CN205472696U - Calcium carbide furnace - Google Patents
Calcium carbide furnace Download PDFInfo
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- CN205472696U CN205472696U CN201620257307.4U CN201620257307U CN205472696U CN 205472696 U CN205472696 U CN 205472696U CN 201620257307 U CN201620257307 U CN 201620257307U CN 205472696 U CN205472696 U CN 205472696U
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Abstract
The utility model discloses a calcium carbide furnace. This calcium carbide furnace includes: top -down's oxygen thermal response district and carbide reaction zone, oxygen containing gas spouts the umbrella, oxygen containing gas spouts the umbrella setting and distinguishes in the oxygen thermal response, matter entrance, matter entrance establishes in oxygen thermal response district and is located the top that oxygen containing gas spouts the umbrella, the oxygen containing gas entry, the oxygen containing gas entry is established in oxygen thermal response district and is spouted the umbrella with oxygen containing gas and links to each other, the tail gas export, the tail gas export is established and is distinguished in the oxygen thermal response, the electrode, the electrode is embedded into the carbide reaction zone from the calcium carbide furnace furnace roof, and carbide export, the carbide export is established at the carbide reaction zone. From this, can make oxygen containing gas and mixtures fully contact, utilize the burning of partial carbon containing material to heat mixtures, can save carbide production energy consumption, practice thrift manufacturing cost.
Description
Technical field
This utility model relates to chemical field.Specifically, this utility model relates to furnace of calcium carbide.
Background technology
Carbide formal name used at school Acetylenogen., clear crystal, mainly for the production of acetylene gas, once it was referred to as " mother of organic synthesis industry ".
Acetylene is important industrial chemicals, mainly for the production of polyvinyl chloride-based and vinyl acetate base product, China's PVC product 70%
Raw materials for production acetylene come from carbide, the economic development of China is had a very important role by carbide, in the recent decade
Yield constantly increases, and 2013 annual productions reach more than 22,000,000 tons.
But, current furnace of calcium carbide still haves much room for improvement.
Utility model content
The application is to make following facts and the discovery of problem and understanding based on inventor:
Preparing in the technology of carbide at present, generally there is the shortcoming that energy consumption is high, production cost is high, become during carbide produces is huge
Big obstruction.Inventor finds through further investigation, and this is owing to current carbide production technology mainly uses electrothermal way and oxygen full-boiled process,
Electrothermal way uses the method for electric arc heated, owing to block stock contact area is little, seriously limits raw material heat transfer process, makes
Obtaining industrial reaction need at high temperature carry out (2000~2300 degrees Celsius), the power consumption of carbide per ton (purity 80.6%) is up to
3250kw/h, is genuine " highly energy-consuming " industry.Further, current electrothermal way is higher to ingredient requirement, generally needs
The block semi-coke of high-quality to be used or coke and block Calx, and then add the raw material utilizing electrothermal way to prepare carbide and become
This.And oxygen full-boiled process is under the conditions of having oxygen, part carbon-containing fuel burns, and produces heat remaining carbon back raw material and calcium
Based raw material so that it is reaction generate carbide, oxygen full-boiled process can replacing whole electric energy, but owing to unit carbon-containing fuel not exclusively fires
The thermal discharge burnt is less, therefore needs a large amount of carbon-containing fuel supply heat that burns, and produces more ash and is enriched in carbide, greatly
Affect carbide quality.
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this practicality is new
Type proposes a kind of furnace of calcium carbide, and oxygen full-boiled process is combined by this furnace of calcium carbide with electrothermal way, utilize oxygen thermal process to containing carbon back raw material and
The mixed material of calcio raw material heats in advance, such that it is able to save follow-up electrothermal way to produce the energy consumption required for carbide, from
And carbide energy consumption can be reduced, save production cost.
