CN101726181B - Internal-combustion high temperature furnace for ferro-coke pellets/lump ores - Google Patents
Internal-combustion high temperature furnace for ferro-coke pellets/lump ores Download PDFInfo
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- CN101726181B CN101726181B CN2009102015903A CN200910201590A CN101726181B CN 101726181 B CN101726181 B CN 101726181B CN 2009102015903 A CN2009102015903 A CN 2009102015903A CN 200910201590 A CN200910201590 A CN 200910201590A CN 101726181 B CN101726181 B CN 101726181B
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- high temperature
- temperature furnace
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Abstract
The invention provides an internal-combustion high temperature furnace for ferro-coke pellets/lump ores, which is characterized in that: the high temperature furnace comprises a high temperature furnace body; the front end and the rear end of the high temperature furnace body are provided with a pre-heating furnace and a cooling system respectively; the rear end of the cooling system is provided with a discharging platform; the front end of the pre-heating furnace is provided with an upper loading platform and a lower loading platform positioned below the upper loading platform; the ends of the upper loading platform and the lower loading platform are provided with a vehicle pusher respectively; and the upper loading platform and the lower loading platform are connected with the discharging platform by running through the pre-heating furnace, the high temperature furnace body and a sliding guide rail for a charging carriage of the cooling system respectively. The internal-combustion high temperature furnace has the advantages of simple structure, rational heating, uniform furnace temperature, high heat efficiency and capability of effectively controlling the emission of harmful gas, low labour intensity and production cost reduction.
Description
Technical field
The present invention relates to a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores, belong to the manufacturing equipment technical field that smelting palletizing/lump ore is used.
Background technology
The iron ore concentrate oxidation and sinter becomes sintering deposit or pellet before the tradition blast furnace ironmaking, generally with tunneled sintering kiln or vertical roaster, all adopts the naked light roasting.Tunneled sintering kiln comprises batching, mixed, cloth, is sintering and product treatment link then, and shortcoming is that production process and time are long, consumes a large amount of fuel, and the harmful smoke discharge capacity is big, and environmental pollution is serious, and equipment investment is big, and cost is too high.The same long processing time of vertical roaster yields poorly, and the energy consumption height has a large amount of sulfur dioxide and CO2 emission, contaminated environment, and also the mine tailing amount of not moulding is big, has increased production cost.
Summary of the invention
The purpose of this invention is to provide a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores, make it without naked light sintering or roasting, and simple in structure, heat rationally, furnace temperature is even, improve product quality, thermal efficiency height improves output, reduce production costs, effectively control noxious gas emission, and can utilize the breeze of low value, labour intensity is low.
In order to achieve the above object, technical scheme of the present invention has provided a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores, it is characterized in that, comprise the high temperature furnace body, be respectively equipped with preheating furnace and cooling system at high temperature furnace body front end and rear end, cooling system divides two sections, be respectively steam and spray cooling section and water spacer cooling section, rear end at cooling system is provided with discharging platform, be provided with the upper strata filling place and be positioned at lower floor's filling place below the filling place of upper strata at the preheating furnace front end, end at upper strata filling place and lower floor's filling place is respectively equipped with car puller, and upper strata filling place and lower floor's filling place are respectively by running through preheating furnace, the charging carriage of high temperature furnace body and cooling system slides guide rail and links to each other with discharging platform.
Further, described high temperature furnace body comprises body of heater, in body of heater, be provided with hot room, below hot room, be provided with the combustion chamber, on side wall of combustion chamber, be provided with at least one coal gas burner, every coal gas burner is furnished with at least one air outlet, is provided with the hot room flue at bottom of furnace body, and an end of hot room flue stretches out and is located in the combustion chamber.
Described preheating furnace is divided into two-layer up and down, on the inwall of preheating furnace, be equipped with high alumina checker brick structure, be provided with the preheating chamber flue in the bottom of described preheating furnace, one end of preheating chamber flue stretches out and is located in the preheating furnace, the other end of preheating chamber flue links to each other with the other end of hot room flue, be provided with flue shutter in the junction, 5 low degree of high back tilted before described preheating furnace was in the vertical.
