CN202492549U - Device for ductile iron pipe annealing furnace - Google Patents
Device for ductile iron pipe annealing furnace Download PDFInfo
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- CN202492549U CN202492549U CN2012201359268U CN201220135926U CN202492549U CN 202492549 U CN202492549 U CN 202492549U CN 2012201359268 U CN2012201359268 U CN 2012201359268U CN 201220135926 U CN201220135926 U CN 201220135926U CN 202492549 U CN202492549 U CN 202492549U
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- annealing
- ductile iron
- iron pipe
- annealing furnace
- burner
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Abstract
The utility model belongs to the field of annealing furnaces and discloses a device for a ductile iron pipe annealing furnace. The device for the ductile iron pipe annealing furnace comprises an annealing trolley and a rail, and is characterized in that a gas pipeline is arranged inside the ductile iron pipe and provided with inside burners which are distributed evenly on the pipe wall of the gas pipeline. The device for the ductile iron pipe annealing furnace has the advantages of short heating time, low consumption, even heating, good annealing quality, high working efficiency and the like.
Description
Technical field
The utility model relates to the lehre field, relates in particular to a kind of spheroidal graphite cast iron tube annealing furnace and uses device.
Background technology
Traditional annealing type of heating is the burner combustion coke-oven gas that utilizes lehre side walls top, and the air in the lehre is heated, and with pyritous gas the ductile iron pipe in the lehre is heated again.There is following shortcoming in traditional annealing heating process:
(1) heat-up time long, the coke-oven gas consumption is big, production efficiency is not high.
Adopt this indirect heating mode to can be compared to the water in the pot and take boiled egg, cause heats relatively poor, heat-up time is long, consumes a large amount of coke-oven gas, and energy consumption is high, and production efficiency is not high.
(2) Heating temperature is inhomogeneous, influences annealing quality.
Adopt this indirect heating mode to cause the body non-uniform temperature of ductile iron pipe different sites easily; Even the body local temperature exceeds normal annealing region; Cause the local pearlite decomposition of body insufficient easily, thus influence annealing effect and quality product.
(3) annealing device is fragile, increases Material Cost, influences production efficiency.
This indirect heating mode is in to the ductile iron pipe heating; Annealing chassis to needing the annealed ductile iron pipe to play support, running effect also is exposed in the high-temperature gas; Cause annealing device to break down easily because of envrionment temperature is too high; Need to change the parts that damage, and increase manufacturing cost, influence rhythm of production.
The utility model content
The technical problem that the utility model will solve provides a kind of spheroidal graphite cast iron tube annealing furnace and uses device, have heat-up time short, consume low, homogeneous heating, good, the production efficiency advantages of higher of annealing quality.
The technical scheme that the utility model is taked is:
A kind of spheroidal graphite cast iron tube annealing furnace is used device, comprises annealing chassis, track, and its improvements are: be provided with the gas line that can place in the ductile iron pipe, gas line is provided with interior burner.
Interior burner is on the tube wall of gas line and is uniformly distributed with, and optimal way is uniformly distributed with for shape in the shape of a spiral.
Caliber according to ductile iron pipe is different, regulates temperature in the burner hearth through regulating gas flow.
Adopt the beneficial effect that technique scheme produced to be:
(1) adopts the mode of ductile iron pipe inside being carried out heating anneal; Burner combustion coke-oven gas with lehre side walls top is heated to be auxiliary type of heating; Shorten the distance of coal gas burner and spheroidal graphite cast iron tube wall greatly, strengthened heat-transfer effect, can shorten heat-up time significantly.Can reduce coke-oven gas consumption, practice thrift coal gas 50%, can practice thrift 4,000,000 yuan every year.
(2) mainly adopt inner direct heating mode; There is not the heating non-uniform phenomenon that causes because of the thermal resistance difference in the traditional heating mode; Can promote the Heating temperature homogenizing; Help the body annealing temperature is controlled in the normal TR, promote the abundant decomposition of body pearlitic structure, to improve annealing efficiency and quality product.
(3) be main with inner direct heating mode, indirect heating is auxilliary, and main heat concentrates on ductile iron pipe body the inside, has avoided the annealing chassis to be exposed in the high-temperature gas, helps protecting annealing device, reduces supplies consumption, stably manufactured efficient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Embodiment
A kind of spheroidal graphite cast iron tube annealing furnace is used device, comprises annealing chassis 3 and track 7, and it is characterized in that: setting can place the gas line 5 in the ductile iron pipe, and said gas line 5 is provided with interior burner 6.
Interior burner 6 is for to be uniformly distributed with on the tube wall of gas line 5, and optimal way is uniformly distributed with for shape in the shape of a spiral.
During work, ductile iron pipe is positioned on the annealing chassis 3, opens fire door 1, the chassis 3 of will annealing pushes in the burner hearth along track 7, opens outer burner 4 and carries out annealing operation with 6 pairs of ductile iron pipes of interior burner.
Claims (3)
1. a spheroidal graphite cast iron tube annealing furnace is used device, comprises annealing chassis (3), track (7), and it is characterized in that: be provided with the gas line (5) that can place in the ductile iron pipe, gas line (5) is provided with interior burner (6).
2. a kind of spheroidal graphite cast iron tube annealing furnace according to claim 1 is used device, it is characterized in that said interior burner (6) is uniformly distributed with on the tube wall of gas line (5).
3. a kind of spheroidal graphite cast iron tube annealing furnace according to claim 1 and 2 is used device, it is characterized in that said in burner (6) in the shape of a spiral shape be uniformly distributed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201359268U CN202492549U (en) | 2012-03-31 | 2012-03-31 | Device for ductile iron pipe annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201359268U CN202492549U (en) | 2012-03-31 | 2012-03-31 | Device for ductile iron pipe annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202492549U true CN202492549U (en) | 2012-10-17 |
Family
ID=46998785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201359268U Expired - Fee Related CN202492549U (en) | 2012-03-31 | 2012-03-31 | Device for ductile iron pipe annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202492549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486336A (en) * | 2018-03-15 | 2018-09-04 | 青岛中智达环保熔炼设备有限公司 | A kind of residual heat integrative utilizes, the ductile iron pipe manufacturing technique method of energy-saving and emission-reduction |
-
2012
- 2012-03-31 CN CN2012201359268U patent/CN202492549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486336A (en) * | 2018-03-15 | 2018-09-04 | 青岛中智达环保熔炼设备有限公司 | A kind of residual heat integrative utilizes, the ductile iron pipe manufacturing technique method of energy-saving and emission-reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |