CN204285450U - Air single-preheating integral type sintering ignition furnace - Google Patents
Air single-preheating integral type sintering ignition furnace Download PDFInfo
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- CN204285450U CN204285450U CN201420750969.6U CN201420750969U CN204285450U CN 204285450 U CN204285450 U CN 204285450U CN 201420750969 U CN201420750969 U CN 201420750969U CN 204285450 U CN204285450 U CN 204285450U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of air single-preheating integral type sintering ignition furnace, belong to agglomerating plant field, comprise sintering ignition furnace, sintering ignition furnace comprises burner and gas entry, burner is inserted in body of heater, gas entry is connected on burner, also comprise hot-air efferent duct and preheating furnace, one end of hot-air efferent duct is connected on a sidewall of preheating furnace, the other end is connected with burner, preheating furnace inside is provided with combustion chamber and hot air chamber, combustion chamber is connected with combustion air access tube and Gas Pipe, hot air chamber is connected with burner by hot-air efferent duct, air intake is connected input air with hot air chamber.Air single-preheating integral type sintering ignition furnace of the present utility model, the basis of original sintering ignition furnace has installed additional preheating furnace, preheating furnace heats air, makes hot-air and blast furnace gas mixed combustion, overcomes the technical problem that blast furnace gas combustion calorific value is lower.
Description
Technical field
The utility model relates to agglomerating plant field, and specifically, the utility model relates to air single-preheating integral type sintering ignition furnace.
Background technology
Sintering is metallurgy industry, particularly the important component part of ore set-up procedure in smelting iron and steel, is also one of key operation affecting whole smelting process energy consumption index simultaneously.Sintering is for blast furnace process provides a kind of processing method of " fine fodder ", its essence is ready various raw material (concentrate, breeze, fuel, flux, return mine and iron content production waste etc.), by a certain percentage through batching, mixing and granulation, obtain satisfactory sintering feed, sintering feed produces high temperature through igniting by the burning of carbon and the oxidation of iron mineral, part composition in sintering feed is softened and fusing, there is the liquid phase that chemical reaction generates some, mutually be bonded to block during cooling, the product of its process is in sintering deposit.
The fuel that present sintering ignition furnace uses mostly is natural gas, but uses the cost of natural gas higher; For saving production cost, now use blast furnace gas to make fuel, although enterprise uses blast furnace gas cost lower, the calorific value of blast furnace gas is low compared with the calorific value of natural gas, and the simple low ore that causes of calorific value of blast furnace gas combustion that uses does not reach sintering requirement.
Summary of the invention
Technical problem to be solved in the utility model is: the technical problem low for above-mentioned blast furnace gas combustion calorific value develops a kind of preheating furnace, and the air mixed with blast furnace gas is carried out preheating, makes the temperature of fuel combustion reach sintering requirement.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: air single-preheating integral type sintering ignition furnace, comprise sintering ignition furnace, described sintering ignition furnace comprises burner and gas entry, burner is inserted in body of heater, gas entry is connected on burner, also comprise hot-air efferent duct and preheating furnace, one end of described hot-air efferent duct is connected on a sidewall of preheating furnace, the other end is connected with burner, described preheating furnace inside is provided with combustion chamber and hot air chamber, combustion chamber is connected with combustion air access tube and Gas Pipe, hot air chamber is connected with burner by hot-air efferent duct, air intake is connected input air with hot air chamber.
Preferably, described preheating furnace and sintering ignition furnace link together, and preheating furnace and sintering ignition furnace are be arranged on the all-in-one on same base.
Preferably, heat exchanger is provided with between described combustion chamber and hot air chamber.
Preferably, described preheating furnace is provided with waste discharge gas port near a side of combustion chamber.
Preferably, described preheating furnace top is provided with thermometer hole and pressure tap.
Preferably, described base is arranged on chassis, and preheating furnace can move with chassis with sintering ignition furnace.
