CN202047121U - Copper and copper alloy continuous rolling net type annealing furnace - Google Patents
Copper and copper alloy continuous rolling net type annealing furnace Download PDFInfo
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- CN202047121U CN202047121U CN2011200952800U CN201120095280U CN202047121U CN 202047121 U CN202047121 U CN 202047121U CN 2011200952800 U CN2011200952800 U CN 2011200952800U CN 201120095280 U CN201120095280 U CN 201120095280U CN 202047121 U CN202047121 U CN 202047121U
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Abstract
The utility model provides a copper and copper alloy continuous rolling net type annealing furnace. The annealing furnace comprises a fixed frame, a continuous rolling net conveying mechanism and an electrical control system, wherein a feeding section, a preheating section, a heating section, a cooling section and a discharging section are arranged on a supporting frame sequentially along the conveying direction; the heating section comprises a convection heating chamber and a radiation temperature-equalizing chamber; and the cooling section comprises a first slow cooling section, a jet flow cooling chamber, a second slow cooling section, a third cooling section and a fourth cooling section sequentially along the conveying direction. The annealing furnace of the utility model adopts a sectional type cooling structure, effectively reduces temperature difference stress generated in the process of cooling products, contributes to improving dimensional precision of high-quality and high-alloying products, avoids annealing wastes, meets the continuous-bright annealing requirement of copper and copper alloy products better, and is applicable to bright annealing of red copper, brass, bronze and cupronickel alloy pipe bar materials.
Description
Technical field
The utility model belongs to metallurgical technology field, relates to a kind of copper and copper alloy annealing furnace, relates in particular to the continuous roller net of a kind of copper and copper alloy formula annealing furnace, is applicable to the clean annealing of red copper, brass, bronze, copper-nickel alloy compo pipe bar.
Background technology
Copper and the employed pit furnace of copper alloy clean annealing and Bogie hearth furnace are the interruption mode of operation, once adorn a furnace charge, and after annealing finished, furnace charge needed furnace cooling, and the annealing cycle is long, and production efficiency is low.Though roller bottom type annealing furnace can be realized continuously, clean annealing, owing to have friction between furnace roller and the annealing pipe bar, often there is scratch in the product surface after the annealing, reduces the quality and the lumber recovery of high-precision tube bar greatly.The continuous annealing furnace of depressed structure with lock is all improving a lot aspect production efficiency and the annealing quality, and the subject matter of existence is: the furnace binding complexity, the type of furnace is bulky, floor space is big, one-time investment is high.Particularly during blowing out-blow-on, when carrying out gas displacement in stove, the needed time often reached about a week, and " blow-on displacement " needed power consumption, gas consumption are very high.For guaranteeing the consistence of annealing quality, lock gas annealing furnace often still needs charged, band fate row at shutdown period, the production cost height, and this type of furnace relatively adapts to the continuous annealing operation of copper alloy product in enormous quantities.
The utility model content
The purpose of this utility model is in order to overcome problems of the prior art, the continuous roller net of a kind of copper and copper alloy formula annealing furnace to be provided.
The continuous roller net of copper of the present utility model and copper alloy formula annealing furnace comprises support frame, transporting mechanism and electric control system, and delivery direction is disposed with material loading section, preheating section, heating zone, cooling section, discharging section in the support frame upper edge, it is characterized in that:
Described transporting mechanism is continuous roller net formula transporting mechanism, is made up of the furnace roller, contact roller, guide deflection sheave and the network chain that are arranged on the support frame;
The outlet of the import of described preheating section, the outlet of heating zone and cooling section is respectively arranged with the choke sealing curtain;
The import of described preheating section, the outlet of cooling section are respectively arranged with the nitrogen jet apparatus;
The import of described preheating section, the outlet of cooling section are respectively arranged with gas skirt and smoke exhaust pipe;
The top of furnace roller is provided with electrothermal radiation tube in the described heating zone; Described heating zone is divided into convective heating chamber and the equal greenhouse of radiation; At least one group of strong convection recirculation blower and director are set in the convective heating chamber, and are provided with nitrogen-hydrogen mixed gas adding pipe at each group recirculation blower place; Be provided with nitrogen-hydrogen mixed gas on the top in the equal greenhouse of radiation and add pipe;
Described cooling section comprises first slow cooling section, jet flow cooling room, second slow cooling section, the 3rd slow cooling section, the 4th slow cooling section successively along the furnace roller delivery direction, the top of each slow cooling section is respectively equipped with at least one group of water-cooled coil pipe, and every group of water-cooled coil pipe all has a water-in and a water outlet;
Be provided with recirculation blower, water-chilling plant, jet flow refrigerating unit, nitrogen adding apparatus in the described jet flow cooling room.
According to above-mentioned copper and the continuous roller net of copper alloy formula annealing furnace, it is characterized in that: be provided with the nitrogen jet apparatus between described first slow cooling section and second slow cooling section.
[0007]The beneficial effects of the utility model:
1, adopt the sectional type cooling structure, effectively reduce the temperature stress that produces in the process of cooling goods, help improving high-quality, high-alloying dimensional accuracy of products, the waste product phenomenon of stopping to anneal takes place.And can improve the production efficiency of annealing furnace to greatest extent.
2, facility investment is little, production operation is convenient, blowing out-blow-on is carried out furnace gas and replaced needed time weak point, and production cost is low, can satisfy continuous-clean annealing requirement of copper and copper alloy product preferably.
3, adopt the technology that adds network chain at the bottom of the roller, in the annealed process, do not had friction between goods and the network chain, do not had the goods scratch that occurs on the stove at the bottom of the conventional roller.Be applicable to the clean annealing of red copper, brass, bronze, copper-nickel alloy compo pipe bar.
4, whole annealing process is to carry out under the protection of nitrogen or nitrogen-hydrogen gas mixture, and quality evenly end to end, cleaning surfaces, nothing scratch for the annealing goods, annealing back goods non-oxidation, light, keeps the metal true qualities.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Be elaborated below in conjunction with the structure and the annealing process of accompanying drawing to the utility model copper and copper alloy continuous roller bottom type annealing furnace.
The continuous roller net of a kind of copper and copper alloy formula annealing furnace, comprise support frame, continuous roller net formula transporting mechanism and electric control system, be disposed with material loading section 1, preheating section 2, heating zone 3, first slow cooling section 4, jet flow cooling room 5, second slow cooling section 6, the 3rd slow cooling section 7, the 4th slow cooling section 8, discharging section 9 at support frame upper edge delivery direction.
Roller net formula transporting mechanism is made up of the furnace roller 17, contact roller 36, guide deflection sheave 10 and the network chain 11 that are arranged on the support frame continuously.
Be respectively arranged with choke sealing curtain 16,23,33 in the import of preheating section 2, the outlet of heating zone 3 and the outlet of the 4th slow cooling section 8.The maximum operation (service) temperature of choke sealing curtain can reach 1100 ℃, can effectively reduce heat radiation loss and furnace gas consumption.
Be respectively equipped with import, outlet gas skirt 13,38 at opening for feed 2 and discharge port 8, import, outlet smoke exhaust pipe 14,37.
Be respectively arranged with nitrogen jet apparatus 15,32 in the import of preheating section 2, the outlet of the 4th slow cooling section 8.The nitrogen jet apparatus comprises nitrogen inlet pipe and jet pipe; The high speed stream of nitrogen gas of nitrogen jet apparatus ejection forms air curtain one at opening for feed, discharge port, to keep furnace pressure, stops extraneous air to enter in the stove.
Be respectively arranged with gas skirt 13,35 and smoke exhaust pipe 14,34 in the import of preheating section 2, the outlet of the 4th slow cooling section 8, be used to collect and discharge flue gas (volatilization of copper material surfaces externally and internally, cracked lubricating oil), nitrogen and the hydrogen of overflowing in the stove.
The top of furnace roller 17 is provided with electrothermal radiation tube 20 in the described heating zone; Heating zone comprises 18 two parts in convective heating chamber and the equal greenhouse of radiation, indoor heating one district, heating two districts, heating three districts, heating four districts of being provided with successively of convective heating, be provided with strong convection recirculation blower 19 and director (playing effect) in each heating zone, and be provided with nitrogen-hydrogen mixed gas adding pipe 18 at each group recirculation blower place to the circulating current guiding.Be provided with nitrogen-hydrogen mixed gas on the top in the equal greenhouse 21 of radiation and add pipe 22.The adding of nitrogen-hydrogen mixed gas can guarantee furnace atmosphere full and uniform, stable circulation under low furnace pressure state, guarantees the atmosphere stability under temperature uniformity and low furnace pressure, the strong convection state.
At at least one group of water-cooled coil pipe 33 of the top of first slow cooling section 4, second slow cooling section 6, the 3rd slow cooling section 7, the 4th slow cooling section 8 difference, as efficient heat exchanger.Heat exchanger is the copper pipe aluminum fin structure, and heat exchange area surpasses 400m
, have huge heat-exchange capacity.Every group of water-cooled coil pipe all has a water-in 31 and a water outlet 32, and cooling water flow is independently controlled.The side wall of cooling section adopts double-deck water jacket structure, and distribution labyrinth type water conservancy diversion stiffening web in each water jacket makes water coolant by the labyrinth type path flows, guarantees good heat friendship control effect; Each water jacket is provided with inlet tube and outlet tube and respective valves, and cooling water flow is independent adjustable, and backwater is by the discharging of header tank open circuit, but Zhi Jie Guan Neiliao flow of cooling water operating mode.Level is passed bottom U type water jacket at the bottom of the live roll, and on the water jacket box bilateral wall, sealing is reliable by bearing fixing.The purpose of slow cooling section is to avoid abnormity, thin-wall copper pipe to produce distortion when chilling.Between the 3rd slow cooling section 7 and the 4th slow cooling section 8, be provided with the nitrogen jet apparatus,, stop extraneous air to enter in the stove to keep furnace pressure.
Jet flow cooling room 5 by blower fan, water-chilling plant (being the tubular type water cooling heat exchanger to be set) at the air inlet place, on jet set of nozzles 30, jet that set of nozzles forms 28 down, nitrogen adding apparatus 24, stove inner blower bleeding point 27,29 form.Jet flow cooling room 5 is steel plate, shaped steel seal welding structural part, and the two side is double-deck water wall structure, and interior cloth labyrinth type is strengthened fuisw rib, makes cooling jacket internal cooling water by the labyrinth type path flows, guarantees good heat exchange effect.Water-chilling plant is provided with inlet tube and outlet tube and respective valves.Strong recirculation blower adopts variable frequency control, can be according to establishing the border operating mode, and step-less adjustment strong convection speed of circulation reaches best cooling performance.Interchanger is installed in strong convection recirculation blower air suction inlet, is copper pipe, aluminium fin structure, and heat exchange area surpasses 400m
Circulation air path one end connects with strong recirculation blower, and an end connects with the upper and lower winding-up inlet mouth of cooling room.Air quantity, blast variable valve are set, guarantee that air quantity all distributes and cool off stablizing of indoor air flow.
After jet flow cooling room 5 interior stream of nitrogen gas and the workpiece heat exchange, by stove inner blower bleeding point 29 suction blower fan heat exchanger cooling, enter recirculation blower blast inlet 25, by recirculation blower air outlet 26, circulation air path and upper and lower winding-up set of nozzles 28,30, evenly to the workpiece ejection, form circulation from the workpiece upper and lower.The high speed cooling draught reaches the effect of rapidly, evenly cooling off workpiece.）
Claims (1)
1. copper and the continuous roller net of copper alloy formula annealing furnace comprise support frame, transporting mechanism and electric control system, and delivery direction is disposed with material loading section, preheating section, heating zone, cooling section, discharging section in the support frame upper edge, it is characterized in that:
Described transporting mechanism is continuous roller net formula transporting mechanism, is made up of the furnace roller, contact roller, guide deflection sheave and the network chain that are arranged on the support frame;
The outlet of the import of described preheating section, the outlet of heating zone and cooling section is respectively arranged with the choke sealing curtain;
The import of described preheating section, the outlet of cooling section are respectively arranged with the nitrogen jet apparatus;
The import of described preheating section, the outlet of cooling section are respectively arranged with gas skirt and smoke exhaust pipe;
The top of furnace roller is provided with electrothermal radiation tube in the described heating zone; Described heating zone is divided into convective heating chamber and the equal greenhouse of radiation; At least one group of strong convection recirculation blower and director are set in the convective heating chamber, and are provided with nitrogen-hydrogen mixed gas adding pipe at each group recirculation blower place; Be provided with nitrogen-hydrogen mixed gas on the top in the equal greenhouse of radiation and add pipe;
Described cooling section comprises first slow cooling section, jet flow cooling room, second slow cooling section, the 3rd slow cooling section, the 4th slow cooling section successively along the furnace roller delivery direction, the top of each slow cooling section is respectively equipped with at least one group of water-cooled coil pipe, and every group of water-cooled coil pipe all has a water-in and a water outlet;
Be provided with recirculation blower, water-chilling plant, jet flow refrigerating unit, nitrogen adding apparatus in the described jet flow cooling room.
