CN202945293U - All-hydrogen severe convection bell-type furnace - Google Patents
All-hydrogen severe convection bell-type furnace Download PDFInfo
- Publication number
- CN202945293U CN202945293U CN 201220611065 CN201220611065U CN202945293U CN 202945293 U CN202945293 U CN 202945293U CN 201220611065 CN201220611065 CN 201220611065 CN 201220611065 U CN201220611065 U CN 201220611065U CN 202945293 U CN202945293 U CN 202945293U
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- furnace
- inner cover
- hydrogen
- cover
- heating mantles
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- Expired - Fee Related
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Furnace Details (AREA)
Abstract
The utility model relates to an all-hydrogen severe convection bell-type furnace which comprises a heating cover (1), an inner cover (2) and a furnace bench (3) and a variable-frequency fan (4), wherein the inner cover (2) is arranged in a furnace cavity of the heating cover (1), the furnace bench (3) is arranged at the bottom of the inner cover (2), and the variable-frequency fan (4) is arranged at the bottom of the furnace bench (3); and the bell-type furnace is characterized in that an oxygen content monitoring device (8) communicated with the furnace cavity is arranged on the outer side of the upper part of the heating cover (1), and the outer wall of the inner cover (2) is provided with a waste hydrogen burner (7). According to the utility model, N2 is replaced with H2, so that the production efficiency is greatly improved; an automated safety interlocking function is adopted, so that the reliable operation of the all-hydrogen furnace is ensured; and exhaust gas is monitored, so that an effect of environmental friendliness and energy conservation is achieved.
Description
Technical field
The utility model relates to a kind of equipment of heat-treating for materials such as cold rolled sheet (band), titanium alloy strip, nickelalloy strips, particularly relates to the pure H of a kind of utilization
2Gas is to the recycling technology of metallic substance at the resist technology of heat treatment process and waste gas, useless cigarette, energy-conserving and environment-protective.
Background technology
Along with Chinese national economy is built develop rapidly, market (aircraft industry, car industry, household electrical appliances industry, metal packing material etc.) are increasing to the demand of cold rolled sheet (titanium alloy strip, automobile high-strength deep-draw strip, dry plate etc.) product.Strip after cold rolling need by annealing thermal treatment, can obtain good mechanical property and deep drawing formability.Domestic traditional bell furnace equipment great majority are the protection equipment of nitrogen hydrogen mixeding gas; exist production efficiency low; control mode falls behind; after thermal treatment, material mechanical property and surface quality do not reach standard-required; thereby caused some large-scale iron and steel enterprises of China all to adopt import equipment; cost is high, and maintenance and parts procurement are extremely inconvenient, and delivery cycle is also longer.The handled quality product class of bell furnace equipment of private enterprise's buying nitrogen hydrogen mixeding gas is lower, can not adapt to the requirement of China's product transformation upgrading.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of the Whole hydrogen strong conversion cover furnace equipment of innovative design is being arranged aspect product structure, automatization control mode, energy-conserving and environment-protective, with the further quality that improves China's steel products, satisfy China at required acceptable materials of industry such as aircraft manufacturing, automobile making, household electrical appliances.
The purpose of this utility model is achieved in that a kind of Whole hydrogen strong conversion cover furnace, it comprises heating mantles, inner cover, table and frequency conversion fan, described inner cover is arranged in the furnace chamber of heating mantles, described table is arranged on the bottom of inner cover, described variable-frequency motor is arranged at the bottom of table, it is characterized in that in the upper outside of described heating mantles, the oxygen level monitoring device that is communicated with furnace chamber being installed, be provided with useless hydrogen burner on the outer wall of described inner cover.
The outer wall of described inner cover adopts ripple struction.
Adopt high temperature resistant silica gel sealing between described heating mantles and table.
Compared with prior art, the beneficial effects of the utility model are:
The utlity model has following advantage:
1, H
2Thermal conductivity be N
27 times, use 100% pure H
2After protection gas, production efficiency is by than the original 25%-30% that improved, H
2Density little, be again very strong reducing gas, seepage force is strong, heat transfer rate is fast, can guarantee temperature uniformity reach ± 3 ℃, and coil of strip is difficult for oxidation.
2, due to H
2Density little, be only N
2R 1/14, so the table motor can only be the frequency conversion debugging, wind speed becomes 2300r/min by original 750/1500 r/min, has increased airflow pressure and strong circulating effect, has accelerated again heat transfer rate, makes cold rolled sheet have better mechanical property.
3, originally protecting gas is nitrogen and hydrogen mixture; also without the control techniques of flashing back; now change the perhydro protective atmosphere into by nitrogen protection gas; add the safe and effective Controlling System linkage technology of automatization; make the cold-rolling oil that in stove, protective atmosphere connects in two coil of strips discharge together inner cover; simultaneously collect again the heating mantles internal combustion, both increased heat energy, be unlikely again contaminate environment.
4, set up the monitoring of the oxygen level in combustion tail gas, made the ratio of air and combustion gas more accurate, guaranteed that combustion gas is more abundant, with save energy.
