CN207035833U - A kind of reverse-flow type energy-conservation ironmaking burner hearth - Google Patents

A kind of reverse-flow type energy-conservation ironmaking burner hearth Download PDF

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Publication number
CN207035833U
CN207035833U CN201720984313.4U CN201720984313U CN207035833U CN 207035833 U CN207035833 U CN 207035833U CN 201720984313 U CN201720984313 U CN 201720984313U CN 207035833 U CN207035833 U CN 207035833U
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CN
China
Prior art keywords
heater
flue
molten iron
ironmaking
reverse
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Expired - Fee Related
Application number
CN201720984313.4U
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Chinese (zh)
Inventor
胡永明
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Shenzhen Rong Aotong Network Information Technology Co
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Shenzhen Rong Aotong Network Information Technology Co
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Priority to CN201720984313.4U priority Critical patent/CN207035833U/en
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Publication of CN207035833U publication Critical patent/CN207035833U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of reverse-flow type to save ironmaking burner hearth, including a body of heater, and the body of heater is integrally inclined, and flame retardant coating is further fixed on inboard wall of furnace body, and flame retardant coating also is provided with its bottom;The lower end of the body of heater has opened up molten iron outlet and the slag notch of circumference, and slag notch is higher than molten iron outlet, circumferential slag net is additionally provided with molten iron exit, its effect is exactly to stop the material above molten iron;The top of body of heater is provided with a compartment, the inner space of the compartment and body of heater is isolated, coke combustion cell is provided with disengagement chamber bottom, one end connection high-temperature vapor access tube of disengagement chamber, the other end of disengagement chamber relatively-high temperature vapor access tube is provided with water-gas fairlead, and the water-gas fairlead connects with the inlet end of body of heater;Preheating mechanism is arranged with the periphery of body of heater, preheating mechanism has opened up the pre- hot-flow flue towards furnace interior, while also opened up the flue being connected with body of heater to accommodate the chuck of recirculated water in chuck.

Description

A kind of reverse-flow type energy-conservation ironmaking burner hearth
Technical field
Ironmaking technology field is the utility model is related to, specially a kind of reverse-flow type energy-conservation ironmaking burner hearth.
Background technology
As world's macroeconomic develops, expand for Steel demand and promote steel production vigorous, steel production is for original The demand of material and fuel is increasing, and cost is also being continuously increased, along with the increase of modern age blast furnace volume, for Raw materials for metallurgy and fuel it is also proposed higher requirement:Need that there is higher course of reaction intensity and post reaction strength, to protect It is obvious to demonstrate,prove the effect of blast furnace inner frame, ensures that coal gas direct motion and blast furnace process are smooth in blast furnace.
General process when blast furnace produces is to load iron ore, coke, slag making flux (lime stone) from furnace roof, from Preheated air is blown into positioned at air port of the iron-smelting furnace bottom along stove week, at high temperature coke (the blast furnace having also coal injection, again The auxiliary fuels such as oil, natural gas) in carbon with blast in air oxygen burning generation carbon monoxide and hydrogen, rise in stove During remove iron ore in oxygen, so as to reduce to obtain iron.The iron-smelting furnace chamber structure of prior art is excessively complicated, Er Qiegong Can be excessively single, the substantial amounts of energy can be wasted during use, does not meet the related request of energy-saving and emission-reduction.
Utility model content
The purpose of this utility model is to provide a kind of reverse-flow type energy-conservation ironmaking burner hearth, to solve to carry in above-mentioned background technology The problem of going out.
To achieve the above object, the utility model provides following technical scheme:
A kind of reverse-flow type energy-conservation ironmaking burner hearth, including a body of heater, the body of heater is integrally inclined, range of tilt angles Between 3~5 °, flame retardant coating is further fixed on inboard wall of furnace body, flame retardant coating also is provided with its bottom;Open the lower end of the body of heater If circumferential molten iron outlet and slag notch, and slag notch is higher than molten iron outlet, is additionally provided with molten iron exit circumferential Slag net, its effect is exactly to stop the material above molten iron;The top of body of heater is provided with a compartment, the compartment and body of heater Inner space is isolated, and coke combustion cell is provided with disengagement chamber bottom, one end connection high-temperature vapor access tube of disengagement chamber, is divided The other end from chamber relatively-high temperature vapor access tube is provided with the inlet end of water-gas fairlead, the water-gas fairlead and body of heater Connection;Preheating mechanism is arranged with the periphery of body of heater, preheating mechanism has been opened up in chuck and led to accommodate the chuck of recirculated water The pre- hot-flow flue of furnace interior, while also opened up the flue being connected with body of heater.
As the further technical scheme of the utility model, pre- hot-flow flue includes upper air duct and lower air duct, and flue includes Left flue and right flue, wherein, the joint of upper air duct and left flue, which is provided with, to be used to control both and upper of furnace body space break-make First partition, the joint of lower air duct and right flue is provided with the second partition for being used for controlling both with slag net break-make.
As the further technical scheme of the utility model, the end of flue and right flue is provided with air-introduced machine.
As the further technical scheme of the utility model, described water-gas fairlead connects with upper air duct.
Compared with prior art, the utility model is enough preheated in advance by the gas and can of pre- hot-flow flue, is not only saved The energy, and improve the efficiency of reaction, smog caused by reaction is discharged eventually through flue in body of heater, and temperature is higher Smog in discharge process, its heat can also be absorbed by the recirculated water in chuck, further reduce the waste of heat. In the course of work, the waste heat of body of heater can carry out sufficient continuous heating and insulation with STRENGTH ON COKE combustion cell so that in production water coal The energy needed during gas greatly reduces, and the water-gas produced mix external air played into body of heater interior energy it is extraordinary Combustion-supporting effect, save the usage amount of fire coal.
Brief description of the drawings
Fig. 1 is a kind of structural representation of reverse-flow type energy-conservation ironmaking burner hearth of the utility model.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of reverse-flow type energy-conservation ironmaking burner hearth, including a body of heater 5, the body of heater 5 is overall inclined, Range of tilt angles is further fixed on flame retardant coating 6 between 3~5 ° on the inwall of body of heater 5, and flame retardant coating also is provided with its bottom;When When molten iron and material in body of heater 5 be present, because the density of molten iron is greater than the density of material, therefore, the material not being completely melt Swim in above molten iron, molten iron can be gathered in the lowest part of body of heater 5;The lower end of the body of heater 5 has opened up the molten iron of circumference Outlet 9 and slag notch 7, and slag notch 7 is higher than molten iron outlet 9, and circumferential slag net 8 is additionally provided with molten iron outlet 9, its Effect is exactly to stop the material above molten iron, certainly, in use, the molten iron in body of heater 5 is highly higher than the minimum of slag net 8 Place, while the molten iron height in body of heater 5 will be less than the highest point of slag net 8, can so play separation of material and molten iron Effect;The top of body of heater 5 is provided with a compartment 16, and the inner space of the compartment 16 and body of heater 5 is isolated, at the bottom of disengagement chamber 16 End is provided with coke combustion cell 16, and one end connection high-temperature vapor access tube 18 of disengagement chamber 16, the relatively-high temperature water of disengagement chamber 16 steams The other end of gas access tube 18 is provided with water-gas fairlead 15, and the water-gas fairlead 15 connects with the inlet end of body of heater 5.In work During work, the waste heat of body of heater 5 can carry out sufficient continuous heating and insulation with STRENGTH ON COKE combustion cell 16 so that in production water coal The energy needed during gas greatly reduces, and the water-gas produced mix external air played into body of heater interior energy it is extraordinary Combustion-supporting effect, save the usage amount of fire coal.
Preheating mechanism is arranged with the periphery of body of heater 5, the preheating mechanism in the embodiment is the chuck 3 for accommodating recirculated water, And the chuck positioned at the side of body of heater 5 is merely illustrated in order to briefly explain, in figure, the chuck 3 mainly absorbs the heat in body of heater 5 Amount, while preheated to entering oxygen/combustion gas in body of heater 5, to reach highest efficiency of combustion.
Therefore, having opened up the pre- hot-flow flue towards inside body of heater 5 in chuck 3, while also open up and be connected with body of heater 5 Flue, the pre- hot-flow flue in the embodiment includes upper air duct 2 and lower air duct 14, and flue includes left flue 12 and right flue 11, Wherein, the joint of upper air duct 2 and left flue 12 is provided with the first partition for being used for controlling both with the upper space break-make of body of heater 5 13, the joint of lower air duct 14 and right flue 11 is provided with the second partition 4 for being used for controlling both with the break-make of slag net 8, meanwhile, it is left The end of flue 12 and right flue 11 is additionally provided with air-introduced machine 1.
In preferred embodiment of the present utility model, described water-gas fairlead 15 connects with upper air duct 2.
When first partition 13 separates upper air duct 2, second partition 4 separates right flue 11, now, left flue 12 and body of heater 5 upper space connection, lower air duct 14 are connected with slag net 8 and (also connected with the lower space of body of heater 5), now, oxygen/combustion The moving line of gas is:14 → slag net of lower air duct, 8 → body of heater 5 → left 12 → air-introduced machine of flue →, due to oxygen/combustion now Gas is entered from bottom to top in body of heater 5 at slag net 8, and therefore, oxygen/combustion gas of entrance can be carried out to the material above molten iron Certain stirs, and then improves the extent of reaction of material.
On the contrary, when first partition 13 separates left flue 12, second partition 12 separates lower air duct 14, now, upper air duct 2 Being connected with the upper space of body of heater 5, right flue 11 is connected with slag net 8 and (also connected with the lower space of body of heater 5), now, The moving line of oxygen/combustion gas is:2 → body of heater of upper air duct l → slag net 8 → 11 → air-introduced machine of right flue 1, due to oxygen now Gas/combustion gas is to pass through the material in body of heater 5, therefore, compared to having the longer reaction time for the former, is worked Personnel can be actually needed two kinds of different working conditions of switching according to different.
Finally, be also provided with the bottom of chuck 3 with the molten iron passages 14 that are connected of the molten iron of lowest part outlet 9, chuck 3 with Flame retardant coating is additionally provided between molten iron passage 14, while flame retardant coating is further fixed in the outside of molten iron outlet 9 of highest point.Molten iron is flowing During molten iron passage 14, its heat further can also be absorbed by the recirculated water in chuck 3, effectively improve the profit of heat With rate.Iron-smelting furnace chamber structure of the present utility model is simple, easy to use, can effectively improve the utilization rate of heat, has very Good practicality.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition State concrete meaning of the term in the utility model.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge Various changes can be made.

Claims (4)

1. a kind of reverse-flow type energy-conservation ironmaking burner hearth, including a body of heater, the body of heater is integrally inclined, and range of tilt angles exists Between 3~5 °, flame retardant coating is further fixed on inboard wall of furnace body, flame retardant coating also is provided with its bottom;Characterized in that, the body of heater Lower end opened up circumference molten iron outlet and slag notch, and slag notch be higher than molten iron outlet, also set in molten iron exit There is circumferential slag net, its effect is exactly to stop the material above molten iron;The top of body of heater is provided with a compartment, the compartment It is isolated with the inner space of body of heater, coke combustion cell, one end connection high-temperature vapor of disengagement chamber is provided with disengagement chamber bottom Access tube, the other end of disengagement chamber relatively-high temperature vapor access tube are provided with water-gas fairlead, the water-gas fairlead and stove The inlet end connection of body;Preheating mechanism is arranged with the periphery of body of heater, preheating mechanism is accommodates the chuck of recirculated water, in chuck The pre- hot-flow flue towards furnace interior has been opened up, while has also opened up the flue being connected with body of heater.
2. a kind of reverse-flow type energy-conservation ironmaking burner hearth according to claim 1, it is characterised in that pre- hot-flow flue includes upper air duct And lower air duct, flue include left flue and right flue, wherein, the joint of upper air duct and left flue be provided be used to controlling both with The joint of the first partition of upper of furnace body space break-make, lower air duct and right flue, which is provided with, to be used to control both and slag net break-make Second partition.
A kind of 3. reverse-flow type energy-conservation ironmaking burner hearth according to claim 2, it is characterised in that the end of left flue and right flue End is provided with air-introduced machine.
4. a kind of reverse-flow type energy-conservation ironmaking burner hearth according to claim 2, it is characterised in that described upper air duct and water coal Gas fairlead connects.
CN201720984313.4U 2017-08-08 2017-08-08 A kind of reverse-flow type energy-conservation ironmaking burner hearth Expired - Fee Related CN207035833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720984313.4U CN207035833U (en) 2017-08-08 2017-08-08 A kind of reverse-flow type energy-conservation ironmaking burner hearth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720984313.4U CN207035833U (en) 2017-08-08 2017-08-08 A kind of reverse-flow type energy-conservation ironmaking burner hearth

Publications (1)

Publication Number Publication Date
CN207035833U true CN207035833U (en) 2018-02-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720984313.4U Expired - Fee Related CN207035833U (en) 2017-08-08 2017-08-08 A kind of reverse-flow type energy-conservation ironmaking burner hearth

Country Status (1)

Country Link
CN (1) CN207035833U (en)

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180223

Termination date: 20200808

CF01 Termination of patent right due to non-payment of annual fee