CN102410744B - Waste heat comprehensive utilization system in aluminum profile production line - Google Patents

Waste heat comprehensive utilization system in aluminum profile production line Download PDF

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CN102410744B
CN102410744B CN2011103806872A CN201110380687A CN102410744B CN 102410744 B CN102410744 B CN 102410744B CN 2011103806872 A CN2011103806872 A CN 2011103806872A CN 201110380687 A CN201110380687 A CN 201110380687A CN 102410744 B CN102410744 B CN 102410744B
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furnace
waste heat
flue gas
production line
valve
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CN102410744A (en
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谭连元
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FOSHAN TONGRUN THERMAL ENERGY TECHNOLOGY CO LTD
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FOSHAN TONGRUN THERMAL ENERGY TECHNOLOGY CO LTD
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention discloses a waste heat comprehensive utilization system in an aluminum profile production line. A flue gas convey network formed by a flue gas exhaust pipeline, a flue gas deliver pipeline, a flue gas convey pipeline, a flue gas exhaust valve, a flue gas convey valve, a safety valve, a heat exchanger, an air feeder, and a flue gas deliver valve is used to communicate a casting furnace, an aluminium ingot preheating chamber, a homogenate furnace, a copper bar heating furnace, an aging furnace, a curing furnace, and a drying furnace in the aluminum profile production line, so as to form the waste heat comprehensive utilization system. By using the system, waste heat in the high-temperature flue gas discharged by upstream high-temperature furnaces in the aluminum profile production line is allocated in downstream low-temperature furnaces, and the waste heat of each furnace can be made the best of by the downstream furnaces. After adopting the system, fuel gas quantity required by producing a ton of aluminum profile is reduced from present 250 cubic meters to 130 cubic meters, saving nearly a half; besides, the fuel gas consumption is reduced and discharge capacity of various contaminating gases is also reduced; and the system can change high-temperature flue gas into low-temperature flue gas to discharge, and reduce the cost of a flue gas dust removal system.

Description

A kind of Waste heat comprehensive utilization system in aluminum profile production line
Technical field
The present invention relates to a kind of bootstrap system, in particular a kind of Waste heat comprehensive utilization system in aluminum profile production line.
Background technology
Production equipment on the existing aluminium section bar production line such as casting furnace, homogeneous furnace, aging furnace etc., its high-temperature flue gas that produces in process of production all are directly or after dust pelletizing system is processed to discharge.The temperature of the high-temperature flue gas that casting furnace produces reaches 800-1000 ℃, and the temperature of the high-temperature flue gas of homogeneous furnace discharging reaches about 600 ℃, and its temperature of high-temperature flue gas of aging furnace discharging also can reach 200 ℃.50% heat has nearly been taken away on the production line in the discharging of this high-temperature flue gas on the one hand, has caused a large amount of wastes of combustion gas, is unfavorable for the reduction of production cost; On the other hand, high-temperature flue gas directly discharges, and with a large amount of pernicious gases, is unfavorable for environmental protection in the flue gas, discharges after dedusting, and high-temperature flue gas is very high to the requirement of dust pelletizing system, and the construction cost of dust pelletizing system is very expensive.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of Waste heat comprehensive utilization system in aluminum profile production line, the aluminium section bar production line high-temperature flue gas directly discharges the technical problem that the wasting of resources is huge, environmental protection is of a high price that causes in the above-mentioned prior art to solve.
Technical scheme of the present invention is as follows:
A kind of Waste heat comprehensive utilization system in aluminum profile production line, comprise casting furnace, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven, smoke discharging pipe, send smoke pipeline, tobacco transmission pipe, exhaust smoke valve, defeated cigarette valve, safety valve, heat exchanger, pressure fan and send the cigarette valve, be provided with smoke discharging pipe at the outlet flue of casting furnace, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven; The mouth that advances at aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven is provided with and send smoke pipeline; The smoke discharging pipe of the high temperature furnace in described each stove and low temperature oven send smoke pipeline to pass through described tobacco transmission pipe to be communicated with; Described exhaust smoke valve is arranged on the exhaust opening place of smoke discharging pipe; Described defeated cigarette valve and safety valve are arranged on the tobacco transmission pipe; Described pressure fan and send the cigarette valve to be arranged on described sending on the smoke pipeline, its setting position is followed successively by pressure fan, send the cigarette valve according to air supply direction.
Described Waste heat comprehensive utilization system in aluminum profile production line wherein, also comprises heat exchanger, and described heat exchanger is arranged on sending on the smoke pipeline of described each stove.
Described Waste heat comprehensive utilization system in aluminum profile production line wherein, also comprises water tank, and the smoke discharging pipe of described drying oven is inserted in the described water tank, is provided with heat exchanger on the smoke discharging pipe of described drying oven.
Described Waste heat comprehensive utilization system in aluminum profile production line, wherein, the quantity of described casting furnace is at least one, the quantity of described aluminium ingot preheating chamber is at least one, the quantity of described homogeneous furnace is at least one, and the quantity of described aluminum-bar heating furnace is at least one, and the quantity of described aging furnace is at least one, the quantity of described curing oven is at least one, and the quantity of described drying oven is at least one.
Described Waste heat comprehensive utilization system in aluminum profile production line, wherein, also comprise monitoring system, described monitoring system comprises central processing unit, data monitoring device and regulation device, described data monitoring device and regulation device are arranged on each body of heater in the described Waste heat comprehensive utilization system in aluminum profile production line, and described data monitoring device and regulation device electrically connect with central processing unit respectively.
Described Waste heat comprehensive utilization system in aluminum profile production line, wherein, described supervising device comprises pressure monitor device and temperature monitor.
Described Waste heat comprehensive utilization system in aluminum profile production line, wherein, described regulation device comprises exhaust smoke valve, defeated cigarette valve, safety valve, heat exchanger, pressure fan and send the cigarette valve.
The present invention by utilize smoke discharging pipe, send smoke pipeline, tobacco transmission pipe, exhaust smoke valve, defeated cigarette valve, safety valve, heat exchanger, pressure fan and the flue gas transport net that send the cigarette valve to form be communicated with the composition Waste heat comprehensive utilization system in aluminum profile production line with the casting furnace on the aluminium section bar production line, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven and drying oven.Waste heat in the high-temperature flue gas that this system can discharge the high temperature furnace of the upstream on the aluminium section bar production line is assigned in each low temperature oven of downstream, and the waste heat of each stove can both be taken full advantage of by the downstream stove.This system will produce now 250 cubic metres required gas quantity of aluminium section bar per ton and be reduced to 130 cubic metres of combustion gas of per ton need, and energy-conservation nearly 50%.And, when reducing gas consumption, also reduced the discharge capacity of various dusty gas.The low-temperature flue gas that becomes of high-temperature flue gas discharges in this system, has equally also reduced the cost of flue gas dust collecting system.
Description of drawings
Fig. 1 is the structural representation of Waste heat comprehensive utilization system in aluminum profile production line among the present invention;
Fig. 2 is the structural representation of monitoring system in the Waste heat comprehensive utilization system in aluminum profile production line among the present invention;
Fig. 3 is Waste heat comprehensive utilization system in aluminum profile production line workflow diagram among the present invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.
The structural representation of Waste heat comprehensive utilization system in aluminum profile production line among the present invention as described in Figure 1, this Waste heat comprehensive utilization system in aluminum profile production line comprise casting furnace 1, aluminium ingot preheating chamber 2, homogeneous furnace 3, aluminum-bar heating furnace 4, aging furnace 5, curing oven 6, drying oven 7, smoke discharging pipe 8, send smoke pipeline 9, tobacco transmission pipe 10, exhaust smoke valve 11, defeated cigarette valve 12, safety valve 13, heat exchanger 14, pressure fan 15 and send cigarette valve 16.Among casting furnace 1, aluminium ingot preheating chamber 2, homogeneous furnace 3, aluminum-bar heating furnace 4, aging furnace 5, curing oven 6 and drying oven 7, except 1 of casting furnace is provided with the smoke discharging pipe 8, all the other each stoves all are provided with accordingly smoke discharging pipe 8 and send smoke pipeline 9.Sending between the smoke pipeline 9 of the smoke discharging pipe 8 of upstream stove and its adjacent downstream stove is communicated with by tobacco transmission pipe 10, be casting furnace 1, homogeneous furnace 3 and aging furnace 5 smoke discharging pipe 8 separately with aluminium ingot preheating chamber 2, aluminum-bar heating furnace 4 and curing oven 6 separately send adjacent connection the between the smoke pipeline 9, aluminium ingot preheating chamber 2, aluminum-bar heating furnace 4 and curing oven 6 smoke discharging pipe 8 separately and homogeneous furnace 3, aging furnace 5 and drying oven 7 separately send adjacent connection the between the smoke pipeline 9, the smoke discharging pipe of drying oven 7 directly discharges, and perhaps connects flue gas dust collecting system.Exhaust opening place at each smoke discharging pipe 8 is provided with exhaust smoke valve 11, defeated cigarette valve 12 and safety valve 13 are according to native system control and distribute the needs of high-temperature flue gas to be arranged on each tobacco transmission pipe 10, heat exchanger 14, pressure fan 15 and send cigarette valve 16 to be arranged on each and send on the smoke pipeline, its setting position relation is with sending the cigarette direction to be followed successively by heat exchanger 14, pressure fan 15, sending cigarette valve 16.High-temperature flue gas is after heat exchanger 14 heat exchange, and the waste heat that wherein carries is sent in the stove of downstream by pressure fan 15.Wherein, flue-gas temperature in the casting furnace 1 is near 1050 ℃, flue-gas temperature in the aluminium ingot preheating chamber 2 can reach 500 ℃, flue-gas temperature in the homogeneous furnace 3 can reach 600 ℃, flue-gas temperature in the aluminum-bar heating furnace 4 is about 500 ℃, and the flue-gas temperature in aging furnace 5 and the curing oven 6 then only has about 200 ℃, and the flue-gas temperature of drying oven 7 is about 80 ℃, waste heat in the flue gas that drying oven is discharged is used for hot water after can utilizing heat exchanger to transform.
The structural representation of monitoring system in the Waste heat comprehensive utilization system in aluminum profile production line among the present invention as shown in Figure 2, also comprise a monitoring system in the Waste heat comprehensive utilization system in aluminum profile production line, in order to detect the distribution of the temperature and pressure state in each stove in the Waste heat comprehensive utilization system in aluminum profile production line and control high temperature cigarette.This detection system comprises central processing unit 17, casting furnace data detection device 18, casting furnace regulation device 19, aluminium ingot preheating chamber data monitoring device 20, aluminium ingot preheating chamber regulation device 21, homogeneous furnace data monitoring device 22, homogeneous furnace regulation device 23, aluminum-bar heating furnace data monitoring device 24, aluminum-bar heating furnace regulation device 25, aging furnace data monitoring device 26, aging furnace regulation device 27, curing oven data detection device 28, curing oven regulation device 29, drying oven data monitoring device 20 and drying oven regulation device 31.Above-mentioned data monitoring device just exists on existing aluminium section bar production line, such as pressure monitor, temperature monitoring (not shown) etc., is installed on the aluminium section bar production line in each stove.Above-mentioned each regulation device is the exhaust smoke valve 11 shown in Fig. 1, defeated cigarette valve 12 in the present invention, send cigarette valve 16, safety valve 13, heat exchanger 14, pressure fan 15 etc., after data monitoring device monitors data in each stove, data-signal is sent to central processing unit 17, central processing unit 17 judges and sends operational order to each regulation device according to data-signal, regulate the distribution of high temperature cigarette by the switch of controlling each regulation device, so that the data in each stove all are in normal condition on the production line.
As shown in Figure 3, Waste heat comprehensive utilization system in aluminum profile production line workflow diagram among the present invention, this Waste heat comprehensive utilization system in aluminum profile production line carry out the distribution utilization of waste heat under the control of its monitoring system.Monitoring system utilizes its regulation device to control the switch of each valve in this waste heat comprehensive utilization system by the data in each stove stove on the aluminium section bar production line are carried out monitoring analysis according to analysis result, thereby carries out the distribution of waste heat.Its basic procedure is as follows: 1, discharge from casting furnace near about 1000 ℃ high-temperature flue gas, can pass through aluminum-bar heating furnace and curing oven for aluminium ingot preheating chamber, monitoring system.Data analysis in aluminium ingot preheating chamber, aluminum-bar heating furnace and the curing oven determines whether and need to advance cigarette.If do not need into cigarette, high-temperature flue gas is then directly discharged from casting furnace.2, the high-temperature flue gas about 500 ℃ in the aluminium ingot preheating chamber can be for homogeneous furnace, aging furnace and drying oven, and monitoring system determines whether and need to advance cigarette by to the data analysis in homogeneous furnace, aging furnace and the drying oven.If do not need into cigarette, high-temperature flue gas is then directly discharged from aluminum ingot heating furnace.3, the temperature of the high-temperature flue gas in the homogeneous furnace can reach 600 ℃, can be for aluminum-bar heating furnace and curing oven, and monitoring system determines whether and need to advance cigarette by to the data analysis in aluminum-bar heating furnace and the curing oven.If do not need into cigarette, high-temperature flue gas is then directly discharged from the homogeneous furnace stove.4, the high-temperature flue gas in the aluminum-bar heating furnace also can reach 500 ℃, after flue gas flows out, can be for aging furnace and drying oven, and monitoring system judges by to the data analysis in aging furnace and the drying oven whether it needs into cigarette.If do not need, high-temperature flue gas is then directly discharged from aluminum-bar heating furnace.5, the temperature of the high-temperature flue gas in the aging furnace is about 200 ℃, can directly discharge or directly supply with curing oven and use.6, the high-temperature flue gas in the curing oven also only has about 200 ℃, can directly discharge or directly supply with drying oven and use.7, last, the flue gas in the drying oven is then directly discharged or is discharged after dust pelletizing system is processed.
As can be seen from the above-described embodiment, Waste heat comprehensive utilization system in aluminum profile production line provided by the invention, under the control of monitoring system, by functors such as pressure fan, valve, heat exchangers, waste heat in the high-temperature flue gas that the upstream fire grate on the aluminium section bar production line can be gone out is assigned in each stove of downstream, and the waste heat of each stove can both be taken full advantage of by the downstream stove.By calculating, this system can be reduced to 130 cubic metres of combustion gas of per ton need by 250 cubic metres the gas quantity that existing production aluminium section bar per ton is required, and energy-conservation nearly 50%.And, when reducing gas consumption, also reduced the discharge capacity of various dusty gas.In addition, the low-temperature flue gas that becomes of high-temperature flue gas discharges in this system, has equally also reduced the cost of flue gas dust collecting system.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion, for example, the casting furnace in the native system, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven and drying oven, its quantity can be for more than two, smoke conveying duct in corresponding this system also is set to network structure, thereby this system also can build up a residual heat integrative and utilizes net.In addition, drying oven smoke discharging pipe can also an external water tank, a heat exchanger is set on the smoke discharging pipe, the waste heat of the flue gas of discharging by the heat exchanger converter is used for hot water.All these improvement and conversion all should belong to the protection domain of claims of the present invention.

Claims (6)

1. Waste heat comprehensive utilization system in aluminum profile production line, it is characterized in that, comprise casting furnace, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven, smoke discharging pipe, send smoke pipeline, tobacco transmission pipe, exhaust smoke valve, defeated cigarette valve, safety valve, heat exchanger, pressure fan and send the cigarette valve, be provided with smoke discharging pipe at the outlet flue of casting furnace, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven; The mouth that advances at aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven is provided with and send smoke pipeline; Described casting furnace, homogeneous furnace and aging furnace smoke discharging pipe separately and aluminium ingot preheating chamber, aluminum-bar heating furnace and curing oven separately send adjacent connection the between the smoke pipeline, described aluminium ingot preheating chamber, aluminum-bar heating furnace and curing oven smoke discharging pipe separately and homogeneous furnace, aging furnace and drying oven separately send adjacent connection the between the smoke pipeline, the smoke discharging pipe of drying oven directly discharges; The exhaust opening place of the smoke discharging pipe of described casting furnace, aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, drying oven is provided with exhaust smoke valve; Be equipped with defeated cigarette valve and safety valve on each tobacco transmission pipe of described Waste heat comprehensive utilization system in aluminum profile production line; Described aluminium ingot preheating chamber, homogeneous furnace, aluminum-bar heating furnace, aging furnace, curing oven, sending of drying oven are provided with heat exchanger, pressure fan and send the cigarette valve on the smoke pipeline, heat exchanger, pressure fan and send the setting position of cigarette valve to be followed successively by heat exchanger, pressure fan, to send the cigarette valve according to air supply direction.
2. Waste heat comprehensive utilization system in aluminum profile production line according to claim 1 is characterized in that, also comprises water tank, and the smoke discharging pipe of described drying oven is inserted in the described water tank, is provided with heat exchanger on the smoke discharging pipe of described drying oven.
3. Waste heat comprehensive utilization system in aluminum profile production line according to claim 1 and 2, it is characterized in that, the quantity of described casting furnace is at least one, the quantity of described aluminium ingot preheating chamber is at least one, the quantity of described homogeneous furnace is at least one, and the quantity of described aluminum-bar heating furnace is at least one, and the quantity of described aging furnace is at least one, the quantity of described curing oven is at least one, and the quantity of described drying oven is at least one.
4. Waste heat comprehensive utilization system in aluminum profile production line according to claim 1, it is characterized in that, also comprise monitoring system, described monitoring system comprises central processing unit, data monitoring device and regulation device, described data monitoring device and regulation device are arranged on each body of heater in the described Waste heat comprehensive utilization system in aluminum profile production line, and described data monitoring device and regulation device electrically connect with central processing unit respectively.
5. Waste heat comprehensive utilization system in aluminum profile production line according to claim 4 is characterized in that, described data monitoring device comprises pressure monitor device and temperature monitor.
6. according to claim 4 or 5 described Waste heat comprehensive utilization system in aluminum profile production lines, it is characterized in that, described regulation device comprises exhaust smoke valve, defeated cigarette valve, safety valve, heat exchanger, pressure fan and send the cigarette valve.
CN2011103806872A 2011-11-25 2011-11-25 Waste heat comprehensive utilization system in aluminum profile production line Active CN102410744B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398592B (en) * 2013-08-19 2015-04-29 佛山市广旭节能自动化科技有限公司 Heat recovery system of aluminum homogeneous furnace
CN103453778B (en) * 2013-09-03 2015-04-01 南通曼特威金属材料有限公司 Waste gas drying system for smelting furnace
CN110343834A (en) * 2019-08-15 2019-10-18 沈阳东大三建工业炉制造有限公司 A kind of 6 heat-treatment furnace flue gas waste heat utilization device of aluminum alloy T and method
CN113432440A (en) * 2021-05-25 2021-09-24 苏州鼎佳炉窑科技有限公司 Waste heat recovery system of aluminum alloy casting workshop

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Publication number Priority date Publication date Assignee Title
CN201191140Y (en) * 2007-11-09 2009-02-04 山东华恒矿业有限公司 Waste heat utilization system for novel gangue kiln
CN201857406U (en) * 2010-10-14 2011-06-08 佛山市通润热能科技有限公司 Preheating system for homogenizing furnace and aging furnace
CN102173444A (en) * 2011-02-24 2011-09-07 山东三丰集团股份有限公司 System and method for comprehensive utilization of tail gas of aluminium sulphate reaction kettles
CN202361819U (en) * 2011-11-25 2012-08-01 佛山市通润热能科技有限公司 Comprehensive waste heat utilization system on aluminum section production line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201191140Y (en) * 2007-11-09 2009-02-04 山东华恒矿业有限公司 Waste heat utilization system for novel gangue kiln
CN201857406U (en) * 2010-10-14 2011-06-08 佛山市通润热能科技有限公司 Preheating system for homogenizing furnace and aging furnace
CN102173444A (en) * 2011-02-24 2011-09-07 山东三丰集团股份有限公司 System and method for comprehensive utilization of tail gas of aluminium sulphate reaction kettles
CN202361819U (en) * 2011-11-25 2012-08-01 佛山市通润热能科技有限公司 Comprehensive waste heat utilization system on aluminum section production line

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Denomination of invention: Waste heat comprehensive utilization system in aluminum profile production line

Effective date of registration: 20200629

Granted publication date: 20131016

Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd.

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Address after: 528100 the third of No.10 (F1) in plot B of central science and Technology Industrial Zone, Leping Town, Sanshui District, Foshan City, Guangdong Province

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Address before: 528137 No.5, Jiye Avenue, central science and Technology Industrial Park, Leping Town, Sanshui District, Foshan City, Guangdong Province

Patentee before: FOSHAN TONGRUN THERMAL ENERGY TECHNOLOGY Co.,Ltd.