The shell of described body of heater is built into by high-temperature refractory, and inner casing is high alumina checker brick structures, is covered with heat-preservation cotton between the cement layer in the shell and the outside, and 5 low degree of high back tilted before described body of heater was in the vertical.
Described hot room is divided into two-layer up and down, on the upper strata and lower floor be respectively equipped with at least one tunnel formula hot room, 5 low degree of high back tilted before described hot room was in the vertical.
Gas generator links to each other with coal gas burner in the combustion chamber by gas piping, the hot room flue connects air preheater by pipeline, air preheater connects air outlet by first blower fan and airduct, air preheater links to each other with waste heat boiler by second blower fan, waste heat boiler one end connects deduster by the 3rd blower fan, the other end of waste heat boiler connects steam by jet chimney and sprays cooling section, elevated tank links to each other with water spacer cooling section with water pipe by high-pressure hydraulic pump, water spacer cooling section directly connects elevated tank by reflux line, and elevated tank connects the recovery pond by overflow pipe.
The low 5 degree gradients in high back before whole body of heater of the present invention is, it is comparatively light to use car puller to promote charging carriage; The device air preheater utilizes the high temperature furnace waste heat to add warm air and uses for the combustion chamber, improves the thermal efficiency, waste heat flue gas after the circulation of high temperature furnace flue, enter air preheater by airduct and blower fan, the high temperature air of process heat exchange enters the combustion chamber from airduct, uses for the gas-fired of burner ejection; The device waste heat boiler utilizes the high temperature furnace waste heat to produce steam and cools off usefulness fast for finished product, and the residual heat high-temperature flue gas that air preheater comes out enters waste heat boiler, and the water in the tubulation is heated into steam rapidly, enters the combustion chamber; The device deduster is effectively controlled sulfur dioxide in flue gas and emission of carbon-dioxide; At high temperature furnace and preheating furnace flue thermocouple is housed all, except that temperature shows, also can regulates the dispensing air quantity automatically; At the high temperature furnace two ends input and output material loading/unloading platform is housed, is furnished with two car pullers, input and output material labour intensity is low; Two sides are equipped with checker brick in high temperature furnace and the preheating furnace stove, and flue gas transmission and rate of warming are fast, and temperature is even in the stove; High temperature furnace is provided with the cooling water recovery pond, and recovery pond is below elevated tank, and recycle-water enters the pond by overflow pipe, cooling water as a supplement, and cooling water recycles, and cuts the waste.
Description of drawings
Fig. 1 is the structural representation of a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores provided by the invention;
Fig. 2 is the vertical view of a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores provided by the invention;
Fig. 3 is the structural representation of high temperature furnace;
Fig. 4 is the structural representation of preheating furnace.
The specific embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
As shown in Figure 1, be a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores provided by the invention, comprise high temperature furnace body 1-13, be respectively equipped with preheating furnace 1-15 and cooling system at high temperature furnace body 1-13 front end and rear end, cooling system divides two sections, be respectively steam and spray cooling section 1-18 and water spacer cooling section 1-19, be provided with discharging platform 1-8 in the rear end of cooling system, be provided with upper strata filling place 1-4 and be positioned at the filling place 1-7 of lower floor below the filling place 1-4 of upper strata at preheating furnace 1-15 front end, end at upper strata filling place 1-4 and the filling place 1-7 of lower floor is respectively equipped with car puller 1-3, and upper strata filling place 1-4 and the filling place 1-7 of lower floor are respectively by running through preheating furnace 1-15, the charging carriage of high temperature furnace body 1-13 and cooling system slides guide rail 1-11 and links to each other with discharging platform 1-8.
As described in Fig. 1 and Fig. 3, high temperature furnace body 1-13 comprises body of heater 1-14, in body of heater 1-14, be provided with hot room 1-1, below hot room 1-1, be provided with combustion chamber 1-17, on the sidewall of combustion chamber 1-17, be provided with at least one coal gas burner 1-9, every coal gas burner 1-9 is furnished with at least one air outlet 1-10, is provided with hot room flue 1-5 in body of heater 1-14 bottom, and the end of hot room flue 1-5 stretches out and is located in the 1-17 of combustion chamber.
The shell of body of heater 1-14 is built into by high-temperature refractory, and inner casing is high alumina checker brick structures, is covered with heat-preservation cotton between the cement layer in the shell and the outside, and 5 low degree of high back tilted before body of heater 1-14 was in the vertical.
As shown in Figure 3, hot room 1-1 is divided into two-layer up and down, on the upper strata and lower floor be respectively equipped with at least one tunnel formula hot room 1-21,5 low degree of high back tilted before hot room 1-1 was in the vertical.
As shown in Figure 4, preheating furnace 1-15 is divided into two-layer up and down, on the inwall of preheating furnace 1-15, be equipped with high alumina checker brick structure, be provided with preheating chamber flue 1-20 in the bottom of described preheating furnace 1-15, the end of preheating chamber flue 1-10 stretches out and is located in the preheating furnace 1-15, the other end of preheating chamber flue 1-10 links to each other with the other end of hot room flue 1-5, is provided with flue shutter 1-12 in the junction, and 5 low degree of high back tilted before described preheating furnace 1-15 was in the vertical.
As described in Figure 2, gas generator 2-9 links to each other with coal gas burner 1-9 in the 1-17 of combustion chamber by gas piping 2-1, hot room flue 1-5 connects air preheater 2-13 by pipeline 2-2, air preheater 2-13 connects air outlet 1-10 by the first blower fan 2-5 and airduct 2-3, air preheater 2-13 links to each other with waste heat boiler 2-11 by the second blower fan 2-4, waste heat boiler 2-11 one end connects deduster 2-10 by the 3rd blower fan 2-6, the other end of waste heat boiler 2-11 connects steam by jet chimney 2-16 and sprays cooling section 1-18, elevated tank 2-12 links to each other with water spacer cooling section 1-19 with water pipe 2-8 by high-pressure hydraulic pump 2-15, water spacer cooling section 1-19 directly connects elevated tank 2-12 by reflux line 2-7, and elevated tank 2-12 connects recovery pond 2-14 by overflow pipe 2-17.
After the coal gas burner 1-9 burning, flame makes progress away along hot room 1-1 two side checker brick, behind the top, enter hot room flue 1-8 downwards along checker brick again, high-temperature flue gas enters preheating furnace 1-15 by flue shutter 1-12 by hot room flue 1-8, make progress away along two side checker brick, behind the top, enter preheating chamber flue 1-20 downwards.
As shown in Figure 2, the coal gas that gas generator 2-9 produces enters combustion chamber 1-17 along gas piping 2-1 and uses.The high-temperature flue gas of combustion chamber 1-17 enters preheating chamber flue 1-20 in hot room 1-1 circulation rear section by flue shutter 1-12 through hot room flue 1-5, major part enters air preheater 2-13 through pipeline 2-2, and the high-temperature flue gas of process heat exchange enters combustion chamber 1-17 by the first blower fan 2-5 and airduct 2-3 and uses.
The high-temperature flue gas that air preheater 2-13 comes out makes the water instantaneously producing steam in the waste heat boiler 2-11 by the second blower fan 2-4 and pipeline feeding waste heat boiler 2-11, and enters steam injection cooling section 1-18 for product cooling usefulness by jet chimney 2-16.Waste gas in the waste heat boiler 2-11 is sent into deduster 2-10 processing through the 3rd blower fan 2-6 and airduct.
Returning apparatus elevated tank 2-12 of the present invention and recovery pond 2-14, cooling water enters water spacer cooling section 1-19 with high-pressure hydraulic pump 2-15 and water pipe 2-8, cooling water is sent elevated tank 2-12 back to from reflux line 2-7 after cooling is used, superfluous water is flowed into by overflow pipe 2-17 and reclaims pond 2-14.
Claims (6)
1. internal-combustion high temperature furnace for ferro-coke pellets/lump ores, it is characterized in that, comprise high temperature furnace body (1-13), be respectively equipped with preheating furnace (1-15) and cooling system at high temperature furnace body (1-13) front end and rear end, cooling system divides two sections, be respectively steam and spray cooling section (1-18) and water spacer cooling section (1-19), be provided with discharging platform (1-8) in the rear end of cooling system, be provided with upper strata filling place (1-4) and be positioned at lower floor's filling place (1-7) of upper strata filling place (1-4) below at preheating furnace (1-15) front end, end at upper strata filling place (1-4) and lower floor's filling place (1-7) is respectively equipped with car puller (1-3), and upper strata filling place (1-4) and lower floor's filling place (1-7) are respectively by running through preheating furnace (1-15), the charging carriage of high temperature furnace body (1-13) and cooling system slides guide rail (1-11) and links to each other with discharging platform (1-8).
2. a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores as claimed in claim 1, it is characterized in that, described high temperature furnace body (1-13) comprises body of heater (1-14), in body of heater (1-14), be provided with hot room (1-1), be provided with combustion chamber (1-17) in the below of hot room (1-1), on the sidewall of combustion chamber (1-17), be provided with at least one coal gas burner (1-9), every coal gas burner (1-9) is furnished with at least one air outlet (1-10), be provided with hot room flue (1-5) in body of heater (1-14) bottom, an end of hot room flue (1-5) stretches out and is located in the combustion chamber (1-17).
3. a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores as claimed in claim 2, it is characterized in that, described preheating furnace (1-15) is divided into two-layer up and down, on the inwall of preheating furnace (1-15), be equipped with high alumina checker brick structure, be provided with preheating chamber flue (1-20) in the bottom of described preheating furnace (1-15), one end of preheating chamber flue (1-20) stretches out and is located in the preheating furnace (1-15), the other end of preheating chamber flue (1-20) links to each other with the other end of hot room flue (1-5), be provided with flue shutter (1-12) in the junction, 5 low degree of high back tilted before described preheating furnace (1-15) was in the vertical.
4. a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores as claimed in claim 2, it is characterized in that, the shell of described body of heater (1-14) is built into by high-temperature refractory, inner casing is high alumina checker brick structures, be covered with heat-preservation cotton between the cement layer in the shell and the outside, 5 low degree of high back tilted before described body of heater (1-14) was in the vertical.
5. a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores as claimed in claim 2, it is characterized in that, described hot room (1-1) is divided into two-layer up and down, on the upper strata and lower floor be respectively equipped with at least one tunnel formula hot room (1-21), 5 low degree of high back tilted before described hot room (1-1) was in the vertical.
6. a kind of internal-combustion high temperature furnace for ferro-coke pellets/lump ores as claimed in claim 2, it is characterized in that, gas generator (2-9) links to each other by the interior coal gas burner (1-9) of gas piping (2-1) and combustion chamber (1-17), hot room flue (1-5) connects air preheater (2-13) by pipeline (2-2), air preheater (2-13) connects air outlet (1-10) by first blower fan (2-5) and airduct (2-3), air preheater (2-13) links to each other with waste heat boiler (2-11) by second blower fan (2-4), waste heat boiler (2-11) end connects deduster (2-10) by the 3rd blower fan (2-6), the other end of waste heat boiler (2-11) connects steam by jet chimney (2-16) and sprays cooling section (1-18), elevated tank (2-12) links to each other with water spacer cooling section (1-19) with water pipe (2-8) by high-pressure hydraulic pump (2-15), water spacer cooling section (1-19) directly connects elevated tank (2-12) by reflux line (2-7), and elevated tank (2-12) connects recovery pond (2-14) by overflow pipe (2-17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102015903A CN101726181B (en) | 2009-12-22 | 2009-12-22 | Internal-combustion high temperature furnace for ferro-coke pellets/lump ores |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102015903A CN101726181B (en) | 2009-12-22 | 2009-12-22 | Internal-combustion high temperature furnace for ferro-coke pellets/lump ores |
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| Publication Number | Publication Date |
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| CN101726181A CN101726181A (en) | 2010-06-09 |
| CN101726181B true CN101726181B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102015903A Expired - Fee Related CN101726181B (en) | 2009-12-22 | 2009-12-22 | Internal-combustion high temperature furnace for ferro-coke pellets/lump ores |
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| CN103673612B (en) * | 2013-12-20 | 2015-05-20 | 北京科技大学 | Continuous pressure sintering device and process for high-speed heavy-load brake pad |
| CN103954129B (en) * | 2014-05-12 | 2017-10-31 | 祥云县黄金工业有限责任公司 | A kind of U-shaped multistage roaster |
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