CN204897955U - Melt branch stove - Google Patents
Melt branch stove Download PDFInfo
- Publication number
- CN204897955U CN204897955U CN201520603207.8U CN201520603207U CN204897955U CN 204897955 U CN204897955 U CN 204897955U CN 201520603207 U CN201520603207 U CN 201520603207U CN 204897955 U CN204897955 U CN 204897955U
- Authority
- CN
- China
- Prior art keywords
- heat
- molten
- molten point
- regenerator
- storage type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Air Supply (AREA)
Abstract
The utility model discloses a melt branch stove, melt branch stove includes: the melt branch stove body has the branch of melting space in it, melt branch space bottom and inject the molten bath, melts the branch space and forms intake zone, melt section, disengagement zone and ejection of compact district in proper order along the melt flow direction, and the lateral wall of intake zone is equipped with the feed inlet, and the lateral wall in ejection of compact district is equipped with discharge gate and slag notch, first heat accumulation formula combustor, melt section correspondence set up at least a pair of first heat accumulation formula combustor, whenever establish on the relative lateral wall of melt branch stove body first heat accumulation formula combustor, and every first heat accumulation formula combustor includes nozzle, gas cinder pocket, air cinder pocket, gas regenerator and air regenerator, second heat accumulation formula combustor, disengagement zone correspondence set up at least a pair of second heat accumulation formula combustor, whenever establish on the relative lateral wall of melt branch stove body second heat accumulation formula combustor. This melt branch stove can realize waiting to melt the continuous processing of branch material to the difficult jam of heat accumulator of regenerator.
Description
Technical field
The utility model relates to a kind of molten point stove.
Background technology
Usually blast furnace is adopted to realize the separation of slag iron at present, blast furnace is a kind of upright type of furnace, need coke as bin, keep airway patency in stove, the heat energy produced by coke burning, the reduced iron that upper reduction zone generates is fused into liquid, drop onto cupola well, in cupola well, realize slag be separated with molten metal, be accumulated to a certain amount of after, discharge from slag iron mouth, obtain molten metal and slag.But this technology needs to use coke as fuel and stock column, and coke making process link can cause serious environmental pollution, and it is higher to the requirement of strength entering stove material, as pellet strength is lower, permeability of stock column can be caused in decline process to be deteriorated, affect making full use of of smooth operation of furnace and coal gas chemical energy, this equipment poor controllability simultaneously, and belong to airtight melting, enter stove from raw material to flow out to molten metal, reaction times is longer, can not process continuously, secondly adaptability to raw material is poor, be only applicable to the smelting of high grade iron concentrate, the difficult ore dressing maximum to reserves, schreyerite, complex ores etc. can not use, this equipment energy consumption is higher in addition, efficiency of energy utilization is low, high fume temperature in stove, need to carry out energy conversion by the form of waste heat boiler and generating, and transformation efficiency≤30%.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of molten point stove, and this molten point stove can realize the continuous process of fusion point of material, and the heat storage of regenerator not easily blocks.
In one of the present utility model, the utility model proposes a kind of molten point stove, according to embodiment of the present utility model, a described molten point stove comprises:
Molten point furnace body, in described molten point furnace body, there is molten point space, a described molten point space bottom limits molten bath, described molten point space forms intake zone, melting area, disengaging zone and discharge zone successively along melt flow direction, the sidewall of described intake zone is provided with opening for feed, and the sidewall of described discharge zone is provided with discharge port and slag notch;
First heat-storage type burner, described melting area correspondence arranges the first heat-storage type burner described at least one pair of, often pair of described first heat-storage type burner is located in the opposing sidewalls of described molten point furnace body, the air regenerator that each described first heat-storage type burner comprises nozzle, combustion gas slag pocket, air slag pocket, the regenerator gas room be communicated with described combustion gas slag pocket and is communicated with described air slag pocket; And
Second heat-storage type burner, described disengaging zone correspondence arranges the second heat-storage type burner described at least one pair of, and often pair of described second heat-storage type burner is located in the opposing sidewalls of described molten point furnace body.
Thus, the continuous process of fusion point of material can be realized according to molten point of stove of the utility model embodiment, and the heat storage of regenerator burner not easily blocks, simultaneously molten metal and slag separation efficiency is higher and energy consumption is lower.
In addition, following additional technical characteristic can also be had according to the molten point stove of the utility model above-described embodiment:
Optionally, described regenerator gas room is communicated with described nozzle by the first gas channel with described combustion gas slag pocket, described air regenerator is communicated with described nozzle by the second gas channel with described air slag pocket, when described first heat-storage type burner is in smoke evacuation state, on the circulating direction of flue gas, described air slag pocket is positioned at the upstream of described air regenerator, and described combustion gas slag pocket is positioned at the upstream of described regenerator gas room.Thus, the blocking of heat storage can effectively be reduced.
Optionally, on from described nozzle to the direction of described combustion gas slag pocket, the circulation area of described first gas channel increases gradually, and on from described nozzle to the direction of described air slag pocket, the circulation area of described second gas channel increases gradually.Concrete, the first gas channel suddenly increases to the transition section of combustion gas slag pocket, and the second gas channel suddenly increases to the transition section of air slag pocket.Thus, the dust in flue gas can be removed, thus reduce the blocking of heat storage further.
Optionally, have the heat storage piled up by checker brick respectively in described regenerator gas room and described air regenerator, wherein, the aperture of described checker brick is 10 ~ 100 millimeters.Thus, while significantly improving heat storage accumulation of heat effect, reduce the blocking of heat storage checker brick further.
Optionally, the described molten point furnace body at described molten bath place is piled up by the erosion resistant refractory brick of multilayer and is formed, and the refractory brick periphery at described molten bath place is provided with steel furnace shell, and be provided with refrigerating unit between refractory brick at described molten bath place and described steel furnace shell, wherein, cooling stave is provided with, the refractory brick bottom described molten bath and be provided with water cooling tube or forced air cooled tube between described steel furnace shell between the refractory brick and described steel furnace shell of described molten bath side-walls.Thus, the life-span of molten point stove can be improved further.
Optionally, separately by having, against gas transmission is washed away, refractory brick that is high temperature resistant and heat-insulating property is piled up and formed for the front end wall being positioned at the part on the top in described molten bath of described molten point of furnace body, back-end wall, side wall and furnace roof.Thus, the life-span of molten point stove can be improved further.
Optionally, the front end wall being positioned at the part on the top in described molten bath of described molten point furnace body is arc headwall.Thus, the sealing to opening for feed can be realized.
Optionally, a described molten point stove comprises further: feed bin; And feeding device, described feeding device is connected with described opening for feed with described feed bin respectively.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the plan structure figure of the molten point stove according to the utility model embodiment;
Fig. 2 is the main TV structure figure of the molten point stove according to another embodiment of the utility model;
Fig. 3 is the main TV structure figure of the molten point stove according to another embodiment of the utility model;
Fig. 4 is the main TV structure figure of the molten point stove according to another embodiment of the utility model.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In one of the present utility model, the utility model proposes a kind of molten point stove.According to embodiment of the present utility model, this molten point stove comprises: molten point furnace body, in described molten point furnace body, there is molten point space, a described molten point space bottom limits molten bath, described molten point space forms intake zone, melting area, disengaging zone and discharge zone successively along melt flow direction, described intake zone is positioned at one end of described molten point furnace body, described discharge zone is positioned at the other end of described molten point furnace body, the sidewall of described intake zone is provided with opening for feed, and the sidewall of described discharge zone is provided with discharge port and slag notch; First heat-storage type burner, described melting area correspondence arranges the first heat-storage type burner described at least one pair of, often pair of described first heat-storage type burner is located in the opposing sidewalls of described molten point furnace body, the air regenerator that each described first heat-storage type burner comprises nozzle, combustion gas slag pocket, air slag pocket, the regenerator gas room be communicated with described combustion gas slag pocket and is communicated with described air slag pocket; And second heat-storage type burner, described disengaging zone correspondence arranges the second heat-storage type burner described at least one pair of, and often pair of described second heat-storage type burner is located in the opposing sidewalls of described molten point furnace body.Contriver finds, by arranging heat-storage type burner on molten point furnace body, a molten point space is heated, fusion point of material can be made to be added hot melt and divide during regional in superfusion point space successively, and molten metal can be realized be separated with the thorough of slag by arranging disengaging zone, when molten metal and slag gather in molten bath a certain amount of after can discharge from discharge port and slag notch respectively, thus the continuous process making this molten point of stove can realize fusion point of material, simultaneously owing to adopting heat-storage type burner to heat a molten point space, can realize the accurate temperature controlling melting point space and make uniform distribution of temperature field in molten point space, thus the molten component efficiency of fusion point of material can be significantly improved, and by arranging the heat-storage type burner with combustion gas slag pocket and air slag pocket on the sidewall of melting area, in smoke evacuation process, make to be entrained in dust in high-temperature flue gas and semi-melting slag separated through slag pocket, and the flue gas after sediment enters regenerator carries out accumulation of heat, thus effectively reduce the blocking of heat storage in regenerator, reduce maintenance cost, and then raising thermo-efficiency, and by employing first heat-storage type burner and the second heat-storage type burner, make it possible to effectively utilize the heat storage in heat-storage type burner to carry out waste heat recovery to high-temperature flue gas, make full use of this part of waste heat and thermal pretreatment is carried out to burning material (combustion gas and air), thus energy consumption of unit product cost can be reduced, and heat-storage type burner gained flue gas is low temperature, secondly molten point stove of the present utility model to the material strength of fusion point of material and granularity requirements lower, and compare with stock column as fuel with employing coke, the utility model can not cause serious environmental pollution, the utility model goes for low grade ore in addition, the molten divisional processing of difficult ore dressing and complex ore etc.
A molten point stove below with reference to Fig. 1-3 pairs of the utility model embodiments is described in detail.According to embodiment of the present utility model, this molten point stove comprises:
Molten point furnace body 100: according to embodiment of the present utility model, in molten point furnace body 100, there is molten point space 10, molten bath 11 is limited bottom molten point space 10, molten point space 10 forms intake zone 12 successively along melt flow direction, melting area 13, disengaging zone 14 and discharge zone 15, intake zone 12 is positioned at one end of molten point furnace body 100, discharge zone 15 is positioned at the other end of molten point furnace body 100, the sidewall of intake zone 12 is provided with opening for feed 101, the sidewall of discharge zone 15 is provided with discharge port 102 and slag notch 103, and in the height direction, slag notch 103 is positioned at the top of discharge port 102.According to specific embodiment of the utility model, molten bath 11 can adopt the shallow pool structure of rectangle.Thus, fusion point of material can be made to be pellicular water tiling exhibition state in molten bath, thus the molten component efficiency of material can be significantly improved.
According to an embodiment of the present utility model, the molten point furnace body 100 at molten bath 11 place can be piled up by the erosion resistant refractory brick of multilayer and form, and such as refractory brick can be carbon composite brick, microporous corundum brick and schungite brick fuel etc.Thus, the erosion-resisting characteristics in molten bath can be significantly improved, thus avoid melt to the damage in molten bath, and then improve the work-ing life of molten point stove.
According to another embodiment of the present utility model, the refractory brick periphery at molten bath 11 place can be provided with steel furnace shell 16.Thus, the stable of body of heater can effectively be kept.According to another embodiment of the present utility model, refrigerating unit 17 can be provided with between the refractory brick and steel furnace shell 16 at molten bath 11 place.Thus, by arranging refrigerating unit between molten bath refractory brick and steel furnace shell, the resistance to elevated temperatures of refractory brick can be significantly improved, thus improve the work-ing life of molten point stove further.According to specific embodiment of the utility model, cooling stave can be provided with between the refractory brick and steel furnace shell 16 of molten bath 11 side-walls, those skilled in the art can select the material of cooling stave according to actual needs, such as, can adopt the cooling stave of cast steel, cast iron or copper material.According to another specific embodiment of the present utility model, the refractory brick bottom molten bath 11 and water cooling tube or forced air cooled tube can be provided with between steel furnace shell 16.Thus, the work-ing life of molten point stove can be improved further.
According to another embodiment of the present utility model, the front end wall 18 being positioned at the part on the top in molten bath 11, back-end wall 19, the side wall 20 of molten point of furnace body 100 and furnace roof 21 can separately by having, against gas transmission be washed away, refractory brick that is high temperature resistant and heat-insulating property is piled up and formed, such as, can turn and the refractory brick such as electric smelting Semi bonded magnesia chrome brick for Mg-Al spinel brick, mullite insulating brick, high-purity mullite.Thus, the work-ing life of molten point stove can be improved further.According to specific embodiment of the utility model, the front end wall 18 being positioned at the part on the top in molten bath 11 of molten point furnace body 100 can be arc tips wall.Thus, the effect of sealing can be played to opening for feed.
According to another embodiment of the present utility model, opening for feed 101 can be arranged on the bath wall of front end wall lower end, and discharge port 102 and slag notch 103 can be positioned on the bath wall of the lower end of back-end wall.Concrete, discharge port and slag notch can adopt stemming to block, when the molten metal of discharge zone in molten bath and slag gather a certain amount of after, discharging machine is adopted to drill discharge port and the slag notch of stemming blocking, with stemming, discharge port and slag notch are blocked again after discharging completes, the metal melt obtained is sent into iron foundry (shop) casting or is sent into steelshop steel-making, and slag may be used for producing the material of construction such as cement.
First heat-storage type burner 200: according to embodiment of the present utility model, comprise multiple first heat-storage type burner, multiple first heat-storage type burner is located on the sidewall of molten point furnace body 100 respectively, and melting area 13 correspondence arranges at least one pair of first heat-storage type burner, often pair of first heat-storage type burner is located in the opposing sidewalls of molten point furnace body 100, namely multiple first heat-storage type burner is arranged on the side wall of molten point furnace body along melt flow direction, and often pair of heat-storage type burner is oppositely arranged on side wall.According to an embodiment of the present utility model, each first heat-storage type burner 200 comprises nozzle 22, combustion gas slag pocket 23, air slag pocket 24, regenerator gas room 25 and air regenerator 26, according to specific embodiment of the utility model, combustion gas slag pocket 23 is connected with regenerator gas room 25, air slag pocket 24 is connected with air regenerator 26, regenerator gas room 25 is communicated with nozzle 22 by the first airflow path 27 with combustion gas slag pocket 23, air regenerator 26 is communicated with nozzle 22 by the second gas channel 28 with air slag pocket 24, when the first heat-storage type burner is in smoke evacuation state, on the circulating direction of flue gas, air slag pocket 24 is positioned at the upstream of air regenerator 26, combustion gas slag pocket 23 is positioned at the upstream of regenerator gas room 25.Contriver finds, by arranging first heat-storage type burner with combustion gas slag pocket and air slag pocket on the sidewall of melting area, in smoke evacuation process, make to be entrained in dust in high-temperature flue gas and semi-melting slag separated through slag pocket, and the flue gas after sediment enters regenerator carries out accumulation of heat, thus effectively reduce the blocking of heat storage in regenerator, reduce maintenance cost, and then improve thermo-efficiency.
According to another embodiment of the present utility model, regenerator gas room and air regenerator are by the cavity configuration of refractory material laying, and have the heat storage piled up by checker brick respectively in regenerator gas room and air regenerator.According to another embodiment of the present utility model, the aperture of checker brick is also not particularly limited, and those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, the aperture of checker brick can be 10 ~ 100 millimeters.Contriver find, if checker brick aperture is excessive, make heat storage accumulation of heat poor effect, and if checker brick aperture is too low, easily cause the blocking of heat storage checker brick.Thus, selection aperture is the checker brick of 10 ~ 100 millimeters, can ensure the blocking reducing heat storage while heat storage has higher accumulation of heat effect.
According to another embodiment of the present utility model, regenerator gas indoor can be divided into the first high-temperature heat accumulation district and the first Low Temperature Storage hot-zone from top to bottom, the second high-temperature heat accumulation district and the second Low Temperature Storage hot-zone can be divided into from top to bottom in air regenerator, and the first high-temperature heat accumulation district is different with the material of the heat storage of the first Low Temperature Storage hot-zone, the second high-temperature heat accumulation district is different with the material of the second Low Temperature Storage hot-zone.Concrete, the temperature in the first high-temperature heat accumulation district and the second high-temperature heat accumulation district can be 1000 ~ 1600 DEG C, and the temperature of the first Low Temperature Storage hot-zone and the second Low Temperature Storage hot-zone can be 100 ~ 1000 DEG C.
According to another embodiment of the present utility model, air slag pocket and combustion gas slag pocket can be by the cavity configuration of laying fireproof bricks respectively, and the hypomere of cavity configuration is all in capitate structure.Thus, may be used for collecting the dust granules in flue gas, and after a molten point stove runs for some time, open air slag pocket and combustion gas slag pocket lower end valve respectively, dust is discharged combustion gas slag pocket and air slag pocket.
According to another embodiment of the present utility model, combustion gas slag pocket can be arranged near molten point furnace body, and between combustion gas slag pocket and regenerator gas room, there is the partition wall be built into by refractory brick and partition wall has opening, to make the flue gas after combustion gas slag pocket sediment enter regenerator gas room carry out regeneration treatment, air slag pocket is arranged away from molten point furnace body, and between air slag pocket and air regenerator, there is the partition wall be built into by refractory brick and partition wall also has opening, to make the flue gas after air slag pocket sediment enter air honeycomb regenerator carry out regeneration treatment.Concrete, multiple first heat-storage type burner commutation can adopt centralized dispersal reversing, also can adopt individual reversal.