5, due to the increase of the danger coefficient of perhydro stove, so activated automatization safety interlocking function, guarantee that the perhydro stove is reliable, be perfectly safe.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein:
Heating mantles 1
Table 3
Burner 5
Coil of strip 6
Oxygen level monitoring device 8.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of brand-new design with the Whole hydrogen strong conversion cover furnace of intelligent control system, formed by heating mantles 1, inner cover 2, table 3, frequency conversion fan 4, described inner cover 2 is arranged in the furnace chamber of heating mantles 1, and described heating mantles 1 and inner cover 2 are cup-like structure, and described table 3 is arranged on the bottom of inner cover 2, described table 3 preheats and adopts high temperature resistant silica gel sealing between cover 1, improve the sealing effectiveness of former useful sand, improved environment, reduced pollution.When spraying into heating mantles 1 with inner cover 2 burning, burner 5 produces high temperature when combustion gases, owing to there is no flame-proof thermal insulation material in heating mantles 1, the high-temperature instantaneous conduction that produces is on inner cover 2, then by inner cover 2, the mode of heat by radiation and convection current is delivered on processing work coil of strip 6, because the straight tube structure with inner cover 2 changes ripple struction into, strengthen the Rigidity and strength of inner cover 2, reduced thermal stresses, greatly improved the work-ing life of inner cover 2.In order to guarantee processing component, particularly in the heat treatment process to the high degree of accuracy cold rolled sheet below 0.08 ㎜, guarantee not bondingly, and can effectively prevent the phenomenons such as coil of strip 7 surperficial dezincifys.
in order to guarantee that furnace temperature is even, not cooling rapidly, the utility model has been set up strong circulative convection system, the slow cooling system, method is to be provided with frequency conversion fan 4 devices in the bottom of table 3, shielding gas with highly purified hydrogen during as material heat treatment (is 7 times of nitrogen because of the thermal conductivity of hydrogen, and density is only 1/14 of nitrogen, and hydrogen has good reductibility) send in furnace chamber at a high speed by frequency conversion fan 4, and forcibly pure hydrogen gas is circulated between coil of strip 6, be provided with simultaneously useless hydrogen burner 7 on the outer wall of inner cover 2, remaining useless hydrogen burning is fallen to guarantee the safety of equipment.The coil of strip 6 of processing has been played the provide protection of essence; simultaneously due to pump circulation; make the temperature in furnace chamber remain even up and down; avoided due to the impact of the non-uniform temperature in furnace chamber on process components and parts; thereby fundamentally shortened the heat treated cycle; production efficiency has improved 25%-30% than originally, save energy nearly 30%.Simultaneously set up oxygen level monitoring device 8 on heating mantles 1, the oxygen level in combustion tail gas is accurately monitored, make the ratio of air and combustion gas more accurate, guarantee that combustion gas is more abundant, reach the effect of energy-conserving and environment-protective.
Claims (3)
1. Whole hydrogen strong conversion cover furnace, it comprises heating mantles (1), inner cover (2), table (3) and frequency conversion fan (4), described inner cover (2) is arranged in the furnace chamber of heating mantles (1), described table (3) is arranged on the bottom of inner cover (2), described variable-frequency motor (4) is arranged at the bottom of table (3), it is characterized in that in the upper outside of described heating mantles (1), the oxygen level monitoring device (8) that is communicated with furnace chamber being installed, be provided with useless hydrogen burner (7) on the outer wall of described inner cover (2).
2. a kind of Whole hydrogen strong conversion cover furnace according to claim 1, is characterized in that the outer wall of described inner cover (2) adopts ripple struction.
3. a kind of Whole hydrogen strong conversion cover furnace according to claim 1 and 2, is characterized in that adopting between described heating mantles (1) and table (3) high temperature resistant silica gel sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611065 CN202945293U (en) | 2012-11-19 | 2012-11-19 | All-hydrogen severe convection bell-type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611065 CN202945293U (en) | 2012-11-19 | 2012-11-19 | All-hydrogen severe convection bell-type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945293U true CN202945293U (en) | 2013-05-22 |
Family
ID=48421000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611065 Expired - Fee Related CN202945293U (en) | 2012-11-19 | 2012-11-19 | All-hydrogen severe convection bell-type furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945293U (en) |
-
2012
- 2012-11-19 CN CN 201220611065 patent/CN202945293U/en not_active Expired - Fee Related
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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: JIANGSU KAITEER INDUSTRIAL FURNACE CO., LTD. Free format text: FORMER OWNER: IANGSU KEITEL NEW COMPOUND DECORATING MATERIAL CO., LTD. Effective date: 20130619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130619 Address after: 214500 Xinqiao Industrial Park, Jingjiang, Jiangsu, Taizhou Patentee after: Jiangsu Kaiteer Industrial Furnace Co., Ltd. Address before: 214500, the 1 section of Xinqiao village, Xinqiao village, Xinqiao Town, Taizhou, Jiangsu, Jingjiang Patentee before: JIANGSU KAITEER NEW TYPE DECORATIVE MATERIALS CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |