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CN107314666B - An energy-saving gas-fired cupola operating device and method - Google Patents

An energy-saving gas-fired cupola operating device and method Download PDF

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Publication number
CN107314666B
CN107314666B CN201610619587.3A CN201610619587A CN107314666B CN 107314666 B CN107314666 B CN 107314666B CN 201610619587 A CN201610619587 A CN 201610619587A CN 107314666 B CN107314666 B CN 107314666B
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China
Prior art keywords
cold
hot
sealing valve
gas
group
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CN201610619587.3A
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Chinese (zh)
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CN107314666A (en
Inventor
崔永章
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Wuxi Jinwanquan Stainless Steel Co ltd
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Nanjing Liu Quanxin Energy Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/22—Arrangements of heat-exchange apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/26—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F27D17/12—Arrangements for using waste heat using heat storage
    • F27D17/13—Arrangements for using waste heat using heat storage using regenerative heat exchangers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Air Supply (AREA)

Abstract

The present invention provides a kind of economical gas furnace cupola running gear and method, including gas-fired cupola, it is characterized in that: being provided with fusing preheating section in the middle part of the gas-fired cupola, the upper end of the gas-fired cupola is provided with feeding seal valve, the lower end of the gas-fired cupola is connected to burner, the burner connection fuel gas conduit and high temperature air pipe, the top of the gas-fired cupola connects high-temperature flue gas discharge pipe, oxidant injection hole groups are provided on the high-temperature flue gas discharge pipe, the high-temperature flue gas discharge pipe connects high-temperature thermal storage body group pair by hot end control valve group with high temperature air Guan Jun, the high-temperature thermal storage body group connects fume pipe and cold air pipe to by cold end control valve group.The present invention can guarantee that baker, continuous operation and blowing out operation reach exhaust gas temperature at 150 DEG C ± 20 DEG C, reduces the gas consumption in the stages such as baker, continuous operation, blowing out operation, reduces the heat that flue gas emission is taken away to greatest extent.

Description

A kind of economical gas furnace cupola running gear and method
Technical field
The present invention relates to gas-fired cupola fields, in particular, be related to a kind of economical gas furnace cupola running gear and Method.
Background technique
As environmental protection pressure improves, for cast iron, cast steel < 5t/h coke furnace cupola, will be soaring by electric furnace and combustion gas Furnace is substituted.
The power consumption of furnace melting cast iron, cast steel is mostly in 600-750kwh/t at present, it is therefore desirable to be equipped with larger, expensive Transformation facility, and undertake and be lost compared with high transformer, cause most foundry enterprise power consumption costs using paddy valence electricity from 0.35 yuan/ Kwh at least increases 0.1-0.15 member/kwh.The operation cost of enterprise is not only improved, but also causes huge waste of energy.Therefore Gas-fired cupola will be paid attention to as one of main selection equipment.
Combustion gas cokeless furnace cupola is the furnace cupola with natural gas, coke-stove gas, liquefied gas etc. for fuel, belongs to the world today The state-of-the-art technology of cast iron smelting in range, it is soaring that the developed countries such as age in last century 60-70 America and Soviet Union of Great Britain and France successively carry out combustion gas The research and use of furnace, typical technology are United States Patent (USP) (patent No. US5224985).The nineties, due to coke scarcity, exploitation is burnt The substitute of charcoal, gradually have studied coke and natural gas share, the furnace cupola of net gas, make the technology in European Union, the Middle East, beauty It is used in a certain ranges such as state, India, Japan, South Korea.
Chinese invention patent (application number: 201310553218.5) discloses a kind of gas-fired cupola waste heat of rock wool production The method of cascade utilization is 1400-1800 DEG C of flue-gas temperature, strong using jet flow, convection current using the high-temperature flue gas after fusing section The injection radiation recuperator change, fired again is preheated, and so that combustion air temperature is reached 500-900 DEG C, is realized the ladder of natural gas Grade energy utilization.
Exist although gas-fired cupola substantially reduces the discharge of carbon monoxide, particulate matter etc., when it runs a large amount of useless Heat is mainly manifested in three aspects: baker stage gas consumption, melts latter stage gas consumption, contains 1-5%CO in smoke evacuation.The initial stage of baker needs Exit gas temperature is continuously improved and improves in-furnace temperature, is to overheat Ceramic Balls to baker latter stage, exhaust gas temperature needs reach To 1000 DEG C or more, basic baker gas consumption reaches 600m3/ time.Such as with day fusing 8 hours, then ton converts 75m3, and natural gas is molten Change only needs 50-80m3, therefore be not suitable for intermittent duty user, it is most preferably that continuous, long age furnace is just suitable.Latter stage is melted, with The fusing progress bed of material is thinning, and exhaust gas temperature increases, and finishes until melting, the time about 1 hour, also results in the wave of a large amount of natural gas Take.For the oxidation for preventing fusing metal, CO content in smoke generally in 1-5%, accounts for the 3-10% of natural gas heat, there are huge Waste.
The present invention is on the basis of comprehensive advanced gas-fired cupola both at home and abroad, for widely used currently on the market It has a rest and runs furnace cupola, realize the gas-fired cupola of interval melting and melting latter stage and melting mid-term same consumption energy, further genralrlization Natural gas further decreases casting industry energy consumption and pollutant emission in the application range of casting industry.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of economical gas furnace cupola running gear and method, maximum limits Degree reduces baker, fusing latter stage amount of consumed gas and the heat for recycling CO in smoke evacuation, reduces operating cost.
The present invention realizes goal of the invention using following technological means:
A kind of economical gas furnace cupola running gear, including gas-fired cupola, it is characterized in that: the gas-fired cupola Middle part is provided with fusing preheating section, and the upper end of the gas-fired cupola is provided with feeding seal valve, under the gas-fired cupola End connection burner, the burner connection fuel gas conduit and high temperature air pipe, the top of the gas-fired cupola connect high temperature cigarette Gas discharge pipe, oxidant injection hole groups are provided on the high-temperature flue gas discharge pipe, and the high-temperature flue gas discharge pipe and high temperature are empty Tracheae passes through hot end control valve group connection high-temperature thermal storage body group pair, and the high-temperature thermal storage body group connects to by cold end control valve group Cigarette receiving tracheae and cold air pipe；
The high-temperature thermal storage body group is to comprising heat storage group one and heat storage group two, the heat storage group one and heat storage group Two are made of muti-piece honeycomb ceramics heat storage respectively, and partition, the storage are provided between affiliated heat storage group one and heat storage group two The two sides of hot body group one are provided with cold end one and hot end two, and two both ends of heat storage group are provided with cold end two and hot end two, institute It states hot end one and hot end two and connects the hot end control valve group, the cold end one and cold end two connect the cold end control valve group.
It is further limited as to the technical program, the cold end control valve group includes that cold end seal valve one, cold end are close Seal valve two, cold end seal valve three, cold end seal valve four, pneumatic operated valve and partition, the cold end seal valve one, cold end seal valve three with The cold end seal valve two, cold end seal valve four are spaced on or off, and the partition is by the cold end control valve Group is divided into two individual cold end chambers.
It is further limited as to the technical program, the hot end control valve group includes that hot end seal valve one, hot end are close Seal valve two, hot end seal valve three, hot end seal valve four, pneumatic operated valve and partition, the hot end seal valve one, hot end seal valve three with The hot end seal valve two, hot end seal valve four are spaced on or off, and the partition is by the hot end control valve Group is divided into two individual hot end chambers.
It is further limited as to the technical program, the high-temperature flue gas discharge pipe includes round metal tube and thermal insulating material The bed of material.
It is further limited as to the technical program, the oxidant injection hole groups include doughnut, spray-hole and control Valve processed.
It is further limited as to the technical program, smoke evacuation thermocouple and CO sensor is provided in the fume pipe, Hearth thermocouple is provided in the gas-fired cupola, the smoke evacuation thermocouple, CO sensor and hearth thermocouple are all connected with control Device processed.
