CN2588300Y - Power dispersing heat storage type sintering ignition furnace - Google Patents
Power dispersing heat storage type sintering ignition furnace Download PDFInfo
- Publication number
- CN2588300Y CN2588300Y CN 02292758 CN02292758U CN2588300Y CN 2588300 Y CN2588300 Y CN 2588300Y CN 02292758 CN02292758 CN 02292758 CN 02292758 U CN02292758 U CN 02292758U CN 2588300 Y CN2588300 Y CN 2588300Y
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- furnace
- storage heater
- ignition furnace
- heat storage
- heat
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Abstract
The utility model relates to the ore smelting technology, particularly a heat accumulating type sintering ignition furnace, which comprises an ignition zone and a holding zone. A combustion system is arranged on a furnace wall which is thickened. The interior of the furnace wall is provided with a high-temperature channel, and the inner side of the furnace wall is provided with burning nozzles which are arranged on a row shape and are power dispersion type burning nozzles. The high-temperature channel is connected with a heat storage device on the outer side of the furnace wall, and the exterior of the heat storage device is provided with a reversing system. The back of the reversing system is connected with an air pipeline, a gas pipeline and a small smoke exhaust pipeline. The heat storage device of the reversing system, the air pipeline, the gas pipeline and the small smoke exhaust pipeline are integrally connected, and the high temperature part and the low temperature part of the sintering ignition furnace is strictly separated by the heat storage device. High temperature gas is operated under the low temperature, and the temperature of the smoke exhaust system is lower and is not greater than 150 DEG C. Combustion-supporting air and fuel absorb the heat of a heat storage body after passing through the heat storage device, the temperature which is higher than 1000 DEG C enters the ignition furnace through a high temperature channel, and the diffusion combustion is formed in the furnace chamber.
Description
Technical field
The utility model relates to the ignition furnace of ore smelting technology, particularly a kind of novel sintered usefulness.
Background technology
Sintering is the important component part of ore smelting set-up procedure, sintering ignition is the important component part that influences the process energy consumption index simultaneously, combustion technology has had the development of advancing by leaps and bounds in recent years, its representative technology is exactly a regenerative combustion system, comprises heat-storage type burner, the commutator system of symmetric arrangement and the control system that matches.
The a pair of heat-storage type burner of symmetric arrangement, when fuel and cold air were fed by a side, the flame that burning generates is heating material ore deposit in the ignition furnace burner hearth at first, and waste gas enters opposite side then, and heat storage is heated.Through after the regular hour, send instruction by control system, finish the flow direction of air and fuel and flue gas by commutator system and control, like this, a side that was in the accumulation of heat state originally becomes the heat release state, and the opposite side that is in the heat release state becomes the accumulation of heat state.
The outstanding advantage of regenerative combustion technology is:
(1) reduce fuel consumption significantly, owing to be preheating to more than 1000 ℃, exhaust gas temperature is lower than 150 ℃ again, so the fuel consumption of stove descends significantly, and the saving of fuel rate improves more than 25%.
(2) because combustion air and the lower coal gas of calorific value are preheating to more than 1100 ℃ simultaneously, improved the theoretical temperature combustion of fuel greatly, made the lower coal gas of calorific value can be directly used in sintering ignition furnace.
But, still do not have the desirable heat accumulating type sintering ignition furnace of a kind of combination property at present.
The utility model content
The purpose of this utility model is to provide a kind of preheat temperature height, volume compact, and the efficiency of combustion height is convenient to realize the heat accumulating type sintering ignition furnace of energy-conserving and environment-protective.
For achieving the above object, the technical solution of the utility model provides a kind of power decentralized heat accumulating type sintering ignition furnace, is made up of igniting section and soaking zone, comprising:
Combustion system is arranged on the wall of furnace side, and the furnace side wall is than conventional point stove wall thickening, and the furnace side is established high temperature channel within the walls, high temperature channel in the furnace side within the walls side establish the burning spout; Be provided with sealing system in the body of heater bottom, sealing system contacts with chassis is moving; High temperature channel is the side joint storage heater outside the wall of furnace side, and storage heater is taken over external exchange system with storage heater; Connect combustion system air duct, combustion system gas piping and small-sized smoke discharging pipe after the exchange system; Exchange system connects into an integrated piping network with storage heater, storage heater adapter, combustion system air duct, combustion system gas piping, small-sized smoke discharging pipe.
Described power decentralized heat accumulating type sintering ignition furnace, its described storage heater is separately strict with the high-temperature part and the low temperature part of sintering ignition furnace, and storage heater is outward the low temperature part, and storage heater inside and ignition furnace are high-temperature part.
Described power decentralized heat accumulating type sintering ignition furnace, its described burning spout adopt row's shape spout to arrange, are power decentralized burning spout.
Described power decentralized heat accumulating type sintering ignition furnace is filled with heat storage in its described storage heater.
Described power decentralized heat accumulating type sintering ignition furnace, its described heat storage adopts the spherical refractory material heat storage of Φ 5-Φ 50mm.
Core technology of the present utility model is to burn on the basis of high preheat temperature, reduces exhaust gas temperature, helps energy-conservationly, makes low-heat value gas directly obtain using simultaneously, for improving the burner hearth thermal efficiency to greatest extent; Consider fully to disperse the power of each burner in the design, the quantity of burner spout is many, and power disperses; Cancel loaded down with trivial details pipe-line system and annex.
The heat supply of wherein igniting section, smoke evacuation is only admitted in not heat supply of soaking zone, and furnace roof adopts the open hearth top.
Its burning spout disperses away the power of a heat-accumulating burner, reduces burning velocity, prolongs the heat transfer time, thereby reaches the purpose that improves the burner hearth thermal efficiency; And storage heater is separately strict with the high-temperature part and the low temperature part of sintering ignition furnace, high-temperature gas after having gone out storage heater in cold operation, exchange system and smoke evacuation system temperature are lower, be not more than 150 ℃, and combustion air and fuel are by absorbing the heat in the heat storage behind the storage heater, enter ignition furnace through high temperature channel and burning behind the spout with the temperature that is higher than 1000 ℃, in burner hearth, form diffusion combustion, form advanced in the world at present HTAC combustion mode (high temperature air combustion).
Outstanding advantage of the present utility model:
(1) improves the burner hearth thermal efficiency to greatest extent, given prominence to characteristics of energy saving.
(2) preheat temperature height also can be realized the conversion of low calorie fuels to exotic fuels.
(3) temperature is even in the stove, and sintering feed millet cake fire quality is good.
(4) cancelled the subsidiary component of conventional sintering ignition furnace, the maintenance amount is little.
Compare with prior art, its outstanding feature is that material alterations has taken place combustion system:
(1) introduced the notion of high temperature preheating, native system has adopted air, gas double pre-heating, and preheat temperature is higher than 900 ℃, has reduced the requirement to fuel.
(2) high temperature channel and burning spout are arranged in the furnace wall, have cancelled the loaded down with trivial details annexes such as burner of furnace roof or side wall.
(3) adopt the ignition furnace of native system to integrate burning, insulation, UTILIZATION OF VESIDUAL HEAT IN, discharge fume, be characterized in compact conformation, heat energy utilization rate height has been realized the direct utilization of low calorie fuels simultaneously.
Description of drawings
Fig. 1 sintering ignition furnace skiagraph;
Fig. 2 sintering ignition furnace cross-sectional view;
Fig. 3 sintering ignition furnace System planes figure.
The specific embodiment
Be provided with burning spout 3, high temperature channel 4, storage heater 5 (left storage heater is 5a, and right storage heater is 5b), storage heater adapter 6, exchange system 7, body of heater lower seal system 8, combustion air pipeline 9, fuel gas pipeline 10, smoke evacuation system pipeline 11, combustion fan 12, smoke exhaust fan 13, heat storage 14, heat storage bottom installing rack 15, chassis 16, air flow rate adjustment valve 17, gas flow control valve 18 in the igniting section 1.
Ignition furnace comprises igniting section 1 and soaking zone 2,1 heat supply of wherein igniting section, and smoke evacuation is only admitted in soaking zone 2 not heat supplies, and furnace roof 20 adopts the open hearth top.
Ignition furnace can be divided into three parts:
1, high-temperature part: combustion system is arranged on the furnace side wall 19, furnace side wall 19 is established high temperature channel 4 than the thickening of conventional point stove wall in the furnace side wall 19, high temperature channel 4 is provided with burning spout 3 in furnace side wall 19 inboards, the row's of employing shape spout is arranged, is power decentralized burning spout; In the body of heater bottom, be provided with sealing system 8 in depressing headwall 21, sealing system 8 and chassis 16 moving contacts make the burner hearth sealing.
2, heat exchange section: high temperature channel 4 is side joint left side storage heater 5a and right storage heater 5b outside furnace side wall 19, fill heat storage 14 in left side storage heater 5a and the right storage heater 5b, heat storage 14 adopts the spherical refractory material heat storage of Φ 5-Φ 50mm, left side storage heater 5a and right storage heater 5b are separately strict with the high-temperature part and the low temperature part of sintering ignition furnace, high-temperature gas is going out storage heater 5a, behind the 5b in cold operation, exchange system 7 and smoke evacuation system temperature are lower, be not more than 150 ℃, and combustion air and fuel are by storage heater 5a, absorb the heat in the heat storage 14 behind the 5b, behind high temperature channel 4 and burning spout 3, enter ignition furnace with the temperature that is higher than 1000 ℃, in burner hearth, form diffusion combustion.Storage heater 5a, 5b bottom are established storage heater and are taken over 6, and storage heater is taken over the external exchange system 7 of 6 other ends.
