray box variable valve is housed, the nozzle of described spray box is positioned at the below of furnace roller.
Described spray box has several, arranges along feedstock direction, and each spray box respectively is equipped with a variable valve.
The top board of described cooling room is followed level α at angle, progressively reduces along the material trend.
The α angle is 0.5 °≤α≤5 °
The base plate of spray box is followed level β at angle, makes leave with rage to progressively raising along protection.
The β angle is 0.5 °≤β≤5 °.
The gas curtain generating unit is housed on the discharge door of described cooling room.
Described gas curtain generating unit is made up of the last jet pipe that is installed in the discharge door upper end respectively and the following jet pipe of lower end, and the tuyere of the tuyere of last jet pipe and following jet pipe is along the even staggered arrangement of jet pipe length direction.
Described nozzle is uniform distribution, staggered arrangement on spray box.
The utility model adopts the protection gas circulation type of cooling, can regulate spray box by being provided with in the cooling room bottom, the venting port mode is set at the top realizes cooling and regulate.The utility model can be regulated the jet amount and the jet position of spray box according to material length because the spray orifice of spray box designs at the material position, and cooling evenly, cooling is fast, speed of cooling is adjustable, and the efficient height can be because of water jacket the leak equipment that influences and quality product yet; The utility model is by being provided with nozzle at the cooling room discharge door in addition, and jet sealing gland when the cooling room discharge door is opened stops air admission, can reduce the cooling room protection air-blowing amount of sweeping; The utility model is mainly used in microscler bar roller bottom type and even moves back stove, also can be used for transforming existing roller bottom type and even moves back stove, and remarkable economic efficiency is arranged.
Description of drawings
Fig. 1 is the roller-hearth continuous annealing furnace structural representation;
Fig. 2 is existing gas circulation formula cooling room structural representation;
Fig. 3 looks synoptic diagram (omitting air to water heat exchanger and recirculation blower) for the master of the utility model roller-hearth continuous annealing furnace refrigerating unit;
Fig. 4 looks synoptic diagram (omitting air to water heat exchanger and recirculation blower) for a left side of the present utility model;
Fig. 5 is a schematic top plan view of the present utility model;
Fig. 6 is a spray box nozzle synoptic diagram;
Fig. 7 is a distributor box domain structure synoptic diagram.
Among the figure: the outlet of 1-protection gas, 2-air to water heat exchanger, 3-recirculation blower, 4-protection gas inlet, 5-cooling room, 6-furnace roller; 7-purges discharge outlet, 8-distributor box, 9-spray box, 10-nozzle, 11-variable valve; the 51-top board, 52-discharge door, the last jet pipe of 53-, jet pipe under the 54-, 91-base plate.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in Fig. 3,4,5,6,7, a kind of roller-hearth continuous annealing furnace refrigerating unit, comprise air to water heat exchanger 2, recirculation blower 3, cooling room 5 and furnace roller 6, the inlet mouth of described air to water heat exchanger 2 links to each other by the protection gas outlet 1 of vapor pipe and cooling room 5, also be equipped with on the vapor pipe and purge discharge outlet 7, the venting port of air to water heat exchanger 2 links to each other with recirculation blower 3, and described recirculation blower 3 connects protection gas inlet 4, distributor box 8 and spray box 9 in turn by pipeline; Described spray box 9 has several, has four in the present embodiment, arranges along feedstock direction, and a variable valve 11 respectively is housed between each spray box 9 and the distributor box 8, and uniform distribution, staggered arrangement have towards the nozzle 10 of the below of furnace roller 6 on the spray box 9; The top board 51 of described cooling room 5 is followed level α at angle, progressively reduces by 0.5 °≤α≤5 ° along the material trend; The base plate 91 of described spray box 9 is followed level β at angle, makes leave with rage to progressively raising 0.5 °≤β≤5 ° along protection; On the discharge door 52 of described cooling room 5 the gas curtain generating unit is housed; Described gas curtain generating unit is made up of the following jet pipe 54 of last jet pipe 53 that is installed in discharge door 52 upper ends respectively and lower end, and the tuyere of the tuyere of last jet pipe 53 and following jet pipe 54 is along the even staggered arrangement of jet pipe length direction.
The circulation cold air that recirculation blower 3 is sent air-water heat exchanger 2 here is sent into distributor box 8 from protection gas inlet 4, and distributor box 8 is assigned to each spray box 9 to circulation cold air again; Control by variable valve between distributor box 8 and the spray box 9.
Jet pipe on the discharge door of cooling room, ejection protection gas forms sealing gland when the cooling room discharge door is opened, and stops extraneous air to enter cooling room, reduces cooling room and purges protection gas consumption and purge time.
Claims (9)
1. roller-hearth continuous annealing furnace refrigerating unit; comprise air to water heat exchanger (2); recirculation blower (3); cooling room (5) and furnace roller (6); the inlet mouth of described air to water heat exchanger (2) links to each other by the protection gas outlet (1) of vapor pipe and cooling room (5); also be equipped with on the vapor pipe and purge discharge outlet (7); the venting port of air to water heat exchanger (2) links to each other with recirculation blower (3); it is characterized in that: described recirculation blower (3) connects protection gas inlet (4) in turn by pipeline; distributor box (8) and spray box (9); between described distributor box (8) and the spray box (9) variable valve (11) is housed, the nozzle (10) of described spray box (9) is positioned at the below of furnace roller (6).
2. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 1 is characterized in that: described spray box (9) has several, arranges along feedstock direction, and each spray box (9) respectively is equipped with a variable valve (11).
3. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 1 is characterized in that: the top board (51) of described cooling room (5) is followed level α at angle, progressively reduces along the material trend.
4. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 3 is characterized in that: the α angle is 0.5 °≤α≤5 °
5. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 1 or 2 is characterized in that: the base plate (91) of spray box (9) is followed level β at angle, makes leave with rage to progressively raising along protection.
6. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 5 is characterized in that: the β angle is 0.5 °≤β≤5 °.
7. as the described roller-hearth continuous annealing furnace refrigerating unit of any claim in the claim 1～6, it is characterized in that: on the discharge door (52) of described cooling room (5) the gas curtain generating unit is housed.
8. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 7, it is characterized in that: described gas curtain generating unit is made up of the last jet pipe (53) that is installed in discharge door (52) upper end respectively and the following jet pipe (54) of lower end, and the tuyere of the tuyere of last jet pipe (53) and following jet pipe (54) is along the even staggered arrangement of jet pipe length direction.
9. roller-hearth continuous annealing furnace refrigerating unit as claimed in claim 1 is characterized in that: described nozzle (10) is gone up uniform distribution, staggered arrangement at spray box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200714398U CN201395615Y (en) | 2009-04-30 | 2009-04-30 | Cooling device of roller bottom type continuous annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200714398U CN201395615Y (en) | 2009-04-30 | 2009-04-30 | Cooling device of roller bottom type continuous annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201395615Y true CN201395615Y (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200714398U Expired - Fee Related CN201395615Y (en) | 2009-04-30 | 2009-04-30 | Cooling device of roller bottom type continuous annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201395615Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131839A (en) * | 2011-12-01 | 2013-06-05 | 湖南晟通科技集团有限公司 | Furnace body of continuous annealing furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller hearth type heat treatment furnace for plates and heat treatment method |
| CN106440773A (en) * | 2016-11-21 | 2017-02-22 | 艾伯纳工业炉(太仓)有限公司 | Vertical pushing furnace bottom flow guide and ejection system |
-
2009
- 2009-04-30 CN CN2009200714398U patent/CN201395615Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131839A (en) * | 2011-12-01 | 2013-06-05 | 湖南晟通科技集团有限公司 | Furnace body of continuous annealing furnace |
| CN103131839B (en) * | 2011-12-01 | 2016-05-25 | 晟通科技集团有限公司 | A kind of body of heater of continuous annealing furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller hearth type heat treatment furnace for plates and heat treatment method |
| CN103667666B (en) * | 2013-11-29 | 2016-02-24 | 中冶南方(武汉)威仕工业炉有限公司 | Heat treatment method of continuous roller hearth type heat treatment furnace for plates |
| CN106440773A (en) * | 2016-11-21 | 2017-02-22 | 艾伯纳工业炉(太仓)有限公司 | Vertical pushing furnace bottom flow guide and ejection system |
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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: 20100203 Termination date: 20140430 |