2.The continuous roller net of copper and copper alloy formula annealing furnace is characterized in that: be provided with the nitrogen jet apparatus between described first slow cooling section and second slow cooling section according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200952800U CN202047121U (en) | 2011-04-02 | 2011-04-02 | Copper and copper alloy continuous rolling net type annealing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200952800U CN202047121U (en) | 2011-04-02 | 2011-04-02 | Copper and copper alloy continuous rolling net type annealing furnace |
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| CN202047121U true CN202047121U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200952800U Expired - Fee Related CN202047121U (en) | 2011-04-02 | 2011-04-02 | Copper and copper alloy continuous rolling net type annealing furnace |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703675A (en) * | 2012-06-27 | 2012-10-03 | 艾伯纳工业炉(太仓)有限公司 | Horizontal roller hearth furnace for heat treatment of aluminum plates |
| CN103911502A (en) * | 2014-04-21 | 2014-07-09 | 苏州乔家炉业有限公司 | Continuous roller-hearth type furnace |
| CN105177272A (en) * | 2015-10-24 | 2015-12-23 | 本钢不锈钢冷轧丹东有限责任公司 | Horizontal annealing furnace heating section structure |
| CN108588374A (en) * | 2018-02-06 | 2018-09-28 | 冷水江天宝实业有限公司 | A kind of continuous heat treating furnace and its sealing device and method |
| CN112210730A (en) * | 2020-09-27 | 2021-01-12 | 绵阳市优泰精工科技有限公司 | Heat treatment method of rare earth alloy material |
| CN113654397A (en) * | 2021-08-18 | 2021-11-16 | 江苏隆达超合金股份有限公司 | Method for improving cleanliness of copper alloy seamless finned tube |
| CN114413620A (en) * | 2022-02-09 | 2022-04-29 | 浙江元集新材料有限公司 | High-frequency high-speed copper clad laminate copper foil anti-oxidation device and process based on nitrogen air knife |
-
2011
- 2011-04-02 CN CN2011200952800U patent/CN202047121U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703675A (en) * | 2012-06-27 | 2012-10-03 | 艾伯纳工业炉(太仓)有限公司 | Horizontal roller hearth furnace for heat treatment of aluminum plates |
| CN103911502A (en) * | 2014-04-21 | 2014-07-09 | 苏州乔家炉业有限公司 | Continuous roller-hearth type furnace |
| CN105177272A (en) * | 2015-10-24 | 2015-12-23 | 本钢不锈钢冷轧丹东有限责任公司 | Horizontal annealing furnace heating section structure |
| CN108588374A (en) * | 2018-02-06 | 2018-09-28 | 冷水江天宝实业有限公司 | A kind of continuous heat treating furnace and its sealing device and method |
| CN112210730A (en) * | 2020-09-27 | 2021-01-12 | 绵阳市优泰精工科技有限公司 | Heat treatment method of rare earth alloy material |
| CN113654397A (en) * | 2021-08-18 | 2021-11-16 | 江苏隆达超合金股份有限公司 | Method for improving cleanliness of copper alloy seamless finned tube |
| CN114413620A (en) * | 2022-02-09 | 2022-04-29 | 浙江元集新材料有限公司 | High-frequency high-speed copper clad laminate copper foil anti-oxidation device and process based on nitrogen air knife |
| CN114413620B (en) * | 2022-02-09 | 2024-02-09 | 浙江元集新材料有限公司 | High-frequency high-speed copper-clad plate copper foil oxidation prevention device and process based on nitrogen air knife |
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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: 20111123 Termination date: 20140402 |