A kind of method of the economical gas furnace cupola running gear of claim 1, characterized in that include the following steps:
(1) baker initial operating stage, cold end seal valve two, cold end seal valve four, hot end seal valve two and hot end seal valve four It opens, and cold end seal valve one, cold end seal valve three, hot end seal valve one and hot end seal valve three are closed, air is through cold air Pipe, the cold end seal valve two of cold end control valve group, high-temperature thermal storage body group one cold end one enter in high-temperature thermal storage body group one, then The hot end seal valve four that hot end control valve group is entered through hot end one, enters high temperature air pipe, the combustion gas with fuel gas conduit outflow It burns into burner, the flue gas of generation enters in high-temperature flue gas discharge pipe through melting preheating section；Flue gas is from high temperature cigarette After the outflow of gas discharge pipe, cold end control valve is entered after hot end seal valve two, hot end two enter heat storage group, then through cold end two It enters back into fume pipe after the cold end seal valve four of group and discharges out of the furnace；
When discharge fume thermocouple measuring temperature be more than 150 DEG C after, controller control cold end seal valve two, cold end seal valve four, Hot end seal valve two and hot end seal valve four are closed, and cold end seal valve one, cold end seal valve three, hot end seal valve one and hot end Sealing valve three is opened, and flue gas is after the outflow of high-temperature flue gas discharge pipe, after hot end seal valve three, hot end one enter heat storage group, Fume pipe is entered back into after cold end one enters the cold end seal valve one of cold end control valve group again and is discharged out of the furnace, and heat storage group is inhaled The heat in flue gas is received, so that the temperature of fume pipe discharge flue gas reduces；Air is through cold air pipe, cold end control valve at this time The cold end seal valve three of group, cold end two flow through hot end two, the heat that air is absorbed by heat storage group after entering heat storage group It is heated, then enters high temperature air pipe after the hot end seal valve one of hot end control valve, the combustion gas with fuel gas conduit outflow enters Burner burns, after thermocouple measurement flue-gas temperature of discharging fume is more than 150 DEG C, controller control cold end seal valve two, cold Sealing valve four, hot end seal valve two and hot end seal valve four is held to open, and cold end seal valve one, cold end seal valve three, hot end are close It seals valve one and hot end seal valve three is closed, repeat the above process, controller controls in hot end control valve group and cold end control valve group Control valve alternately be in the state of turning on or off so that flue gas is alternately through high-temperature thermal storage body group one and high-temperature thermal storage body group Two, the temperature of the flue gas of control fume pipe discharge is no more than 150 DEG C；
(2) when hearth thermocouple measurement flue-gas temperature is more than 650 DEG C and CO sensor detects CO concentration > 500ppm, Open control valve, a certain amount of oxidant by doughnut, spray-hole be ejected into the CO in high-temperature flue gas discharge pipe and in flue gas into Row oxidation reaction generates carbon dioxide and releases heat, and flue-gas temperature further increases, and enters hot end control valve group；
(3) when hearth thermocouple measurement flue-gas temperature is more than 1200 DEG C, baker work is completed, and opens feeding seal valve 3 Intervals are carried out, realize continuous operation；
(4) when needing to carry out blowing out, close feeding seal valve, gradually proportionally reduced by controller cold air pipe and Fuel gas conduit supply, supply reaches the 1/3 of design discharge after about 30 minutes, no longer reduction cold air pipe and fuel gas conduit supply Amount, and combustion gas and volume of air ratio are controlled for 1:9.5-10.5, until the material until all melting preheating section all melts；
(5) when furnace outage time was less than 1 hour, maintaining fuel gas conduit supply is the 1/3 of design discharge, combustion gas and air body Product ratio control is in 1:10-12；
(6) when furnace outage time is small greater than 8, stop the supply of fuel gas conduit and air hose, end of run.
Compared with prior art, the advantages and positive effects of the present invention are: the present invention can guarantee baker, continuous operation and stop Furnace operation reaches exhaust gas temperature at 150 DEG C ± 20 DEG C, reduces the gas consumption in the stages such as baker, continuous operation, blowing out operation, The heat that flue gas emission is taken away is reduced to greatest extent, while CO in flue gas being fired again and discharges heat and further recycles, It realizes the utilization for maximizing gas thermal energy, further decreases the operating cost of gas-fired cupola, also further reduced pollutant The discharge of CO belongs to energy saving and environment friendly new invention technology.
Detailed description of the invention
Fig. 1 is system pie graph of the invention
Fig. 2 is the functional schematic of cold end control valve group operating status one of the invention
Fig. 3 is the functional schematic of cold end control valve group operating status two of the invention.
Fig. 4 is the functional schematic of hot end control valve group operating status one of the invention
Fig. 5 is the functional schematic of hot end control valve group operating status two of the invention.
Fig. 6 is oxidant injection hole groups structural schematic diagram of the invention
In figure, 1- gas-fired cupola, 2- melts preheating section, 3- feeding seal valve, 4- burner, the discharge of 5- high-temperature flue gas Pipe, 51- metal tube, 52- adiabator layer, 6- oxidant injection hole groups, 61- doughnut, 62- spray-hole, 63- control valve, 7- Oxidant, the hot end 8- control valve group, 811- hot end seal valve one, 812- hot end seal valve two, 813- hot end seal valve three, 814- Hot end seal valve four, 821- cold end seal valve one, 822- cold end seal valve two, 823- cold end seal valve three, 824- cold end seal Valve four, 83- pneumatic control valve one, 84- partition one, 86- pneumatic control valve two, 87- partition two, the hot end 85- chamber, 88- cold end Chamber, 9- high-temperature thermal storage body group pair, 91- high-temperature thermal storage body group one, 92- high-temperature thermal storage body group two, 911- cold end one, 921- cold end The hot end two, 912- one, the hot end 922- two, 10- cold end control valve group, 93- partition, 94- honeycomb heat accumulation body, 11- fume pipe, 12- Cold air pipe, 13- high temperature air pipe, 14- fuel gas conduit, 15- flue gas, 16- air, 18- hearth thermocouple.
Specific embodiment
Further be described in detail is made to the present invention with preferred embodiment with reference to the accompanying drawing.
Referring to Fig. 1-Fig. 6, the present invention includes gas-fired cupola 1, and the middle part of the gas-fired cupola 1 is provided with fusing preheating Section 2, the upper end of the gas-fired cupola 1 are provided with feeding seal valve 3, and the lower end of the gas-fired cupola 1 is connected to burner 4, The burner 4 connects fuel gas conduit 14 and high temperature air pipe 13, and the top of the gas-fired cupola 1 connects high-temperature flue gas discharge pipe 5, oxidant injection hole groups 6, the high-temperature flue gas discharge pipe 5 and high temperature air pipe are provided on the high-temperature flue gas discharge pipe 5 13 connect high-temperature thermal storage body group to 9 by hot end control valve group 8, and the high-temperature thermal storage body group passes through cold end control valve group to 9 10 connection fume pipes 11 and cold air pipe 12.
The high-temperature thermal storage body group includes heat storage group 1 and heat storage group 2 92, one 91 He of heat storage group to 9 Heat storage group 2 92 is made of muti-piece honeycomb ceramics heat storage respectively, is arranged between affiliated heat storage group 1 and heat storage group 2 92 There is partition 93, the two sides of the heat storage group 1 are provided with cold end 1 and hot end 1,2 92 liang of the heat storage group End is provided with cold end 2 921 and hot end 2 922, and the hot end 1 and hot end 2 922 connect the hot end control valve group 8, institute It states cold end 1 and cold end 2 921 connects the cold end control valve group 10.
The cold end control valve group 10 includes cold end seal valve 1, cold end seal valve 2 822, cold end seal valve three 823, cold end seal valve 4 824, pneumatic control valve 1 and partition 1, the cold end seal valve 1, cold end seal valve three 823 is on or off with the cold end seal valve 2 822, the interval of cold end seal valve 4 824, and the partition 1 will The cold end control valve group 10 is divided into two individual cold end chambers 88.
The hot end control valve group 8 include hot end seal valve 1, hot end seal valve 2 812, hot end seal valve 3 813, Hot end seal valve 4 814, pneumatic control valve 2 86 and partition 2 87, the hot end seal valve 1, hot end seal valve 3 813 On or off with the hot end seal valve 2 812, the interval of hot end seal valve 4 814, the partition 2 87 is by institute It states hot end control valve group 8 and is divided into two individual hot end chambers 85.
The high-temperature flue gas discharge pipe 5 includes round metal tube 51 and adiabator layer 52.
The oxidant injection hole groups 6 include doughnut 61, spray-hole 61 and control valve 63, and spray-hole 62 is to be uniformly distributed Circular hole, have two kinds of apertures, 62 Jet Penetration Depth of spray-hole respectively reaches at the 1/2 and 1/4 of 5 diameter d of high-temperature flue gas discharge pipe, Spray-hole 62 divides single arrangement or double arrangement；The oxidant 7 that spray-hole 62 sprays can be oxygen, air or high excess air The flue gas of coefficient.
It is provided with smoke evacuation thermocouple and CO sensor in the fume pipe 11, is provided with burner hearth in the gas-fired cupola 1 Thermocouple 18, the smoke evacuation thermocouple, CO sensor and hearth thermocouple 18 are all connected with controller.