Adopt the technical solution of the utility model, following beneficial effect can be obtained:
Air single-preheating integral type sintering ignition furnace of the present utility model, the basis of original sintering ignition furnace has installed additional preheating furnace, preheating furnace heats air, makes hot-air and blast furnace gas mixed combustion, overcomes the technical problem that blast furnace gas combustion calorific value is lower; Preheating furnace is integrated on original sintering ignition furnace simultaneously, and transmission pipeline is short, makes thermal loss in transmitting procedure low, and preheating furnace and sintering ignition furnace integrate and the volume of whole body of heater is reduced; Sintering ignition furnace bottom is provided with chassis, and sintering ignition furnace can move with chassis, handled easily.
Accompanying drawing explanation
Brief description is made to the content expressed by each accompanying drawing of this description and the mark in figure below:
Fig. 1 is top view of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the structural representation of preheating furnace in Fig. 2;
Mark in above-mentioned figure is: 1, sintering ignition furnace; 11, burner; 12, gas entry; 13, hot-air efferent duct; 14, air control valve; 2, preheating furnace; 21, air intake; 22, waste discharge gas port; 23, combustion air access tube; 24, Gas Pipe; 25, thermometer hole; 26, pressure tap; 27, combustion chamber; 28, hot air chamber; 29, heat exchanger; 3, chassis.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the effect and operation principle etc. of detailed description of the invention of the present utility model as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
As shown in Figure 1, 2, 3, ore sinters in the body of heater of sintering ignition furnace 1, sintering ignition furnace 1 comprises burner 11 and gas entry 12, blast furnace gas is transported in burner 11 by gas entry 12, and the air be preheated is transported in burner 11 and blast furnace gas mixed combustion by hot-air efferent duct 13.
As Fig. 1, shown in 4, preheating furnace 2 comprises air intake 21, waste discharge gas port 22, combustion air access tube 23, Gas Pipe 24, combustion chamber 27, hot air chamber 28 and heat exchanger 29, the coal gas that Gas Pipe 23 exports and the air that combustion air access tube 22 exports mix and are incorporated in combustion chamber 27 combustion, heat in combustion chamber 27 is delivered in hot air chamber 28 by heat exchanger 29, the waste gas produced in combustion process is discharged out of the furnace by waste discharge gas port 22, cold air outside stove enters hot air chamber 28 by air intake 21, cold air is heated to 250 DEG C in hot air chamber 28, hot-air is lighter, concentrate on the top of preheating furnace 2, then by hot-air efferent duct 13, hot-air is delivered in the air interface of burner 11, hot-air efferent duct 13 is provided with air control valve 14, air control valve 14 can control the size of hot air flowrate, the air of heat burner 11 in and blast furnace gas mixed combustion, makes ignition temperature reach the requirement of ore sintering.
As shown in Figure 1, the utility model adds preheating furnace 2 on the basis of original sintering ignition furnace 1, air heat is passed to burner 11 by pipeline by preheating furnace 2 after 250 DEG C, hot-air sinters ore with blast furnace gas mixed combustion in burner 11, the technical solution of the utility model overcomes the low shortcoming of original blast furnace gas combustion calorific value, carry out improving to equipment and continue to use more cheap blast furnace gas to sinter ore, reach the requirement of sintering temperature simultaneously, save production cost.
Preheating furnace 2 is arranged on original sintering ignition furnace 1 top, and with the more public air ducts of sintering ignition furnace and can not have gas piping like this, the loss not only reduced in heat transfer process also reduces the volume of integral device.Whole agglomerating plant is arranged on chassis 3, roller is provided with bottom chassis 3, can easily promote when whole agglomerating plant needs mobile like this, time saving and energy saving easy access and replacing, choose rational igniting, temperature retention time determines igniting section, soaking zone length thus meet whole ignition process requirement, when agglomerating plant needs steady job to be place obstacles under roller.
Sintering ignition furnace 1 body of heater is that the outermost layer of steel structure is surrounded by steel plate; surrounding shaped steel forms frame structure; furnace roof establishes channel-section steel sub-assembly crossbeam; for the fireproof prefabricated beam of hanging furnace top and burner; rear wall chase steel is protect by rear wall precast beam; and add refractory fiber cotton protection between channel-section steel and precast beam gap, rear wall chase steel is not out of shape by high-temperature baking.
Burner 11 adopts the two water conservancy diversion igniter burner of novel sleeve updraft, and contour structures is simple, flame on chassis width in sequential like, this burner be provided with twice Mixed Zone, mixing fully, burning completely.Combustion blast furnace gas ignitor for sintering adopts pure blast furnace gas, and its main problem is exactly that calorific value is low, and burner very easily blocks, and therefore in this programme, burner adopts the hot special ignition burner of combustion blast furnace gas.This igniter burner be specific adaptation in the particular/special requirement of pure blast furnace gas, adopt special design, meet the high and performance requirement of instability of blast-furnace gas pressure; The self-cleaning form of burner head indoor design air-flow, therefore not easily tie ash, the heat capacity of this burner modern design, flame stabilization, not tempering, not de-fire, both sides burner is more bigger than middle, therefore on chassis width, ignition intensity is even, charge level can not produce superfusion, improve the gas permeability of the bed of material, thus ensure the ignition quality of the overall bed of material.Embodiment design burner of the present utility model arranges that on furnace roof three arrange, and that often arranges burner is arranged as first row 8, second row 7, and the 3rd row 8, amount to 23 burners, burner head material adopts heat-resisting alloy steel.
The preheating furnace 2 of this programme design integrates with sintering ignition furnace 1, be provided with blast furnace gas burner nozzle in preheating furnace 2 inside and be provided with combustion chamber 27, heat exchanger 29 is provided with between combustion chamber 27 and hot air chamber 28, the flue gas of combustion chamber 27 combustion is through air heat exchanger 29, the combustion air of ignition furnace is preheating to 250 DEG C, hot-air is for ignition furnace burner, the useless waste discharge gas port 22 of flue gas after soaking zone charge level is taken away by main frame air inducing, preheating furnace 2 top is provided with thermometer hole 25 and pressure tap 26, facilitates the temperature in Real-Time Monitoring stove and pressure data.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (6)
1. air single-preheating integral type sintering ignition furnace, comprise sintering ignition furnace, described sintering ignition furnace comprises burner and gas entry, burner is inserted in body of heater, gas entry is connected on burner, it is characterized in that: also comprise hot-air efferent duct and preheating furnace, one end of described hot-air efferent duct is connected on a sidewall of preheating furnace, the other end is connected with burner, described preheating furnace inside is provided with combustion chamber and hot air chamber, combustion chamber is connected with combustion air access tube and Gas Pipe, hot air chamber is connected with burner by hot-air efferent duct, air intake is connected input air with hot air chamber.
2. air single-preheating integral type sintering ignition furnace according to claim 1, is characterized in that: described preheating furnace and sintering ignition furnace link together, and preheating furnace and sintering ignition furnace are be arranged on the all-in-one on same base.
3. air single-preheating integral type sintering ignition furnace according to claim 1, is characterized in that: be provided with heat exchanger between described combustion chamber and hot air chamber.
4. air single-preheating integral type sintering ignition furnace according to claim 2, is characterized in that: the side of described preheating furnace near combustion chamber is provided with waste discharge gas port.
5. air single-preheating integral type sintering ignition furnace according to claim 2, is characterized in that: described preheating furnace top is provided with thermometer hole and pressure tap.
6. air single-preheating integral type sintering ignition furnace according to claim 2, it is characterized in that: described base is arranged on chassis, preheating furnace can move with chassis with sintering ignition furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750969.6U CN204285450U (en) | 2014-12-04 | 2014-12-04 | Air single-preheating integral type sintering ignition furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750969.6U CN204285450U (en) | 2014-12-04 | 2014-12-04 | Air single-preheating integral type sintering ignition furnace |
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| Publication Number | Publication Date |
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| CN204285450U true CN204285450U (en) | 2015-04-22 |
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| CN201420750969.6U Active CN204285450U (en) | 2014-12-04 | 2014-12-04 | Air single-preheating integral type sintering ignition furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456541A (en) * | 2014-12-04 | 2015-03-25 | 安徽诚铭热能技术有限公司 | Air single preheating integrated sintering ignition furnace |
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2014
- 2014-12-04 CN CN201420750969.6U patent/CN204285450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456541A (en) * | 2014-12-04 | 2015-03-25 | 安徽诚铭热能技术有限公司 | Air single preheating integrated sintering ignition furnace |
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