CN204529318U - calcium carbide smelting furnace - Google Patents
calcium carbide smelting furnace Download PDFInfo
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- CN204529318U CN204529318U CN201520185305.4U CN201520185305U CN204529318U CN 204529318 U CN204529318 U CN 204529318U CN 201520185305 U CN201520185305 U CN 201520185305U CN 204529318 U CN204529318 U CN 204529318U
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Abstract
The utility model discloses a kind of calcium carbide smelting furnace, comprising: smelting furnace housing, it is made up of periphery wall, inner circumferential wall and furnace roof and inside limits the ring-type furnace chamber of lower ending opening; Furnace bottom, it is arranged at the lower end of smelting furnace housing rotationally; Flitch, it is arranged on the upper surface of furnace bottom; Multiple refractory materials partition wall, it is stretched out downwards by furnace roof and keeps at a distance with flitch, and ring-type furnace chamber is divided into adjacent charging chamber, preheating chamber, smelting chamber and discharge chamber, and charging chamber has opening for feed, and discharge chamber has discharge port; Multiple radiant tube burner, its inwall being arranged at preheating chamber place periphery wall is positioned at the top of flitch; First burner group, it comprises multiple first burner, and multiple first burner is arranged at respectively to be smelted in the inner circumferential wall of chamber and/or periphery wall; Distribution device, it is arranged at distribution cavity indoor and is connected with opening for feed; Oil gas export mouth, it is arranged at preheating chamber place furnace roof.This calcium carbide smelting furnace significantly can reduce energy consumption.
Description
Technical field
The utility model belongs to chemical technology field, and specifically, the utility model relates to a kind of calcium carbide smelting furnace.
Background technology
Industrial calcium carbide is produced and is generally adopted electric furnace smelting process, and the lime in furnace of calcium carbide and coke are heated to more than 2000 DEG C by the high temperature utilizing electric arc to produce, after stop certain hour, generate molten state calcium carbide.The calcium carbide furnace gas mainly CO that production process produces, it is discharged from upper of furnace body, and the calcium carbide product of melting is discharged from furnace bottom, through cooling, is broken into product.At present, the contradiction of China's electrical production and demand is still given prominence to, and electric power development has become the bottleneck of the national economic development.Brownout, raising electric power utilization ratio are problem in the urgent need to address, are again the problems needing long-term endeavour to study.Electric heating process produces calcium carbide ton product power consumption about 3400 degree, ranked first in chemical industry.Therefore, electric heating process produces the restriction that calcium carbide is not only subject to supply of electric power, but also affects calcium carbide production cost.
Industrial is complete in different equipment for the raw material of calcium carbide production and the smelting of calcium carbide, blue charcoal is by obtaining after pyrolysis oven upgrading, unslaked lime is that calcined limestone generates, this just makes the sensible heat of blue charcoal and unslaked lime not to be fully used, the blue charcoal that pyrolysis simultaneously obtains needs quenching process, waste water, before entering furnace of calcium carbide, need drying again, further increase the consumption of the energy.
Therefore, existing calcium carbide smelting furnace is further improved.
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 calcium carbide smelting furnace, and this calcium carbide smelting furnace significantly can reduce energy consumption.
In one of the present utility model, the utility model proposes a kind of calcium carbide smelting furnace, comprising:
Smelting furnace housing, described smelting furnace housing is made up of periphery wall, inner circumferential wall and furnace roof and described smelting furnace enclosure interior limits the ring-type furnace chamber of lower ending opening;
Furnace bottom, described furnace bottom is arranged at the lower end of described smelting furnace housing rotationally;
Flitch, described flitch is positioned at described ring-type furnace chamber and is arranged on the upper surface of described furnace bottom;
Multiple refractory materials partition wall, multiple described refractory materials partition wall is stretched out downwards by described furnace roof and keeps certain distance with described flitch, described ring-type furnace chamber is divided into charging chamber adjacent successively, preheating chamber, smelts chamber and discharge chamber by multiple described refractory materials partition wall, wherein, the bottom of two often adjacent chambers is connected, described charging chamber has opening for feed, and described discharge chamber has discharge port;
Multiple radiant tube burner, the inwall that multiple described radiant tube burner is arranged at the periphery wall at described preheating chamber place is positioned at the top of described flitch;
First burner group, described first burner group comprises multiple first burner, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber respectively and/or periphery wall;
Distribution device, described distribution device is arranged at described distribution cavity indoor and is connected with described opening for feed; And
Oil gas export mouth, described oil gas export mouth is arranged at the furnace roof place at described preheating chamber place.
Pass through to use fuel gas as raw material for calcium carbide smelting provides thermal source according to the calcium carbide smelting furnace of the utility model embodiment, more traditional use be that the smelting furnace of calcium carbide of the energy is compared with electricity, significantly can reduce energy consumption, undertaken by the process of carbide raw material and calcium carbide are smelted to combine in an annular furnace simultaneously, effectively can avoid the high temperature quenching in the blue charcoal production process in traditional technology, thus the high temperature sensible heat of the unslaked lime obtained after making the sensible heat of blue charcoal and limestone calcination is fully utilized, and effectively prevent unslaked lime and deposit the problems such as water suction, and then the energy consumption reduced further in calcium carbide production process, additionally by the furnace roof place at preheating furnace chamber, oil gas export mouth is set, thus the by product pyrolysis gas that can produce in efficient recovery coal prewarming process and coal tar.
In addition, following additional technical characteristic can also be had according to the calcium carbide smelting furnace of the utility model above-described embodiment:
In embodiments more of the present utility model, described preheating chamber is divided into the first preheating zone and the second preheating zone by described refractory materials partition wall further, and wherein, multiple described radiant tube burner is positioned on the inwall of the periphery wall of described first preheating zone.Thus, raw material energy consumption under preheating completely situation can be made lower by subregion temperature control.
In embodiments more of the present utility model, described calcium carbide smelting furnace comprises the second burner group further, and described second burner group comprises multiple second burner, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone respectively and/or periphery wall.Thus, energy consumption can be reduced further.
In embodiments more of the present utility model, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber in pairs and/or periphery wall, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone in pairs and/or periphery wall.Thus, energy consumption can be reduced further.
In embodiments more of the present utility model, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber in pairs and periphery wall, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone in pairs and periphery wall.Thus, energy consumption can be reduced further.
In embodiments more of the present utility model, the spacing of described radiant tube burner and described flitch is 40 ~ 120mm.Thus, the pre-thermo-efficiency of raw material can be significantly improved.
In embodiments more of the present utility model, the spacing of described radiant tube burner and described flitch is 60 ~ 100mm.Thus, the pre-thermo-efficiency of raw material can be significantly improved.
In embodiments more of the present utility model, described oil gas export mouth is positioned on the furnace roof of described first preheating zone.Thus, the coal tar that can produce in efficient recovery coal prewarming process and pyrolysis gas.
In embodiments more of the present utility model, angle between two the described refractory materials partition walls forming described cloth chamber is 5 ~ 15 degree, angle between two the described refractory materials partition walls forming described preheating chamber is 100 ~ 250 degree, angle between two the described refractory materials partition walls forming described smelting chamber is 100 ~ 130 degree, and the angle between two the described refractory materials partition walls forming described discharge chamber is 5 ~ 15 degree.
In embodiments more of the present utility model, described radiant tube burner is regenerative radiant tube burner, and described first burner and the second burner are heat-accumulating burner.Thus, the heat utilization efficiency in burner hearth can be significantly improved.
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
Fig. 1 is the structural representation of the calcium carbide smelting furnace according to the utility model embodiment;
Fig. 2 is the structural representation of the calcium carbide smelting furnace 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 calcium carbide smelting furnace.Below with reference to Fig. 1, the calcium carbide smelting furnace of the utility model embodiment is described in detail.According to embodiment of the present utility model, this calcium carbide smelting furnace comprises:
Smelting furnace housing 100: according to embodiment of the present utility model, smelting furnace housing 100 is made up of periphery wall 11, inner circumferential wall 12 and furnace roof (not shown).
According to embodiment of the present utility model, smelting furnace housing 100 inside limits the ring-type furnace chamber 13 of lower ending opening.
Furnace bottom 200: according to embodiment of the present utility model, furnace bottom 200 is arranged at the lower end of smelting furnace housing 100 rotationally, and is suitable for closed circular furnace chamber 13, thus the smelting of calcium carbide is carried out in enclosed system.Concrete, furnace bottom 200 can horizontally rotate.
Flitch 300: according to embodiment of the present utility model, flitch 300 is positioned at ring-type furnace chamber 13 and is arranged on the upper surface of furnace bottom 200, thus can effectively avoid calcium carbide smelting process Raw to the corrosion of furnace bottom.
Refractory materials partition wall 400: according to embodiment of the present utility model, calcium carbide smelting furnace can be provided with multiple refractory materials partition wall 400, according to specific embodiment of the utility model, multiple refractory materials partition wall 400 is stretched out downwards by furnace roof and keeps certain distance with flitch 300, and ring-type furnace chamber 13 is divided into charging chamber 41 adjacent successively, preheating chamber 42, smelts chamber 43 and discharge chamber 44 by multiple refractory materials partition wall 400.Thus, along with the rotation of furnace bottom, material is made to carry out thermal pretreatment and metallurgy successively, namely undertaken by the production of carbide raw material and calcium carbide are smelted to combine in an annular furnace, effectively can avoid the high temperature quenching in the blue charcoal production process in traditional technology, thus the high temperature sensible heat of the unslaked lime obtained after making the sensible heat of blue charcoal and limestone calcination is fully utilized, and effectively prevent unslaked lime and deposit the problems such as water suction, and then reduce the energy consumption in calcium carbide production process further.
According to embodiment of the present utility model, the bottom of two often adjacent chambers is connected.According to specific embodiment of the utility model, refractory materials partition wall 400 lower end to the distance of flitch 300 slightly larger than the thickness of the bed of material on flitch 300, namely material with bed of material top in furnace bottom 200 rotary course and refractory materials partition wall 400 bottom apart from the least possible, according to concrete example of the present utility model, bed of material top and refractory materials partition wall bottom distance can be 10 ~ 50mm.Thus, the effective partition to chamber each in annular furnace chamber can be realized, thus the atmosphere of protection preheating cavity indoor, and then reclaim pyrolysis gas and coal tar wet goods composition smoothly.
According to embodiment of the present utility model, charging chamber 41 has opening for feed 401, and according to specific embodiment of the utility model, opening for feed 401 can be arranged in the periphery wall at charging chamber 41 place.
According to embodiment of the present utility model, preheating chamber 42 has oil gas export mouth 402, according to specific embodiment of the utility model, oil gas export mouth 402 can be arranged at the furnace roof place at preheating chamber 42 place, according to concrete example of the present utility model, oil gas export mouth 402 can be arranged at the furnace roof place of the first preheating zone 45.Thus, the pyrolysis gas that can produce in efficient recovery coal prewarming process and coal tar.
According to embodiment of the present utility model, discharge chamber 44 has discharge port 403, and according to specific embodiment of the utility model, discharge port 403 can be arranged in the periphery wall at discharge chamber 44 place.
According to embodiment of the present utility model, angle [alpha] (as Fig. 1) between two refractory materials partition walls 400 of formation cloth chamber 41 can be 5 ~ 15 degree, angle beta (as Fig. 1) between two refractory materials partition walls 400 of formation preheating chamber 42 can be 100 ~ 250 degree, the angle γ (as Fig. 1) formed between two the refractory materials partition walls 400 smelting chamber 43 can be 100 ~ 130 degree, and the angle δ (as Fig. 1) between two refractory materials partition walls 400 of formation discharge chamber 44 can be 5 ~ 15 degree.Concrete, the size of cloth chamber and discharge chamber depends on the feature of distribution device and drawing mechanism, and the size of preheating chamber and smelting chamber is the result considering raw material type, character, particle diameter, proportioning, bed thickness and processing condition (temperature, pressure and time etc.), and contriver finds, preheating chamber of the present utility model and smelting chamber can ensure that preheating and metallurgy process materials react completely, and energy consumption is minimum.
Radiant tube burner 500: according to embodiment of the present utility model, calcium carbide smelting furnace can be provided with multiple radiant tube burner 500, according to specific embodiment of the utility model, the inwall that multiple radiant tube burner 500 can be arranged at the periphery wall at preheating chamber 41 place is positioned at the top of flitch 300.Thus, fuel gas can be used to smelt for calcium carbide as raw material thermal source is provided, more traditional use be that the smelting furnace of calcium carbide of the energy is compared with electricity, significantly can reduce energy consumption.
According to embodiment of the present utility model, radiant tube burner 500 can be regenerative radiant tube burner.Thus, heat utilization rate in furnace chamber can be significantly improved.Concrete, radiant tube burner 500 can have steel tube, ceramic honeycomb body and burner.
According to embodiment of the present utility model, radiant tube burner 500 is not particularly limited with the spacing of flitch 300, according to specific embodiment of the utility model, radiant tube burner 500 can be 40 ~ 120mm with the spacing of flitch 300, according to concrete example of the present utility model, radiant tube burner 500 can be 60 ~ 100mm with the spacing of flitch 300.Contriver finds, material can be made to be heated evenly and to react completely, thus reduce energy consumption further in this altitude range.
First burner group 600: according to embodiment of the present utility model, the first burner group can comprise multiple first burner 61, and according to specific embodiment of the utility model, multiple first burner can be arranged at respectively to be smelted in the inner circumferential wall of chamber 44 and/or periphery wall.
According to embodiment of the present utility model, the first burner 61 can be heat-accumulating burner.Concrete, heat-accumulating burner is connected with regenerator, and has the heat storage of high temperature ceramic material in regenerator.
According to embodiment of the present utility model, in calcium carbide smelting process, a part of burner smelted in multiple first burners 61 in chamber 44 may be used for burning, and another part burner may be used for smoke evacuation, to go forward side by side line period rotation, namely, when burner is for discharging fume, the heat storage heat absorption of heat-accumulating burner, makes funnel temperature reduce simultaneously, when burner combustion, heat storage heat release, carries out preheating to combustion air or fuel, thus can significantly improve the efficiency of combustion of fuel gas.Thus, by arranging multiple first heat-accumulating burner on the inner circumferential wall smelting chamber 44 and/or periphery wall, the heat utilization rate in furnace chamber can be significantly improved, thus reduce energy consumption further.
According to embodiment of the present utility model, multiple first burner 61 can be arranged at respectively in pairs to be smelted in the inner circumferential wall of chamber 44 and/or periphery wall.It should be explained that, " arranging in pairs " herein can be understood as burner and arranges in the mode that two is a pair, such as in every a pair burner, there are two burners, two burners can be arranged on periphery wall simultaneously or two burners are arranged on inner circumferential wall simultaneously, or one of them is arranged on inner circumferential wall, and another is arranged in periphery wall.Thus, heat utilization rate can be improved further.
According to embodiment of the present utility model, multiple first burner 61 is arranged in pairs to be smelted in the inner circumferential wall of chamber 44 and periphery wall.Concrete, have two burners in every a pair burner, one is arranged on inner circumferential wall, and another is arranged in periphery wall.Thus, heat utilization rate can be improved further.
Distribution device 700: according to embodiment of the present utility model, distribution device 700 to be arranged in cloth chamber 41 and to be connected with opening for feed 401, thus makes material to be evenly laid on flitch.
According to embodiment of the present utility model, the temperature of the first preheating zone of preheating chamber controls to be 550 ~ 850 DEG C, and the temperature of the second preheating zone controls to be 900 ~ 1300 DEG C, and the temperature of smelting in chamber controls to be 1350 ~ 1700 DEG C.
With reference to figure 2, according to embodiment of the present utility model, preheating chamber 42 can be divided into the first preheating zone 45 and the second preheating zone 46 by refractory materials partition wall 400 further, according to specific embodiment of the utility model, radiant tube burner 500 can be arranged on the inwall of the periphery wall of the first preheating zone 45.
According to embodiment of the present utility model, calcium carbide smelting furnace comprises further:
Second burner group 800: according to embodiment of the present utility model, the second burner group 800 comprises multiple second burner 81, according to specific embodiment of the utility model, in the inner circumferential wall that multiple second burner 82 is arranged at the second preheating zone 46 respectively and/or periphery wall.
According to embodiment of the present utility model, according to embodiment of the present utility model, the second burner 81 can be heat-accumulating burner.Concrete, the second nozzle structure is same as the first burner described above.
According to embodiment of the present utility model, in the inner circumferential wall that multiple second burner 81 can also be arranged at the second preheating zone 46 respectively in pairs and/or periphery wall.It should be noted that, " in pairs arrange " herein with describe consistent above, repeat no more herein.
According to embodiment of the present utility model, in the inner circumferential wall that multiple second burner 81 can be arranged at the second preheating zone 46 in pairs and periphery wall.Thus, heat utilization rate can be improved further.
Pass through to use fuel gas as raw material for calcium carbide smelting provides thermal source according to the calcium carbide smelting furnace of the utility model embodiment, more traditional use be that the smelting furnace of calcium carbide of the energy is compared with electricity, significantly can reduce energy consumption, undertaken by the process of carbide raw material and calcium carbide are smelted to combine in an annular furnace simultaneously, effectively can avoid the high temperature quenching in the blue charcoal production process in traditional technology, thus the high temperature sensible heat of the unslaked lime obtained after making the sensible heat of blue charcoal and limestone calcination is fully utilized, and effectively prevent unslaked lime and deposit the problems such as water suction, and then the energy consumption reduced further in calcium carbide production process, additionally by the furnace roof place at preheating furnace chamber, oil gas export mouth is set, thus the by product pyrolysis gas that can produce in efficient recovery coal prewarming process and coal tar, and by using heat-accumulating burner and regenerative radiant tube burner as the heating unit of calcium carbide smelting furnace, heat utilization rate in furnace chamber can be significantly improved.
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 1
For brown coal and unslaked lime, the working process to calcium carbide smelting furnace (as shown in Figure 1) of the present utility model is described in detail below, wherein, angle between two refractory materials partition walls of formation cloth chamber is 10 degree, angle between two refractory materials partition walls of formation preheating chamber is 150 degree, the angle formed between two the refractory materials partition walls smelting chamber is 190 degree, angle between two refractory materials partition walls of formation discharge chamber is 10 degree, first brown coal and unslaked lime are hot pressed into the material pelletizing that diameter is 8mm, the spacing of described radiant tube burner and described flitch is 80mm, described bed thickness is about 25mm.Wherein, the granularity of brown coal and unslaked lime is all lower than 30 μm, then by the opening for feed on charging chamber, the material pelletizing obtained is supplied in distribution device, then material pelletizing is evenly laid on flitch through distribution device, and the bottom of refractory materials partition wall is a little more than bed thickness, along with the rotation of furnace bottom, material pelletizing enters in preheating chamber (controlling preheating cavity chambers temp by regenerative radiant tube burner is 650 DEG C), complete the preheating of preliminary upgrading to brown coal and unslaked lime, the coal tar simultaneously produced and pyrolysis gas are reclaimed by the oil gas export mouth at preheating chamber furnace roof place, then the product obtained enters the smelting of smelting in chamber (controlling to smelt chamber temp by multiple heat-accumulating burner is 1450 DEG C) and completing calcium carbide, obtain high-temperature solid calcium carbide product (gas forming amount >300L/Kg), then the discharge port of high-temperature solid calcium carbide in the periphery wall at discharge chamber place is discharged annular furnace chamber, compared with the liquid calcium carbide product adopting traditional furnace of calcium carbide to obtain, the utility model is by controlling the size in each district, the rotating speed of furnace bottom and regulate reaction times of each chamber, the reasonable efficiency utilization of energy can be realized, and the sensible heat of the product obtained in preheating chamber can be made to be fully utilized, thus the energy consumption (comprehensive energy consumption reduces about 600 degree/t calcium carbide) significantly reduced in calcium carbide smelting process.
Embodiment 2
For long-flame coal and Wingdale, the working process to calcium carbide smelting furnace (as shown in Figure 2) of the present utility model is described in detail below, wherein, angle between two refractory materials partition walls of formation cloth chamber is 10 degree, angle between two refractory materials partition walls of formation preheating chamber is 220 degree, wherein, first preheating zone is 120 degree, second preheating zone is 100 degree, the angle formed between two the refractory materials partition walls smelting chamber is 120 degree, angle between two refractory materials partition walls of formation discharge chamber is 10 degree, first long-flame coal and Wingdale are hot pressed into the material pelletizing that diameter is 8mm, the spacing of described radiant tube burner and described flitch is 60mm, described bed thickness is about 15mm.Wherein, the granularity of long-flame coal and Wingdale is all lower than 50 μm, then by the opening for feed on charging chamber, the material pelletizing obtained is supplied in distribution device, then material pelletizing is evenly laid on flitch through distribution device, and the bottom of refractory materials partition wall is a little more than bed thickness, along with the rotation of furnace bottom, material pelletizing enters in first preheating zone (controlling the first preheating zone temperature by regenerative radiant tube burner is 600 DEG C) of preheating chamber, complete the preheating of preliminary upgrading to long-flame coal and Wingdale, the coal tar simultaneously produced and pyrolysis gas are reclaimed by the oil gas export mouth at the first furnace roof place, preheating zone, then the solid product obtained enters second preheating zone (controlling the second preheating zone temperature by multiple heat-accumulating burner is 1100 DEG C) of preheating chamber, complete limestone calcination and long-flame coal high-temperature heat treatment, then the product obtained enters the smelting of smelting in chamber (controlling to smelt chamber temp by multiple heat-accumulating burner is 1600 DEG C) and completing calcium carbide, obtain high-temperature solid calcium carbide product (gas forming amount >300L/Kg), then the discharge port of high-temperature solid calcium carbide in the periphery wall at discharge chamber place is discharged annular furnace chamber, compared with the liquid calcium carbide product adopting traditional smelting furnace to obtain, the utility model is by controlling the size in each district, the rotating speed of furnace bottom and regulate reaction times of each chamber, the reasonable efficiency utilization of energy can be realized, and the sensible heat of the product obtained in preheating chamber can be made to be fully utilized, thus the energy consumption (comprehensive energy consumption reduces about 800 degree/t calcium carbide) significantly reduced in calcium carbide smelting process.
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 (10)
1. a calcium carbide smelting furnace, is characterized in that, comprising:
Smelting furnace housing, described smelting furnace housing is made up of periphery wall, inner circumferential wall and furnace roof and described smelting furnace enclosure interior limits the ring-type furnace chamber of lower ending opening;
Furnace bottom, described furnace bottom is arranged at the lower end of described smelting furnace housing rotationally;
Flitch, described flitch is positioned at described ring-type furnace chamber and is arranged on the upper surface of described furnace bottom;
Multiple refractory materials partition wall, multiple described refractory materials partition wall is stretched out downwards by described furnace roof and keeps certain distance with described flitch, described ring-type furnace chamber is divided into charging chamber adjacent successively, preheating chamber, smelts chamber and discharge chamber by multiple described refractory materials partition wall, wherein, the bottom of two often adjacent chambers is connected, described charging chamber has opening for feed, and described discharge chamber has discharge port;
Multiple radiant tube burner, the inwall that multiple described radiant tube burner is arranged at the periphery wall at described preheating chamber place is positioned at the top of described flitch;
First burner group, described first burner group comprises multiple first burner, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber respectively and/or periphery wall;
Distribution device, described distribution device is arranged at described distribution cavity indoor and is connected with described opening for feed; And
Oil gas export mouth, described oil gas export mouth is arranged at the furnace roof place at described preheating chamber place.
2. calcium carbide smelting furnace according to claim 1, it is characterized in that, described preheating chamber is divided into the first preheating zone and the second preheating zone by described refractory materials partition wall further, and wherein, multiple described radiant tube burner is positioned on the inwall of the periphery wall of described first preheating zone.
3. calcium carbide smelting furnace according to claim 2, is characterized in that, comprise further:
Second burner group, described second burner group comprises multiple second burner, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone respectively and/or periphery wall.
4. calcium carbide smelting furnace according to claim 3, it is characterized in that, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber in pairs and/or periphery wall, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone in pairs and/or periphery wall.
5. calcium carbide smelting furnace according to claim 4, it is characterized in that, in the inner circumferential wall that multiple described first burner is arranged at described smelting chamber in pairs and periphery wall, in the inner circumferential wall that multiple described second burner is arranged at described second preheating zone in pairs and periphery wall.
6. calcium carbide smelting furnace according to claim 1 and 2, is characterized in that, the spacing of described radiant tube burner and described flitch is 40 ~ 120mm.
7. calcium carbide smelting furnace according to claim 6, is characterized in that, the spacing of described radiant tube burner and described flitch is 60 ~ 100mm.
8. calcium carbide smelting furnace according to claim 2, is characterized in that, described oil gas export mouth is positioned on the furnace roof of described first preheating zone.
9. calcium carbide smelting furnace according to claim 1, it is characterized in that, angle between two the described refractory materials partition walls forming described cloth chamber is 5 ~ 15 degree, angle between two the described refractory materials partition walls forming described preheating chamber is 100 ~ 250 degree, angle between two the described refractory materials partition walls forming described smelting chamber is 100 ~ 130 degree, and the angle between two the described refractory materials partition walls forming described discharge chamber is 5 ~ 15 degree.
10. calcium carbide smelting furnace according to claim 5, is characterized in that, described radiant tube burner is regenerative radiant tube burner, and described first burner and the second burner are heat-accumulating burner.
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| CN201520185305.4U CN204529318U (en) | 2015-03-30 | 2015-03-30 | calcium carbide smelting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817084A (en) * | 2015-03-30 | 2015-08-05 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide smelting furnace |
| CN106482121A (en) * | 2016-11-02 | 2017-03-08 | 赵升智 | Radial canal incinerator |
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2015
- 2015-03-30 CN CN201520185305.4U patent/CN204529318U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817084A (en) * | 2015-03-30 | 2015-08-05 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide smelting furnace |
| CN106482121A (en) * | 2016-11-02 | 2017-03-08 | 赵升智 | Radial canal incinerator |
| CN106482121B (en) * | 2016-11-02 | 2019-06-28 | 赵升智 | Radiant tube waste incinerator |
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