A kind of operation method of economical gas furnace cupola, includes the following steps:
(1) baker initial operating stage, cold end seal valve 2 822, cold end seal valve 4 824, hot end seal valve 2 812 and hot end Sealing valve 4 814 is opened, and cold end seal valve 1, cold end seal valve 3 823, hot end seal valve 1 and hot end seal valve 3 813 close, and air 16 is through cold air pipe 12, the cold end seal valve 2 822 of cold end control valve group 10, high-temperature thermal storage body group 1 Cold end 1 enter in high-temperature thermal storage body group 1, then the hot end for entering hot end control valve group 8 through hot end 1 is close Valve 4 814 is sealed, high temperature air pipe 13 is entered, the combustion gas flowed out with fuel gas conduit 14 enters burner 4 and burns, the cigarette of generation Gas 15 enters in high-temperature flue gas discharge pipe 5 through melting preheating section 2；Flue gas 15 is after the outflow of high-temperature flue gas discharge pipe 5, through hot end After sealing valve 2 812, hot end 2 922 enter heat storage group 92, then enter through cold end 2 921 cold end of cold end control valve group 10 Fume pipe 11 is entered back into after sealing valve 4 824 and is discharged out of the furnace；
After thermocouple measuring temperature of discharging fume is more than 150 DEG C, controller controls cold end seal valve 2 822, cold end seal valve 4 824, hot end seal valve 2 812 and hot end seal valve 4 814 are closed, and cold end seal valve 1, cold end seal valve 3 823, Hot end seal valve 1 and hot end seal valve 3 813 are opened, and flue gas 15 is after the outflow of high-temperature flue gas discharge pipe 5, through hot end seal After valve 3 813, hot end 1 enter heat storage group 91, then enter through cold end 1 cold end seal of cold end control valve group 10 Fume pipe 11 is entered back into after valve 1 and is discharged out of the furnace, and heat storage group 91 absorbs the heat in flue gas 15, so that fume pipe The temperature of 11 discharge flue gases reduces；At this time air 16 through cold air pipe 12, cold end control valve group 10 cold end seal valve 3 823, Cold end 2 921, which enters after heat storage group 92, flows through hot end 2 922, added by the heat that air 16 is absorbed by heat storage group 92 Heat, then high temperature air pipe 13 is entered after the hot end seal valve 1 of hot end control valve 8, the combustion gas flowed out with fuel gas conduit 14 It burns into burner 4, after 15 temperature of thermocouple measurement flue gas of discharging fume is more than 150 DEG C, controller controls cold end seal Valve 2 822, cold end seal valve 4 824, hot end seal valve 2 812 and hot end seal valve 4 814 are opened, and cold end seal valve one 821, cold end seal valve 3 823, hot end seal valve 1 and hot end seal valve 3 813 are closed, and are repeated the above process, controller Control valve in control hot end control valve group 8 and cold end control valve group 10 is alternately in the state of turning on or off, so that flue gas 15 alternately through high-temperature thermal storage body group 1 and high-temperature thermal storage body group 2 92, and the temperature for controlling the flue gas that fume pipe 11 is discharged does not surpass Cross 150 DEG C；
(2) when hearth thermocouple 18 measures, 15 temperature of flue gas is more than 650 DEG C and CO sensor detects CO concentration > 500ppm When, control valve 63 is opened, a certain amount of oxidant 7 is ejected into high-temperature flue gas discharge pipe 5 by doughnut 61, spray-hole 62 and cigarette CO in gas 15 carries out oxidation reaction, generates carbon dioxide and releases heat, 15 temperature of flue gas further increases, and enters Hot end control valve group 8；
(3) when hearth thermocouple 18, which measures flue-gas temperature, is more than 1200 DEG C, baker work is completed, and opens feeding seal valve 3 carry out intervals, realize continuous operation；
(4) when needing to carry out blowing out, feeding seal valve 3 is closed, cold air pipe is gradually proportionally reduced by controller 12 and 14 supply of fuel gas conduit, supply reaches the 1/3 of design discharge after about 30 minutes, no longer reduction cold air pipe 12 and combustion gas 14 supply of pipe, and combustion gas and volume of air ratio are controlled for 1:9.5-10.5, until the material for all melting preheating section is whole Until fusing；
(5) when furnace outage time was less than 1 hour, maintaining 14 supply of fuel gas conduit is the 1/3 of design discharge, combustion gas and air Volume ratio is controlled in 1:10-12；
(6) when furnace outage time is small greater than 8, stop the supply of fuel gas conduit 14 and air hose 12, end of run.

Claims (7)

1.一种节能型燃气冲天炉运行装置，包括燃气冲天炉，其特征是：所述燃气冲天炉的中部设置有熔化预热段，所述燃气冲天炉的上端设置有进料密封阀，所述燃气冲天炉的下端连通燃烧器，所述燃烧器连接燃气管和高温空气管，所述燃气冲天炉的上部连接高温烟气排出管，所述高温烟气排出管上设置有氧化剂喷射孔组，所述高温烟气排出管和高温空气管均通过热端控制阀组连接高温蓄热体组对，所述高温蓄热体组对通过冷端控制阀组连接烟气管和冷空气管；1. An energy-saving gas-fired cupola operating device, comprising a gas-fired cupola, characterized in that: the middle of the gas-fired cupola is provided with a melting preheating section, and the upper end of the gas-fired cupola is provided with a feed sealing valve, so The lower end of the gas-fired cupola is connected to a burner, the burner is connected to a gas pipe and a high-temperature air pipe, the upper part of the gas-fired cupola is connected to a high-temperature flue gas discharge pipe, and an oxidant injection hole group is arranged on the high-temperature flue gas discharge pipe , the high temperature flue gas discharge pipe and the high temperature air pipe are both connected to the high temperature heat storage body group pair through the hot end control valve group, and the high temperature heat storage body group pair is connected to the flue gas pipe and the cold air pipe through the cold end control valve group; 所述高温蓄热体组对包含蓄热体组一和蓄热体组二，所述蓄热体组一和蓄热体组二分别由多块蜂窝体蓄热体组成，所属蓄热体组一和蓄热体组二之间设置有隔板，所述蓄热体组一的两侧设置有冷端一和热端二，所述蓄热体组二两端设置有冷端二和热端二，所述热端一和热端二连接所述热端控制阀组，所述冷端一和冷端二连接所述冷端控制阀组。The pair of high-temperature heat storage bodies includes a heat storage body set 1 and a heat storage body set 2, and the heat storage body set 1 and the heat storage body set 2 are respectively composed of a plurality of honeycomb body heat storage bodies, which belong to the heat storage body set. A partition is arranged between the first and the second heat storage body group, the two sides of the heat storage body group one are provided with a cold end one and a hot end two, and the two ends of the heat storage body group two are provided with a cold end two and a hot end The second end, the hot end 1 and the hot end 2 are connected to the hot end control valve group, and the cold end 1 and the cold end 2 are connected to the cold end control valve group. 2.根据权利要求1所述的节能型燃气冲天炉运行装置，其特征是：所述冷端控制阀组包括冷端密封阀一、冷端密封阀二、冷端密封阀三、冷端密封阀四、气动阀和隔板，所述冷端密封阀一、冷端密封阀三与所述冷端密封阀二、冷端密封阀四间隔处于开启或关闭状态，所述隔板将所述冷端控制阀组分割成两个单独的冷端腔室。2. The energy-saving gas-fired cupola operating device according to claim 1, wherein the cold-end control valve group comprises a cold-end sealing valve 1, a cold-end sealing valve 2, a cold-end sealing valve 3, a cold-end sealing valve The fourth valve, the pneumatic valve and the diaphragm, the cold end sealing valve 1, the cold end sealing valve 3 and the cold end sealing valve 2 and the cold end sealing valve 4 are in an open or closed state, and the diaphragm seals the The cold-end control valve block is divided into two separate cold-end chambers. 3.根据权利要求1所述的节能型燃气冲天炉运行装置，其特征是：所述热端控制阀组包括热端密封阀一、热端密封阀二、热端密封阀三、热端密封阀四、气动阀和隔板，所述热端密封阀一、热端密封阀三与所述热端密封阀二、热端密封阀四间隔处于开启或关闭状态，所述隔板将所述热端控制阀组分割成两个单独的热端腔室。3. The energy-saving gas-fired cupola operating device according to claim 1, wherein the hot-end control valve group comprises a hot-end sealing valve 1, a hot-end sealing valve 2, a hot-end sealing valve 3, a hot-end sealing valve Valve 4, pneumatic valve and partition, the hot-end sealing valve 1, hot-end sealing valve 3 and the hot-end sealing valve 2 and hot-end sealing valve 4 are in an open or closed state, and the The hot-end control valve block is divided into two separate hot-end chambers. 4.根据权利要求1所述的节能型燃气冲天炉运行装置，其特征是：所述高温烟气排出管包括圆形金属管和保温材料层。4. The energy-saving gas-fired cupola operating device according to claim 1, wherein the high-temperature flue gas discharge pipe comprises a circular metal pipe and an insulating material layer. 5.根据权利要求1所述的节能型燃气冲天炉运行装置，其特征是：所述氧化剂喷射孔组包括环形室、喷射孔和控制阀。5 . The energy-saving gas-fired cupola operating device according to claim 1 , wherein the oxidant injection hole group comprises an annular chamber, an injection hole and a control valve. 6 . 6.根据权利要求1所述的节能型燃气冲天炉运行装置，其特征是：所述烟气管内设置有排烟热电偶和CO传感器，所述燃气冲天炉内设置有炉膛热电偶，所述排烟热电偶、CO传感器和炉膛热电偶均连接控制器。6. The energy-saving gas-fired cupola operating device according to claim 1, wherein the flue gas pipe is provided with a smoke exhaust thermocouple and a CO sensor, the gas-fired cupola is provided with a furnace thermocouple, the The exhaust thermocouple, CO sensor and furnace thermocouple are all connected to the controller. 7.一种权利要求1的节能型燃气冲天炉运行装置的方法，其特征是，包括如下步骤：7. A method for an energy-saving gas-fired cupola operating device according to claim 1, wherein the method comprises the steps of: (1)烘炉运行初期，冷端密封阀二、冷端密封阀四、热端密封阀二和热端密封阀四打开，而冷端密封阀一、冷端密封阀三、热端密封阀一和热端密封阀三关闭，空气经冷空气管、冷端控制阀组的冷端密封阀二、高温蓄热体组一的冷端一进入到高温蓄热体组一中，再经热端一进入到热端控制阀组的热端密封阀四，进入到高温空气管，与燃气管流出的燃气进入燃烧器进行燃烧，产生的烟气经熔化预热段进入到高温烟气排出管中；烟气从高温烟气排出管流出后，经热端密封阀二、热端二进入蓄热体组后，再经冷端二进入到冷端控制阀组的冷端密封阀四后再进入烟气管而排出炉外；(1) At the beginning of the oven operation, the cold end sealing valve 2, the cold end sealing valve 4, the hot end sealing valve 2 and the hot end sealing valve 4 are opened, while the cold end sealing valve 1, the cold end sealing valve 3 and the hot end sealing valve are opened. The first and the hot end sealing valve 3 are closed, and the air enters the high temperature heat accumulator group 1 through the cold air pipe, the cold end sealing valve of the cold end control valve group 2, and the cold end 1 of the high temperature heat accumulator group 1, and then passes through the heat storage body group 1. The first end enters the hot end sealing valve of the hot end control valve group, and enters the high temperature air pipe, and the gas flowing out of the gas pipe enters the burner for combustion, and the generated flue gas enters the high temperature flue gas discharge pipe through the melting and preheating section. middle; after the flue gas flows out from the high temperature flue gas discharge pipe, it enters the regenerator group through the hot end sealing valve 2 and the hot end 2, and then enters the cold end sealing valve 4 of the cold end control valve group through the cold end 2. into the flue gas pipe and out of the furnace; 当排烟热电偶测量温度超过150℃后，控制器控制冷端密封阀二、冷端密封阀四、热端密封阀二和热端密封阀四关闭，而冷端密封阀一、冷端密封阀三、热端密封阀一和热端密封阀三打开，烟气从高温烟气排出管流出后，经热端密封阀三、热端一进入蓄热体组后，再经冷端一进入到冷端控制阀组的冷端密封阀一后再进入烟气管而排出炉外，蓄热体组吸收烟气中的热量，从而使得烟气管排出烟气的温度降低；此时空气经冷空气管、冷端控制阀组的冷端密封阀三、冷端二进入到蓄热体组后流过热端二，空气被蓄热体组所吸收的热量所加热，再经热端控制阀的热端密封阀一后进入到高温空气管，与燃气管流出的燃气进入燃烧器进行燃烧，当排烟热电偶测量烟气温度超过150℃后，控制器控制冷端密封阀二、冷端密封阀四、热端密封阀二和热端密封阀四打开，而冷端密封阀一、冷端密封阀三、热端密封阀一和热端密封阀三关闭，重复上述过程，控制器控制热端控制阀组和冷端控制阀组内的控制阀交替处于打开或者关闭状态，使得烟气交替通过高温蓄热体组一和高温蓄热体组二，控制烟气管排出的烟气的温度不超过150℃；When the temperature measured by the exhaust thermocouple exceeds 150°C, the controller controls the cold end sealing valve 2, the cold end sealing valve 4, the hot end sealing valve 2 and the hot end sealing valve 4 to close, while the cold end sealing valve 1 and the cold end sealing valve are closed. Valve 3, hot-end sealing valve 1 and hot-end sealing valve 3 are opened. After the flue gas flows out from the high-temperature flue gas discharge pipe, it enters the regenerator group through the hot-end sealing valve 3 and hot-end 1, and then enters through the cold-end 1. The cold-end sealing valve of the cold-end control valve group enters the flue gas pipe and is discharged out of the furnace, and the heat accumulator group absorbs the heat in the flue gas, thereby reducing the temperature of the flue gas discharged from the flue gas pipe; The cold air pipe, the cold end sealing valve 3 and the cold end 2 of the cold end control valve group enter the regenerator group and flow through the hot end 2. The air is heated by the heat absorbed by the regenerator group, and then passes through the hot end control valve. The hot end sealing valve enters the high temperature air pipe, and the gas flowing out of the gas pipe enters the burner for combustion. When the flue gas temperature measured by the exhaust thermocouple exceeds 150 °C, the controller controls the cold end sealing valve. Second, the cold end The sealing valve 4, the hot-end sealing valve 2 and the hot-end sealing valve 4 are opened, while the cold-end sealing valve 1, the cold-end sealing valve 3, the hot-end sealing valve 1 and the hot-end sealing valve 3 are closed, and the above process is repeated, and the controller controls The control valves in the hot-end control valve group and the cold-end control valve group are alternately opened or closed, so that the flue gas passes through the high-temperature regenerator group 1 and the high-temperature regenerator group 2 alternately, and controls the flow rate of the flue gas discharged from the flue gas pipe. The temperature does not exceed 150℃; (2)当炉膛热电偶测量烟气温度超过650℃且CO传感器检测到CO浓度>500ppm时，打开控制阀，一定量氧化剂通过环形室、喷射孔喷射到高温烟气排出管内与烟气中的CO进行氧化反应，生成二氧化碳并释放出热量，烟气温度进一步提高，并进入到热端控制阀组；(2) When the temperature of the flue gas measured by the thermocouple in the furnace exceeds 650 °C and the CO sensor detects that the CO concentration is >500 ppm, the control valve is opened, and a certain amount of oxidant is injected into the high-temperature flue gas discharge pipe and the flue gas through the annular chamber and the injection hole. CO undergoes oxidation reaction, generates carbon dioxide and releases heat, the temperature of flue gas is further increased, and enters the hot-end control valve group; (3)当炉膛热电偶测量烟气温度超过1200℃时，烘炉工作完成，打开进料密封阀3进行间隔加料，实现连续运行；(3) When the temperature of the flue gas measured by the thermocouple in the furnace exceeds 1200 °C, the oven work is completed, and the feeding sealing valve 3 is opened to carry out intermittent feeding to realize continuous operation; (4)当需要进行停炉时，关闭进料密封阀，通过控制器逐步按比例减少冷空气管和燃气管供应量，约30分钟后供应量达到设计流量的1/3，不再降低冷空气管和燃气管供应量，且控制燃气与空气体积比例为1:9.5-10.5，直到全部熔化预热段的物料全部熔化为止；(4) When it is necessary to shut down the furnace, close the feed sealing valve, and gradually reduce the supply of cold air pipes and gas pipes in proportion through the controller. After about 30 minutes, the supply will reach 1/3 of the design flow, and the cooling The supply of air pipes and gas pipes, and the volume ratio of gas and air is controlled to be 1:9.5-10.5, until all the materials in the melting preheating section are completely melted; (5)当停炉时间小于1小时时，维持燃气管供应量为设计流量的1/3，燃气与空气体积比例控制在1:10-12；(5) When the shutdown time is less than 1 hour, keep the supply of gas pipe at 1/3 of the design flow, and control the ratio of gas to air volume at 1:10-12; (6)当停炉时间大于8小时，停止燃气管和空气管的供应，运行结束。(6) When the shutdown time is greater than 8 hours, stop the supply of gas pipes and air pipes, and the operation ends.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659141A (en) * 1949-05-03 1951-10-17 Otto Metzner Improvements relating to the utilization of the heat contained in the waste gases from shaft furnaces
CN101726175A (en) * 2009-12-08 2010-06-09 赵文鹤 Heat accumulating type external heat blast cupola furnace
CN103063011A (en) * 2012-12-19 2013-04-24 朱瑞辉 Energy-saving environment-friendly high-blast-temperature cupola system equipment
CN103363802A (en) * 2012-03-29 2013-10-23 中国石油化工股份有限公司 Flame heating furnace
CN203657429U (en) * 2013-11-11 2014-06-18 山东建筑大学 Gas-fired cupola furnace for production of rock wool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659141A (en) * 1949-05-03 1951-10-17 Otto Metzner Improvements relating to the utilization of the heat contained in the waste gases from shaft furnaces
CN101726175A (en) * 2009-12-08 2010-06-09 赵文鹤 Heat accumulating type external heat blast cupola furnace
CN103363802A (en) * 2012-03-29 2013-10-23 中国石油化工股份有限公司 Flame heating furnace
CN103063011A (en) * 2012-12-19 2013-04-24 朱瑞辉 Energy-saving environment-friendly high-blast-temperature cupola system equipment
CN203657429U (en) * 2013-11-11 2014-06-18 山东建筑大学 Gas-fired cupola furnace for production of rock wool

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