The utility model proposes a kind of furnace of calcium carbide.Specifically, this furnace of calcium carbide includes: top-down oxygen heating reaction district and electricity
Stone reaction zone;Oxygen-containing gas spray umbrella, described oxygen-containing gas spray umbrella is arranged on described oxygen heating reaction district;Material inlet, described thing
Material entrance is located at described oxygen heating reaction district and is positioned at the top of described oxygen-containing gas spray umbrella;Oxygen-containing gas entrance, described oxygenous
Body entrance is located at described oxygen heating reaction district and is connected with described oxygen-containing gas spray umbrella;Offgas outlet, described offgas outlet is located at institute
State oxygen heating reaction district;Electrode, described electrode is embedded into described carbide reaction zone from described furnace of calcium carbide furnace roof;And carbide outlet,
The outlet of described carbide is located at described carbide reaction zone.Inventor finds, by arranging oxygen-containing gas spray umbrella in furnace of calcium carbide, contains
Carrier of oxygen spray umbrella is by ejection oxygen-containing gas so that oxygen-containing gas with enter furnace of calcium carbide containing carbon back raw material and calcio raw material
Mixed material is fully contacted, thus the material heating non-uniform phenomenon that effectively prevent furnace of calcium carbide interior local oxygen-enriched combusting and cause,
And spray into oxygen-containing gas amount by regulation and realize the imperfect combustion generation heat of part carbon back material in order to heat remaining mixing
Material, such that it is able to significantly reduce electrothermal way to produce the energy consumption of carbide process, and owing to electrothermal way production carbide process will not
Produce ash, thereby may be ensured that gained carbide has higher quality, thus can reduce carbide manufacturing enterprise power cost
While improve carbide quality, improve Business Economic Benefit.
Specifically, in this furnace of calcium carbide, described oxygen-containing gas spray pack includes: admission line, described admission line is along level side
To being arranged in described oxygen heating reaction district, and described admission line is connected with described oxygen-containing gas entrance;And multiple nozzle,
Described nozzle vertically and is disposed on the lower section of described admission line, and described nozzle includes inducing QI portion and portion of giving vent to anger from top to bottom,
And described inducing QI portion is connected with described admission line, described in give vent to anger portion sidewall on be provided with multiple gas outlet.Thus, profit
Spray umbrella with the oxygen-containing gas with multiple nozzle in furnace of calcium carbide, supply oxygen-containing gas, oxygen-containing gas can be made to fill with mixed material
Tap is touched, such that it is able to the material heating non-uniform phenomenon being prevented effectively from furnace of calcium carbide interior local oxygen-enriched combusting and causing, and then fall
Low follow-up electrothermal way produces the energy consumption of carbide process.
Specifically, giving vent to anger described in, the longitudinal section in portion is long-pending to be gradually reduced from top to bottom.Thus, with the lower bevel in the portion of giving vent to anger for going out
QI KOU so that oxygen-containing gas can spray in umbrella, oxygen-containing gas injection is uniformly.
Specifically, this furnace of calcium carbide includes that multiple described oxygen-containing gas sprays umbrella, the described air inlet on the plurality of oxygen-containing gas spray umbrella
Pipeline is arranged in parallel in same level.Thus, it is possible to ensure being fully contacted of oxygen-containing gas and mixed material, thus enter
One step improves the pre-thermal efficiency of mixed material, and then reduces the energy consumption of follow-up electrothermal way production carbide process further.
Specifically, the beeline between described nozzle and the bed of material of described carbide reaction zone on described oxygen-containing gas spray umbrella is
200~800mm.Thus, beneficially oxygen-containing gas sprays evenly, it is to avoid due to local peroxide, cause material to burn completely,
And then the unnecessary loss of carbon back raw material and burning can be avoided to generate ash and too much affect the quality of carbide product.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the furnace of calcium carbide according to one embodiment of this utility model;
Fig. 2 shows the structural representation of the oxygen-containing gas spray umbrella according to one embodiment of this utility model;
Fig. 3 shows the structural representation of the furnace of calcium carbide according to another embodiment of this utility model;And
Fig. 4 shows the flow chart preparing carbide method of the furnace of calcium carbide according to one embodiment of this utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to
The embodiment that accompanying drawing describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
The utility model proposes a kind of furnace of calcium carbide.According to embodiment of the present utility model, with reference to Fig. 1, this furnace of calcium carbide includes oxygen
Thermal reaction area 100 and carbide reaction zone 200.Wherein, oxygen-containing gas spray umbrella 110 is arranged on oxygen heating reaction district 100, electrode
210 are embedded into carbide reaction zone 200 from furnace of calcium carbide furnace roof.
Specifically, oxygen heating reaction district 100 is arranged in furnace of calcium carbide with carbide reaction zone 200 is top-down, in other words,
Oxygen heating reaction district 100 is arranged on the top of carbide reaction zone 200.Oxygen-containing gas spray umbrella 110 is arranged on oxygen heating reaction district 100
In, material inlet 120 is arranged in oxygen heating reaction district 100, and umbrella 110 is sprayed higher than oxygen-containing gas in the position of material inlet 120,
I.e. material inlet 120 is arranged on the top of oxygen-containing gas spray umbrella 110.Containing carbon back raw material and the mixed material of calcio raw material
Enter furnace of calcium carbide from material inlet 120.Oxygen-containing gas entrance 130 is arranged in oxygen heating reaction district 100, and with oxygenous
Body spray umbrella 110 is connected, in order to supply oxygen-containing gas to oxygen-containing gas spray umbrella 110.Electrode 210 embeds from the top of furnace of calcium carbide
In carbide reaction zone 200, by arc discharge, the mixed material dropping to carbide reaction zone is heated, in order to occur
Carbide reaction of formation, generates carbide and calcium carbide tail gas.Carbide outlet 220 is arranged on carbide reaction zone, in order to by generate
Carbide is by carbide outlet 220 discharge furnace of calcium carbide.Offgas outlet 140 is arranged in oxygen heating reaction district 100, in order to discharge carbide
Tail gas.Mixed material is supplied to furnace of calcium carbide by material inlet 120, sprays with oxygen-containing gas spray umbrella 110 during falling
The oxygen-containing gas gone out is fully contacted so that mixed material, before occurring carbide to produce reaction, is added in oxygen heating reaction district in advance
Heat, such that it is able to improve the temperature of mixed material, saves electrothermal way and prepares carbide process energy consumption, thus save production cost.
Understand for convenience, below each device in this system is described in detail.
According to embodiment of the present utility model, with reference to Fig. 2, oxygen-containing gas spray umbrella 110 includes: admission line 111 and nozzle
112.Specifically, admission line 111 is arranged in oxygen heating reaction district 100 in the horizontal direction, and admission line 111 is with oxygen-containing
Gas access 130 (not shown) is connected, in order to make oxygen-containing gas enter into air inlet from oxygen-containing gas entrance 130
In pipeline 111.Oxygen-containing gas spray umbrella 110 includes multiple nozzle 112, such that it is able to realize supplying in furnace of calcium carbide equably containing
Carrier of oxygen.According to embodiment of the present utility model, multiple nozzles 112 vertically and are spaced apart and arranged in admission line 111 times
Side, say, that multiple nozzles 112 be arranged on parallel to each other admission line 111 lower section and with admission line 111
Be connected, and each nozzle 112 be all vertically arranged with admission line 111, between two nozzles 112 between be separated out certain space.
Nozzle 112 includes inducing QI portion 10 and portion 20 of giving vent to anger from top to bottom, and inducing QI portion 10 is connected with admission line 111, in order to
Oxygen-containing gas in admission line 111 is imported in the portion of giving vent to anger 20, the sidewall in portion 20 of giving vent to anger is provided with multiple gas outlet
21, in order to equably oxygen-containing gas is sprayed so that oxygen-containing gas is fully contacted with mixed material.According to of the present utility model
Embodiment, portion 20 of giving vent to anger can have the longitudinal section being gradually reduced from top to bottom, and in other words, portion 20 of giving vent to anger can have
The longitudinal section of inverted trapezoidal, wedge shape or taper.Thus, with the lower bevel in the portion of giving vent to anger 20 for oxygen-containing gas gas outlet 21,
Oxygen-containing gas can be sprayed in umbrella, and oxygen-containing gas injection uniformly, can be avoided owing to oxygen-containing gas enrichment in local causes
Carbon back raw material burn completely, and then the unnecessary loss of carbon back raw material and burning can be avoided to generate ash and too much affect
The quality of carbide product.
According to embodiment of the present utility model, mixed material is after entering furnace of calcium carbide, with containing of oxygen-containing gas spray umbrella 110 ejection
Carrier of oxygen is fully contacted, and the part carbon back raw material in mixed material occurs imperfect combustion in oxygen heating reaction district 100, to add
The remaining mixed material of heat, and heated after mixed material continue the carbide reaction zone that falls to be positioned at bottom furnace of calcium carbide
200, pile up and form the bed of material.
According to embodiment of the present utility model, the nozzle 112 in oxygen-containing gas nozzle 110 and the bed of material of carbide reaction zone 200
Between beeline can be 200~800mm.Inventor finds, when nozzle 112 and carbide reaction zone 200 the bed of material it
Between beeline when can be 200~800mm, beneficially oxygen-containing gas sprays evenly, it is to avoid due to local peroxide, lead
Cause material to burn completely, and then the unnecessary loss of carbon back raw material and burning can be avoided to generate ash and too much affect carbide
The quality of product.It will be appreciated by persons skilled in the art that above-mentioned " beeline " refers to bottom and the bed of material of nozzle 112
Between distance.
According to embodiment of the present utility model, in this furnace of calcium carbide, multiple oxygen-containing gas spray umbrella 110 can be set.According to this reality
With novel specific embodiment, the air inlet pipe 111 of multiple oxygen-containing gas spray umbrella 110 is arranged in parallel in same level.By
This, it is ensured that oxygen-containing gas is fully contacted with mixed material, thus improves the pre-thermal efficiency of mixed material further, enters
And reduce follow-up electrothermal way further and produce the energy consumption of carbide process.
According to embodiment of the present utility model, the mixed material containing carbon back raw material and calcio raw material is entered by material inlet 120
Entering in furnace of calcium carbide, contact with the oxygen-containing gas of oxygen-containing gas spray umbrella 110 ejection, the part carbon back raw material in mixed material is containing
Under conditions of carrier of oxygen exists, carrying out imperfect combustion in oxygen heating reaction district 100, liberated heat is to remaining mixture material
Heat, produce the imflammable gas rich in carbon monoxide simultaneously.Owing to oxygen-containing gas spray umbrella 110 has previously described
Structure and set-up mode, therefore can be implemented in uniformly spraying into of oxygen-containing gas in oxygen heating reaction district 100, and and mixture
Material is fully contacted, it is to avoid the most oxygen-enriched.Thus, it is only necessary in mixed material, suitably increase the content of carbon back material, Ji Ke
In oxygen heating reaction district 100, mixed material is heated to enough temperature, it is not necessary to extra supply fuel in furnace of calcium carbide.According to this
The embodiment of utility model, the mixed material processed through oxygen heating reaction district 100 can be heated to 1200~1500 degrees Celsius.
It should be noted that in this utility model, in mixed material carbon back raw material and the concrete kind of calcio raw material and
Concrete mixed proportion is not particularly limited, and those skilled in the art can select according to practical situation.Such as, according to this
One embodiment of utility model, can be (0.7~0.9) according to the mass ratio of carbon back raw material and calcio raw material: 1 mixes.
Inventor finds through further investigation and great many of experiments, if carbon back material rate in the mixture of carbon back raw material and calcio raw material
Too high, then carbon back material excess in carbide produces, suppression carbide reaction carries out, and produces carbon distribution;If ratio is too low, then
Calcium-based material excess in carbide produces, the Acetylenogen. of carbide reaction output is less, causes carbide product qualities poor.Such as,
According to specific embodiment of the utility model, in calcio raw material, the content of calcium oxide can be 90~95wt%, carbon back raw material
The content of middle fixed carbon can be 80~90wt%.In this utility model, oxygen-containing gas can be air, oxygen-enriched air with
And oxygen, or the gaseous mixture of above-mentioned gas.Those skilled in the art can be according to the particular make-up of mixed material and electricity
The concrete structure of stone stove, determines concrete kind and the composition of oxygen-containing gas, as long as can make in oxygen heating reaction district
Appropriate carbon back raw material generation imperfect combustion, and utilize combustion heat release that mixed material is heated to previously described temperature
?.
According to embodiment of the present utility model, electrode 210 is embedded into carbide reaction zone 200 from the furnace roof of furnace of calcium carbide, in order to
By arc discharge, the bed of material being deposited in carbide reaction zone 200 is heated, in order to make material layer temperature raise and carbide occurs
Reaction.In other words, the electricity in carbide reaction zone 200 is stretched into through oxygen heating reaction district 100 by being arranged on furnace of calcium carbide top
Pole 210 carries out arc discharge heating to the mixed material in carbide reaction zone 200.Specifically, according to reality of the present utility model
Executing example, the temperature of carbide reaction can be 2000~2200 degrees Celsius.The liquid carbide product generated, can be by being positioned at electricity
Carbide outlet 220 outflow of stone furnace bottom.The calcium carbide liquid that reaction generates flows to bottom furnace of calcium carbide under gravity, thus,
Liquid carbide can be made periodically to flow out by arranging timing open carbide outlet 220 easily.The carbide that carbide reaction generates
Tail gas the most configured offgas outlet 140 in furnace of calcium carbide top (i.e. in oxygen heating reaction district) in furnace of calcium carbide is discharged.
Owing to the reaction temperature of carbide production reaction is higher, therefore calcium carbide tail gas also contains certain sensible heat.This partial heat is at electricity
During stone tail gas moves from bottom to top, the mixed material fallen in furnace of calcium carbide can be passed to, and then can be further
Improve the temperature of mixed material, such that it is able to save, the required energy provided of carbide reaction occurs.
It should be noted that on the premise of not paying creative work, do according to the furnace of calcium carbide of this utility model embodiment
The improvement gone out and structural adjustment fall within the scope of this utility model protection.Such as, with reference to Fig. 3, arrange in furnace of calcium carbide
Multiple oxygen-containing gas entrances 130 being connected with oxygen-containing gas spray umbrella 110, in order to improve and supply oxygen-containing gas in furnace of calcium carbide
Efficiency, and improve the mobility of oxygen-containing gas air-flow.Furthermore, it is possible to spray the position of umbrella 110 at furnace of calcium carbide higher than oxygen-containing gas
On multiple material inlet 120 is set, to improve the material efficiency of supply, and improve air-flow and solid-state in oxygen heating reaction district 100
The confusion degree of mixed material, increases the collision frequency of mixed material and oxygen-containing gas.Further, it is also possible to bottom furnace of calcium carbide
Multiple carbide outlet 220 is set.As long as it will be appreciated to those of skill in the art that and can utilizing basis in this furnace of calcium carbide
The oxygen-containing gas spray umbrella 110 of this utility model embodiment realizes being supplied uniformly across oxygen-containing gas in furnace of calcium carbide, utilizes oxygen heat anti-
Should improve mixed material temperature, recycling electrothermal way generates carbide.
It (can be pure that this utility model employing sprays oxygen-containing gas by oxygen-containing gas spray umbrella 110 above the bed of material in furnace of calcium carbide stove
Oxygen, oxygen-enriched air or air) mode, on the one hand, oxygen-containing gas can be realized and spray into uniformly, with material completely attach to, no
There is local oxygen-enriched combusting;On the other hand, oxygen-containing gas amount can be sprayed into by regulation, it is achieved carbon back raw material imperfect combustion,
Without outer for fuel combustion, reduce fuel cost, it is only necessary to be properly added excess carbon based raw material, make part carbon-based fuel the completeest
Full combustion heat release.Carbide outlet is arranged on furnace of calcium carbide bottom, and liquid carbide can regularly flow out.This furnace of calcium carbide is by oxygen full-boiled process
Combine production carbide with electrothermal way, by adding excess carbon based raw material in the feed, and is passed through oxygen-containing gas in furnace of calcium carbide,
Part carbon back raw material imperfect combustion heat release, improves material temperature, reduces and produces power consumption of calcium carbide, reduces carbide production electric power and becomes
This, improve carbide Business Economic Benefit.
In sum, have the advantage that according to the furnace of calcium carbide of this utility model embodiment
1. can realize oxygen full-boiled process to be efficiently combined with electrothermal way, make full use of the heat that part carbon back raw material imperfect combustion produces,
Substitute For Partial electrothermal way needs the electric energy consumed such that it is able to effectively reduces electrothermal way carbide and produces power consumption, improves business economic
Benefit;
2. in furnace of calcium carbide, oxygen spray umbrella is set up on bed of material top, it is possible to realize the uniform contact of oxygen and carbon back raw material, it is achieved carbon
Substrates material imperfect combustion, stops the oxygen-enriched phenomenon in local;
3. without adding fresh fuel in oxygen full-boiled process, it is only necessary to make carbon back raw material suitably excess, operation letter in mixed material
Folk prescription is just, it is not necessary to additional fuel delivery port and device, reduces improvement cost;
The most existing furnace of calcium carbide discharging opening invariant position, it is ensured that carbide liquid can smooth and easy flow out, and ensure safety steady production;
The most only by part carbon back raw material imperfect combustion heat release, the quality of oxygen full-boiled process production carbide can significantly improved, drop simultaneously
Low electrothermal way power consumption, reduces and produces carbide power cost, improves business economic.
Understand for convenience, below the method utilizing furnace of calcium carbide of the present utility model to prepare carbide is described.Specifically,
With reference to Fig. 4, the method includes:
S100 oxygen heating reaction
According to embodiment of the present utility model, in this step, will pass through containing the mixed material of carbon back raw material and calcio raw material
Material inlet supplies to oxygen heating reaction district, simultaneously by oxygen-containing gas entrance to oxygen-containing gas spray umbrella supply oxygen-containing gas, makes
Obtain part carbon back raw material contact oxygen-containing gas generation imperfect combustion, in order to heating blends material, and obtain containing an oxidation
The tail gas of carbon.Thus, it is possible to utilize oxygen-containing gas spray umbrella to realize being evenly supplied of oxygen-containing gas so that mixed material is with oxygen-containing
Gas is fully contacted, thus the material heating non-uniform phenomenon that effectively prevent furnace of calcium carbide interior local oxygen-enriched combusting and cause, and
And by regulation spray into oxygen-containing gas amount realize part carbon back material imperfect combustion produce heat in order to heat remaining mixture
Material, such that it is able to significantly reduce electrothermal way to produce the energy consumption of carbide process, and will not produce owing to electrothermal way produces carbide process
Raw ash, thereby may be ensured that gained carbide has higher quality, thus can reduce carbide manufacturing enterprise power cost
Improve carbide quality simultaneously, improve Business Economic Benefit.It should be noted that above-mentioned for the feature described by furnace of calcium carbide and
Advantage is equally applicable to this method preparing carbide, and here is omitted.
Specifically, in this step, the mixed material containing carbon back raw material and calcio raw material is entered electricity by material inlet 120
In stone stove, during mixed material falls, contact with the oxygen-containing gas of oxygen-containing gas spray umbrella 110 ejection, and part
Carbon back raw material carries out imperfect combustion in oxygen heating reaction district 100, and mixed material is heated by liberated heat, produces simultaneously
The raw imflammable gas rich in carbon monoxide.Owing to oxygen-containing gas spray umbrella 110 has previously described structure and set-up mode,
Therefore can be implemented in uniformly spraying into of oxygen-containing gas in oxygen heating reaction district 100, and uniformly mix with mixed material and contact, keep away
Exempt from local oxygen-enriched.Thus, it is only necessary in mixed material, suitably increase the content of carbon back material, can be in oxygen heating reaction district 100
Interior mixed material is heated to enough temperature, it is not necessary to extra in furnace of calcium carbide, supply fuel.According to enforcement of the present utility model
Example, the mixed material processed through oxygen heating reaction district 100 can be heated to 1200~1500 degrees Celsius.
It should be noted that in this utility model, in mixed material carbon back raw material and the concrete kind of calcio raw material and
Concrete mixed proportion is not particularly limited, and those skilled in the art can select according to practical situation.Such as, according to this
One embodiment of utility model, can be (0.7~0.9) according to the mass ratio of carbon back raw material and calcio raw material: 1 mixes.
Inventor finds through further investigation and great many of experiments, if carbon back material rate in the mixture of carbon back raw material and calcio raw material
Too high, then carbon back material excess in carbide produces, suppression carbide reaction carries out, and produces carbon distribution;If ratio is too low, then
Calcium-based material excess in carbide produces, the Acetylenogen. of carbide reaction output is less, causes carbide product qualities poor.Such as,
According to embodiment of the present utility model, in calcio raw material, the content of calcium oxide can be 90~95wt%, in carbon back raw material
The content of fixed carbon can be 80~90wt%.In this utility model, oxygen-containing gas can be air, oxygen-enriched air and
Oxygen, or the gaseous mixture of above-mentioned gas.Those skilled in the art can be according to the particular make-up of mixed material and carbide
The concrete structure of stove, determines concrete kind and the composition of oxygen-containing gas, as long as can make to fit in oxygen heating reaction district
The carbon back raw material generation imperfect combustion of amount, and utilize combustion heat release mixed material to be heated to previously described temperature i.e.
Can.
S200 carbide reacts
According to embodiment of the present utility model, in this step, processed through oxygen heating reaction by electrode arc electric discharge heating
Mixed material after the heating obtained, in order to make the another part of carbonaceous material in the mixed material after heating former with calcio
There is carbide reaction in material, it is thus achieved that carbide.Thus, it is possible to utilize the sensible heat contained in the mixed material above produced, saving should
The electric energy consumed required for the temperature occurring carbide to react to enable mixed material to arrive in step, such that it is able to save energy
Consumption, reduces production cost.
Specifically, in this step, electrode 210 is embedded into carbide reaction zone 200 from the furnace roof of furnace of calcium carbide, in order to pass through
Arc discharge, heats the bed of material being deposited in carbide reaction zone 200, in order to make material layer temperature raise and carbide reaction occurs.
In other words, by being arranged on the electrode 210 that furnace of calcium carbide top is stretched in carbide reaction zone 200 through oxygen heating reaction district 100
Mixed material in carbide reaction zone 200 is heated.Specifically, according to embodiment of the present utility model, carbide reacts
Temperature can be 2000~2200 degrees Celsius.The liquid carbide product generated, can be by being positioned at the carbide bottom furnace of calcium carbide
Outlet 220 outflow.The calcium carbide liquid that reaction generates flows to bottom furnace of calcium carbide under gravity, thus, it is possible to by simplicity
Arrange timing open carbide outlet 220, make liquid carbide periodically flow out.The calcium carbide tail gas that carbide reaction generates is at furnace of calcium carbide
Move the most from bottom to top, the offgas outlet 140 being arranged on furnace of calcium carbide top (i.e. in oxygen heating reaction district) discharge.Due to electricity
The reaction temperature that stone produces reaction is higher, therefore also contains certain sensible heat in calcium carbide tail gas.This partial heat is at calcium carbide tail gas
From bottom to top during motion, the mixed material fallen in furnace of calcium carbide can be passed to, and then can improve mixed further
, there is the required energy provided of carbide reaction such that it is able to save in the temperature of compound material.
In sum, the method that utilization prepares carbide according to the furnace of calcium carbide of this utility model embodiment has the advantage that
1. can realize oxygen full-boiled process to be efficiently combined with electrothermal way, make full use of the heat that part carbon back raw material imperfect combustion produces,
Substitute For Partial electrothermal way needs the electric energy consumed such that it is able to effectively reduces electrothermal way carbide and produces power consumption, improves business economic
Benefit;
2. in furnace of calcium carbide, oxygen spray umbrella is set up on bed of material top, it is possible to realize the uniform contact of oxygen and carbon back raw material, it is achieved carbon
Substrates material imperfect combustion, stops the oxygen-enriched phenomenon in local;
3. without adding fresh fuel in oxygen full-boiled process, it is only necessary to make carbon back raw material suitably excess, operation letter in mixed material
Folk prescription is just, it is not necessary to additional fuel delivery port and device, reduces improvement cost;
The most existing furnace of calcium carbide discharging opening invariant position, it is ensured that carbide liquid can smooth and easy flow out, and ensure safety steady production;
The most only by part carbon back raw material imperfect combustion heat release, the quality of oxygen full-boiled process production carbide can significantly improved, drop simultaneously
Low electrothermal way power consumption, reduces and produces carbide power cost, improves business economic.
Below in conjunction with embodiment, scheme of the present utility model is explained.It will be understood to those of skill in the art that following
Embodiment is merely to illustrate this utility model, and should not be regarded as limiting scope of the present utility model.In embodiment unreceipted specifically
Technology or condition, according to the technology described by the document in this area or condition or carry out according to product description.Used
Reagent or instrument unreceipted production firm person, be can by city available from conventional products.
Embodiment 1:
Middle and upper part in furnace of calcium carbide, at distance bed of material top 400mm, arranges two groups of oxygen-containing gas spray umbrellas.
Carbon back raw material: main character is shown in Table 1.
Table 1 carbon back raw material main character
Project | Unit | Numerical value | Remarks |
Quan Shui | Wt% | 14.3 | As-received |
Fixed carbon | Wt% | 84.7 | Butt |
Volatile matter | Wt% | 7.8 | Butt |
Ash | Wt% | 7.5 | Butt |
Calcio raw material: calcium-based material is the Calx of CaO content 92.4%.
The carbon back raw material of excess is sent in furnace of calcium carbide after mixing homogeneously with calcio raw material, carbon back raw material: calcio raw material=0.8~0.9:1
(mass ratio), part carbon back raw material imperfect combustion, mixed material is heated to about 1500 DEG C, carbon back raw material is incomplete
The CO gas that burning produces, is discharged by offgas outlet, and hot mixture material constantly declines with the bed of material, is down to electrode arc and adds
Hot-zone, electrode arc heat release heated material to 2000~2200 DEG C, reaction solution state carbide, the calcium carbide stove exhaust of generation,
Being discharged by offgas outlet, raw material enters stove and is about 45min to the carbide product time of coming out of the stove, and melted carbide is discharged from furnace bottom, cold
Crush the most afterwards.The 79.53wt% in Acetylenogen. in product carbide, gas forming amount 296L/kg.
In description of the present utility model, it is to be understood that term " on ", D score, " top ", the orientation of the instruction such as " end "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description,
Rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, because of
This is it is not intended that to restriction of the present utility model.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication;Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For
For those of ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be
Any one or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model
Above-described embodiment be changed, revise, to replace and modification.
Claims (5)
1. a furnace of calcium carbide, it is characterised in that including:
Top-down oxygen heating reaction district and carbide reaction zone;
Oxygen-containing gas spray umbrella, described oxygen-containing gas spray umbrella is arranged on described oxygen heating reaction district;
Material inlet, described material inlet is located at described oxygen heating reaction district and is positioned at the top of described oxygen-containing gas spray umbrella;
Oxygen-containing gas entrance, described oxygen-containing gas entrance is located at described oxygen heating reaction district and is connected with described oxygen-containing gas spray umbrella;
Offgas outlet, described offgas outlet is located at described oxygen heating reaction district;
Electrode, described electrode is embedded into described carbide reaction zone from described furnace of calcium carbide furnace roof;And
Carbide exports, and the outlet of described carbide is located at described carbide reaction zone.
Furnace of calcium carbide the most according to claim 1, it is characterised in that described oxygen-containing gas spray pack includes:
Admission line, described admission line is arranged in described oxygen heating reaction district in the horizontal direction, and described admission line and institute
State oxygen-containing gas entrance to be connected;And
Multiple nozzles, described nozzle vertically and is disposed on the lower section of described admission line, and described nozzle includes from top to bottom
Inducing QI portion and give vent to anger portion, and described inducing QI portion is connected with described admission line, described in give vent to anger portion sidewall on be provided with multiple
Gas outlet.
Furnace of calcium carbide the most according to claim 2, it is characterised in that described in the give vent to anger longitudinal section in portion long-pending the most gradually
Reduce.
Furnace of calcium carbide the most according to claim 1, it is characterised in that include that multiple described oxygen-containing gas sprays umbrella is described many
Described admission line on individual oxygen-containing gas spray umbrella is arranged in parallel in same level.
Furnace of calcium carbide the most according to claim 4, it is characterised in that the described nozzle on described oxygen-containing gas spray umbrella and institute
Stating the beeline between the bed of material of carbide reaction zone is 200~800mm.
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CN201620257307.4U CN205472696U (en) | 2016-03-30 | 2016-03-30 | Calcium carbide furnace |
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CN201620257307.4U CN205472696U (en) | 2016-03-30 | 2016-03-30 | Calcium carbide furnace |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645411A (en) * | 2016-03-30 | 2016-06-08 | 神雾环保技术股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide |
CN108295776A (en) * | 2018-04-27 | 2018-07-20 | 中国科学院上海应用物理研究所 | A kind of solid salt heating melting plant and method |
CN108439407A (en) * | 2018-06-07 | 2018-08-24 | 中国科学院上海高等研究院 | A kind of device of the hot method production calcium carbide of oxygen |
-
2016
- 2016-03-30 CN CN201620257307.4U patent/CN205472696U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645411A (en) * | 2016-03-30 | 2016-06-08 | 神雾环保技术股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide |
CN108295776A (en) * | 2018-04-27 | 2018-07-20 | 中国科学院上海应用物理研究所 | A kind of solid salt heating melting plant and method |
CN108295776B (en) * | 2018-04-27 | 2020-03-27 | 中国科学院上海应用物理研究所 | Solid salt heating and melting device and method |
CN108439407A (en) * | 2018-06-07 | 2018-08-24 | 中国科学院上海高等研究院 | A kind of device of the hot method production calcium carbide of oxygen |
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