CN207452170U - It is a kind of to divide stove with the molten of assisted combustion device - Google Patents
It is a kind of to divide stove with the molten of assisted combustion device Download PDFInfo
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- CN207452170U CN207452170U CN201721481727.1U CN201721481727U CN207452170U CN 207452170 U CN207452170 U CN 207452170U CN 201721481727 U CN201721481727 U CN 201721481727U CN 207452170 U CN207452170 U CN 207452170U
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- stove
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- combustion device
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- divides
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Abstract
Divide stove with the molten of assisted combustion device the utility model is related to a kind of.Described melt divides stove to include molten bath, regenerative chamber burner and the assisted combustion device, described melt divides the molten bath of stove to include the charging zone, fusion zone and Disengagement zone that are sequentially connected setting, and the side wall in the molten bath is equipped with the regenerative chamber burner and the assisted combustion device.The utility model can ensure that the material of charging zone generates and melt point stove normal operation during accumulation or when coal gas is unable to regular supply realizes the molten thermal requirements for dividing stove, simple in structure, at low cost, improve the molten service life for dividing stove, improve productivity.
Description
Technical field
Divide stove technical field the utility model is related to molten more particularly to a kind of divide stove with the molten of assisted combustion device.
Background technology
As Global Greenhouse Effect increasingly attracts attention, people also begin to be directed to how research reduces oxycarbide
Discharge.Metallurgy industry is the rich and influential family of oxycarbide discharge, and current mainstream iron-smelting process is blast furnace process, wherein sintering and coking
Etc. processes environmental pollution it is more serious.In this context, direct reduction iron making technique is developed, this technique can utilize full generation
The Iron Ore Powders of boundary's rich reserves and coal dust produce the direct reduced iron of high quality, eliminate coking process, from energy expenditure and
It is all very competitive compared to blast furnace process in terms of the burden caused by environment.
Direct reduction iron making technique be divided into reduction and it is molten in two steps, reduction process mainly has gas base directly reducing and the coal base straight
Reduction two ways is connect, at home and abroad there is ripe pilot plant at present.Molten operation break-down mainly has an electric smelting point and combustion gas is melted point
Two ways.
It is molten to divide stove raw material for direct reduced iron (DRI), into ellipsoid, divide molten in stove by heating fusing, ultimately generate iron
Water and slag.Combustion gas melts the fuel of point stove for low-heat value gas, and air and coal gas pass through after accumulation of heat, the mixed combustion in stove,
Temperature is up to 1600 DEG C or so in burner hearth.
There is the molten mode of heating that stove combustion system is divided to use regenerative chamber at present.It is molten to divide stove in rectangular configuration, it is molten to divide stove material
DRI is added in from feed end in stove, is prolonged molten point of furnace length direction and is set a certain number of heat-storage type burners.Divide stove due to adding in melt
DRI density it is small, can slowly float up to molten surface, as melt is from during feed end flow to discharge end, DRI is continuous
It is heated and melts by regenerative chamber burner, final slag iron generates layering since proportion is different, generates molten iron and slag liquid and is arranged from discharge end
Go out.
But since charging zone is not provided with burner, with a certain distance from heat-storage type burner has from charge door, direct reduced iron
Raw material adds in charging zone from feed end, be easy to cause solid accumulation, influences the melting rate of direct reduced iron, and then reduces to melt and divide stove
Yield.
When power outage occurs, there is certain gas volume supply to ensure to melt to divide in stove so that melt does not solidify, and needs
Want spare investment on generating unit larger or can not spare (such as voltage 10kV of coal gas air blower) and influence production.
If running into power outage a molten point stove inner melt is caused to solidify, it is molten that stove is divided to need overhaul, overhaul time 1-2
Month, not only reduce the molten operating rate for dividing stove, influence normally production, and the very high (200m of overhaul cost2It is molten to divide the overhaul of stove molten bath
Cost is up to more than 10,000,000).
Therefore, remain to ensure molten point when dividing the raw material accumulation of stove charging zone and gas supply failure to solve the problems, such as to melt
The heating temperature of stove a kind of new molten divides stove technology to ensure that production is normally carried out, with necessary provide.
Utility model content
In view of the above-mentioned problems, the utility model be intended to provide it is a kind of divide stove with the molten of assisted combustion device, to improve life
Yield ensures the molten normal production for dividing stove.
The utility model provides a kind of molten with assisted combustion device and divides stove, described molten stove to be divided to include molten bath, regenerative chamber
Burner and the assisted combustion device, described melt divide the molten bath of stove to include being sequentially connected the charging zone of setting, fusion zone and divide
From area, the side wall in the molten bath is equipped with the regenerative chamber burner and the assisted combustion device.
It is above-mentioned it is molten divide stove, the assisted combustion device includes one group of auxiliary burning nozzle.
It is above-mentioned it is molten divide stove, the auxiliary burning nozzle molten divides stove surrounding to arrange in pairs along described.
It is above-mentioned it is molten divide stove, the auxiliary burning nozzle is multipair, is respectively distributed to charging zone, fusion zone and Disengagement zone.
It is above-mentioned it is molten divide stove, per a pair of auxiliary burning nozzle it is described it is molten divide on stove be arranged symmetrically.
It is above-mentioned it is molten divide stove, the molten molten bath for dividing stove is rectangular configuration.
The molten of the utility model divides stove auxiliary combustion technique, can make the molten not molten direct reduced iron that stove charging zone is divided to accumulate
Material melts rapidly, does not influence the molten normal production for dividing stove, improves production efficiency.
The molten of this programme divides stove auxiliary combustion technique, to molten stove can be divided to provide energy when power outage occurs, make stove
Inner melt does not solidify, and is melted after service restoration and divides stove that can return to normal production rapidly.
The molten of this programme divides stove auxiliary combustion technique, and equipment is simple, and optional equipment standby generator sets are not required, save
Investment.
The molten of the utility model divides stove auxiliary combustion technique, it is possible to reduce the molten number for dividing stove overhaul extends to melt and divides stove
Service life reduces the production cost of product.
Description of the drawings
Fig. 1 divides furnace structure schematic diagram for the utility model with the molten of assisted combustion device.
Specific embodiment
Below in conjunction with drawings and examples, specific embodiment of the present utility model is described in more details, with
Just the advantages of better understood when the embodiment of the utility model and various aspects.However, specific implementations described below side
Formula and embodiment are for illustrative purposes only rather than the limitation to the utility model.
The utility model provides a kind of molten with assisted combustion device and divides stove, described molten stove to be divided to include molten bath, regenerative chamber
Burner and the assisted combustion device, described melt divide the molten bath of stove to include being sequentially connected the charging zone of setting, fusion zone and divide
From area, the side wall in the molten bath is equipped with the regenerative chamber burner and the assisted combustion device.The assisted combustion device
Including one group of auxiliary burning nozzle.
Specifically, the auxiliary combustion technique of the utility model, original heat-storage type burner heating on the basis of, by
A certain number of auxiliary burning nozzles are added to realize auxiliary combustion in molten point furnace sidewall.Auxiliary combustion fuel is natural gas, pyrolysis gas
And various coal gas, combustion-supporting gas are oxygen rich gas.
Auxiliary burning nozzle described in this programme divides stove molten bath surrounding to arrange in pairs along molten, according to technological requirement, can arrange 1-6 pairs
Auxiliary burning nozzle.
When auxiliary burning nozzle described in this programme is opened, combustion gas and oxygen-enriched air valve opening are added to melt by pipeline and divide stove
Interior, the mixed combustion under furnace high-temperature generates amount of heat, for material fusing or it is molten stove is divided to keep the temperature, the high temperature cigarette of generation
Gas is discharged by heat-accumulation combustor flue.
When packing phenomenon occurs for charging zone material, stop charging, open the combustion gas auxiliary burning nozzle positioned at charging zone side wall,
The heat that combustion gas and Air combustion with oxygen enrichment generate can make the material melting that charging zone is accumulated within the short time, be then shut off combustion gas
With oxygen-enriched air valve, charger is opened, recovers the molten normal operation for dividing stove.
When power outage occurs, molten to divide in stove not recycling, heat-storage type burner is out of service, and control is opened all
Auxiliary burning nozzle, to providing heat in stove so that melt will not solidify.The soaking time of this kind of auxiliary combustion up to 10 days or more,
It is molten to divide stove that return to normal production at once and after restoring electricity.
Auxiliary combustion technique described in the present embodiment divides stove molten bath for rectangular configuration as shown in Figure 1, melting, and it is long to prolong molten point furnace sidewall
It spends direction and arranges a certain number of regenerative chamber burners 1, auxiliary burning nozzle 2 is arranged in molten divide on stove surrounding side wall.In the present embodiment
One molten to divide stove to configure three pairs of auxiliary burning nozzles 2, is arranged in and molten divides 3 side wall of stove charging zone, 4 side wall of fusion zone and Disengagement zone 5
Side wall.Auxiliary burning nozzle 2 is connected by pipeline with combustion gas and oxygen rich gas respectively.During 3 solid accumulation of charging zone, charging zone 3 is opened
Auxiliary burning nozzle 2 on side wall, providing heat to material makes it melt rapidly.It is molten to divide stove fuel when power outage occurs
Normal supply, heat-storage type burner 1 is out of service, while opens three pairs of auxiliary burning nozzles 2, and heat is provided to the molten melt divided in stove
Amount, makes it not solidify.After restoring electricity, three pairs of auxiliary burning nozzles 2 are closed, open regenerative chamber burner 1, it is molten that stove is divided to recover at once
Normal production.
The molten auxiliary combustion technique for dividing stove that the present embodiment proposes when the material of charging zone generates accumulation, can guarantee molten
Divide stove normal operation；Or coal gas is when being unable to regular supply, realize it is molten divides the thermal requirements of stove, and spare huge power generation is not required
Unit reduces cost of investment, improves productivity.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And it is not intended to limit the embodiments.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among changes and variations that derived from are still in the scope of protection of the utility model.
Claims (6)
1. a kind of divide stove with the molten of assisted combustion device, which is characterized in that described melt divides stove to include molten bath, regenerative chamber burner
With the assisted combustion device, described melt divides the molten bath of stove to include the charging zone, fusion zone and Disengagement zone that are sequentially connected setting, institute
The side wall for stating molten bath is equipped with the regenerative chamber burner and the assisted combustion device.
2. according to claim 1 melt divides stove, which is characterized in that the assisted combustion device includes one group of auxiliary burning nozzle.
3. according to claim 2 melt divides stove, which is characterized in that the auxiliary burning nozzle divides stove surrounding paired along described melt
Arrangement.
4. molten according to Claims 2 or 3 divides stove, which is characterized in that the auxiliary burning nozzle is multipair, be respectively distributed to plus
Expect area, fusion zone and Disengagement zone.
Molten divide stove 5. according to claim 3, which is characterized in that per a pair of auxiliary burning nozzle it is described it is molten divide on stove be in
It is arranged symmetrically.
6. molten according to claim 1,2,3 or 5 divides stove, which is characterized in that the molten molten bath for dividing stove is rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481727.1U CN207452170U (en) | 2017-11-08 | 2017-11-08 | It is a kind of to divide stove with the molten of assisted combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481727.1U CN207452170U (en) | 2017-11-08 | 2017-11-08 | It is a kind of to divide stove with the molten of assisted combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207452170U true CN207452170U (en) | 2018-06-05 |
Family
ID=62254313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721481727.1U Expired - Fee Related CN207452170U (en) | 2017-11-08 | 2017-11-08 | It is a kind of to divide stove with the molten of assisted combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207452170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457722A (en) * | 2020-04-15 | 2020-07-28 | 中国恩菲工程技术有限公司 | Side-blown submerged combustion bath melting system for hazardous waste disposal |
-
2017
- 2017-11-08 CN CN201721481727.1U patent/CN207452170U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457722A (en) * | 2020-04-15 | 2020-07-28 | 中国恩菲工程技术有限公司 | Side-blown submerged combustion bath melting system for hazardous waste disposal |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20180605 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20180605 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |