CN202074830U - Curtain for heating furnace or heat retaining furnace - Google Patents
Curtain for heating furnace or heat retaining furnace Download PDFInfo
- Publication number
- CN202074830U CN202074830U CN201020659297XU CN201020659297U CN202074830U CN 202074830 U CN202074830 U CN 202074830U CN 201020659297X U CN201020659297X U CN 201020659297XU CN 201020659297 U CN201020659297 U CN 201020659297U CN 202074830 U CN202074830 U CN 202074830U
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- cavity
- door curtain
- furnace
- coolant
- curtain
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Abstract
The utility model provides a curtain for a heating furnace or a heat retaining furnace. A curtain body comprises a first cavity close to a furnace body and a second cavity close to the outside, wherein heating insulating material is filled in the first cavity, the second cavity is provided with a coolant inlet and a coolant outlet, and coolant flows to the coolant outlet from the coolant inlet in the second cavity. The curtain for the heating furnace or the heat retaining furnace can be used for reducing the heat release in the furnace, reducing the heat loss and therefore the annealing quality of a centrifugal ductile iron pipe is ensured; meanwhile, the curtain has the advantages of energy saving and consumption reduction.
Description
Technical field
The utility model relates to the heat treatment field, relates in particular to a kind of door curtain that is applied to tunnel annealing furnace stokehold inlet.
Background technology
Centrifugal ductile cast iron pipes be a kind ofly be widely used in feeding water, the cast tube in draining and the gas conveying tube line, in its production process, annealing is directly to determine the hardness of cast tube and the important step of toughness.Qualified for guaranteeing centrifugal ductile cast iron pipes annealing, keep the interior temperature of stove quite crucial, temperature plays key effect in the stove and the door curtain of annealing is to keeping, the good furnace heat loss of door curtain is just few, temperature is just enough high in the stove, just can satisfy centrifugal ductile cast iron pipes annealing demand, therefore need the door curtain of a high insulating effect of design to reduce thermal loss.
Traditional annealing furnace with door curtain as shown in Figure 1, it uses fire-resistant platelet to form chain with heat-resisting wire rod string together, forms door curtain by many chain groups more together.
This door curtain shortcoming is that heat insulation effect is bad, and the heat in the stove can be dispersed into the outside from the slit between the platelet, causes thermal loss bigger, thereby influences the annealing quality of cast tube.
Summary of the invention
The utility model provides a kind of door curtain that is used for heating furnace or holding furnace in order to solve the problems of the technologies described above, and its main part comprises first cavity near body of heater, is filled with the insulation material in described first cavity; With second cavity near the outside, described second cavity has coolant entrance and coolant outlet, and cooling agent flows to described coolant outlet from described coolant entrance in described second cavity.
Described cooling agent can be a water, and described insulation material can be a heat-preservation cotton.
Can have passive support member in described second cavity, described support member can be a rivet.
Can be formed with coolant flow passage in described second cavity, described coolant flow passage can be separated by dividing plate, and described coolant flow passage can be for snakelike.
Described door curtain can further include the hanger that is formed on the described main part.
Described coolant entrance can be arranged on the lower sidewall of described second cavity, and described coolant outlet can be arranged on the side wall upper part of described second cavity.
The door curtain that is used for heating furnace or holding furnace that the utility model provides can reduce furnace heat and leak, and reduces thermal loss, thereby has guaranteed the centrifugal ductile cast iron pipes annealing quality, has energy-saving and cost-reducing advantage simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of traditional annealing furnace with door curtain.
Fig. 2 is the stereogram according to the door curtain of the utility model embodiment.
Fig. 3 is according to the door curtain of an embodiment of the utility model sectional view along the line A-A among Fig. 2.
Fig. 4 is according to the door curtain of an embodiment of the utility model sectional view along the line B-B among Fig. 3.
Fig. 5 is according to the door curtain of another embodiment of the utility model sectional view along the line A-A among Fig. 2.
Fig. 6 is according to the door curtain of another embodiment of the utility model sectional view along the line B-B among Fig. 5.
Explanation to Reference numeral:
1 main part, 2 first cavitys, 3 second cavitys
4 coolant entrances, 5 coolant outlets, 6 rivets
7 dividing plates, 8 hangers
The specific embodiment
Embodiment one
As shown in Figure 2, door curtain main body 1 part is divided into two cavitys among Fig. 2, near body of heater be that first cavity, 2, the first cavitys 2 use heat-preservation cotton to fill, near outside is to be furnished with coolant entrance 4 and coolant outlet 5 on second cavity, 3, the second cavitys 3.During use, 2 pairs of annealing furnaces of first cavity play insulation effect, are burnt out owing to temperature is too high in order to prevent door curtain, and cooling agent flows through second cavity by coolant entrance 4 and coolant outlet 5, circulation cooling door curtain, and wherein cooling agent can be a water.
Shown in Fig. 3,4, second cavity 3 is a cavity, wherein has passive rivet 6.
The top of door curtain main body is equipped with hanger 8, by hanger 8 door curtain of can slinging, thereby allow foundry goods to enter annealing furnace, and the adjustable height of door curtain can be regulated according to the size of cast tube diameter.When the cast tube of entering annealing furnace hour, door curtain descends, door curtain and fire door gap smaller, the heat minimizing relatively that leaks, thus play insulation effect.
In order to guarantee that cooling agent is full of second cavity 3, coolant entrance 4 is arranged on the lower sidewall of second cavity 3, and coolant outlet 5 is arranged on the side wall upper part of second cavity 3.The sidewall of second cavity 3 is meant the narrower wall that is positioned at the door curtain both sides.
Embodiment two
Door curtain in the present embodiment except that second cavity 3 with embodiment one in door curtain have identical structure.In the present embodiment, use dividing plate 7 to be separated out snakelike cooling channel in second cavity 3, as shown in Figure 5, cooling agent flows along direction shown in the arrow in second cavity 3.By adopting this structure, further improved radiating efficiency, make the cooling effect of second cavity 3 better.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being made, is equal to replacements, improvement etc., all should be included within the scope that the utility model protects.
Claims (10)
1. door curtain that is used for heating furnace or holding furnace, its main part comprises
First cavity near body of heater is filled with the insulation material in described first cavity; With
Near the second outside cavity, described second cavity has coolant entrance and coolant outlet, and is cold
But agent flows to described coolant outlet from described coolant entrance in described second cavity.
2. door curtain according to claim 1, wherein said cooling agent is a water.
3. door curtain according to claim 1, wherein said insulation material is a heat-preservation cotton.
4. door curtain according to claim 1 has had support member in wherein said second cavity.
5. door curtain according to claim 4, wherein said support member is a rivet.
6. door curtain according to claim 1 is formed with coolant flow passage in wherein said second cavity.
7. door curtain according to claim 5, wherein said coolant flow passage is separated by dividing plate.
8. door curtain according to claim 5, wherein said coolant flow passage are snakelike.
9. door curtain according to claim 1, it also further comprises the hanger that is formed on the described main part.
10. door curtain according to claim 1 is characterized in that described coolant entrance is arranged on the lower sidewall of described second cavity, and described coolant outlet is arranged on the side wall upper part of described second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659297XU CN202074830U (en) | 2010-12-15 | 2010-12-15 | Curtain for heating furnace or heat retaining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020659297XU CN202074830U (en) | 2010-12-15 | 2010-12-15 | Curtain for heating furnace or heat retaining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074830U true CN202074830U (en) | 2011-12-14 |
Family
ID=45112930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020659297XU Expired - Fee Related CN202074830U (en) | 2010-12-15 | 2010-12-15 | Curtain for heating furnace or heat retaining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162700A (en) * | 2010-12-15 | 2011-08-24 | 高平市泫氏铸管有限公司 | Door curtain for heating furnace or heat-holding furnace |
-
2010
- 2010-12-15 CN CN201020659297XU patent/CN202074830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162700A (en) * | 2010-12-15 | 2011-08-24 | 高平市泫氏铸管有限公司 | Door curtain for heating furnace or heat-holding furnace |
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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: 20111214 Termination date: 20121215 |