3, low temperature part: connect combustion air pipeline 9, fuel gas pipeline 10, smoke discharging pipe 11 after the exchange system 7; Air flow rate adjustment valve 17 and combustion fan 12 are housed connecing on the combustion air pipeline 9, gas flow control valve 18 and smoke exhaust fan 13 are housed on fuel gas pipeline 10; Exchange system 7 connects into an integrated piping network with left storage heater 5a and right storage heater 5b, storage heater adapter 6, combustion air pipeline 9, fuel gas pipeline 10, smoke discharging pipe 11.
Concrete duty is:
(1) left side burning right side accumulation of heat: combustion air and fuel gas enter the left side under the control of exchange system 7 storage heater 5a carries out preheating, enter separately high temperature channel 4 with the condition of high temperature, by the burning of spout 3 inlet point stove burner hearths, the storage heater 5b on right side carries out accumulation of heat; Through the regular hour, exchange system 7 is sent instruction, finishes the commutation action.
(2) right side burning left side accumulation of heat: combustion air and fuel gas enter the right side under the control of exchange system 7 storage heater 5b carries out preheating, enter separately high temperature channel 4 with the condition of high temperature, by the burning of spout 3 inlet point stove burner hearths, the storage heater 5a in left side carries out accumulation of heat; Through the regular hour, exchange system is sent instruction, finishes the commutation action.
(3) chassis 16 is in the ignition furnace burner hearth, passed through to the direction of soaking zone 2 by igniting section 1, to finish the sintering task.
Adopt sintering ignition furnace of the present utility model, extremely low to the requirement of fuel, even adopt blast furnace gas, its firing temperature still can reach 1200 ℃, and is lower to the gas pressure requirement simultaneously, can guarantee at gas pressure in 3000Pa stable operation, realize low exhaust gas temperature, energy savings significantly simultaneously.
Claims (5)
1, a kind of power decentralized heat accumulating type sintering ignition furnace is made up of igniting section and soaking zone, it is characterized in that, comprising:
Combustion system is arranged on the wall of furnace side, and the furnace side wall is than conventional point stove wall thickening, and the furnace side is established high temperature channel within the walls, high temperature channel in the furnace side within the walls side establish the burning spout; Be provided with sealing system in the body of heater bottom, sealing system contacts with chassis is moving; High temperature channel is the side joint storage heater outside the wall of furnace side, and storage heater is taken over external exchange system with storage heater; Connect combustion system air duct, combustion system gas piping and small-sized smoke discharging pipe after the exchange system; Exchange system connects into an integrated piping network with storage heater, storage heater adapter, combustion system air duct, combustion system gas piping, small-sized smoke discharging pipe.
2, power decentralized heat accumulating type sintering ignition furnace as claimed in claim 1 is characterized in that, described storage heater is separately strict with the high-temperature part and the low temperature part of sintering ignition furnace, and storage heater is outward the low temperature part, and storage heater inside and ignition furnace are high-temperature part.
3, power decentralized heat accumulating type sintering ignition furnace as claimed in claim 1 is characterized in that, described burning spout adopts row's shape spout to arrange, is power decentralized burning spout.
4, power decentralized heat accumulating type sintering ignition furnace as claimed in claim 1 is characterized in that, is filled with heat storage in the described storage heater.
5, power decentralized heat accumulating type sintering ignition furnace as claimed in claim 4 is characterized in that, described heat storage adopts the spherical refractory material heat storage of Φ 5-Φ 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292758 CN2588300Y (en) | 2002-12-24 | 2002-12-24 | Power dispersing heat storage type sintering ignition furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02292758 CN2588300Y (en) | 2002-12-24 | 2002-12-24 | Power dispersing heat storage type sintering ignition furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588300Y true CN2588300Y (en) | 2003-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02292758 Expired - Lifetime CN2588300Y (en) | 2002-12-24 | 2002-12-24 | Power dispersing heat storage type sintering ignition furnace |
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| CN (1) | CN2588300Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556405A (en) * | 2019-01-16 | 2019-04-02 | 大峘集团有限公司 | A kind of dual-purpose sintering ignition furnace of energy-saving coal dust gas |
-
2002
- 2002-12-24 CN CN 02292758 patent/CN2588300Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556405A (en) * | 2019-01-16 | 2019-04-02 | 大峘集团有限公司 | A kind of dual-purpose sintering ignition furnace of energy-saving coal dust gas |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121224 Granted publication date: 20031126 |