Such as, carrying out in treating processes to fusion point of material, combustion gas is supplied respectively and air combustion is heat supply in molten point space by the gas inlet of in often pair of first heat-storage type burner and fuel gas inlet, and the high-temperature flue gas produced in molten point space enters combustion gas slag pocket through the first gas channel of another the first heat-storage type burner, air slag pocket is entered through the second entraining air stream passage, high-temperature flue gas is respectively by after combustion gas slag pocket and air slag pocket sediment, the dust wherein carried secretly and semi-melting slag separated, flue gas after separation is discharged respectively behind regenerator gas room and air regenerator accumulation of heat, when after regenerator accumulation of heat to a certain extent, cut off and supply combustion gas and air in previous first heat-storage type burner, and adopt low-temperature flue gas to purge regenerator gas room, and in another heat-storage type burner, supply combustion gas and air, thus preheating is carried out in the accumulation of heat making combustion gas and air make full use of regenerator, and the high-temperature flue gas produced is discharged after previous first heat-storage type burner accumulation of heat, and two the first heat-storage type burners are used alternatingly.
According to another embodiment of the present utility model, on from nozzle to the direction of combustion gas slag pocket, the circulation area of the first gas passage increases gradually, and on from nozzle to the direction of air slag pocket, the circulation area of the second gas passage increases gradually.Concrete, the first gas channel suddenly increases to the transition section of combustion gas slag pocket, and the second gas channel suddenly increases to the transition section of air slag pocket.Contriver find, high velocity air flow section increases suddenly, and gas velocity can be caused to reduce, and high velocity air speed reduction after, in air-flow dust especially some larger particles dust can separate from air-flow.Thus, the dust in flue gas and semi-melting slag can be made can naturally to drop in combustion gas slag pocket and air slag pocket by decoration form of the present utility model, and flue gas after slag pocket again through regenerator gas room and air regenerator by heat storage in regenerator heat storage, discharge from regenerator lower pipeline, funnel temperature controls below 300 DEG C.
Second heat-storage type burner 300: according to embodiment of the present utility model, comprise multiple second heat-storage type burner, multiple second heat-storage type burner is located on the sidewall of molten point furnace body 100 respectively, and in disengaging zone 14 correspondence, at least one pair of second heat-storage type burner is set, often pair of second heat-storage type burner is located in the opposing sidewalls of molten point furnace body 100, namely multiple second heat-storage type burner is arranged on the side wall of molten point furnace body along melt flow direction, and often pair of second heat-storage type burner is oppositely arranged on side wall.
According to an embodiment of the present utility model, second heat-storage type burner can be made up of regenerator gas room, air regenerator and nozzle, air regenerator and regenerator gas room are made up of adjacent two brick structures spaces, vault is built at top by laying bricks or stones, side wall adopts laying fireproof bricks, outside is the fixing steel construction of shaped steel and steel plate composition, and wherein multiple second heat-storage type burner commutation can adopt centralized dispersal reversing, also can adopt individual reversal.
According to another embodiment of the present utility model, before the first heat-storage type burner and the second heat-storage type burner smoke evacuation state are opened, first the supply of combustion gas and air is cut off, then low-temperature flue gas is utilized to carry out blowback to regenerator gas room, the remaining combustion gas in regenerator gas room is blown in molten point space burn, thus raising fuel availability, when preventing from discharging fume, high-temperature flue gas and remaining combustion gas mixing produce and explode simultaneously.
According to another embodiment of the present utility model, the temperature of melting area is made to be 1000 ~ 1800 degrees Celsius by arranging the first heat-storage type burner in melting area, make the temperature of disengaging zone lower than the temperature of melting area 100 ~ 200 degrees Celsius by arranging the second heat-storage type burner in disengaging zone, preferably, make the temperature of melting area be 1450 ~ 1700 degrees Celsius by arranging the first heat-storage type burner in melting area, make the temperature of disengaging zone lower than the temperature of melting area 100 ~ 200 degrees Celsius by arranging the second heat-storage type burner in disengaging zone.Thus, the separation efficiency of molten metal and slag can be improved further.
According to another embodiment of the present utility model, in often pair of first heat-storage type burner and the second heat-storage type burner, the alt time of alternative supply burning material is 1 ~ 20 minute.Thus, the heating efficiency of heat-storage type burner can be significantly improved.
Concrete, the flue-gas temperature of discharging through the first heat-storage type burner and the second heat-storage type burner controls below 300 DEG C, and the fuel gas temperature after the preheating of regenerator gas room is more than 1000 DEG C, is more than 1200 DEG C by the air themperature after air regenerator preheating.
Molten point stove according to the utility model embodiment heats a molten point space by arranging heat-storage type burner on molten point furnace body, can make fusion point of material successively through superfusion point space in regional time by heat fused, and molten metal can be realized be separated with the thorough of slag by arranging disengaging zone, when molten metal and slag gather in molten bath a certain amount of after can discharge from discharge port and slag notch respectively, thus the continuous process making this molten point of stove can realize fusion point of material, simultaneously owing to adopting heat-storage type burner to heat a molten point space, can realize the accurate temperature controlling melting point space and make uniform distribution of temperature field in molten point space, thus the molten component efficiency of fusion point of material can be significantly improved, and by arranging the heat-storage type burner with combustion gas slag pocket and air slag pocket on the sidewall of melting area, in smoke evacuation process, make to be entrained in dust in high-temperature flue gas and semi-melting slag separated through slag pocket, and the flue gas after sediment enters regenerator carries out accumulation of heat, thus effectively reduce the blocking of heat storage in regenerator, reduce maintenance cost, and then raising thermo-efficiency, and by employing first heat-storage type burner and the second heat-storage type burner, make it possible to effectively utilize the heat storage in heat-storage type burner to carry out waste heat recovery to high-temperature flue gas, make full use of this part of waste heat and thermal pretreatment is carried out to burning material (combustion gas and air), thus energy consumption of unit product cost can be reduced, and heat-storage type burner gained flue gas is low temperature, secondly molten point stove of the present utility model to the material strength of fusion point of material and granularity requirements lower, and compare with stock column as fuel with employing coke, the utility model can not cause serious environmental pollution, the utility model goes for low grade ore in addition, the molten divisional processing of difficult ore dressing and complex ore etc.
With reference to figure 4, the molten point stove according to the utility model embodiment comprises further:
Feed bin 400: according to embodiment of the present utility model, feed bin 400 is suitable for storing fusion point of material.
Feeding device 500: according to embodiment of the present utility model, feeding device 500 is connected with opening for feed 101 with feed bin 400 respectively, and is suitable for being supplied to by fusion point of material in molten point space.Concrete, fusion point of material is delivered in the high hopper above opening for feed by hot transfer roller, then be discharged in feeding device (charging machine) by high hopper, feeding device constantly carries out mechanical reciprocation, thus being supplied to fusion point of material continuous uniform in molten point stove, realize continuous uniform feed.
Conveniently understand, below the method for the molten point stove process fusion point of material adopting the utility model embodiment is described in detail.According to specific embodiment of the utility model, the method comprises: respectively to alternative supply burning material in the first heat-storage type burner often pair described and described second heat-storage type burner, to heat a described molten point space, wherein, described burning material comprises combustion gas and air; And described fusion point of material is supplied to described molten point space from the described opening for feed of described molten point furnace body one end, to make described fusion point of material carry out melting and separating treatment through described intake zone, melting area, disengaging zone and discharge zone successively, thus obtain molten metal and slag, and the described discharge port of described molten metal from the described molten point furnace body the other end is discharged, described slag is discharged from described slag notch.Thus, by adopting an above-mentioned molten point of stove to process fusion point of material, the continuous process of fusion point of material can be realized, and the heat storage of regenerator burner not easily blocks, simultaneously technology liquation and slag separation efficiency is higher and energy consumption is lower.It should be noted that, the above-mentioned method being equally applicable to this process fusion point of material for the feature and advantage described by molten point stove, repeats no more herein.
According to an embodiment of the present utility model, in often pair of first heat-storage type burner and the second heat-storage type burner, the alt time of alternative supply burning material is 1 ~ 20 minute.Thus, the heating efficiency of heat-storage type burner can be significantly improved.
According to another embodiment of the present utility model, the temperature of melting area is made to be 1000 ~ 1800 degrees Celsius by arranging the first heat-storage type burner in melting area, make the temperature of disengaging zone lower than the temperature of melting area 100 ~ 200 degrees Celsius by arranging the second heat-storage type burner in disengaging zone, preferably, make the temperature of melting area be 1450 ~ 1700 degrees Celsius by arranging the first heat-storage type burner in melting area, make the temperature of disengaging zone lower than the temperature of melting area 100 ~ 200 degrees Celsius by arranging the second heat-storage type burner in disengaging zone.Thus, the separation efficiency of molten metal and slag can be improved further.
Below with reference to specific embodiment, be described the utility model, it should be noted that, these embodiments are only descriptive, and limit the utility model never in any form.
Embodiment
Direct reduction unit being produced the direct-reduced iron (DRI) obtained delivers in the high hopper above opening for feed by hot transfer roller, then be discharged in feeding device (charging machine) by high hopper, feeding device constantly carries out mechanical reciprocation, thus direct-reduced iron is melted in point stove through being supplied to of opening for feed continuous uniform, DRI is become molten mass by the flame heat fused that the first heat-storage type burner and the second heat-storage type burner spray in molten bath, and constantly flow in molten bath slowly, along with the rising gradually of temperature, after reaching molten point temperature, because molten iron is different with the proportion of slag, iron in liquation and the layering of slag meeting self-assembling formation, form molten iron and slag, molten iron and slag gather in the molten bath of discharge zone a certain amount of after, respectively from discharge port, slag notch is discharged.And the high-temperature flue gas that melting area and disengaging zone produce enters a burner in often pair of first heat-storage type burner and the second regenerator, combustion gas slag pocket is entered through the first gas channel, air slag pocket is entered through the second gas channel, respectively after combustion gas slag pocket and air slag pocket sediment, the dust wherein carried secretly and semi-melting slag separated, regenerator gas room (checker brick aperture is 40mm) and air regenerator (checker brick aperture is 40mm) interior heat storage accumulation of heat are discharged by flue gas after separation respectively to a certain extent afterwards, after commutation, normal temperature combustion gas and air is supplied in a burner of forwardly described often pair of first heat-storage type burner and the second regenerator burner, combustion gas temperature after the preheating of regenerator gas room reaches more than 1000 DEG C, air temperature after air regenerator preheating reaches more than 1200 DEG C, space heat supply is divided through nozzle ejection to molten after combustion gas after preheating and air mixed, often pair of first heat-storage type burner and the second heat-storage type burner are being used alternatingly between fuel state and smoke evacuation state, alt time is 5 minutes.Before often pair of first heat-storage type burner and the second heat-storage type burner are transformed into smoke evacuation state from confession fuel state, first the supply of fuel shutoff, and introduce low-temperature flue gas blowback is carried out to fuel regenerator, after residual fuel being blown into molten point space, then smoke discharging.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (8)
1. a molten point stove, is characterized in that, comprising:
Molten point furnace body, in described molten point furnace body, there is molten point space, a described molten point space bottom limits molten bath, described molten point space forms intake zone, melting area, disengaging zone and discharge zone successively along melt flow direction, the sidewall of described intake zone is provided with opening for feed, and the sidewall of described discharge zone is provided with discharge port and slag notch;
First heat-storage type burner, described melting area correspondence arranges the first heat-storage type burner described at least one pair of, often pair of described first heat-storage type burner is located in the opposing sidewalls of described molten point furnace body, the air regenerator that each described first heat-storage type burner comprises nozzle, combustion gas slag pocket, air slag pocket, the regenerator gas room be communicated with described combustion gas slag pocket and is communicated with described air slag pocket; And
Second heat-storage type burner, described disengaging zone correspondence arranges the second heat-storage type burner described at least one pair of, and often pair of described second heat-storage type burner is located in the opposing sidewalls of described molten point furnace body.
2. molten point stove according to claim 1, it is characterized in that, described regenerator gas room is communicated with described nozzle by the first gas channel with described combustion gas slag pocket, described air regenerator is communicated with described nozzle by the second gas channel with described air slag pocket, when described first heat-storage type burner is in smoke evacuation state, on the circulating direction of flue gas, described air slag pocket is positioned at the upstream of described air regenerator, and described combustion gas slag pocket is positioned at the upstream of described regenerator gas room.
3. molten point stove according to claim 2, it is characterized in that, on from described nozzle to the direction of described combustion gas slag pocket, the circulation area of described first gas channel increases gradually,
On from described nozzle to the direction of described air slag pocket, the circulation area of described second gas channel increases gradually.
4. molten point stove according to claim 1, it is characterized in that having the heat storage piled up by checker brick respectively in described regenerator gas room and described air regenerator, wherein, the aperture of described checker brick is 10 ~ 100 millimeters.
5. molten point stove according to claim 1, it is characterized in that, the described molten point furnace body at described molten bath place is piled up by the erosion resistant refractory brick of multilayer and is formed, and the refractory brick periphery at described molten bath place is provided with steel furnace shell, and be provided with refrigerating unit between refractory brick at described molten bath place and described steel furnace shell
Wherein, between the refractory brick and described steel furnace shell of described molten bath side-walls, be provided with cooling stave, the refractory brick bottom described molten bath and be provided with water cooling tube or forced air cooled tube between described steel furnace shell.
6. molten point stove according to claim 5, it is characterized in that, separately by having, against gas transmission is washed away, refractory brick that is high temperature resistant and heat-insulating property is piled up and formed for the front end wall being positioned at the part on the top in described molten bath of described molten point of furnace body, back-end wall, side wall and furnace roof.
7. molten point stove according to claim 6, the front end wall being positioned at the part on the top in described molten bath of described molten point furnace body is arc headwall.
8. molten point stove according to claim 1, is characterized in that, comprise further:
Feed bin; And
Feeding device, described feeding device is connected with described opening for feed with described feed bin respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603207.8U CN204897955U (en) | 2015-08-11 | 2015-08-11 | Melt branch stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603207.8U CN204897955U (en) | 2015-08-11 | 2015-08-11 | Melt branch stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204897955U true CN204897955U (en) | 2015-12-23 |
Family
ID=54920146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520603207.8U Expired - Fee Related CN204897955U (en) | 2015-08-11 | 2015-08-11 | Melt branch stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204897955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039623A (en) * | 2015-08-11 | 2015-11-11 | 北京神雾环境能源科技集团股份有限公司 | Melting and separating furnace and method for treating materials to be molten and separated by adopting melting and separating furnace |
-
2015
- 2015-08-11 CN CN201520603207.8U patent/CN204897955U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105039623A (en) * | 2015-08-11 | 2015-11-11 | 北京神雾环境能源科技集团股份有限公司 | Melting and separating furnace and method for treating materials to be molten and separated by adopting melting and separating furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102159731B (en) | Process for producing molten iron | |
| CN102851518B (en) | Fubang oxygen-enriched side-blown bath copper smelting furnace and operation method thereof | |
| CN102796875B (en) | Zinc leaching residue treatment unit and treatment process | |
| CN102409124A (en) | Continuous iron-making device by smelting reduction | |
| CN107385235A (en) | Using the technique and its device of prereduction preheating kiln and bath smelting furnace smelting nickel-iron | |
| CN105874085A (en) | Method to operate a smelt cyclone | |
| CN204918643U (en) | Melt branch stove | |
| CN201901695U (en) | Continuous lead smelting device | |
| CN101875985A (en) | Energy-saving emission-reducing intensive blast furnace technology | |
| CN102816885A (en) | Iron-making, steel-making and direct fusing reduction integrated blast furnace technology | |
| CN101922861A (en) | Smelting furnace | |
| CN105420515B (en) | Process and device for melting laterite-nickel ore in oxygen-enriched reinforcement melting pool to obtain ferronickel | |
| CN101440417A (en) | Tube furnace-high furnace duplex coal-based smelting reduction ironmaking method | |
| CN204897955U (en) | Melt branch stove | |
| CN102146490B (en) | Reduction iron making method and device | |
| CN104817084B (en) | calcium carbide smelting furnace | |
| CN104928493A (en) | Method of adopting oxygen-enriched vortex bath smelting furnace to treat secondary copper-containing sundry | |
| CN107460340A (en) | A kind of quick blow-in method of copper bottom-blown smelting stove | |
| CN108060283A (en) | A kind of blast furnace | |
| CN105039623A (en) | Melting and separating furnace and method for treating materials to be molten and separated by adopting melting and separating furnace | |
| CN206724695U (en) | A kind of fuel gas buring and electric arc combined heat smelting furnace | |
| CN204625746U (en) | Adopt the device of winding-up shaft furnace production ferronickel water | |
| CN204529318U (en) | calcium carbide smelting furnace | |
| CN203794916U (en) | Online quality modification device of hot state molten slag | |
| CN103276278A (en) | Smelting reduction furnace used for smelting laterite-nickel ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20151223 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20151223 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |